├── .gitignore
├── LICENSE
├── Makefile
├── bigchars.JPG
├── font.c
├── font.h
├── i2c.c
├── i2c.h
├── lcd.c
├── lcd.h
├── main.c
├── oled.jpg
└── readme.md
/.gitignore:
--------------------------------------------------------------------------------
1 | # Prerequisites
2 | *.d
3 |
4 | # Object files
5 | *.o
6 | *.ko
7 | *.obj
8 | *.elf
9 |
10 | # Linker output
11 | *.ilk
12 | *.map
13 | *.exp
14 |
15 | # Precompiled Headers
16 | *.gch
17 | *.pch
18 |
19 | # Libraries
20 | *.lib
21 | *.a
22 | *.la
23 | *.lo
24 |
25 | # Shared objects (inc. Windows DLLs)
26 | *.dll
27 | *.so
28 | *.so.*
29 | *.dylib
30 |
31 | # Executables
32 | *.exe
33 | *.out
34 | *.app
35 | *.i*86
36 | *.x86_64
37 | *.hex
38 |
39 | # Debug files
40 | *.dSYM/
41 | *.su
42 | *.idb
43 | *.pdb
44 |
45 | # Kernel Module Compile Results
46 | *.mod*
47 | *.cmd
48 | .tmp_versions/
49 | modules.order
50 | Module.symvers
51 | Mkfile.old
52 | dkms.conf
53 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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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 |
635 | Copyright (C)
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 .
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 | Copyright (C)
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 | .
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 | .
675 |
--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
1 | # Hey Emacs, this is a -*- makefile -*-
2 | #
3 | # WinAVR makefile written by Eric B. Weddington, Jˆrg Wunsch, et al.
4 | # Released to the Public Domain
5 | # Please read the make user manual!
6 | #
7 | # Additional material for this makefile was submitted by:
8 | # Tim Henigan
9 | # Peter Fleury
10 | # Reiner Patommel
11 | # Sander Pool
12 | # Frederik Rouleau
13 | # Markus Pfaff
14 | #
15 | # On command line:
16 | #
17 | # make all = Make software.
18 | #
19 | # make clean = Clean out built project files.
20 | #
21 | # make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
22 | #
23 | # make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
24 | # 4.07 or greater).
25 | #
26 | # make program = Download the hex file to the device, using avrdude. Please
27 | # customize the avrdude settings below first!
28 | #
29 | # make filename.s = Just compile filename.c into the assembler code only
30 | #
31 | # To rebuild project do "make clean" then "make all".
32 | #
33 |
34 | # mth 2004/09
35 | # Differences from WinAVR 20040720 sample:
36 | # - DEPFLAGS according to Eric Weddingtion's fix (avrfreaks/gcc-forum)
37 | # - F_CPU Define in CFLAGS and AFLAGS
38 |
39 |
40 | # MCU name
41 | MCU = atmega328p
42 |
43 | # Main Oscillator Frequency
44 | # This is only used to define F_CPU in all assembler and c-sources.
45 | F_CPU = 16000000UL
46 |
47 | # Output format. (can be srec, ihex, binary)
48 | FORMAT = ihex
49 |
50 | # Target file name (without extension).
51 | TARGET = main
52 |
53 |
54 | # List C source files here. (C dependencies are automatically generated.)
55 | SRC = $(wildcard *.c)
56 |
57 | # List Assembler source files here.
58 | # Make them always end in a capital .S. Files ending in a lowercase .s
59 | # will not be considered source files but generated files (assembler
60 | # output from the compiler), and will be deleted upon "make clean"!
61 | # Even though the DOS/Win* filesystem matches both .s and .S the same,
62 | # it will preserve the spelling of the filenames, and gcc itself does
63 | # care about how the name is spelled on its command-line.
64 | ASRC =
65 |
66 |
67 |
68 | # Optimization level, can be [0, 1, 2, 3, s].
69 | # 0 = turn off optimization. s = optimize for size.
70 | # (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
71 | OPT = s
72 |
73 | # Debugging format.
74 | # Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
75 | # AVR (extended) COFF requires stabs, plus an avr-objcopy run.
76 | #DEBUG = stabs
77 | DEBUG = dwarf-2
78 |
79 | # List any extra directories to look for include files here.
80 | # Each directory must be seperated by a space.
81 | EXTRAINCDIRS =
82 |
83 |
84 | # Compiler flag to set the C Standard level.
85 | # c89 - "ANSI" C
86 | # gnu89 - c89 plus GCC extensions
87 | # c99 - ISO C99 standard (not yet fully implemented)
88 | # gnu99 - c99 plus GCC extensions
89 | CSTANDARD = -std=gnu99
90 |
91 | # Place -D or -U options here
92 | CDEFS =
93 |
94 | # Place -I options here
95 | CINCS =
96 |
97 |
98 | # Compiler flags.
99 | # -g*: generate debugging information
100 | # -O*: optimization level
101 | # -f...: tuning, see GCC manual and avr-libc documentation
102 | # -Wall...: warning level
103 | # -Wa,...: tell GCC to pass this to the assembler.
104 | # -adhlns...: create assembler listing
105 | CFLAGS = -g$(DEBUG)
106 | CFLAGS += $(CDEFS) $(CINCS)
107 | CFLAGS += -O$(OPT)
108 | CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
109 | CFLAGS += -Wall -Wstrict-prototypes
110 | CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
111 | CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
112 | CFLAGS += $(CSTANDARD)
113 | CFLAGS += -DF_CPU=$(F_CPU)
114 | #CFLAGS += -finput-charset=utf-8 -fexec-charset=iso-8859-15
115 |
116 |
117 |
118 | # Assembler flags.
119 | # -Wa,...: tell GCC to pass this to the assembler.
120 | # -ahlms: create listing
121 | # -gstabs: have the assembler create line number information; note that
122 | # for use in COFF files, additional information about filenames
123 | # and function names needs to be present in the assembler source
124 | # files -- see avr-libc docs [FIXME: not yet described there]
125 | ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
126 | ASFLAGS += -DF_CPU=$(F_CPU)
127 |
128 |
129 | #Additional libraries.
130 |
131 | # Minimalistic printf version
132 | PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
133 |
134 | # Floating point printf version (requires MATH_LIB = -lm below)
135 | PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
136 |
137 | PRINTF_LIB =
138 |
139 | # Minimalistic scanf version
140 | SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
141 |
142 | # Floating point + %[ scanf version (requires MATH_LIB = -lm below)
143 | SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
144 |
145 | SCANF_LIB =
146 |
147 | MATH_LIB = -lm
148 |
149 | # External memory options
150 |
151 | # 64 KB of external RAM, starting after internal RAM (ATmega128!),
152 | # used for variables (.data/.bss) and heap (malloc()).
153 | #EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
154 |
155 | # 64 KB of external RAM, starting after internal RAM (ATmega128!),
156 | # only used for heap (malloc()).
157 | #EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
158 |
159 | EXTMEMOPTS =
160 |
161 | # Linker flags.
162 | # -Wl,...: tell GCC to pass this to linker.
163 | # -Map: create map file
164 | # --cref: add cross reference to map file
165 | LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
166 | LDFLAGS += $(EXTMEMOPTS)
167 | LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
168 |
169 |
170 |
171 |
172 | # Programming support using avrdude. Settings and variables.
173 |
174 | # Programming hardware: alf avr910 avrisp bascom bsd
175 | # dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
176 | #
177 | # Type: avrdude -c ?
178 | # to get a full listing.
179 | #
180 | AVRDUDE_PROGRAMMER = avrispmkii
181 |
182 | # com1 = serial port. Use lpt1 to connect to parallel port.
183 | AVRDUDE_PORT = usb # programmer connected to serial device
184 |
185 | AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
186 | AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
187 | AVRDUDE_WRITE_FUSES = -U lfuse:w:0xFF:m -U hfuse:w:0xdf:m
188 | #-U efuse:w:0xff:m
189 | AVRDUDE_WRITE_LOCKS = -U lock:w:0f:m
190 |
191 |
192 | # Uncomment the following if you want avrdude's erase cycle counter.
193 | # Note that this counter needs to be initialized first using -Yn,
194 | # see avrdude manual.
195 | #AVRDUDE_ERASE_COUNTER = -y
196 |
197 | # Uncomment the following if you do /not/ wish a verification to be
198 | # performed after programming the device.
199 | #AVRDUDE_NO_VERIFY = -V
200 |
201 | # Increase verbosity level. Please use this when submitting bug
202 | # reports about avrdude. See
203 | # to submit bug reports.
