├── .gitignore ├── COPYING ├── CanBusInterface.cpp ├── CanBusInterface.h ├── LeafCAN.h ├── LeafCAN.pde ├── LeafCanData.cpp ├── LeafCanData.h ├── README ├── RotaryEncoder.cpp ├── RotaryEncoder.h ├── flash.bat ├── hardware ├── CANMonitor_v1.zip └── CANMonitor_v2.zip └── setfuses.bat /.gitignore: -------------------------------------------------------------------------------- 1 | archive/* 2 | test/* 3 | *~ 4 | *.bak -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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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 | . -------------------------------------------------------------------------------- /CanBusInterface.cpp: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2014 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #include "LeafCAN.h" 26 | 27 | CanBusInterface::CanBusInterface() 28 | { 29 | m_LastCanMsgRxMs = 0; 30 | m_LastCanMsgTxMs = 0; 31 | 32 | m_CanMsgRx.cmd = CMD_RX; 33 | m_CanMsgRx.pt_data = m_CanDataRx; 34 | m_CanMsgTx.cmd = CMD_TX_DATA; 35 | m_CanMsgTx.pt_data = m_CanDataTx; 36 | } 37 | 38 | void CanBusInterface::Init() 39 | { 40 | m_LastCanReadStat = CAN_STAT_OK; 41 | m_LastCanWriteStat = CAN_STAT_OK; 42 | 43 | // Clock prescaler Reset SCL:don't need this unless CLKDIV8 is set in the low fuse 44 | // CLKPR = 0x80; CLKPR = 0x00; 45 | 46 | //- Pull-up on TxCAN & RxCAN one by one to use bit-addressing 47 | CAN_PORT_DIR &= ~(1< CAN_TIMEOUT) { 78 | m_LastCanReadStat = CAN_STAT_ACCEPT_TIMEOUT; 79 | return m_LastCanReadStat; 80 | } 81 | } 82 | } 83 | 84 | // --- Wait for Rx completed 85 | while((canstat=CAN.get_status(&m_CanMsgRx)) == CAN_STATUS_NOT_COMPLETED) { 86 | if ((m_LastCanReadStat == 3) || ((millis()-start) > CAN_TIMEOUT)) { // don't loop here if already timed out so we don't block encoder 87 | m_LastCanReadStat = CAN_STAT_COMPLETION_TIMEOUT; 88 | return m_LastCanReadStat; 89 | } 90 | } 91 | 92 | if (dumpit || (canstat == CAN_STATUS_ERROR)) { 93 | m_LastCanReadStat = CAN_STAT_ERROR; 94 | } 95 | else { 96 | m_LastCanReadStat = CAN_STAT_OK; 97 | m_LastCanMsgRxMs = millis(); 98 | } 99 | return m_LastCanReadStat; 100 | } 101 | 102 | 103 | uint8_t CanBusInterface::Write() 104 | { 105 | uint8_t canstat; 106 | unsigned long start = millis(); 107 | 108 | while (CAN.cmd(&m_CanMsgTx) != CAN_CMD_ACCEPTED) { 109 | if ((millis()-start) > CAN_TIMEOUT) { 110 | m_LastCanWriteStat = CAN_STAT_ACCEPT_TIMEOUT; 111 | return m_LastCanWriteStat; 112 | } 113 | } 114 | 115 | // --- Wait for Tx completed 116 | while ((canstat=CAN.get_status(&m_CanMsgRx)) == CAN_STATUS_NOT_COMPLETED) { 117 | if ((millis()-start) > CAN_TIMEOUT) { 118 | m_LastCanWriteStat = CAN_STAT_COMPLETION_TIMEOUT; 119 | return m_LastCanWriteStat; 120 | } 121 | } 122 | 123 | if (canstat == CAN_STATUS_ERROR) { 124 | m_LastCanWriteStat = CAN_STAT_ERROR; 125 | } 126 | else { 127 | m_LastCanWriteStat = CAN_STAT_OK; 128 | m_LastCanMsgTxMs = millis(); 129 | } 130 | 131 | return m_LastCanWriteStat; 132 | } 133 | 134 | -------------------------------------------------------------------------------- /CanBusInterface.h: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2014 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #ifndef _CANBUSINTERFACE_H_ 26 | #define _CANBUSINTERFACE_H_ 27 | #include 28 | 29 | // for m_LastReadStat/m_LastWriteStat 30 | #define CAN_STAT_OK 0 31 | #define CAN_STAT_ERROR 1 32 | #define CAN_STAT_ACCEPT_TIMEOUT 2 33 | #define CAN_STAT_COMPLETION_TIMEOUT 3 34 | 35 | class CanBusInterface { 36 | st_cmd_t m_CanMsgRx; // rx message 37 | st_cmd_t m_CanMsgTx; // tx message 38 | uint8_t m_CanDataRx[8]; // rx data buffer 39 | uint8_t m_CanDataTx[8]; // tx data buffer 40 | 41 | uint8_t m_LastCanReadStat; // CAN_STAT_XX 42 | uint8_t m_LastCanWriteStat; // CAN_STAT_XX 43 | public: 44 | unsigned long m_LastCanMsgRxMs; // millis() when the last Rx msg was received 45 | unsigned long m_LastCanMsgTxMs; // millis() when the last Rx msg was sent 46 | 47 | 48 | CanBusInterface(); 49 | 50 | void Init(); 51 | 52 | uint8_t Read(); 53 | uint8_t Write(); 54 | 55 | st_cmd_t *GetMsgRx() { return &m_CanMsgRx; } 56 | st_cmd_t *GetMsgTx() { return &m_CanMsgTx; } 57 | 58 | uint8_t GetLastReadStat() { return m_LastCanReadStat; } 59 | uint8_t GetLastWriteStat() { return m_LastCanWriteStat; } 60 | 61 | uint8_t IsActive() { return (((millis()-m_LastCanMsgRxMs) <= CAN_TIMEOUT) ? 