├── pcb
    ├── CPL.xlsx
    ├── BOM-JLCPCB.xls
    ├── fp-lib-table
    ├── sym-lib-table
    ├── ch552g-dev-board.kicad_prl
    ├── ch552g
    │   ├── ch552g.kicad_sym
    │   └── SOIC-16_3.9x9.9mm_Pitch1.27mm.kicad_mod
    ├── ch552g-dev-board.kicad_pro
    └── ch552g-dev-board.kicad_sch
├── ch552g-dev-board.jpg
├── .gitmodules
├── example-code
    ├── src
    │   ├── main.c
    │   └── i2c_bb.c
    ├── include
    │   └── i2c_bb.h
    └── Makefile
├── .gitignore
├── shell.nix
├── README.md
└── LICENSE


/pcb/CPL.xlsx:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/blueOkiris/ch552g-dev-board/HEAD/pcb/CPL.xlsx


--------------------------------------------------------------------------------
/ch552g-dev-board.jpg:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/blueOkiris/ch552g-dev-board/HEAD/ch552g-dev-board.jpg


--------------------------------------------------------------------------------
/pcb/BOM-JLCPCB.xls:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/blueOkiris/ch552g-dev-board/HEAD/pcb/BOM-JLCPCB.xls


--------------------------------------------------------------------------------
/.gitmodules:
--------------------------------------------------------------------------------
1 | [submodule "ch554_sdcc"]
2 | 	path = ch554_sdcc
3 | 	url = https://github.com/Blinkinlabs/ch554_sdcc.git
4 | 


--------------------------------------------------------------------------------
/pcb/fp-lib-table:
--------------------------------------------------------------------------------
1 | (fp_lib_table
2 |   (version 7)
3 |   (lib (name "ch552g")(type "KiCad")(uri "${KIPRJMOD}/ch552g")(options "")(descr ""))
4 | )
5 | 


--------------------------------------------------------------------------------
/pcb/sym-lib-table:
--------------------------------------------------------------------------------
1 | (sym_lib_table
2 |   (version 7)
3 |   (lib (name "ch552g")(type "KiCad")(uri "${KIPRJMOD}/ch552g/ch552g.kicad_sym")(options "")(descr ""))
4 | )
5 | 


--------------------------------------------------------------------------------
/example-code/src/main.c:
--------------------------------------------------------------------------------
 1 | // Entry point for example code
 2 | 
 3 | #include <ch554.h>
 4 | #include <debug.h>
 5 | #include <i2c_bb.h>
 6 | 
 7 | void main(void) {
 8 |     CfgFsys();
 9 |     i2c_bb_init();
10 | 
11 |     while (1);
12 | }
13 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # PCB output and backups
 2 | *.zip
 3 | *.gbl
 4 | *.gbs
 5 | *.gbp
 6 | *.gbo
 7 | *.gm1
 8 | *.gtl
 9 | *.gts
10 | *.gtp
11 | *.gto
12 | *.gbrjob
13 | *.drl
14 | *.drl
15 | *.lck
16 | 
17 | # Build env
18 | .venv
19 | 
20 | # ch554_sdcc output
21 | *.ihx
22 | *.lk
23 | *.map
24 | *.mem
25 | *.lst
26 | *.rel
27 | *.rst
28 | *.sym
29 | *.asm
30 | *.adb
31 | *.hex
32 | *.bin
33 | 
34 | 


--------------------------------------------------------------------------------
/shell.nix:
--------------------------------------------------------------------------------
 1 | { pkgs ? import <nixpkgs> { } }:
 2 | 
 3 | let
 4 |     unstable = import
 5 |         (fetchTarball "https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz") {};
 6 |     buildLibs = with pkgs; (with xorg; [
 7 |         hidapi
 8 |         libusb1
 9 |     ]);
10 | in with pkgs; mkShell {
11 |     buildInputs = [
12 |         gnumake
13 |         libusb
14 |         python3
15 |         sdcc
16 |         virtualenv
17 |     ] ++ buildLibs;
18 |     shellHook = ''
19 |         export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${lib.makeLibraryPath buildLibs}"
20 |         export XDG_DATA_DIRS="${gsettings-desktop-schemas}/share/gsettings-schemas/${gsettings-desktop-schemas.name}:${gtk3}/share/gsettings-schemas/${gtk3.name}"
21 |         virtualenv .venv
22 |         source .venv/bin/activate
23 |         python3 -m pip install ch55xtool
24 |         python3 -m pip install pyusb
25 |     '';
26 | }
27 | 
28 | 


--------------------------------------------------------------------------------
/example-code/include/i2c_bb.h:
--------------------------------------------------------------------------------
 1 | // API for complete bit-banged I2C library (since ch554_sdcc one doesn't really work)
 2 | 
 3 | #pragma once
 4 | 
 5 | #include <stdint.h>
 6 | 
 7 | // Change SDA_PORT/PIN and SCL_PORT/PIN to set your desired I2C ports
 8 | #define SDA_PORT_PU     P1_DIR_PU
 9 | #define SDA_PORT_OC     P1_MOD_OC
10 | #define SDA_PORT        P1
11 | #define SDA_PIN         6
12 | #define SCL_PORT_PU     P1_DIR_PU
13 | #define SCL_PORT_OC     P1_MOD_OC
14 | #define SCL_PORT        P1
15 | #define SCL_PIN         7
16 | 
17 | /*
18 |  * Usage:
19 |  *
20 |  * At start of program:
21 |  *     i2c_bb_init();
22 |  *
23 |  * To write data:
24 |  *     i2c_bb_start(SLAVE_ADDRESS);
25 |  *     i2c_bb_write(<data 1>);
26 |  *     i2c_bb_write(<data 2>);
27 |  *     ...
28 |  *     i2c_bb_stop();
29 |  * or something like:
30 |  *     i2c_bb_start(SLAVE_ADDRESS);
31 |  *     for (size_t i = 0; i < DATA_LEN; i++) {
32 |  *         i2c_bb_write(data[i]);
33 |  *     }
34 |  *     i2c_bb_stop();
35 |  *
36 |  * To read data:
37 |  *     i2c_bb_start(SLAVE_ADDRESS);
38 |  *     uint8_t data = i2c_read();
39 |  *     i2c_bb_stop();
40 |  */
41 | 
42 | void i2c_bb_init(void);
43 | void i2c_bb_start(const uint8_t addr);
44 | void i2c_bb_write(const uint8_t data);
45 | uint8_t i2c_bb_read(void);
46 | void i2c_bb_stop(void);
47 | 
48 | 