204 | #AVRDUDE_VERBOSE = -v -v
205 |
206 | AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
207 | AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
208 | AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
209 | AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
210 | AVRDUDE_FLAGS += -b 19200
211 |
212 |
213 |
214 | # ---------------------------------------------------------------------------
215 |
216 | # Define directories, if needed.
217 | # DIRAVR = c:/winavr/ #for Windows
218 | DIRAVR = /usr/local/avr/ #for Mac OS (crossavr)
219 | DIRAVRBIN = $(DIRAVR)/bin
220 | DIRAVRUTILS = $(DIRAVR)/utils/bin
221 | DIRINC = .
222 | DIRLIB = $(DIRAVR)/avr/lib
223 |
224 |
225 | # Define programs and commands.
226 | SHELL = sh
227 | CC = avr-gcc
228 | OBJCOPY = avr-objcopy
229 | OBJDUMP = avr-objdump
230 | SIZE = avr-size
231 | NM = avr-nm
232 | AVRDUDE = avrdude
233 | REMOVE = rm -f
234 | COPY = cp
235 |
236 |
237 |
238 |
239 | # Define Messages
240 | # English
241 | MSG_ERRORS_NONE = Errors: none
242 | MSG_BEGIN = -------- begin --------
243 | MSG_END = -------- end --------
244 | MSG_SIZE_BEFORE = Size before:
245 | MSG_SIZE_AFTER = Size after:
246 | MSG_COFF = Converting to AVR COFF:
247 | MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
248 | MSG_FLASH = Creating load file for Flash:
249 | MSG_EEPROM = Creating load file for EEPROM:
250 | MSG_EXTENDED_LISTING = Creating Extended Listing:
251 | MSG_SYMBOL_TABLE = Creating Symbol Table:
252 | MSG_LINKING = Linking:
253 | MSG_COMPILING = Compiling:
254 | MSG_ASSEMBLING = Assembling:
255 | MSG_CLEANING = Cleaning project:
256 |
257 |
258 |
259 |
260 | # Define all object files.
261 | OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
262 |
263 | # Define all listing files.
264 | LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
265 |
266 |
267 | # Compiler flags to generate dependency files.
268 | ### GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d
269 | GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
270 |
271 | # Combine all necessary flags and optional flags.
272 | # Add target processor to flags.
273 | ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
274 | ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
275 |
276 |
277 |
278 |
279 |
280 | # Default target.
281 | all: begin gccversion sizebefore build sizeafter finished end
282 |
283 | build: elf hex eep lss sym
284 |
285 | elf: $(TARGET).elf
286 | hex: $(TARGET).hex
287 | eep: $(TARGET).eep
288 | lss: $(TARGET).lss
289 | sym: $(TARGET).sym
290 |
291 |
292 |
293 | # Eye candy.
294 | # AVR Studio 3.x does not check make's exit code but relies on
295 | # the following magic strings to be generated by the compile job.
296 | begin:
297 | @echo
298 | @echo $(MSG_BEGIN)
299 |
300 | finished:
301 | @echo $(MSG_ERRORS_NONE)
302 |
303 | end:
304 | @echo $(MSG_END)
305 | @echo
306 |
307 |
308 | # Display size of file.
309 | HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
310 | ELFSIZE = $(SIZE) -A $(TARGET).elf
311 | sizebefore:
312 | @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
313 |
314 | sizeafter:
315 | @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
316 |
317 |
318 |
319 | # Display compiler version information.
320 | gccversion :
321 | @$(CC) --version
322 |
323 |
324 |
325 | # Program the device.
326 | program: $(TARGET).hex $(TARGET).eep
327 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) $(AVRDUDE_WRITE_FUSES)
328 |
329 | # Write only flash
330 | flash: $(TARGET).hex
331 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
332 |
333 | # Write only eeprom
334 | eeprom: $(TARGET).eep
335 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_EEPROM)
336 |
337 | # Write fuses
338 | fuse:
339 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FUSES)
340 |
341 | # Write locks
342 | lock:
343 | $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_LOCKS)
344 |
345 | # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
346 | COFFCONVERT=$(OBJCOPY) --debugging \
347 | --change-section-address .data-0x800000 \
348 | --change-section-address .bss-0x800000 \
349 | --change-section-address .noinit-0x800000 \
350 | --change-section-address .eeprom-0x810000
351 |
352 |
353 | coff: $(TARGET).elf
354 | @echo
355 | @echo $(MSG_COFF) $(TARGET).cof
356 | $(COFFCONVERT) -O coff-avr $< $(TARGET).cof
357 |
358 |
359 | extcoff: $(TARGET).elf
360 | @echo
361 | @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
362 | $(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
363 |
364 |
365 |
366 | # Create final output files (.hex, .eep) from ELF output file.
367 | %.hex: %.elf
368 | @echo
369 | @echo $(MSG_FLASH) $@
370 | $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
371 |
372 | %.eep: %.elf
373 | @echo
374 | @echo $(MSG_EEPROM) $@
375 | -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
376 | --change-section-lma .eeprom=0 -O $(FORMAT) $< $@
377 |
378 | # Create extended listing file from ELF output file.
379 | %.lss: %.elf
380 | @echo
381 | @echo $(MSG_EXTENDED_LISTING) $@
382 | $(OBJDUMP) -h -S $< > $@
383 |
384 | # Create a symbol table from ELF output file.
385 | %.sym: %.elf
386 | @echo
387 | @echo $(MSG_SYMBOL_TABLE) $@
388 | $(NM) -n $< > $@
389 |
390 |
391 |
392 | # Link: create ELF output file from object files.
393 | .SECONDARY : $(TARGET).elf
394 | .PRECIOUS : $(OBJ)
395 | %.elf: $(OBJ)
396 | @echo
397 | @echo $(MSG_LINKING) $@
398 | $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
399 |
400 |
401 | # Compile: create object files from C source files.
402 | %.o : %.c
403 | @echo
404 | @echo $(MSG_COMPILING) $<
405 | $(CC) -c $(ALL_CFLAGS) $< -o $@
406 |
407 |
408 | # Compile: create assembler files from C source files.
409 | %.s : %.c
410 | $(CC) -S $(ALL_CFLAGS) $< -o $@
411 |
412 |
413 | # Assemble: create object files from assembler source files.
414 | %.o : %.S
415 | @echo
416 | @echo $(MSG_ASSEMBLING) $<
417 | $(CC) -c $(ALL_ASFLAGS) $< -o $@
418 |
419 |
420 |
421 | # Target: clean project.
422 | clean: begin clean_list finished end
423 |
424 | clean_list :
425 | @echo
426 | @echo $(MSG_CLEANING)
427 | $(REMOVE) $(TARGET).hex
428 | $(REMOVE) $(TARGET).eep
429 | $(REMOVE) $(TARGET).obj
430 | $(REMOVE) $(TARGET).cof
431 | $(REMOVE) $(TARGET).elf
432 | $(REMOVE) $(TARGET).map
433 | $(REMOVE) $(TARGET).obj
434 | $(REMOVE) $(TARGET).a90
435 | $(REMOVE) $(TARGET).sym
436 | $(REMOVE) $(TARGET).lnk
437 | $(REMOVE) $(TARGET).lss
438 | $(REMOVE) $(OBJ)
439 | $(REMOVE) $(LST)
440 | $(REMOVE) $(SRC:.c=.s)
441 | $(REMOVE) $(SRC:.c=.d)
442 | $(REMOVE) .dep/*
443 |
444 |
445 |
446 | # Include the dependency files.
447 | -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
448 |
449 |
450 | # Listing of phony targets.
451 | .PHONY : all begin finish end sizebefore sizeafter gccversion \
452 | build elf hex eep lss sym coff extcoff \
453 | clean clean_list program
454 |
455 |
--------------------------------------------------------------------------------
/bigchars.JPG:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Sylaina/oled-display/d826069f1f61c7694b2b06e32c3939e53e93b031/bigchars.JPG
--------------------------------------------------------------------------------
/font.c:
--------------------------------------------------------------------------------
1 | /*
2 | * font.c
3 | * i2c
4 | *
5 | * Created by Michael Köhler on 16.09.18.
6 | * Copyright 2018 Skie-Systems. All rights reserved.
7 | *
8 | */
9 | #include "font.h"
10 |
11 | const char ssd1306oled_font[][6] PROGMEM = {
12 | {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // sp
13 | {0x00, 0x00, 0x00, 0x2f, 0x00, 0x00}, // !
14 | {0x00, 0x00, 0x07, 0x00, 0x07, 0x00}, // "
15 | {0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14}, // #
16 | {0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12}, // $
17 | {0x00, 0x62, 0x64, 0x08, 0x13, 0x23}, // %
18 | {0x00, 0x36, 0x49, 0x55, 0x22, 0x50}, // &
19 | {0x00, 0x00, 0x05, 0x03, 0x00, 0x00}, // '
20 | {0x00, 0x00, 0x1c, 0x22, 0x41, 0x00}, // (
21 | {0x00, 0x00, 0x41, 0x22, 0x1c, 0x00}, // )
22 | {0x00, 0x14, 0x08, 0x3E, 0x08, 0x14}, // *
23 | {0x00, 0x08, 0x08, 0x3E, 0x08, 0x08}, // +
24 | {0x00, 0x00, 0x00, 0xA0, 0x60, 0x00}, // ,
25 | {0x00, 0x08, 0x08, 0x08, 0x08, 0x08}, // -
26 | {0x00, 0x00, 0x60, 0x60, 0x00, 0x00}, // .
27 | {0x00, 0x20, 0x10, 0x08, 0x04, 0x02}, // /
28 | {0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E}, // 0
29 | {0x00, 0x00, 0x42, 0x7F, 0x40, 0x00}, // 1
30 | {0x00, 0x42, 0x61, 0x51, 0x49, 0x46}, // 2
31 | {0x00, 0x21, 0x41, 0x45, 0x4B, 0x31}, // 3
32 | {0x00, 0x18, 0x14, 0x12, 0x7F, 0x10}, // 4
33 | {0x00, 0x27, 0x45, 0x45, 0x45, 0x39}, // 5
34 | {0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30}, // 6
35 | {0x00, 0x01, 0x71, 0x09, 0x05, 0x03}, // 7
36 | {0x00, 0x36, 0x49, 0x49, 0x49, 0x36}, // 8
37 | {0x00, 0x06, 0x49, 0x49, 0x29, 0x1E}, // 9
38 | {0x00, 0x00, 0x36, 0x36, 0x00, 0x00}, // :
39 | {0x00, 0x00, 0x56, 0x36, 0x00, 0x00}, // ;
40 | {0x00, 0x08, 0x14, 0x22, 0x41, 0x00}, // <
41 | {0x00, 0x14, 0x14, 0x14, 0x14, 0x14}, // =
42 | {0x00, 0x00, 0x41, 0x22, 0x14, 0x08}, // >
43 | {0x00, 0x02, 0x01, 0x51, 0x09, 0x06}, // ?
44 | {0x00, 0x32, 0x49, 0x59, 0x51, 0x3E}, // @
45 | {0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C}, // A
46 | {0x00, 0x7F, 0x49, 0x49, 0x49, 0x36}, // B
47 | {0x00, 0x3E, 0x41, 0x41, 0x41, 0x22}, // C
48 | {0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C}, // D
49 | {0x00, 0x7F, 0x49, 0x49, 0x49, 0x41}, // E
50 | {0x00, 0x7F, 0x09, 0x09, 0x09, 0x01}, // F
51 | {0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A}, // G
52 | {0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F}, // H
53 | {0x00, 0x00, 0x41, 0x7F, 0x41, 0x00}, // I
54 | {0x00, 0x20, 0x40, 0x41, 0x3F, 0x01}, // J
55 | {0x00, 0x7F, 0x08, 0x14, 0x22, 0x41}, // K
56 | {0x00, 0x7F, 0x40, 0x40, 0x40, 0x40}, // L
57 | {0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F}, // M
58 | {0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F}, // N
59 | {0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E}, // O
60 | {0x00, 0x7F, 0x09, 0x09, 0x09, 0x06}, // P
61 | {0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E}, // Q
62 | {0x00, 0x7F, 0x09, 0x19, 0x29, 0x46}, // R
63 | {0x00, 0x46, 0x49, 0x49, 0x49, 0x31}, // S
64 | {0x00, 0x01, 0x01, 0x7F, 0x01, 0x01}, // T
65 | {0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F}, // U
66 | {0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F}, // V
67 | {0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F}, // W
68 | {0x00, 0x63, 0x14, 0x08, 0x14, 0x63}, // X
69 | {0x00, 0x07, 0x08, 0x70, 0x08, 0x07}, // Y
70 | {0x00, 0x61, 0x51, 0x49, 0x45, 0x43}, // Z
71 | {0x00, 0x00, 0x7F, 0x41, 0x41, 0x00}, // [
72 | {0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55}, // backslash
73 | {0x00, 0x00, 0x41, 0x41, 0x7F, 0x00}, // ]
74 | {0x00, 0x04, 0x02, 0x01, 0x02, 0x04}, // ^
75 | {0x00, 0x40, 0x40, 0x40, 0x40, 0x40}, // _
76 | {0x00, 0x00, 0x01, 0x02, 0x04, 0x00}, // '
77 | {0x00, 0x20, 0x54, 0x54, 0x54, 0x78}, // a
78 | {0x00, 0x7F, 0x48, 0x44, 0x44, 0x38}, // b
79 | {0x00, 0x38, 0x44, 0x44, 0x44, 0x20}, // c
80 | {0x00, 0x38, 0x44, 0x44, 0x48, 0x7F}, // d
81 | {0x00, 0x38, 0x54, 0x54, 0x54, 0x18}, // e
82 | {0x00, 0x08, 0x7E, 0x09, 0x01, 0x02}, // f
83 | {0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C}, // g
84 | {0x00, 0x7F, 0x08, 0x04, 0x04, 0x78}, // h
85 | {0x00, 0x00, 0x44, 0x7D, 0x40, 0x00}, // i
86 | {0x00, 0x40, 0x80, 0x84, 0x7D, 0x00}, // j
87 | {0x00, 0x7F, 0x10, 0x28, 0x44, 0x00}, // k
88 | {0x00, 0x00, 0x41, 0x7F, 0x40, 0x00}, // l
89 | {0x00, 0x7C, 0x04, 0x18, 0x04, 0x78}, // m
90 | {0x00, 0x7C, 0x08, 0x04, 0x04, 0x78}, // n
91 | {0x00, 0x38, 0x44, 0x44, 0x44, 0x38}, // o
92 | {0x00, 0xFC, 0x24, 0x24, 0x24, 0x18}, // p
93 | {0x00, 0x18, 0x24, 0x24, 0x18, 0xFC}, // q
94 | {0x00, 0x7C, 0x08, 0x04, 0x04, 0x08}, // r
95 | {0x00, 0x48, 0x54, 0x54, 0x54, 0x20}, // s
96 | {0x00, 0x04, 0x3F, 0x44, 0x40, 0x20}, // t
97 | {0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C}, // u
98 | {0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C}, // v
99 | {0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C}, // w
100 | {0x00, 0x44, 0x28, 0x10, 0x28, 0x44}, // x
101 | {0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C}, // y
102 | {0x00, 0x44, 0x64, 0x54, 0x4C, 0x44}, // z
103 | {0x00, 0x00, 0x08, 0x77, 0x41, 0x00}, // {
104 | {0x00, 0x00, 0x00, 0x63, 0x00, 0x00}, // ¦
105 | {0x00, 0x00, 0x41, 0x77, 0x08, 0x00}, // }
106 | {0x00, 0x08, 0x04, 0x08, 0x08, 0x04}, // ~
107 | /* end of normal char-set */
108 | /* put your own signs/chars here, edit special_char too */
109 | /* be sure that your first special char stand here */
110 | {0x00, 0x3A, 0x40, 0x40, 0x20, 0x7A}, // ü, !!! Important: this must be special_char[0] !!!
111 | {0x00, 0x3D, 0x40, 0x40, 0x40, 0x3D}, // Ü
112 | {0x00, 0x21, 0x54, 0x54, 0x54, 0x79}, // ä
113 | {0x00, 0x7D, 0x12, 0x11, 0x12, 0x7D}, // Ä
114 | {0x00, 0x39, 0x44, 0x44, 0x44, 0x39}, // ö
115 | {0x00, 0x3D, 0x42, 0x42, 0x42, 0x3D}, // Ö
116 | {0x00, 0x02, 0x05, 0x02, 0x00, 0x00}, // °
117 | {0x00, 0x7E, 0x01, 0x49, 0x55, 0x73}, // ß
118 | {0x00, 0x7C, 0x10, 0x10, 0x08, 0x1C}, // µ
119 | {0x00, 0x30, 0x48, 0x20, 0x48, 0x30}, // ω
120 | {0x00, 0x5C, 0x62, 0x02, 0x62, 0x5C} // Ω
121 | };
122 | const char special_char[][2] PROGMEM = {
123 | // define position of special char in font
124 | // {special char, position in font}
125 | // be sure that last element of this
126 | // array are {0xff, 0xff} and first element
127 | // are {first special char, first element after normal char-set in font}
128 | {'ü', 95}, // special_char[0]
129 | {'Ü', 96},
130 | {'ä', 97},
131 | {'Ä', 98},
132 | {'ö', 99},
133 | {'Ö', 100},
134 | {'°', 101},
135 | {'ß', 102},
136 | {'µ', 103},
137 | {'ω', 104},
138 | {'Ω', 105},
139 | {0xff, 0xff} // end of table special_char
140 | };
141 |
--------------------------------------------------------------------------------
/font.h:
--------------------------------------------------------------------------------
1 | /*
2 | * font.h
3 | * i2c
4 | *
5 | * Created by Michael Köhler on 13.09.18.