--------------------------------------------------------------------------------
/example-code/Makefile:
--------------------------------------------------------------------------------
 1 | # Build system for Game-Card game "Ping"
 2 | 
 3 | # Settings
 4 | 
 5 | ## MCU Settings
 6 | 
 7 | CPU_FREQ :=		24000000
 8 | XRAM_LOC :=		0x0000
 9 | XRAM_SIZE :=	0x0400
10 | IRAM_SIZE :=	256
11 | CODE_SIZE :=	0x3C00
12 | 
13 | ## Project settings
14 | 
15 | OBJNAME :=		snek
16 | SRC :=			$(wildcard src/*.c) \
17 | 				$(wildcard ../ch554_sdcc/include/*.c)
18 | HFILES :=		$(wildcard include/*.h) \
19 | 				$(wildcard ../ch554_sdcc/*.h)
20 | RFILES :=		$(subst .c,.rel,$(subst ../ch554_sdcc/include/,,$(subst src/,,$(SRC))))
21 | 
22 | ## Compiler
23 | 
24 | CC :=			sdcc
25 | CFLAGS :=		-mmcs51 --model-small --no-xinit-opt -DFREQ_SYS=$(CPU_FREQ) \
26 | 				--xram-size $(XRAM_SIZE) --xram-loc $(XRAM_LOC) --code-size $(CODE_SIZE) \
27 | 				--iram-size $(IRAM_SIZE) \
28 | 				-Iinclude -I../ch554_sdcc/include
29 | 
30 | # Targets
31 | 
32 | ## Helpers
33 | 
34 | .PHONY: all
35 | all: $(OBJNAME).bin $(OBJNAME).hex
36 | 
37 | .PHONY: clean
38 | clean:
39 | 	rm -rf *.ihx *.lk *.map *.mem *.lst *.rel *.rst *.sym *.asm *.adb *.hex *.bin
40 | 
41 | ## Primary
42 | 
43 | %.rel: src/%.c $(HFILES)
44 | 	$(CC) $(CFLAGS) -c $<
45 | 
46 | %.rel: ../ch554_sdcc/include/%.c $(HFILES)
47 | 	$(CC) $(CFLAGS) -c $<
48 | 
49 | $(OBJNAME).ihx: $(RFILES)
50 | 	$(CC) $(notdir $(RFILES)) $(CFLAGS) -o $@
51 | 
52 | $(OBJNAME).hex: $(OBJNAME).ihx
53 | 	packihx $< > $@
54 | 
55 | $(OBJNAME).bin: $(OBJNAME).ihx
56 | 	objcopy -I ihex -O binary $< $@
57 | 
58 | .PHONY: upload
59 | upload: $(OBJNAME).bin
60 | 	python -m ch55xtool -f $<
61 | 
62 | 


--------------------------------------------------------------------------------
/pcb/ch552g-dev-board.kicad_prl:
--------------------------------------------------------------------------------
 1 | {
 2 |   "board": {
 3 |     "active_layer": 36,
 4 |     "active_layer_preset": "All Layers",
 5 |     "auto_track_width": false,
 6 |     "hidden_netclasses": [],
 7 |     "hidden_nets": [],
 8 |     "high_contrast_mode": 0,
 9 |     "net_color_mode": 1,
10 |     "opacity": {
11 |       "images": 0.6,
12 |       "pads": 1.0,
13 |       "tracks": 1.0,
14 |       "vias": 1.0,
15 |       "zones": 0.6
16 |     },
17 |     "selection_filter": {
18 |       "dimensions": true,
19 |       "footprints": true,
20 |       "graphics": true,
21 |       "keepouts": true,
22 |       "lockedItems": false,
23 |       "otherItems": true,
24 |       "pads": true,
25 |       "text": true,
26 |       "tracks": true,
27 |       "vias": true,
28 |       "zones": true
29 |     },
30 |     "visible_items": [
31 |       0,
32 |       1,
33 |       2,
34 |       3,
35 |       4,
36 |       5,
37 |       8,
38 |       9,
39 |       10,
40 |       11,
41 |       12,
42 |       13,
43 |       15,
44 |       16,
45 |       17,
46 |       18,
47 |       19,
48 |       20,
49 |       21,
50 |       22,
51 |       23,
52 |       24,
53 |       25,
54 |       26,
55 |       27,
56 |       28,
57 |       29,
58 |       30,
59 |       32,
60 |       33,
61 |       34,
62 |       35,
63 |       36,
64 |       39,
65 |       40
66 |     ],
67 |     "visible_layers": "fffffff_ffffffff",
68 |     "zone_display_mode": 0
69 |   },
70 |   "git": {
71 |     "repo_password": "",
72 |     "repo_type": "",
73 |     "repo_username": "",
74 |     "ssh_key": ""
75 |   },
76 |   "meta": {
77 |     "filename": "ch552g-dev-board.kicad_prl",
78 |     "version": 3
79 |   },
80 |   "project": {
81 |     "files": []
82 |   }
83 | }
84 | 


--------------------------------------------------------------------------------
/example-code/src/i2c_bb.c:
--------------------------------------------------------------------------------
 1 | // Implement bit-banging for I2C
 2 | 
 3 | #include <stdint.h>
 4 | #include <8051.h>
 5 | #include <ch554.h>
 6 | #include <debug.h>
 7 | #include <i2c_bb.h>
 8 | 
 9 | uint8_t SDA_PIN_BIT = 0;
10 | uint8_t SCL_PIN_BIT = 0;
11 | 
12 | void set_sda(uint8_t on) {
13 |     if (on) {
14 |         SDA_PORT |= SDA_PIN_BIT;
15 |     } else {
16 |         SDA_PORT &= ~SDA_PIN_BIT;
17 |     }
18 | }
19 | 
20 | uint8_t get_sda(void) {
21 |     return SDA_PORT & SDA_PIN_BIT > 0;
22 | }
23 | 
24 | void read_ack(void) {
25 |     SDA_PORT |= SDA_PIN_BIT;
26 |     SCL_PORT |= SCL_PIN_BIT;
27 | 
28 |     // Set SDA to input to "read"
29 |     SDA_PORT_PU &= ~SDA_PIN_BIT;
30 |     SCL_PORT &= ~SCL_PIN_BIT;
31 | 
32 |     SDA_PORT_PU |= SDA_PIN_BIT;
33 | }
34 | 
35 | void i2c_bb_init(void) {
36 |     SDA_PIN_BIT = 1 << SDA_PIN;
37 |     SCL_PIN_BIT = (uint8_t) (1 << SCL_PIN);
38 | 
39 |     // Put SDA and SCL into output mode
40 |     SDA_PORT_PU |= SDA_PIN;
41 |     SDA_PORT_OC &= ~SDA_PIN;
42 |     SCL_PORT_PU |= SCL_PIN;
43 |     SCL_PORT_OC &= ~SDA_PIN;
44 | 
45 |     SDA_PORT |= SDA_PIN_BIT;
46 |     SCL_PORT |= SCL_PIN_BIT;
47 | }
48 | 
49 | void i2c_bb_start(const uint8_t addr) {
50 |     // Begin transmission
51 |     SDA_PORT &= ~SDA_PIN_BIT;
52 |     SCL_PORT &= ~SCL_PIN_BIT;
53 | 
54 |     // Set addr & R/W
55 |     const uint8_t data = (addr << 1) + 0; // Do "+ 1" for Read
56 |     for (int8_t i = 7; i >= 0; i--) {
57 |         set_sda((data >> i) & 0x01);
58 |         SCL_PORT |= SCL_PIN_BIT;
59 |         SCL_PORT &= ~SCL_PIN_BIT;
60 |     }
61 |     read_ack();
62 | }
63 | 
64 | void i2c_bb_write(const uint8_t data) {
65 |     for (int8_t i = 7; i >= 0; i--) {
66 |         set_sda((data >> i) & 0x01);
67 |         SCL_PORT |= SCL_PIN_BIT;
68 |         SCL_PORT &= ~SCL_PIN_BIT;
69 |     }
70 |     read_ack();
71 | }
72 | 
73 | uint8_t i2c_bb_read(void) {
74 |     uint8_t data;
75 | 
76 |     SDA_PORT_PU &= ~SDA_PIN_BIT; // Set SDA to input to "read"
77 |     for (int8_t i = 7; i >= 0; i--) {
78 |         SCL_PORT |= SCL_PIN_BIT;
79 |         data |= get_sda() << i;
80 |         SCL_PORT &= ~SCL_PIN_BIT;
81 |     }
82 |     read_ack(); // Sets back to write for us
83 | 
84 |     return data;
85 | }
86 | 
87 | void i2c_bb_stop(void) {
88 |     SDA_PORT |= SDA_PIN_BIT;
89 |     SCL_PORT |= SCL_PIN_BIT;
90 | }
91 | 
92 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # CH552G Dev Board
 2 | 
 3 | ## Description
 4 | 
 5 | A simple breakout board with minimal hardware design for the CH552g as well as a C project to be used as a basis.
 6 | 
 7 | I've become fond of the CH552g for projects as it's simple like AVR unlike something like ARM, but it doesn't require a programmer and has built-in USB support from the factory, unlike something like AVR but like ARM.
 8 | 
 9 | To ensure I don't have to constantly order pcb after pcb, I've created this dev board that can go on a breadboard, so I can prototype with the chip more easily.
10 | 
11 | ![img](./ch552g-dev-board.jpg)
12 | 
13 | ## Order Boards
14 | 
15 | Open up KiCAD and export the Gerber and Drill files and zip them up or grab a zip from Releases.
16 | 
17 | Then go to JLCPCB's website, start a new order with the zip file, and select PCB Assembly.
18 | 
19 | Then upload the provided BOM and CPL (in the pcb/ folder) and submit an order.
20 | 
21 | ## Build Example Code 
22 | 
23 | First, clone the repo, then make sure you clone all submodules: `git submodule update --init --recursive`
24 | 
25 | ### Dependencies
26 | 
27 | - Linux:
28 |    + Just use [nix](https://nixos.org/download/). Use `nix-shell` to get the following:
29 |       - gnumake
30 |       - hidapi
31 |       - libusb1
32 |       - libusb
33 |       - python3
34 |       - sdcc
35 |       - virtualenv which will create .venv w/
36 |          + pyusb
37 |          + ch55xtool
38 | - Windows:
39 |    + Install [sdcc](https://sourceforge.net/projects/sdcc/files/latest/download?source=files)
40 |    + Install [mingw](https://sourceforge.net/projects/mingw/files/latest/download)
41 |    + Install [WCHISPTool](https://www.wch.cn/download/WCHISPTool_Setup_exe.html)
42 |       - Only relevant for uploading, not building
43 | 
44 | ### Build
45 | 
46 | On Linux, make sure you have the python virtualenv active and sdcc in your path (this happens every time you run `nix-shell`)
47 | 
48 | Run `make -C example-code` (or `mingw32-make -C example-code`), and it will build everything.
49 | 
50 | ### Upload
51 | 
52 | __Linux:__
53 | 
54 | Assuming the program has been built, to upload:
55 | 
56 | 1. Hold down a button on the board you want to upload to
57 | 2. Plug into USB and let go of the button
58 | 3. Within 2 seconds of letting go, run `make -C example-code upload`
59 | 
60 | If it fails, just try again a few times. If it's still not working, then repeat the process.
61 | 
62 | __Windows:__
63 | 
64 | Use WCHISP Studio
65 | 
66 | 