6 | * Copyright 2018 Skie-Systems. All rights reserved.
7 | *
8 | */
9 | #ifndef _font_h_
10 | #define _font_h_
11 | #include
12 |
13 | extern const char ssd1306oled_font[][6] PROGMEM;
14 | extern const char special_char[][2] PROGMEM;
15 |
16 | #endif
17 |
--------------------------------------------------------------------------------
/i2c.c:
--------------------------------------------------------------------------------
1 | //
2 | // i2c.c
3 | // i2c
4 | //
5 | // Created by Michael Köhler on 09.10.17.
6 | //
7 | //
8 |
9 | #include "i2c.h"
10 |
11 | #if defined (__AVR_ATmega328__) || defined(__AVR_ATmega328P__) || \
12 | defined(__AVR_ATmega168P__) || defined(__AVR_ATmega168PA__) || \
13 | defined(__AVR_ATmega88P__) || \
14 | defined(__AVR_ATmega8__) || \
15 | defined(__AVR_ATmega48P__) || \
16 | defined(__AVR_ATmega1284P__) || \
17 | defined (__AVR_ATmega324A__) || defined (__AVR_ATmega324P__) || defined (__AVR_ATmega324PA__) || \
18 | defined (__AVR_ATmega644__) || defined (__AVR_ATmega644A__) || defined (__AVR_ATmega644P__) || defined (__AVR_ATmega644PA__) || \
19 | defined (__AVR_ATmega1284P__) || \
20 | defined (__AVR_ATmega2560__)
21 | #if PSC_I2C != 1 && PSC_I2C != 4 && PSC_I2C != 16 && PSC_I2C != 64
22 | #error "Wrong prescaler for TWI !"
23 | #elif SET_TWBR < 0 || SET_TWBR > 255
24 | #error "TWBR out of range, change PSC_I2C or F_I2C !"
25 | #endif
26 |
27 | uint8_t I2C_ErrorCode;
28 | /**********************************************
29 | Public Function: i2c_init
30 |
31 | Purpose: Initialise TWI/I2C interface
32 |
33 | Input Parameter: none
34 |
35 | Return Value: none
36 | **********************************************/
37 | void i2c_init(void){
38 | // set clock
39 | switch (PSC_I2C) {
40 | case 4:
41 | TWSR = 0x1;
42 | break;
43 | case 16:
44 | TWSR = 0x2;
45 | break;
46 | case 64:
47 | TWSR = 0x3;
48 | break;
49 | default:
50 | TWSR = 0x00;
51 | break;
52 | }
53 | TWBR = (uint8_t)SET_TWBR;
54 | // enable
55 | TWCR = (1 << TWEN);
56 | }
57 | /**********************************************
58 | Public Function: i2c_start
59 |
60 | Purpose: Start TWI/I2C interface
61 |
62 | Input Parameter:
63 | - uint8_t i2c_addr: Adress of reciever
64 |
65 | Return Value: none
66 | **********************************************/
67 | void i2c_start(uint8_t i2c_addr){
68 | // i2c start
69 | TWCR = (1 << TWINT)|(1 << TWSTA)|(1 << TWEN);
70 | uint16_t timeout = F_CPU/F_I2C*2.0;
71 | while((TWCR & (1 << TWINT)) == 0 &&
72 | timeout !=0){
73 | timeout--;
74 | if(timeout == 0){
75 | I2C_ErrorCode |= (1 << I2C_START);
76 | return;
77 | }
78 | };
79 | // send adress
80 | TWDR = i2c_addr;
81 | TWCR = (1 << TWINT)|( 1 << TWEN);
82 | timeout = F_CPU/F_I2C*2.0;
83 | while((TWCR & (1 << TWINT)) == 0 &&
84 | timeout !=0){
85 | timeout--;
86 | if(timeout == 0){
87 | I2C_ErrorCode |= (1 << I2C_SENDADRESS);
88 | return;
89 | }
90 | };
91 | }
92 | /**********************************************
93 | Public Function: i2c_stop
94 |
95 | Purpose: Stop TWI/I2C interface
96 |
97 | Input Parameter: none
98 |
99 | Return Value: none
100 | **********************************************/
101 | void i2c_stop(void){
102 | // i2c stop
103 | TWCR = (1 << TWINT)|(1 << TWSTO)|(1 << TWEN);
104 | }
105 | /**********************************************
106 | Public Function: i2c_byte
107 |
108 | Purpose: Send byte at TWI/I2C interface
109 |
110 | Input Parameter:
111 | - uint8_t byte: Byte to send to reciever
112 |
113 | Return Value: none
114 | **********************************************/
115 | void i2c_byte(uint8_t byte){
116 | TWDR = byte;
117 | TWCR = (1 << TWINT)|( 1 << TWEN);
118 | uint16_t timeout = F_CPU/F_I2C*2.0;
119 | while((TWCR & (1 << TWINT)) == 0 &&
120 | timeout !=0){
121 | timeout--;
122 | if(timeout == 0){
123 | I2C_ErrorCode |= (1 << I2C_BYTE);
124 | return;
125 | }
126 | };
127 | }
128 | /**********************************************
129 | Public Function: i2c_readAck
130 |
131 | Purpose: read acknowledge from TWI/I2C Interface
132 |
133 | Input Parameter: none
134 |
135 | Return Value: uint8_t
136 | - TWDR: recieved value at TWI/I2C-Interface, 0 at timeout
137 | - 0: Error at read
138 | **********************************************/
139 | uint8_t i2c_readAck(void){
140 | TWCR = (1<
22 | #include
23 |
24 | extern uint8_t I2C_ErrorCode; // variable for communication error at twi
25 | // ckeck it in your code
26 | // 0 means no error
27 | // define bits in I2C-ErrorCode:
28 | #define I2C_START 0 // bit 0: timeout start-condition
29 | #define I2C_SENDADRESS 1 // bit 0: timeout device-adress
30 | #define I2C_BYTE 2 // bit 0: timeout byte-transmission
31 | #define I2C_READACK 3 // bit 0: timeout read acknowledge
32 | #define I2C_READNACK 4 // bit 0: timeout read nacknowledge
33 |
34 | void i2c_init(void); // init hw-i2c
35 | void i2c_start(uint8_t i2c_addr); // send i2c_start_condition
36 | void i2c_stop(void); // send i2c_stop_condition
37 | void i2c_byte(uint8_t byte); // send data_byte
38 |
39 | uint8_t i2c_readAck(void); // read byte with ACK
40 | uint8_t i2c_readNAck(void); // read byte with NACK
41 |
42 | #ifdef __cplusplus
43 | }
44 | #endif
45 |
46 | #endif /* i2c_h */
47 |
--------------------------------------------------------------------------------
/lcd.c:
--------------------------------------------------------------------------------
1 | /*
2 | * This file is part of lcd library for ssd1306/ssd1309/sh1106 oled-display.
3 | *
4 | * lcd library for ssd1306/ssd1309/sh1106 oled-display is free software: you can redistribute it and/or modify
5 | * it under the terms of the GNU General Public License as published by
6 | * the Free Software Foundation, either version 3 of the License, or any later version.
7 | *
8 | * lcd library for ssd1306/ssd1309/sh1106 oled-display is distributed in the hope that it will be useful,
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 | * GNU General Public License for more details.
12 | *
13 | * You should have received a copy of the GNU General Public License
14 | * along with Foobar. If not, see .
15 | *
16 | * Diese Datei ist Teil von lcd library for ssd1306/ssd1309/sh1106 oled-display.
17 | *
18 | * lcd library for ssd1306/ssd1309/sh1106 oled-display ist Freie Software: Sie können es unter den Bedingungen
19 | * der GNU General Public License, wie von der Free Software Foundation,
20 | * Version 3 der Lizenz oder jeder späteren
21 | * veröffentlichten Version, weiterverbreiten und/oder modifizieren.
22 | *
23 | * lcd library for ssd1306/ssd1309/sh1106 oled-display wird in der Hoffnung, dass es nützlich sein wird, aber
24 | * OHNE JEDE GEWÄHRLEISTUNG, bereitgestellt; sogar ohne die implizite
25 | * Gewährleistung der MARKTFÄHIGKEIT oder EIGNUNG FÜR EINEN BESTIMMTEN ZWECK.
26 | * Siehe die GNU General Public License für weitere Details.
27 | *
28 | * Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
29 | * Programm erhalten haben. Wenn nicht, siehe .
30 | *
31 | * lcd.h
32 | *
33 | * Created by Michael Köhler on 22.12.16.
34 | * Copyright 2016 Skie-Systems. All rights reserved.
35 | *
36 | * lib for OLED-Display with ssd1306/ssd1309/sh1106-Controller
37 | * first dev-version only for I2C-Connection
38 | * at ATMega328P like Arduino Uno
39 | *
40 | * at GRAPHICMODE lib needs static SRAM for display:
41 | * DISPLAY-WIDTH * DISPLAY-HEIGHT + 2 bytes
42 | *
43 | * at TEXTMODE lib need static SRAM for display:
44 | * 2 bytes (cursorPosition)
45 | */
46 |
47 | #include "lcd.h"
48 | #include "font.h"
49 | #include
50 |
51 | #if defined SPI
52 | #include
53 | #endif
54 |
55 | static struct {
56 | uint8_t x;
57 | uint8_t y;
58 | } cursorPosition;
59 |
60 | static uint8_t charMode = NORMALSIZE;
61 | #if defined GRAPHICMODE
62 | #include
63 | static uint8_t displayBuffer[DISPLAY_HEIGHT/8][DISPLAY_WIDTH];
64 | #elif defined TEXTMODE
65 | #else
66 | #error "No valid displaymode! Refer lcd.h"
67 | #endif
68 |
69 |
70 | const uint8_t init_sequence [] PROGMEM = { // Initialization Sequence
71 | LCD_DISP_OFF, // Display OFF (sleep mode)
72 | 0x20, 0b00, // Set Memory Addressing Mode
73 | // 00=Horizontal Addressing Mode; 01=Vertical Addressing Mode;
74 | // 10=Page Addressing Mode (RESET); 11=Invalid
75 | 0xB0, // Set Page Start Address for Page Addressing Mode, 0-7
76 | 0xC8, // Set COM Output Scan Direction
77 | 0x00, // --set low column address
78 | 0x10, // --set high column address
79 | 0x40, // --set start line address
80 | 0x81, 0x3F, // Set contrast control register
81 | 0xA1, // Set Segment Re-map. A0=address mapped; A1=address 127 mapped.
82 | 0xA6, // Set display mode. A6=Normal; A7=Inverse
83 | 0xA8, DISPLAY_HEIGHT-1, // Set multiplex ratio(1 to 64)
84 | 0xA4, // Output RAM to Display
85 | // 0xA4=Output follows RAM content; 0xA5,Output ignores RAM content
86 | 0xD3, 0x00, // Set display offset. 00 = no offset
87 | 0xD5, // --set display clock divide ratio/oscillator frequency
88 | 0xF0, // --set divide ratio
89 | 0xD9, 0x22, // Set pre-charge period
90 | // Set com pins hardware configuration
91 | #if DISPLAY_HEIGHT==64
92 | 0xDA, 0x12,
93 | #elif DISPLAY_HEIGHT==32
94 | 0xDA, 0x02,
95 | #endif
96 | 0xDB, // --set vcomh
97 | 0x20, // 0x20,0.77xVcc
98 | 0x8D, 0x14, // Set DC-DC enable
99 |
100 |
101 | };
102 | #pragma mark LCD COMMUNICATION
103 | void lcd_command(uint8_t cmd[], uint8_t size) {
104 | #if defined I2C
105 | i2c_start((LCD_I2C_ADR << 1) | 0);
106 | i2c_byte(0x00); // 0x00 for command, 0x40 for data
107 | for (uint8_t i=0; i (DISPLAY_WIDTH) || y > (DISPLAY_HEIGHT/8-1)) return;// out of display
168 | cursorPosition.x=x;
169 | cursorPosition.y=y;
170 | #if defined (SSD1306) || defined (SSD1309)
171 | uint8_t commandSequence[] = {0xb0+y, 0x21, x, 0x7f};
172 | #elif defined SH1106
173 | uint8_t commandSequence[] = {0xb0+y, 0x21, 0x00+((2+x) & (0x0f)), 0x10+( ((2+x) & (0xf0)) >> 4 ), 0x7f};
174 | #endif
175 | lcd_command(commandSequence, sizeof(commandSequence));
176 | }
177 | void lcd_clrscr(void){
178 | #ifdef GRAPHICMODE
179 | for (uint8_t i = 0; i < DISPLAY_HEIGHT/8; i++){
180 | memset(displayBuffer[i], 0x00, sizeof(displayBuffer[i]));
181 | lcd_gotoxy(0,i);
182 | lcd_data(displayBuffer[i], sizeof(displayBuffer[i]));
183 | }
184 | #elif defined TEXTMODE
185 | uint8_t displayBuffer[DISPLAY_WIDTH];
186 | memset(displayBuffer, 0x00, sizeof(displayBuffer));
187 | for (uint8_t i = 0; i < DISPLAY_HEIGHT/8; i++){
188 | lcd_gotoxy(0,i);
189 | lcd_data(displayBuffer, sizeof(displayBuffer));
190 | }
191 | #endif
192 | lcd_home();
193 | }
194 | void lcd_home(void){
195 | lcd_gotoxy(0, 0);
196 | }
197 | void lcd_invert(uint8_t invert){
198 | uint8_t commandSequence[1];
199 | if (invert != YES) {
200 | commandSequence[0] = 0xA6;
201 | } else {
202 | commandSequence[0] = 0xA7;
203 | }
204 | lcd_command(commandSequence, 1);
205 | }
206 | void lcd_sleep(uint8_t sleep){
207 | uint8_t commandSequence[1];
208 | if (sleep != YES) {
209 | commandSequence[0] = 0xAF;
210 | } else {
211 | commandSequence[0] = 0xAE;
212 | }
213 | lcd_command(commandSequence, 1);
214 | }
215 | void lcd_set_contrast(uint8_t contrast){
216 | uint8_t commandSequence[2] = {0x81, contrast};
217 | lcd_command(commandSequence, sizeof(commandSequence));
218 | }
219 | void lcd_putc(char c){
220 | switch (c) {
221 | case '\b':
222 | // backspace
223 | lcd_gotoxy(cursorPosition.x-charMode, cursorPosition.y);
224 | lcd_putc(' ');
225 | lcd_gotoxy(cursorPosition.x-charMode, cursorPosition.y);
226 | break;
227 | case '\t':
228 | // tab
229 | if( (cursorPosition.x+charMode*4) < (DISPLAY_WIDTH/ sizeof(FONT[0])-charMode*4) ){
230 | lcd_gotoxy(cursorPosition.x+charMode*4, cursorPosition.y);
231 | }else{
232 | lcd_gotoxy(DISPLAY_WIDTH/ sizeof(FONT[0]), cursorPosition.y);
233 | }
234 | break;
235 | case '\n':
236 | // linefeed
237 | if(cursorPosition.y < (DISPLAY_HEIGHT/8-1)){
238 | lcd_gotoxy(cursorPosition.x, cursorPosition.y+charMode);
239 | }
240 | break;
241 | case '\r':
242 | // carrige return
243 | lcd_gotoxy(0, cursorPosition.y);
244 | break;
245 | default:
246 | // char doesn't fit in line
247 | if( (cursorPosition.x >= DISPLAY_WIDTH-sizeof(FONT[0])) || (c < ' ') ) break;
248 | // mapping char
249 | c -= ' ';
250 | if (c >= pgm_read_byte(&special_char[0][1]) ) {
251 | char temp = c;
252 | c = 0xff;
253 | for (uint8_t i=0; pgm_read_byte(&special_char[i][1]) != 0xff; i++) {
254 | if ( pgm_read_byte(&special_char[i][0])-' ' == temp ) {
255 | c = pgm_read_byte(&special_char[i][1]);
256 | break;
257 | }
258 | }
259 | if ( c == 0xff ) break;
260 | }