--------------------------------------------------------------------------------
/pcb/ch552g/ch552g.kicad_sym:
--------------------------------------------------------------------------------
 1 | (kicad_symbol_lib (version 20220914) (generator kicad_symbol_editor)
 2 |   (symbol "CH552G" (in_bom yes) (on_board yes)
 3 |     (property "Reference" "IC" (at 2.0066 -6.35 0)
 4 |       (effects (font (size 2.0066 2.0066) bold) (justify right))
 5 |     )
 6 |     (property "Value" "CH552G" (at -3.81 13.97 0)
 7 |       (effects (font (size 1.27 1.27) bold) (justify left))
 8 |     )
 9 |     (property "Footprint" "CH552G_dev:SOIC-16_3.9x9.9mm_Pitch1.27mm" (at -20.32 -26.67 0)
10 |       (effects (font (size 1.27 1.27)) (justify left) hide)
11 |     )
12 |     (property "Datasheet" "https://datasheet.lcsc.com/szlcsc/1812131556_Jiangsu-Qin-Heng-CH552G_C111292.pdf" (at -8.89 20.32 0)
13 |       (effects (font (size 1.27 1.27)) hide)
14 |     )
15 |     (property "ki_keywords" "8-bit microcontroller with USB Interface 256B iRAM and 1KB xRAM" (at 0 0 0)
16 |       (effects (font (size 1.27 1.27)) hide)
17 |     )
18 |     (property "ki_description" "microcontroller, USB, SOP-16, SOP16, SOIC-16, 8-bit" (at 0 0 0)
19 |       (effects (font (size 1.27 1.27)) hide)
20 |     )
21 |     (property "ki_fp_filters" "SOP*3.9x9.9mm*P1.27mm*" (at 0 0 0)
22 |       (effects (font (size 1.27 1.27)) hide)
23 |     )
24 |     (symbol "CH552G_0_1"
25 |       (rectangle (start -31.75 12.7) (end 31.75 -25.4)
26 |         (stroke (width 0.254) (type solid))
27 |         (fill (type background))
28 |       )
29 |     )
30 |     (symbol "CH552G_1_1"
31 |       (pin bidirectional line (at -34.29 11.43 0) (length 2.54)
32 |         (name "P3.2/TXD1/INT0/VBUS1/AIN3" (effects (font (size 1.27 1.27))))
33 |         (number "1" (effects (font (size 1.27 1.27))))
34 |       )
35 |       (pin bidirectional line (at 34.29 -19.05 180) (length 2.54)
36 |         (name "P3.3/INT1" (effects (font (size 1.27 1.27))))
37 |         (number "10" (effects (font (size 1.27 1.27))))
38 |       )
39 |       (pin bidirectional line (at 34.29 -13.97 180) (length 2.54)
40 |         (name "P3.4/PWM2/RXD1/T0" (effects (font (size 1.27 1.27))))
41 |         (number "11" (effects (font (size 1.27 1.27))))
42 |       )
43 |       (pin bidirectional line (at 34.29 -8.89 180) (length 2.54)
44 |         (name "P3.6/UDP" (effects (font (size 1.27 1.27))))
45 |         (number "12" (effects (font (size 1.27 1.27))))
46 |       )
47 |       (pin bidirectional line (at 34.29 -3.81 180) (length 2.54)
48 |         (name "P3.7/UDM" (effects (font (size 1.27 1.27))))
49 |         (number "13" (effects (font (size 1.27 1.27))))
50 |       )
51 |       (pin power_in line (at 34.29 1.27 180) (length 2.54)
52 |         (name "GND/VSS" (effects (font (size 1.27 1.27))))
53 |         (number "14" (effects (font (size 1.27 1.27))))
54 |       )
55 |       (pin power_in line (at 34.29 6.35 180) (length 2.54)
56 |         (name "VCC/VDD" (effects (font (size 1.27 1.27))))
57 |         (number "15" (effects (font (size 1.27 1.27))))
58 |       )
59 |       (pin power_in line (at 34.29 11.43 180) (length 2.54)
60 |         (name "V33" (effects (font (size 1.27 1.27))))
61 |         (number "16" (effects (font (size 1.27 1.27))))
62 |       )
63 |       (pin bidirectional line (at -34.29 6.35 0) (length 2.54)
64 |         (name "P1.4/T2/CAP1/SCS/TIN2/UCC1/AIN1" (effects (font (size 1.27 1.27))))
65 |         (number "2" (effects (font (size 1.27 1.27))))
66 |       )
67 |       (pin bidirectional line (at -34.29 1.27 0) (length 2.54)
68 |         (name "P1.5/MOSI/PWM1/TIN3/UCC2/AIN2" (effects (font (size 1.27 1.27))))
69 |         (number "3" (effects (font (size 1.27 1.27))))
70 |       )
71 |       (pin bidirectional line (at -34.29 -3.81 0) (length 2.54)
72 |         (name "P1.6/MISO/RXD1/TIN4" (effects (font (size 1.27 1.27))))
73 |         (number "4" (effects (font (size 1.27 1.27))))
74 |       )
75 |       (pin bidirectional line (at -34.29 -8.89 0) (length 2.54)
76 |         (name "P1.7/SCK/TXD1/TIN5" (effects (font (size 1.27 1.27))))
77 |         (number "5" (effects (font (size 1.27 1.27))))
78 |       )
79 |       (pin bidirectional line (at -34.29 -13.97 0) (length 2.54)
80 |         (name "RST/T2EX/CAP2" (effects (font (size 1.27 1.27))))
81 |         (number "6" (effects (font (size 1.27 1.27))))
82 |       )
83 |       (pin bidirectional line (at -34.29 -19.05 0) (length 2.54)
84 |         (name "P3.1/PWM2/TXD" (effects (font (size 1.27 1.27))))
85 |         (number "7" (effects (font (size 1.27 1.27))))
86 |       )
87 |       (pin bidirectional line (at -34.29 -24.13 0) (length 2.54)
88 |         (name "P3.0/PWM1/RXD" (effects (font (size 1.27 1.27))))
89 |         (number "8" (effects (font (size 1.27 1.27))))
90 |       )
91 |       (pin bidirectional line (at 34.29 -24.13 180) (length 2.54)
92 |         (name "P1.1/T2EX/CAP2/TIN1/VBUS2/AIN0" (effects (font (size 1.27 1.27))))
93 |         (number "9" (effects (font (size 1.27 1.27))))
94 |       )
95 |     )
96 |   )
97 | )
98 | 


--------------------------------------------------------------------------------
/pcb/ch552g/SOIC-16_3.9x9.9mm_Pitch1.27mm.kicad_mod:
--------------------------------------------------------------------------------
 1 | (footprint "SOIC-16_3.9x9.9mm_Pitch1.27mm" (version 20221018) (generator pcbnew)
 2 |   (layer "F.Cu")
 3 |   (descr "16-Lead Plastic Small Outline (SL) - Narrow, 3.90 mm Body [SOIC] (see Microchip Packaging Specification 00000049BS.pdf)")
 4 |   (tags "SOIC 1.27")
 5 |   (attr smd)
 6 |   (fp_text reference "REF**" (at 0 1.27 90) (layer "F.SilkS")
 7 |       (effects (font (size 1 1) (thickness 0.15)))
 8 |     (tstamp a9199c87-7aa1-4a9a-ac0b-35b6c06c374e)
 9 |   )
10 |   (fp_text value "SOIC-16_3.9x9.9mm_Pitch1.27mm" (at 0 6) (layer "F.Fab")
11 |       (effects (font (size 1 1) (thickness 0.15)))
12 |     (tstamp 046a53a9-7d9f-46a7-9d84-3a71f7fe8994)
13 |   )
14 |   (fp_text user "${REFERENCE}" (at 0 -6.35) (layer "F.Fab")
15 |       (effects (font (size 0.9 0.9) (thickness 0.135)))
16 |     (tstamp c31697b9-3e14-4654-a580-d87439ccff37)
17 |   )
18 |   (fp_line (start -1.524 -4.826) (end -1.524 4.572)
19 |     (stroke (width 0.15) (type solid)) (layer "F.SilkS") (tstamp 558f97e5-ed12-49ab-b30d-e1be908e2695))
20 |   (fp_line (start -1.524 4.572) (end -1.524 4.826)
21 |     (stroke (width 0.15) (type solid)) (layer "F.SilkS") (tstamp 28cf8ae5-c288-4d2f-beb5-efc269cdf9bc))
22 |   (fp_line (start -1.524 4.826) (end 1.524 4.826)
23 |     (stroke (width 0.15) (type solid)) (layer "F.SilkS") (tstamp 035408bf-0a22-492f-a0ae-4eed19b01595))
24 |   (fp_line (start 1.524 -4.826) (end -1.524 -4.826)
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29 |     (stroke (width 0.15) (type solid)) (layer "F.SilkS") (tstamp e70c1fdd-fc57-4654-834c-2c4d8fea8909))
30 |   (fp_circle (center -0.762 -4.064) (end -0.508 -3.81)
31 |     (stroke (width 0.15) (type solid)) (fill none) (layer "F.SilkS") (tstamp c4b28a22-897f-4086-b494-61a384c1dc94))
32 |   (fp_line (start -3.7 -5.25) (end -3.7 5.25)
33 |     (stroke (width 0.05) (type solid)) (layer "F.CrtYd") (tstamp d36fa415-fee5-421a-9d4a-0485aa05234b))
34 |   (fp_line (start -3.7 -5.25) (end 3.7 -5.25)
35 |     (stroke (width 0.05) (type solid)) (layer "F.CrtYd") (tstamp 14205ea4-3152-4014-9008-7ba5ac6e594a))
36 |   (fp_line (start -3.7 5.25) (end 3.7 5.25)
37 |     (stroke (width 0.05) (type solid)) (layer "F.CrtYd") (tstamp 99ab288f-9a1c-4a25-aa0d-b70789de1dc6))
38 |   (fp_line (start 3.7 -5.25) (end 3.7 5.25)
39 |     (stroke (width 0.05) (type solid)) (layer "F.CrtYd") (tstamp 73cd6855-fd61-4842-b079-7993cd0fd479))
40 |   (fp_line (start -1.95 -3.95) (end -0.95 -4.95)
41 |     (stroke (width 0.15) (type solid)) (layer "F.Fab") (tstamp 83d5681b-912b-425e-bf2c-71419c9bd159))
42 |   (fp_line (start -1.95 4.95) (end -1.95 -3.95)
43 |     (stroke (width 0.15) (type solid)) (layer "F.Fab") (tstamp cc769011-0be8-4a45-9161-ebe48fafc2d2))
44 |   (fp_line (start -0.95 -4.95) (end 1.95 -4.95)
45 |     (stroke (width 0.15) (type solid)) (layer "F.Fab") (tstamp 1d40cf1b-9706-4bce-b082-427b9f42d4df))
46 |   (fp_line (start 1.95 -4.95) (end 1.95 4.95)
47 |     (stroke (width 0.15) (type solid)) (layer "F.Fab") (tstamp 932f3ef1-cc5d-404d-ba2f-f6599e26d0e0))
48 |   (fp_line (start 1.95 4.95) (end -1.95 4.95)
49 |     (stroke (width 0.15) (type solid)) (layer "F.Fab") (tstamp aea1fd99-f8b7-4055-a376-505d8414a651))
50 |   (pad "1" smd rect (at -2.7 -4.445) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp e04ab958-b3ae-4cb9-910b-a83d299ccf7d))
51 |   (pad "2" smd rect (at -2.7 -3.175) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 9ec58804-8fe9-4b6b-a6c8-3c33a15aeb55))
52 |   (pad "3" smd rect (at -2.7 -1.905) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 2c0d77e0-8279-47e6-91c2-c2d1e172fb08))
53 |   (pad "4" smd rect (at -2.7 -0.635) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 5e470e7a-bc49-480d-be36-d1c038143fe6))
54 |   (pad "5" smd rect (at -2.7 0.635) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 12df035e-cf98-48d7-8d1d-4cb61bf5108f))
55 |   (pad "6" smd rect (at -2.7 1.905) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 185904d9-cb9a-4c43-9373-2fa0be8531bd))
56 |   (pad "7" smd rect (at -2.7 3.175) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 4cc65f98-d5c3-4eab-801f-610247b86a04))
57 |   (pad "8" smd rect (at -2.7 4.445) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 87a96eef-b409-42d7-9c39-bdc4196d534d))
58 |   (pad "9" smd rect (at 2.7 4.445) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 20bb5b9c-701b-43c1-8049-a86cdf69a82a))
59 |   (pad "10" smd rect (at 2.7 3.175) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 07001ba3-dfcf-40b3-839e-cd5a40ca93c2))
60 |   (pad "11" smd rect (at 2.7 1.905) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp ce2165c8-fd89-4c56-a04e-4588fdd5afec))
61 |   (pad "12" smd rect (at 2.7 0.635) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 591b6f4e-b591-4618-bbaa-520b0dd6fc38))
62 |   (pad "13" smd rect (at 2.7 -0.635) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp b69ab3f3-ab1b-4252-b3a5-7e94403e18d4))
63 |   (pad "14" smd rect (at 2.7 -1.905) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp b34a9a42-361c-4d6b-bc62-b32a7551c1f8))
64 |   (pad "15" smd rect (at 2.7 -3.175) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 39995dda-fb1e-46e1-995d-eaea5195a27f))
65 |   (pad "16" smd rect (at 2.7 -4.445) (size 1.5 0.6) (layers "F.Cu" "F.Paste" "F.Mask") (tstamp 35b4f404-2a18-4352-aef0-af3cfbeaa67c))
66 |   (model "${KIPRJMOD}/3d_models/SOIC-16_3.9x9.9mm_P1.27mm.wrl"
67 |     (offset (xyz 0 0 0))
68 |     (scale (xyz 1 1 1))
69 |     (rotate (xyz 0 0 0))
70 |   )
71 | )
72 | 