261 | // print char at display
262 | #ifdef GRAPHICMODE
263 | if (charMode == DOUBLESIZE) {
264 | uint16_t doubleChar[sizeof(FONT[0])];
265 | uint8_t dChar;
266 | if ((cursorPosition.x+2*sizeof(FONT[0]))>DISPLAY_WIDTH) break;
267 |
268 | for (uint8_t i=0; i < sizeof(FONT[0]); i++) {
269 | doubleChar[i] = 0;
270 | dChar = pgm_read_byte(&(FONT[(uint8_t)c][i]));
271 | for (uint8_t j=0; j<8; j++) {
272 | if ((dChar & (1 << j))) {
273 | doubleChar[i] |= (1 << (j*2));
274 | doubleChar[i] |= (1 << ((j*2)+1));
275 | }
276 | }
277 | }
278 | for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
279 | {
280 | // load bit-pattern from flash
281 | displayBuffer[cursorPosition.y+1][cursorPosition.x+(2*i)] = doubleChar[i] >> 8;
282 | displayBuffer[cursorPosition.y+1][cursorPosition.x+(2*i)+1] = doubleChar[i] >> 8;
283 | displayBuffer[cursorPosition.y][cursorPosition.x+(2*i)] = doubleChar[i] & 0xff;
284 | displayBuffer[cursorPosition.y][cursorPosition.x+(2*i)+1] = doubleChar[i] & 0xff;
285 | }
286 | cursorPosition.x += sizeof(FONT[0])*2;
287 | } else {
288 | if ((cursorPosition.x+sizeof(FONT[0]))>DISPLAY_WIDTH) break;
289 |
290 | for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
291 | {
292 | // load bit-pattern from flash
293 | displayBuffer[cursorPosition.y][cursorPosition.x+i] =pgm_read_byte(&(FONT[(uint8_t)c][i]));
294 | }
295 | cursorPosition.x += sizeof(FONT[0]);
296 | }
297 | #elif defined TEXTMODE
298 | if (charMode == DOUBLESIZE) {
299 | uint16_t doubleChar[sizeof(FONT[0])];
300 | uint8_t dChar;
301 | if ((cursorPosition.x+2*sizeof(FONT[0]))>DISPLAY_WIDTH) break;
302 |
303 | for (uint8_t i=0; i < sizeof(FONT[0]); i++) {
304 | doubleChar[i] = 0;
305 | dChar = pgm_read_byte(&(FONT[(uint8_t)c][i]));
306 | for (uint8_t j=0; j<8; j++) {
307 | if ((dChar & (1 << j))) {
308 | doubleChar[i] |= (1 << (j*2));
309 | doubleChar[i] |= (1 << ((j*2)+1));
310 | }
311 | }
312 | }
313 | uint8_t data[sizeof(FONT[0])*2];
314 | for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
315 | {
316 | // print font to ram, print 6 columns
317 | data[i<<1]=(doubleChar[i] & 0xff);
318 | data[(i<<1)+1]=(doubleChar[i] & 0xff);
319 | }
320 | lcd_data(data, sizeof(FONT[0])*2);
321 |
322 | #if defined (SSD1306) || defined (SSD1309)
323 | uint8_t commandSequence[] = {0xb0+cursorPosition.y+1,
324 | 0x21,
325 | cursorPosition.x,
326 | 0x7f};
327 | #elif defined SH1106
328 | uint8_t commandSequence[] = {0xb0+cursorPosition.y+1,
329 | 0x21,
330 | 0x00+((2+cursorPosition.x) & (0x0f)),
331 | 0x10+( ((2+cursorPosition.x) & (0xf0)) >> 4 ),
332 | 0x7f};
333 | #endif
334 | lcd_command(commandSequence, sizeof(commandSequence));
335 |
336 | for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
337 | {
338 | // print font to ram, print 6 columns
339 | data[i<<1]=(doubleChar[i] >> 8);
340 | data[(i<<1)+1]=(doubleChar[i] >> 8);
341 | }
342 | lcd_data(data, sizeof(FONT[0])*2);
343 |
344 | commandSequence[0] = 0xb0+cursorPosition.y;
345 | #if defined (SSD1306) || defined (SSD1309)
346 | commandSequence[2] = cursorPosition.x+(2*sizeof(FONT[0]));
347 | #elif defined SH1106
348 | commandSequence[2] = 0x00+((2+cursorPosition.x+(2*sizeof(FONT[0]))) & (0x0f));
349 | commandSequence[3] = 0x10+( ((2+cursorPosition.x+(2*sizeof(FONT[0]))) & (0xf0)) >> 4 );
350 | #endif
351 | lcd_command(commandSequence, sizeof(commandSequence));
352 | cursorPosition.x += sizeof(FONT[0])*2;
353 | } else {
354 | uint8_t data[sizeof(FONT[0])];
355 | if ((cursorPosition.x+sizeof(FONT[0]))>DISPLAY_WIDTH) break;
356 |
357 | for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
358 | {
359 | // print font to ram, print 6 columns
360 | data[i]=(pgm_read_byte(&(FONT[(uint8_t)c][i])));
361 | }
362 | lcd_data(data, sizeof(FONT[0]));
363 | cursorPosition.x += sizeof(FONT[0]);
364 | }
365 | #endif
366 | break;
367 | }
368 |
369 | }
370 | void lcd_charMode(uint8_t mode){
371 | charMode = mode;
372 | }
373 | void lcd_flip(uint8_t flipping){
374 | uint8_t command[2] = {0xC8, 0xA1};
375 | switch(flipping){
376 | case 0:
377 | // normal mode default at init (needs to be reload data to display)
378 | command[0] = 0xC8;
379 | command[1] = 0xA1;
380 | lcd_command(command, sizeof(command));
381 | break;
382 | case 1:
383 | // flip horizontal && vertical (needs to be reload data to display)
384 | command[0] = 0xC0;
385 | command[1] = 0xA0;
386 | lcd_command(command, sizeof(command));
387 | break;
388 | case 2:
389 | // flip vertical (immediate without reload data to display)
390 | command[0] = 0xC0;
391 | lcd_command(command, sizeof(command));
392 | break;
393 | case 3:
394 | // flip horizontal (needs to be reload data to display)
395 | command[1] = 0xA0;
396 | lcd_command(command, sizeof(command));
397 | default:
398 | // do nothing
399 | break;
400 | }
401 | }
402 | void lcd_puts(const char* s){
403 | while (*s) {
404 | lcd_putc(*s++);
405 | }
406 | }
407 | void lcd_puts_p(const char* progmem_s){
408 | register uint8_t c;
409 | while ((c = pgm_read_byte(progmem_s++))) {
410 | lcd_putc(c);
411 | }
412 | }
413 | #ifdef GRAPHICMODE
414 | #pragma mark -
415 | #pragma mark GRAPHIC FUNCTIONS
416 | uint8_t lcd_drawPixel(uint8_t x, uint8_t y, uint8_t color){
417 | if( x > DISPLAY_WIDTH-1 || y > (DISPLAY_HEIGHT-1)) return 1; // out of Display
418 |
419 | if( color == WHITE){
420 | displayBuffer[(y / 8)][x] |= (1 << (y % 8));
421 | } else {
422 | displayBuffer[(y / 8)][x] &= ~(1 << (y % 8));
423 | }
424 |
425 | return 0;
426 | }
427 | uint8_t lcd_drawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t color){
428 | uint8_t result;
429 |
430 | int dx = abs(x2-x1), sx = x1 dy) { err += dy; x1 += sx; } /* e_xy+e_x > 0 */
439 | if (e2 < dx) { err += dx; y1 += sy; } /* e_xy+e_y < 0 */
440 | }
441 |
442 | return result;
443 | }
444 | uint8_t lcd_drawRect(uint8_t px1, uint8_t py1, uint8_t px2, uint8_t py2, uint8_t color){
445 | uint8_t result;
446 |
447 | result = lcd_drawLine(px1, py1, px2, py1, color);
448 | result = lcd_drawLine(px2, py1, px2, py2, color);
449 | result = lcd_drawLine(px2, py2, px1, py2, color);