--------------------------------------------------------------------------------
/pcb/ch552g-dev-board.kicad_pro:
--------------------------------------------------------------------------------
  1 | {
  2 |   "board": {
  3 |     "3dviewports": [],
  4 |     "design_settings": {
  5 |       "defaults": {
  6 |         "apply_defaults_to_fp_fields": false,
  7 |         "apply_defaults_to_fp_shapes": false,
  8 |         "apply_defaults_to_fp_text": false,
  9 |         "board_outline_line_width": 0.1,
 10 |         "copper_line_width": 0.2,
 11 |         "copper_text_italic": false,
 12 |         "copper_text_size_h": 1.5,
 13 |         "copper_text_size_v": 1.5,
 14 |         "copper_text_thickness": 0.3,
 15 |         "copper_text_upright": false,
 16 |         "courtyard_line_width": 0.05,
 17 |         "dimension_precision": 4,
 18 |         "dimension_units": 3,
 19 |         "dimensions": {
 20 |           "arrow_length": 1270000,
 21 |           "extension_offset": 500000,
 22 |           "keep_text_aligned": true,
 23 |           "suppress_zeroes": false,
 24 |           "text_position": 0,
 25 |           "units_format": 1
 26 |         },
 27 |         "fab_line_width": 0.1,
 28 |         "fab_text_italic": false,
 29 |         "fab_text_size_h": 1.0,
 30 |         "fab_text_size_v": 1.0,
 31 |         "fab_text_thickness": 0.15,
 32 |         "fab_text_upright": false,
 33 |         "other_line_width": 0.15,
 34 |         "other_text_italic": false,
 35 |         "other_text_size_h": 1.0,
 36 |         "other_text_size_v": 1.0,
 37 |         "other_text_thickness": 0.15,
 38 |         "other_text_upright": false,
 39 |         "pads": {
 40 |           "drill": 0.762,
 41 |           "height": 1.524,
 42 |           "width": 1.524
 43 |         },
 44 |         "silk_line_width": 0.15,
 45 |         "silk_text_italic": false,
 46 |         "silk_text_size_h": 1.0,
 47 |         "silk_text_size_v": 1.0,
 48 |         "silk_text_thickness": 0.15,
 49 |         "silk_text_upright": false,
 50 |         "zones": {
 51 |           "min_clearance": 0.5
 52 |         }
 53 |       },
 54 |       "diff_pair_dimensions": [
 55 |         {
 56 |           "gap": 0.0,
 57 |           "via_gap": 0.0,
 58 |           "width": 0.0
 59 |         }
 60 |       ],
 61 |       "drc_exclusions": [],
 62 |       "meta": {
 63 |         "version": 2
 64 |       },
 65 |       "rule_severities": {
 66 |         "annular_width": "error",
 67 |         "clearance": "error",
 68 |         "connection_width": "warning",
 69 |         "copper_edge_clearance": "error",
 70 |         "copper_sliver": "warning",
 71 |         "courtyards_overlap": "error",
 72 |         "diff_pair_gap_out_of_range": "error",
 73 |         "diff_pair_uncoupled_length_too_long": "error",
 74 |         "drill_out_of_range": "error",
 75 |         "duplicate_footprints": "warning",
 76 |         "extra_footprint": "warning",
 77 |         "footprint": "error",
 78 |         "footprint_symbol_mismatch": "warning",
 79 |         "footprint_type_mismatch": "ignore",
 80 |         "hole_clearance": "error",
 81 |         "hole_near_hole": "error",
 82 |         "invalid_outline": "error",
 83 |         "isolated_copper": "warning",
 84 |         "item_on_disabled_layer": "error",
 85 |         "items_not_allowed": "error",
 86 |         "length_out_of_range": "error",
 87 |         "lib_footprint_issues": "warning",
 88 |         "lib_footprint_mismatch": "warning",
 89 |         "malformed_courtyard": "error",
 90 |         "microvia_drill_out_of_range": "error",
 91 |         "missing_courtyard": "ignore",
 92 |         "missing_footprint": "warning",
 93 |         "net_conflict": "warning",
 94 |         "npth_inside_courtyard": "ignore",
 95 |         "padstack": "warning",
 96 |         "pth_inside_courtyard": "ignore",
 97 |         "shorting_items": "error",
 98 |         "silk_edge_clearance": "warning",
 99 |         "silk_over_copper": "warning",
100 |         "silk_overlap": "warning",
101 |         "skew_out_of_range": "error",
102 |         "solder_mask_bridge": "error",
103 |         "starved_thermal": "error",
104 |         "text_height": "warning",
105 |         "text_thickness": "warning",
106 |         "through_hole_pad_without_hole": "error",
107 |         "too_many_vias": "error",
108 |         "track_dangling": "warning",
109 |         "track_width": "error",
110 |         "tracks_crossing": "error",
111 |         "unconnected_items": "error",
112 |         "unresolved_variable": "error",
113 |         "via_dangling": "warning",
114 |         "zones_intersect": "error"
115 |       },
116 |       "rules": {
117 |         "max_error": 0.005,
118 |         "min_clearance": 0.0,
119 |         "min_connection": 0.0,
120 |         "min_copper_edge_clearance": 0.0,
121 |         "min_hole_clearance": 0.25,
122 |         "min_hole_to_hole": 0.25,
123 |         "min_microvia_diameter": 0.2,
124 |         "min_microvia_drill": 0.1,
125 |         "min_resolved_spokes": 2,
126 |         "min_silk_clearance": 0.0,
127 |         "min_text_height": 0.8,
128 |         "min_text_thickness": 0.08,
129 |         "min_through_hole_diameter": 0.2,
130 |         "min_track_width": 0.0,
131 |         "min_via_annular_width": 0.1,
132 |         "min_via_diameter": 0.4,
133 |         "solder_mask_clearance": 0.0,
134 |         "solder_mask_min_width": 0.0,
135 |         "solder_mask_to_copper_clearance": 0.0,
136 |         "use_height_for_length_calcs": true
137 |       },
138 |       "teardrop_options": [
139 |         {
140 |           "td_onpadsmd": true,
141 |           "td_onroundshapesonly": false,
142 |           "td_ontrackend": false,
143 |           "td_onviapad": true
144 |         }
145 |       ],
146 |       "teardrop_parameters": [
147 |         {
148 |           "td_allow_use_two_tracks": true,
149 |           "td_curve_segcount": 0,
150 |           "td_height_ratio": 1.0,
151 |           "td_length_ratio": 0.5,
152 |           "td_maxheight": 2.0,
153 |           "td_maxlen": 1.0,
154 |           "td_on_pad_in_zone": false,
155 |           "td_target_name": "td_round_shape",
156 |           "td_width_to_size_filter_ratio": 0.9
157 |         },
158 |         {
159 |           "td_allow_use_two_tracks": true,
160 |           "td_curve_segcount": 0,
161 |           "td_height_ratio": 1.0,
162 |           "td_length_ratio": 0.5,
163 |           "td_maxheight": 2.0,
164 |           "td_maxlen": 1.0,
165 |           "td_on_pad_in_zone": false,
166 |           "td_target_name": "td_rect_shape",
167 |           "td_width_to_size_filter_ratio": 0.9
168 |         },
169 |         {
170 |           "td_allow_use_two_tracks": true,
171 |           "td_curve_segcount": 0,
172 |           "td_height_ratio": 1.0,
173 |           "td_length_ratio": 0.5,
174 |           "td_maxheight": 2.0,
175 |           "td_maxlen": 1.0,
176 |           "td_on_pad_in_zone": false,
177 |           "td_target_name": "td_track_end",
178 |           "td_width_to_size_filter_ratio": 0.9
179 |         }
180 |       ],
181 |       "track_widths": [
182 |         0.0
183 |       ],
184 |       "tuning_pattern_settings": {
185 |         "diff_pair_defaults": {
186 |           "corner_radius_percentage": 80,
187 |           "corner_style": 1,
188 |           "max_amplitude": 1.0,
189 |           "min_amplitude": 0.2,
190 |           "single_sided": false,
191 |           "spacing": 1.0
192 |         },
193 |         "diff_pair_skew_defaults": {
194 |           "corner_radius_percentage": 80,
195 |           "corner_style": 1,
196 |           "max_amplitude": 1.0,
197 |           "min_amplitude": 0.2,
198 |           "single_sided": false,
199 |           "spacing": 0.6
200 |         },
201 |         "single_track_defaults": {
202 |           "corner_radius_percentage": 80,
203 |           "corner_style": 1,
204 |           "max_amplitude": 1.0,
205 |           "min_amplitude": 0.2,
206 |           "single_sided": false,
207 |           "spacing": 0.6
208 |         }
209 |       },
210 |       "via_dimensions": [
211 |         {
212 |           "diameter": 0.0,
213 |           "drill": 0.0
214 |         }
215 |       ],
216 |       "zones_allow_external_fillets": false
217 |     },
218 |     "ipc2581": {
219 |       "dist": "",
220 |       "distpn": "",
221 |       "internal_id": "",
222 |       "mfg": "",
223 |       "mpn": ""
224 |     },
225 |     "layer_presets": [],
226 |     "viewports": []
227 |   },
228 |   "boards": [],
229 |   "cvpcb": {
230 |     "equivalence_files": []
231 |   },
232 |   "erc": {
233 |     "erc_exclusions": [],
234 |     "meta": {
235 |       "version": 0
236 |     },
237 |     "pin_map": [
238 |       [
239 |         0,
240 |         0,
241 |         0,
242 |         0,
243 |         0,
244 |         0,
245 |         1,
246 |         0,
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248 |         0,
249 |         0,
250 |         2
251 |       ],
252 |       [
253 |         0,
254 |         2,
255 |         0,
256 |         1,
257 |         0,
258 |         0,
259 |         1,
260 |         0,
261 |         2,
262 |         2,
263 |         2,
264 |         2
265 |       ],
266 |       [
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268 |         0,
269 |         0,
270 |         0,
271 |         0,
272 |         0,
273 |         1,
274 |         0,
275 |         1,
276 |         0,
277 |         1,
278 |         2
279 |       ],
280 |       [
281 |         0,
282 |         1,
283 |         0,
284 |         0,
285 |         0,
286 |         0,
287 |         1,
288 |         1,
289 |         2,
290 |         1,
291 |         1,
292 |         2
293 |       ],
294 |       [
295 |         0,
296 |         0,
297 |         0,
298 |         0,
299 |         0,
300 |         0,
301 |         1,
302 |         0,
303 |         0,
304 |         0,
305 |         0,
306 |         2
307 |       ],
308 |       [
309 |         0,
310 |         0,
311 |         0,
312 |         0,
313 |         0,
314 |         0,
315 |         0,
316 |         0,
317 |         0,
318 |         0,
319 |         0,
320 |         2
321 |       ],
322 |       [
323 |         1,
324 |         1,
325 |         1,
326 |         1,
327 |         1,
328 |         0,
329 |         1,
330 |         1,
331 |         1,
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333 |         1,
334 |         2
335 |       ],
336 |       [
337 |         0,
338 |         0,
339 |         0,
340 |         1,
341 |         0,
342 |         0,
343 |         1,
344 |         0,
345 |         0,
346 |         0,
347 |         0,
348 |         2
349 |       ],
350 |       [
351 |         0,
352 |         2,
353 |         1,
354 |         2,
355 |         0,
356 |         0,
357 |         1,
358 |         0,
359 |         2,
360 |         2,
361 |         2,
362 |         2
363 |       ],
364 |       [
365 |         0,
366 |         2,
367 |         0,
368 |         1,
369 |         0,
370 |         0,
371 |         1,
372 |         0,
373 |         2,
374 |         0,
375 |         0,
376 |         2
377 |       ],
378 |       [
379 |         0,
380 |         2,
381 |         1,
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384 |         0,
385 |         1,
386 |         0,
387 |         2,
388 |         0,
389 |         0,
390 |         2
391 |       ],
392 |       [
393 |         2,
394 |         2,
395 |         2,
396 |         2,
397 |         2,
398 |         2,
399 |         2,
400 |         2,
401 |         2,
402 |         2,
403 |         2,
404 |         2
405 |       ]
406 |     ],
407 |     "rule_severities": {
408 |       "bus_definition_conflict": "error",
409 |       "bus_entry_needed": "error",
410 |       "bus_to_bus_conflict": "error",
411 |       "bus_to_net_conflict": "error",
412 |       "conflicting_netclasses": "error",
413 |       "different_unit_footprint": "error",
414 |       "different_unit_net": "error",
415 |       "duplicate_reference": "error",
416 |       "duplicate_sheet_names": "error",
417 |       "endpoint_off_grid": "warning",
418 |       "extra_units": "error",
419 |       "global_label_dangling": "warning",
420 |       "hier_label_mismatch": "error",
421 |       "label_dangling": "error",
422 |       "lib_symbol_issues": "warning",
423 |       "missing_bidi_pin": "warning",
424 |       "missing_input_pin": "warning",
425 |       "missing_power_pin": "error",
426 |       "missing_unit": "warning",
427 |       "multiple_net_names": "warning",
428 |       "net_not_bus_member": "warning",
429 |       "no_connect_connected": "warning",
430 |       "no_connect_dangling": "warning",
431 |       "pin_not_connected": "error",
432 |       "pin_not_driven": "error",
433 |       "pin_to_pin": "warning",
434 |       "power_pin_not_driven": "error",
435 |       "similar_labels": "warning",
436 |       "simulation_model_issue": "ignore",
437 |       "unannotated": "error",
438 |       "unit_value_mismatch": "error",
439 |       "unresolved_variable": "error",
440 |       "wire_dangling": "error"
441 |     }
442 |   },
443 |   "libraries": {
444 |     "pinned_footprint_libs": [],
445 |     "pinned_symbol_libs": []
446 |   },
447 |   "meta": {
448 |     "filename": "ch552g-dev-board.kicad_pro",
449 |     "version": 1
450 |   },
451 |   "net_settings": {
452 |     "classes": [
453 |       {
454 |         "bus_width": 12,
455 |         "clearance": 0.16,
456 |         "diff_pair_gap": 0.25,
457 |         "diff_pair_via_gap": 0.25,
458 |         "diff_pair_width": 0.2,
459 |         "line_style": 0,
460 |         "microvia_diameter": 0.3,
461 |         "microvia_drill": 0.1,
462 |         "name": "Default",
463 |         "pcb_color": "rgba(0, 0, 0, 0.000)",
464 |         "schematic_color": "rgba(0, 0, 0, 0.000)",
465 |         "track_width": 0.15,
466 |         "via_diameter": 0.4,
467 |         "via_drill": 0.2,
468 |         "wire_width": 6
469 |       }
470 |     ],
471 |     "meta": {
472 |       "version": 3
473 |     },
474 |     "net_colors": null,
475 |     "netclass_assignments": null,
476 |     "netclass_patterns": []
477 |   },
478 |   "pcbnew": {
479 |     "last_paths": {
480 |       "gencad": "",
481 |       "idf": "",
482 |       "netlist": "",
483 |       "plot": "output/",
484 |       "pos_files": "",
485 |       "specctra_dsn": "",
486 |       "step": "",
487 |       "svg": "",
488 |       "vrml": ""
489 |     },
490 |     "page_layout_descr_file": ""
491 |   },
492 |   "schematic": {
493 |     "annotate_start_num": 0,
494 |     "bom_fmt_presets": [],
495 |     "bom_fmt_settings": {
496 |       "field_delimiter": ",",
497 |       "keep_line_breaks": false,
498 |       "keep_tabs": false,
499 |       "name": "CSV",
500 |       "ref_delimiter": ",",
501 |       "ref_range_delimiter": "",
502 |       "string_delimiter": "\""
503 |     },
504 |     "bom_presets": [],
505 |     "bom_settings": {
506 |       "exclude_dnp": false,
507 |       "fields_ordered": [
508 |         {
509 |           "group_by": false,