450 | result = lcd_drawLine(px1, py2, px1, py1, color);
451 |
452 | return result;
453 | }
454 | uint8_t lcd_fillRect(uint8_t px1, uint8_t py1, uint8_t px2, uint8_t py2, uint8_t color){
455 | uint8_t result;
456 |
457 | if( px1 > px2){
458 | uint8_t temp = px1;
459 | px1 = px2;
460 | px2 = temp;
461 | temp = py1;
462 | py1 = py2;
463 | py2 = temp;
464 | }
465 | for (uint8_t i=0; i<=(py2-py1); i++){
466 | result = lcd_drawLine(px1, py1+i, px2, py1+i, color);
467 | }
468 |
469 | return result;
470 | }
471 | uint8_t lcd_drawCircle(uint8_t center_x, uint8_t center_y, uint8_t radius, uint8_t color){
472 | uint8_t result;
473 |
474 | int16_t f = 1 - radius;
475 | int16_t ddF_x = 1;
476 | int16_t ddF_y = -2 * radius;
477 | int16_t x = 0;
478 | int16_t y = radius;
479 |
480 | result = lcd_drawPixel(center_x , center_y+radius, color);
481 | result = lcd_drawPixel(center_x , center_y-radius, color);
482 | result = lcd_drawPixel(center_x+radius, center_y , color);
483 | result = lcd_drawPixel(center_x-radius, center_y , color);
484 |
485 | while (x= 0) {
487 | y--;
488 | ddF_y += 2;
489 | f += ddF_y;
490 | }
491 | x++;
492 | ddF_x += 2;
493 | f += ddF_x;
494 |
495 | result = lcd_drawPixel(center_x + x, center_y + y, color);
496 | result = lcd_drawPixel(center_x - x, center_y + y, color);
497 | result = lcd_drawPixel(center_x + x, center_y - y, color);
498 | result = lcd_drawPixel(center_x - x, center_y - y, color);
499 | result = lcd_drawPixel(center_x + y, center_y + x, color);
500 | result = lcd_drawPixel(center_x - y, center_y + x, color);
501 | result = lcd_drawPixel(center_x + y, center_y - x, color);
502 | result = lcd_drawPixel(center_x - y, center_y - x, color);
503 | }
504 | return result;
505 | }
506 | uint8_t lcd_fillCircle(uint8_t center_x, uint8_t center_y, uint8_t radius, uint8_t color) {
507 | uint8_t result;
508 | for(uint8_t i=0; i<= radius;i++){
509 | result = lcd_drawCircle(center_x, center_y, i, color);
510 | }
511 | return result;
512 | }
513 | uint8_t lcd_drawBitmap(uint8_t x, uint8_t y, const uint8_t *picture, uint8_t width, uint8_t height, uint8_t color){
514 | uint8_t result,i,j, byteWidth = (width+7)/8;
515 | for (j = 0; j < height; j++) {
516 | for(i=0; i < width;i++){
517 | if(pgm_read_byte(picture + j * byteWidth + i / 8) & (128 >> (i & 7))){
518 | result = lcd_drawPixel(x+i, y+j, color);
519 | } else {
520 | result = lcd_drawPixel(x+i, y+j, !color);
521 | }
522 | }
523 | }
524 | return result;
525 | }
526 | void lcd_display() {
527 | #if defined (SSD1306) || defined (SSD1309)
528 | lcd_gotoxy(0,0);
529 | lcd_data(&displayBuffer[0][0], DISPLAY_WIDTH*DISPLAY_HEIGHT/8);
530 | #elif defined SH1106
531 | for (uint8_t i = 0; i < DISPLAY_HEIGHT/8; i++){
532 | lcd_gotoxy(0,i);
533 | lcd_data(displayBuffer[i], sizeof(displayBuffer[i]));
534 | }
535 | #endif
536 | }
537 | void lcd_clear_buffer() {
538 | for (uint8_t i = 0; i < DISPLAY_HEIGHT/8; i++){
539 | memset(displayBuffer[i], 0x00, sizeof(displayBuffer[i]));
540 | }
541 | }
542 | uint8_t lcd_check_buffer(uint8_t x, uint8_t y) {
543 | if( x > DISPLAY_WIDTH-1 || y > (DISPLAY_HEIGHT-1)) return 0; // out of Display
544 | return displayBuffer[(y / (DISPLAY_HEIGHT/8))][x] & (1 << (y % (DISPLAY_HEIGHT/8)));
545 | }
546 | void lcd_display_block(uint8_t x, uint8_t line, uint8_t width) {
547 | if (line > (DISPLAY_HEIGHT/8-1) || x > DISPLAY_WIDTH - 1){return;}
548 | if (x + width > DISPLAY_WIDTH) { // no -1 here, x alone is width 1
549 | width = DISPLAY_WIDTH - x;
550 | }
551 | lcd_goto_xpix_y(x,line);
552 | lcd_data(&displayBuffer[line][x], width);
553 | }
554 | #endif
555 |
--------------------------------------------------------------------------------
/lcd.h:
--------------------------------------------------------------------------------
1 | /*
2 | * This file is part of lcd library for ssd1306/ssd1309/sh1106 oled-display.
3 | *
4 | * lcd library for ssd1306/ssd1309/sh1106 oled-display is free software: you can redistribute it and/or modify
5 | * it under the terms of the GNU General Public License as published by
6 | * the Free Software Foundation, either version 3 of the License, or any later version.
7 | *
8 | * lcd library for ssd1306/ssd1309/sh1106 oled-display is distributed in the hope that it will be useful,
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 | * GNU General Public License for more details.
12 | *
13 | * You should have received a copy of the GNU General Public License
14 | * along with Foobar. If not, see .
15 | *
16 | * Diese Datei ist Teil von lcd library for ssd1306/ssd1309/sh1106 oled-display.
17 | *
18 | * lcd library for ssd1306/ssd1309/sh1106 oled-display ist Freie Software: Sie können es unter den Bedingungen
19 | * der GNU General Public License, wie von der Free Software Foundation,
20 | * Version 3 der Lizenz oder jeder späteren
21 | * veröffentlichten Version, weiterverbreiten und/oder modifizieren.
22 | *
23 | * lcd library for ssd1306/ssd1309/sh1106 oled-display wird in der Hoffnung, dass es nützlich sein wird, aber
24 | * OHNE JEDE GEWÄHRLEISTUNG, bereitgestellt; sogar ohne die implizite
25 | * Gewährleistung der MARKTFÄHIGKEIT oder EIGNUNG FÜR EINEN BESTIMMTEN ZWECK.
26 | * Siehe die GNU General Public License für weitere Details.
27 | *
28 | * Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
29 | * Programm erhalten haben. Wenn nicht, siehe .
30 | *
31 | * lcd.h
32 | *
33 | * Created by Michael Köhler on 22.12.16.
34 | * Copyright 2016 Skie-Systems. All rights reserved.
35 | *
36 | * lib for OLED-Display with ssd1306/ssd1309/sh1106-Controller
37 | * first dev-version only for I2C-Connection
38 | * at ATMega328P like Arduino Uno
39 | *
40 | * at GRAPHICMODE lib needs SRAM for display
41 | * DISPLAY-WIDTH * DISPLAY-HEIGHT + 2 bytes
42 | */
43 |
44 | #ifndef LCD_H
45 | #define LCD_H
46 |
47 | #ifdef __cplusplus
48 | extern "C" {
49 | #endif
50 |
51 | #if (__GNUC__ * 100 + __GNUC_MINOR__) < 303
52 | #error "This library requires AVR-GCC 3.3 or later, update to newer AVR-GCC compiler !"