510 |           "label": "Reference",
511 |           "name": "Reference",
512 |           "show": true
513 |         },
514 |         {
515 |           "group_by": true,
516 |           "label": "Value",
517 |           "name": "Value",
518 |           "show": true
519 |         },
520 |         {
521 |           "group_by": false,
522 |           "label": "Datasheet",
523 |           "name": "Datasheet",
524 |           "show": true
525 |         },
526 |         {
527 |           "group_by": false,
528 |           "label": "Footprint",
529 |           "name": "Footprint",
530 |           "show": true
531 |         },
532 |         {
533 |           "group_by": false,
534 |           "label": "Qty",
535 |           "name": "${QUANTITY}",
536 |           "show": true
537 |         },
538 |         {
539 |           "group_by": true,
540 |           "label": "DNP",
541 |           "name": "${DNP}",
542 |           "show": true
543 |         }
544 |       ],
545 |       "filter_string": "",
546 |       "group_symbols": true,
547 |       "name": "Grouped By Value",
548 |       "sort_asc": true,
549 |       "sort_field": "Reference"
550 |     },
551 |     "connection_grid_size": 50.0,
552 |     "drawing": {
553 |       "dashed_lines_dash_length_ratio": 12.0,
554 |       "dashed_lines_gap_length_ratio": 3.0,
555 |       "default_line_thickness": 6.0,
556 |       "default_text_size": 50.0,
557 |       "field_names": [],
558 |       "intersheets_ref_own_page": false,
559 |       "intersheets_ref_prefix": "",
560 |       "intersheets_ref_short": false,
561 |       "intersheets_ref_show": false,
562 |       "intersheets_ref_suffix": "",
563 |       "junction_size_choice": 3,
564 |       "label_size_ratio": 0.375,
565 |       "operating_point_overlay_i_precision": 3,
566 |       "operating_point_overlay_i_range": "~A",
567 |       "operating_point_overlay_v_precision": 3,
568 |       "operating_point_overlay_v_range": "~V",
569 |       "overbar_offset_ratio": 1.23,
570 |       "pin_symbol_size": 25.0,
571 |       "text_offset_ratio": 0.15
572 |     },
573 |     "legacy_lib_dir": "",
574 |     "legacy_lib_list": [],
575 |     "meta": {
576 |       "version": 1
577 |     },
578 |     "net_format_name": "",
579 |     "page_layout_descr_file": "",
580 |     "plot_directory": "",
581 |     "spice_current_sheet_as_root": false,
582 |     "spice_external_command": "spice \"%I\"",
583 |     "spice_model_current_sheet_as_root": true,
584 |     "spice_save_all_currents": false,
585 |     "spice_save_all_dissipations": false,
586 |     "spice_save_all_voltages": false,
587 |     "subpart_first_id": 65,
588 |     "subpart_id_separator": 0
589 |   },
590 |   "sheets": [
591 |     [
592 |       "b142e766-4f61-468f-a830-50b62dfa0286",
593 |       "Root"
594 |     ]
595 |   ],
596 |   "text_variables": {}
597 | }
598 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU GENERAL PUBLIC LICENSE
  2 |                        Version 3, 29 June 2007
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462 | 
463 |   You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License.  For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 | 
471 |   11. Patents.
472 | 
473 |   A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based.  The
475 | work thus licensed is called the contributor's "contributor version".
476 | 
477 |   A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version.  For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 | 
487 |   Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 | 
492 |   In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement).  To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 | 
499 |   If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients.  "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 | 
513 |   If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 | 
521 |   A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License.  You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 | 
536 |   Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 | 
540 |   12. No Surrender of Others' Freedom.
541 | 
542 |   If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License.  If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all.  For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 | 
552 |   13. Use with the GNU Affero General Public License.
553 | 
554 |   Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work.  The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 | 
563 |   14. Revised Versions of this License.
564 | 
565 |   The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time.  Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 | 
570 |   Each version is given a distinguishing version number.  If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation.  If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 | 
579 |   If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 | 
584 |   Later license versions may give you additional or different
585 | permissions.  However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 | 
589 |   15. Disclaimer of Warranty.
590 | 
591 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 | 
600 |   16. Limitation of Liability.
601 | 
602 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 | 
612 |   17. Interpretation of Sections 15 and 16.
613 | 
614 |   If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 | 
621 |                      END OF TERMS AND CONDITIONS
622 | 
623 |             How to Apply These Terms to Your New Programs
624 | 
625 |   If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 | 
629 |   To do so, attach the following notices to the program.  It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 | 
634 |     <one line to give the program's name and a brief idea of what it does.>
635 |     Copyright (C) <year>  <name of author>
636 | 
637 |     This program is free software: you can redistribute it and/or modify
638 |     it under the terms of the GNU General Public License as published by
639 |     the Free Software Foundation, either version 3 of the License, or
640 |     (at your option) any later version.
641 | 
642 |     This program is distributed in the hope that it will be useful,
643 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
644 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645 |     GNU General Public License for more details.
646 | 
647 |     You should have received a copy of the GNU General Public License
648 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
649 | 
650 | Also add information on how to contact you by electronic and paper mail.
651 | 
652 |   If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 | 
655 |     <program>  Copyright (C) <year>  <name of author>
656 |     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 |     This is free software, and you are welcome to redistribute it
658 |     under certain conditions; type `show c' for details.
659 | 
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License.  Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 | 
664 |   You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | <https://www.gnu.org/licenses/>.
668 | 
669 |   The GNU General Public License does not permit incorporating your program
670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library.  If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License.  But first, please read
674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 | 