53 | #endif
54 |
55 | #include
56 | #include
57 |
58 | /* TODO: define bus */
59 | #define I2C // I2C or SPI
60 | /* TODO: define displaycontroller */
61 | #define SH1106 // or SSD1306, check datasheet of your display
62 | /* TODO: define displaymode */
63 | #define TEXTMODE // TEXTMODE for only text to display,
64 | // GRAPHICMODE for text and graphic
65 | /* TODO: define font */
66 | #define FONT ssd1306oled_font// set font here, refer font-name at font.h/font.c
67 |
68 | /* TODO: define I2C-adress for display */
69 |
70 | // using 7-bit-adress for lcd-library
71 | // if you use your own library for twi check I2C-adress-handle
72 | #define LCD_I2C_ADR (0x78 >> 1) // 7 bit slave-adress without r/w-bit
73 | // r/w-bit are set/unset by library
74 | // e.g. 8 bit slave-adress:
75 | // 0x78 = adress 0x3C with cleared r/w-bit (write-mode)
76 |
77 |
78 | #ifdef I2C
79 | #include "i2c.h" // library for I2C-communication
80 | // if you want to use other lib for I2C
81 | // edit i2c_xxx commands in this library
82 | // i2c_start(), i2c_byte(), i2c_stop()
83 |
84 | #elif defined SPI
85 | // if you want to use your other lib/function for SPI replace SPI-commands
86 | #define LCD_PORT PORTB
87 | #define LCD_DDR DDRB
88 | #define RES_PIN PB0
89 | #define DC_PIN PB1
90 | #define CS_PIN PB2
91 |
92 | #endif
93 |
94 | #ifndef YES
95 | #define YES 1
96 | #endif
97 |
98 | #define NORMALSIZE 1
99 | #define DOUBLESIZE 2
100 |
101 | #define LCD_DISP_OFF 0xAE
102 | #define LCD_DISP_ON 0xAF
103 |
104 | #define WHITE 0x01
105 | #define BLACK 0x00
106 |
107 | #define DISPLAY_WIDTH 128
108 | #define DISPLAY_HEIGHT 64
109 |
110 |
111 |
112 | void lcd_command(uint8_t cmd[], uint8_t size); // transmit command to display
113 | void lcd_data(uint8_t data[], uint16_t size); // transmit data to display
114 | void lcd_init(uint8_t dispAttr);
115 | void lcd_home(void); // set cursor to 0,0
116 | void lcd_invert(uint8_t invert); // invert display
117 | void lcd_sleep(uint8_t sleep); // display goto sleep (power off)
118 | void lcd_set_contrast(uint8_t contrast); // set contrast for display
119 | void lcd_puts(const char* s); // print string, \n-terminated, from ram on screen (TEXTMODE)
120 | // or buffer (GRAPHICMODE)
121 | void lcd_puts_p(const char* progmem_s); // print string from flash on screen (TEXTMODE)
122 | // or buffer (GRAPHICMODE)
123 |
124 | void lcd_clrscr(void); // clear screen (and buffer at GRFAICMODE)
125 | void lcd_gotoxy(uint8_t x, uint8_t y); // set curser at pos x, y. x means character,
126 | // y means line (page, refer lcd manual)
127 | void lcd_goto_xpix_y(uint8_t x, uint8_t y); // set curser at pos x, y. x means pixel,
128 | // y means line (page, refer lcd manual)
129 | void lcd_putc(char c); // print character on screen at TEXTMODE
130 | // at GRAPHICMODE print character to buffer
131 | void lcd_charMode(uint8_t mode); // set size of chars
132 | void lcd_flip(uint8_t flipping); // flip display,
133 | // flipping == 0: no flip (normal mode)
134 | // == 1: flip horizontal & vertical
135 | // == 2: flip(mirrored) vertical
136 | // == 3: flip(mirrored) horizontal
137 | #if defined GRAPHICMODE
138 | uint8_t lcd_drawPixel(uint8_t x, uint8_t y, uint8_t color);
139 | uint8_t lcd_drawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t color);
140 | uint8_t lcd_drawRect(uint8_t px1, uint8_t py1, uint8_t px2, uint8_t py2, uint8_t color);
141 | uint8_t lcd_fillRect(uint8_t px1, uint8_t py1, uint8_t px2, uint8_t py2, uint8_t color);
142 | uint8_t lcd_drawCircle(uint8_t center_x, uint8_t center_y, uint8_t radius, uint8_t color);
143 | uint8_t lcd_fillCircle(uint8_t center_x, uint8_t center_y, uint8_t radius, uint8_t color);
144 | uint8_t lcd_drawBitmap(uint8_t x, uint8_t y, const uint8_t picture[], uint8_t width, uint8_t height, uint8_t color);
145 | void lcd_display(void); // copy buffer to display RAM
146 | void lcd_clear_buffer(void); // clear display buffer
147 | uint8_t lcd_check_buffer(uint8_t x, uint8_t y); // read a pixel value from the display buffer
148 | void lcd_display_block(uint8_t x, uint8_t line, uint8_t width); // display (part of) a display line
149 | #endif
150 |
151 | #ifdef __cplusplus
152 | }
153 | #endif
154 | #endif /* LCD_H */
155 |
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/main.c:
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1 | //****main.c****//
2 | #include "lcd.h"
3 |
4 |
5 | int main(void){
6 | lcd_init(LCD_DISP_ON); // init lcd and turn on
7 |
8 | lcd_puts("Hello World"); // put string from RAM to display (TEXTMODE) or buffer (GRAPHICMODE)
9 | lcd_gotoxy(0,2); // set cursor to first column at line 3
10 | lcd_puts_p(PSTR("String from flash")); // puts string form flash to display (TEXTMODE) or buffer (GRAPHICMODE)
11 | #if defined GRAPHICMODE
12 | lcd_drawCircle(64,32,7,WHITE); // draw circle to buffer white lines
13 | lcd_display(); // send buffer to display
14 | #endif
15 | for(;;){
16 | //main loop
17 | }
18 | return 0;
19 | }
20 |
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/oled.jpg:
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https://raw.githubusercontent.com/Sylaina/oled-display/d826069f1f61c7694b2b06e32c3939e53e93b031/oled.jpg
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/readme.md:
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1 | # OLED for AVR mikrocontrollers
2 | Library for oled-displays with SSD1306, SSD1309 or SH1106 display-controller connected with I2C or SPI at an AVR Atmel Atmega like Atmega328P.
3 |
4 |
5 |
6 | This library allows you to display text or/and graphic at oled-display.
7 | The library need less than 2 kilobytes flash-memory and 3 bytes sram in textmode, in graphicmode library need less than 3 kilobytes flash-memory and 1027 bytes static sram so you can use oled-displays e.g with Atmega48PA (only with textmode).
8 | Library is only tested with 128x64 Pixel display, lower resolution not tested but should work too.
9 |
10 | If you want to use your own I2C library you have to fit i2c-function at lcd-library.
11 | Settings for I2C-bus have to set at i2c.h
12 | Settings for display have to set at lcd.h
13 |
14 | If you want to use characters like e.g. ä set your compiler input-charset to utf-8 and your compiler exec-charset to iso-8859-15 (look at makefile line 115).
15 |
16 | Testcondition: Display: SSD1306 OLED, Compiler Optimizelevel: -Os, µC: Atmega328p @ 8 MHz internal RC
17 |
18 | Memory:
19 |
20 |
21 | Modul |
22 | Flash |
23 | Static RAM |
24 |
25 |
26 | I2C-Core |
27 | 220 Bytes |
28 | 0 Bytes |
29 |
30 |
31 | FONT |
32 | 660 Bytes |
33 | 0 Bytes |
34 |
35 |
36 | OLED (Text-Mode) |
37 | 1437 Bytes |
38 | 2 Bytes |
39 |
40 |
41 | OLED (Graphic-Mode) |
42 | 2561 Bytes |
43 | 1026 Bytes |
44 |
45 |
46 |
47 |
48 |
49 | Speed (print 20 charaters (1 line) in normal size to display):
50 |
51 |
52 |
53 | Mode |
54 | Time |
55 | I2C-Speed |
56 |
57 |
58 | OLED (Text-Mode) |
59 | 4.411 ms |
60 | 400 kHz |
61 |
62 |
63 | OLED (Text-Mode) |
64 | 15.384 ms |
65 | 100 kHz |
66 |
67 |
68 | OLED (Graphic-Mode) |
69 | 26.603 ms |
70 | 400 kHz |
71 |
72 |
73 | OLED (Graphic-Mode) |
74 | 96.294 ms |
75 | 100 kHz |
76 |
77 |
78 |
79 |
80 | example:
81 |
82 | ```c
83 | //****main.c****//
84 | #include "lcd.h"
85 |
86 |
87 | int main(void){
88 | lcd_init(LCD_DISP_ON); // init lcd and turn on
89 |
90 | lcd_puts("Hello World"); // put string from RAM to display (TEXTMODE) or buffer (GRAPHICMODE)
91 | lcd_gotoxy(0,2); // set cursor to first column at line 3
92 | lcd_puts_p(PSTR("String from flash")); // puts string form flash to display (TEXTMODE) or buffer (GRAPHICMODE)
93 | #if defined GRAPHICMODE
94 | lcd_drawCircle(64,32,7,WHITE); // draw circle to buffer
95 | lcd_display(); // send buffer to display
96 | #endif
97 | for(;;){
98 | //main loop
99 | }
100 | return 0;
101 | }
102 | ```
103 | example for chars with double height:
104 | ```c
105 | //****main.c****//
106 | #include "lcd.h"
107 |
108 | int main(void){
109 |
110 | lcd_init(LCD_DISP_ON);
111 | lcd_clrscr();
112 | lcd_set_contrast(0x00);
113 | lcd_gotoxy(4,1);
114 | lcd_puts("Normal Size");
115 | lcd_charMode(DOUBLESIZE);
116 | lcd_gotoxy(0,4);
117 | lcd_puts(" Double \r\n Size");
118 | lcd_charMode(NORMALSIZE);
119 |
120 | #ifdef GRAPHICMODE
121 | lcd_display();
122 | #endif
123 | for(;;){
124 | //main loop
125 | }
126 | return 0;
127 | }
128 | ```
129 |
130 |
131 |
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