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2998 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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3130 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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3132 | 					(unit 1)
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3400 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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3472 | 	)
3473 | 	(symbol
3474 | 		(lib_id "power:VCC")
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3525 | 			)
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3531 | 			(project "ch552g-dev-board"
3532 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
3533 | 					(reference "#PWR04")
3534 | 					(unit 1)
3535 | 				)
3536 | 			)
3537 | 		)
3538 | 	)
3539 | 	(symbol
3540 | 		(lib_id "power:VCC")
3541 | 		(at 88.9 69.85 0)
3542 | 		(unit 1)
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3544 | 		(in_bom yes)
3545 | 		(on_board yes)
3546 | 		(dnp no)
3547 | 		(fields_autoplaced yes)
3548 | 		(uuid "aa21921c-0720-4786-867e-9bdce317b551")
3549 | 		(property "Reference" "#PWR06"
3550 | 			(at 88.9 73.66 0)
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3555 | 				(hide yes)
3556 | 			)
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3581 | 				(hide yes)
3582 | 			)
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3584 | 		(property "Description" "Power symbol creates a global label with name \"VCC\""
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3598 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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3600 | 					(unit 1)
3601 | 				)
3602 | 			)
3603 | 		)
3604 | 	)
3605 | 	(symbol
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3608 | 		(unit 1)
3609 | 		(exclude_from_sim no)
3610 | 		(in_bom yes)
3611 | 		(on_board yes)
3612 | 		(dnp no)
3613 | 		(fields_autoplaced yes)
3614 | 		(uuid "b90e497e-7e02-45c1-aa2a-d5307958064c")
3615 | 		(property "Reference" "#PWR010"
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3621 | 				(hide yes)
3622 | 			)
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3647 | 				(hide yes)
3648 | 			)
3649 | 		)
3650 | 		(property "Description" "Power symbol creates a global label with name \"VCC\""
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3657 | 			)
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3659 | 		(pin "1"
3660 | 			(uuid "94683a93-11d6-400f-898a-505392832a22")
3661 | 		)
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3663 | 			(project "ch552g-dev-board"
3664 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
3665 | 					(reference "#PWR010")
3666 | 					(unit 1)
3667 | 				)
3668 | 			)
3669 | 		)
3670 | 	)
3671 | 	(symbol
3672 | 		(lib_id "power:VCC")
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3674 | 		(unit 1)
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3677 | 		(on_board yes)
3678 | 		(dnp no)
3679 | 		(fields_autoplaced yes)
3680 | 		(uuid "cd35712c-8a58-4a6b-8fd8-741a8cb409d8")
3681 | 		(property "Reference" "#PWR08"
3682 | 			(at 171.45 22.86 0)
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3687 | 				(hide yes)
3688 | 			)
3689 | 		)
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3713 | 				(hide yes)
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3716 | 		(property "Description" "Power symbol creates a global label with name \"VCC\""
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3722 | 				(hide yes)
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3725 | 		(pin "1"
3726 | 			(uuid "213f933d-8dfa-4984-97e0-14aff8a8437d")
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3729 | 			(project "ch552g-dev-board"
3730 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
3731 | 					(reference "#PWR08")
3732 | 					(unit 1)
3733 | 				)
3734 | 			)
3735 | 		)
3736 | 	)
3737 | 	(symbol
3738 | 		(lib_id "power:VCC")
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3740 | 		(unit 1)
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3743 | 		(on_board yes)
3744 | 		(dnp no)
3745 | 		(fields_autoplaced yes)
3746 | 		(uuid "d901c357-21e3-4d71-be0d-c2c94aaaed7c")
3747 | 		(property "Reference" "#PWR07"
3748 | 			(at 152.4 22.86 0)
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3753 | 				(hide yes)
3754 | 			)
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3791 | 		(pin "1"
3792 | 			(uuid "e550f28c-20a7-446b-9258-736ae557c96a")
3793 | 		)
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3796 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
3797 | 					(reference "#PWR07")
3798 | 					(unit 1)
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3800 | 			)
3801 | 		)
3802 | 	)
3803 | 	(symbol
3804 | 		(lib_id "power:Earth")
3805 | 		(at 120.65 38.1 0)
3806 | 		(unit 1)
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3809 | 		(on_board yes)
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3811 | 		(fields_autoplaced yes)
3812 | 		(uuid "dcfa9344-afb0-428c-9230-fb5230e8ec36")
3813 | 		(property "Reference" "#PWR05"
3814 | 			(at 120.65 44.45 0)
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3819 | 				(hide yes)
3820 | 			)
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3848 | 		(property "Description" "Power symbol creates a global label with name \"Earth\""
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3857 | 		(pin "1"
3858 | 			(uuid "6da063c7-380e-4ea6-b557-32dd2cc4c5da")
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3861 | 			(project "ch552g-dev-board"
3862 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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3865 | 				)
3866 | 			)
3867 | 		)
3868 | 	)
3869 | 	(symbol
3870 | 		(lib_id "Device:C")
3871 | 		(at 88.9 76.2 0)
3872 | 		(unit 1)
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3875 | 		(on_board yes)
3876 | 		(dnp no)
3877 | 		(fields_autoplaced yes)
3878 | 		(uuid "e1050952-1768-4ecb-9e12-d91da8947247")
3879 | 		(property "Reference" "C2"
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3895 | 			)
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3897 | 		(property "Footprint" "Capacitor_SMD:C_0603_1608Metric"
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3924 | 		(pin "2"
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3934 | 					(unit 1)
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3936 | 			)
3937 | 			(project "cartridge-only"
3938 | 				(path "/b7b5c1c6-12c5-4013-8f4b-afe7e2029694"
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3946 | 		(lib_id "Device:C")
3947 | 		(at 76.2 76.2 0)
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3953 | 		(fields_autoplaced yes)
3954 | 		(uuid "eb325655-5c18-4acc-80b4-fb1b497e57e8")
3955 | 		(property "Reference" "C1"
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4008 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
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4014 | 				(path "/b7b5c1c6-12c5-4013-8f4b-afe7e2029694"
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4018 | 			)
4019 | 		)
4020 | 	)
4021 | 	(symbol
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4023 | 		(at 172.72 74.93 0)
4024 | 		(unit 1)
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4026 | 		(in_bom yes)
4027 | 		(on_board yes)
4028 | 		(dnp no)
4029 | 		(fields_autoplaced yes)
4030 | 		(uuid "fc37522b-7a17-4d6f-90c1-6d3ad1032bb1")
4031 | 		(property "Reference" "J_P1"
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4047 | 		(property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical"
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4074 | 		(pin "3"
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4077 | 		(pin "4"
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4086 | 		(pin "2"
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4091 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
4092 | 					(reference "J_P1")
4093 | 					(unit 1)
4094 | 				)
4095 | 			)
4096 | 		)
4097 | 	)
4098 | 	(symbol
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4101 | 		(unit 1)
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4104 | 		(on_board yes)
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4107 | 		(uuid "fe0b54c6-37de-4030-a96d-e5be91f1b2a9")
4108 | 		(property "Reference" "#PWR011"
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4114 | 				(hide yes)
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4123 | 			)
4124 | 		)
4125 | 		(property "Footprint" ""
4126 | 			(at 165.1 85.09 0)
4127 | 			(effects
4128 | 				(font
4129 | 					(size 1.27 1.27)
4130 | 				)
4131 | 				(hide yes)
4132 | 			)
4133 | 		)
4134 | 		(property "Datasheet" "~"
4135 | 			(at 165.1 85.09 0)
4136 | 			(effects
4137 | 				(font
4138 | 					(size 1.27 1.27)
4139 | 				)
4140 | 				(hide yes)
4141 | 			)
4142 | 		)
4143 | 		(property "Description" "Power symbol creates a global label with name \"Earth\""
4144 | 			(at 165.1 85.09 0)
4145 | 			(effects
4146 | 				(font
4147 | 					(size 1.27 1.27)
4148 | 				)
4149 | 				(hide yes)
4150 | 			)
4151 | 		)
4152 | 		(pin "1"
4153 | 			(uuid "fc011001-c7a6-43ed-a633-2b20cc988793")
4154 | 		)
4155 | 		(instances
4156 | 			(project "ch552g-dev-board"
4157 | 				(path "/b142e766-4f61-468f-a830-50b62dfa0286"
4158 | 					(reference "#PWR011")
4159 | 					(unit 1)
4160 | 				)
4161 | 			)
4162 | 		)
4163 | 	)
4164 | 	(sheet_instances
4165 | 		(path "/"
4166 | 			(page "1")
4167 | 		)
4168 | 	)
4169 | )


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