1 : 0); } 62 | }; 63 | 64 | #endif // _CANBUSINTERFACE_H_ 65 | -------------------------------------------------------------------------------- /LeafCAN.h: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2014 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #ifndef _LEAFCAN_H_ 26 | #define _LEAFCAN_H_ 27 | 28 | #define VER_STR "v2.01" 29 | 30 | // 31 | // configuration 32 | // 33 | 34 | // support Adafruit 16x2 OLED display http://www.adafruit.com/products/823 35 | // requires Adafruit's library: https://github.com/ladyada/Adafruit_CharacterOLED 36 | //#define ADA_OLED 37 | 38 | // Barbouri's V2oled3 board with RGB LED encoder 39 | // comment this out for V2 hardware 40 | #define V2O3 41 | //#define BREADBOARD // don't use - lincomatic's test rig 42 | 43 | #ifdef BREADBOARD 44 | #define I2CLCD // adafruit I2C LCD backpack 45 | #endif 46 | 47 | //#define SERIAL // serial logging 48 | 49 | #ifndef ADA_OLED 50 | #define BACKLIGHT_PIN 15 // PB7 51 | #define CONTRAST_PIN 36 // PE4 52 | #endif 53 | 54 | #ifdef V2O3 55 | #undef CONTRAST_PIN 56 | #define DISP_RW_PIN 39 //PE7 57 | #define INVERT_ENC_BTN 58 | #define GLED_PIN 19 // PC3 59 | #define BLED_PIN 20 // PC4 60 | #define RLED_PIN 21 // PC5 61 | #endif 62 | 63 | #define BACKLIGHT_TIMEOUT 30000 // turn off backlight after CAN bus idle for (ms) 64 | #define SERIAL_BAUD 115200 65 | #define LCD_UPDATE_MS 250 // update interval for LCD in ms 66 | 67 | // the Leaf's fuel bar display isn't tied to SOC, which I find very confusing, 68 | // because this means that as the battery ages or temperature changes, the bars 69 | // correspond to less 70 | // stored KWh in the battery. When FIXED_FUEL_BARS is defined, instead of 71 | // displaying the same fuel bars as on the dash, the fuel display is directly 72 | // tied to Gids. My formula arbitrarily assigns 13 = 100% charge = 281 gids, 73 | // and the transition from 1 -> 0 is at 24 gids, which is the transition to 74 | // Very Low Battery. When the battery gets this low, it's kind of useless to 75 | // use something as coarse as fuel bars, so when it displays 0, it's time to 76 | // look directly at the raw Gid/SOC values. 77 | // the fuel bars are displayed w/ 1 decimal place (e.g 9.2) so you always know 78 | // how "full" the current bar is 79 | //n.b. FIXED_FUEL_BARS is no longer a #define. It's always enabled 80 | // but m_GOMFuelBars is available for use in Screen() functions 81 | 82 | /* 83 | rotary encoder configuration. 84 | This code only works if ENC_A and ENC_B are connected to pins 0,1 of the selected port 85 | if they are not pins 0,1 the bits need to be shifted to bits 0 and 1 in the 86 | line 87 | old_AB |= ( ENC_PIN & 0x03 ); //add current state 88 | */ 89 | #define ENC_BIT_A (1 << 0) 90 | #define ENC_BIT_B (1 << 1) 91 | #define ENC_BIT_BTN (1 << 2) 92 | #if defined(BREADBOARD)||defined(V2O3) 93 | #define ENC_DDR DDRC 94 | #define ENC_PIN PINC 95 | #define ENC_PORT PORTC 96 | #else 97 | #define ENC_DDR DDRA 98 | #define ENC_PIN PINA 99 | #define ENC_PORT PORTA 100 | #endif 101 | 102 | // for DTE screen 103 | #define DEF_DPKWH10_LOW 20 // default lowest dist/kwh*10 for DTE 104 | #define DEF_DPKWH10_INCR 10 // default dist/kwh*10 increment for DTE 105 | 106 | #define SCNIDX_INFO 0 107 | #define SCNIDX_DTE 1 108 | #define SCNIDX_VA 2 109 | #define SCNIDX_BATT_TEMP 3 110 | #define SCNIDX_CP_VOLT 4 111 | #define SCNIDX_SOC_CAP 5 112 | #define SCREEN_CNT 6 113 | 114 | #define CAN_REQ_INTERVAL 500 // # ms between active CAN requests must be > REQ_INTERVAL_7BB 115 | #define REQ_INTERVAL_7BB 20 // # ms between 7BB requests 116 | 117 | #define CAN_TIMEOUT 500 // ms - assume CAN bus is off when exceeded 118 | 119 | #define DEFAULT_TEMP_UNIT 'C' 120 | #define DEFAULT_DTE_TYPE 'V' 121 | 122 | // 123 | // constants 124 | // 125 | #define KW_FACTOR 7473L // 80 is from ingineer, surfingslovak prefers 74.73 126 | #define GIDS_LB 49 // low batt 127 | #define GIDS_VLB 24 // very low batt 128 | #define GIDS_TURTLE 6 // really varies from 4-6 ... 129 | 130 | // EEPROM offsets 131 | #define EOFS_TEMP_UNIT 0 // C/F 132 | #define EOFS_DTE_TYPE 1 // L/V/T 133 | 134 | 135 | 136 | // 137 | // includes 138 | // 139 | 140 | #if ARDUINO >= 100 141 | #include "Arduino.h" 142 | #else 143 | #include "WProgram.h" 144 | #endif 145 | 146 | #include "RotaryEncoder.h" 147 | #include "CanBusInterface.h" 148 | #include "LeafCanData.h" 149 | 150 | // 151 | // globals 152 | // 153 | extern LeafCanData g_LeafCanData; 154 | extern CanBusInterface g_CanBus; 155 | 156 | #ifdef BACKLIGHT_PIN 157 | extern uint8_t g_Brightness; 158 | 159 | //0=off 255=max bright 160 | void setBackLight(uint8_t brightness); 161 | #endif // BACKLIGHT_PIN 162 | 163 | 164 | 165 | #endif // _LEAFCAN_H_ 166 | -------------------------------------------------------------------------------- /LeafCAN.pde: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | 2.0 changes 4 | -> reduce usage of floats as much as possible, since no FPU 5 | 6 | * LeafCAN Firmware 7 | * 8 | * Copyright (c) 2012-2014 Sam C. Lin 9 | * Maintainer: SCL 10 | 11 | * This file is part of LeafCAN 12 | 13 | * LeafCAN is free software; you can redistribute it and/or modify 14 | * it under the terms of the GNU General Public License as published by 15 | * the Free Software Foundation; either version 3, or (at your option) 16 | * any later version. 17 | 18 | * LeafCAN is distributed in the hope that it will be useful, 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 | * GNU General Public License for more details. 22 | 23 | * You should have received a copy of the GNU General Public License 24 | * along with LeafCAN; see the file COPYING. If not, write to the 25 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 26 | * Boston, MA 02111-1307, USA. 27 | */ 28 | #include 29 | #include 30 | #include "LeafCAN.h" 31 | 32 | // 33 | // globals 34 | // 35 | 36 | LeafCanData g_LeafCanData; 37 | CanBusInterface g_CanBus; 38 | 39 | #ifdef ADA_OLED 40 | // rs/rw/enable/d4/d5/d6/d7 41 | #include 42 | Adafruit_CharacterOLED g_Lcd(37,DISP_RW_PIN,38,11,12,13,14); // PE5/PE7/PE6/PB3/PB4/PB5/PB6 43 | #elif defined(BREADBOARD) 44 | #include 45 | #include 46 | LiquidTWI2 g_Lcd(0x20,1); 47 | #else 48 | #include 49 | LiquidCrystal g_Lcd(37,38,11,12,13,14); // PE5/PE6/PB3/PB4/PB5/PB6 50 | //LiquidCrystal g_Lcd(21,20,16,17,18,19); // PC5/PC4/PC0/PC1/PC2/PC3 51 | //LiquidCrystal g_Lcd(37,38,11,12,13,14); // PE5/PE6/PB3/PB4/PB5/PB6 52 | #endif // ADA_OLED 53 | 54 | uint8_t g_LogEnabled = 0; 55 | uint8_t g_LogOnly = 0; 56 | uint8_t g_LcdEnabled = 1; 57 | 58 | uint8_t g_Brightness = 0; 59 | 60 | unsigned long g_LastScreenUpdateMs=0; 61 | int8_t g_CurScreenIdx = SCNIDX_INFO; 62 | 63 | #include "RotaryEncoder.h" 64 | RotaryEncoder g_RotEnc; 65 | //encoder stuff 66 | int8_t g_LastBtnState = ENC_BIT_BTN; // 0=pressed 67 | int8_t g_LastCount = 0; 68 | 69 | void LcdPrint_P(const prog_char *s) 70 | { 71 | char buf[17]; 72 | strcpy_P(buf,s); 73 | g_Lcd.print(buf); 74 | } 75 | 76 | 77 | // print 2-digit number 100 = A0, 113 = B3, etc 78 | char *SPrintDist(int dist,char *buf) 79 | { 80 | int i; 81 | if (dist < 0) { 82 | buf[0] = '.'; 83 | buf[1] = '0' - dist; 84 | } 85 | else { 86 | i=dist/10; 87 | if (i == 0) { 88 | buf[0] = ' '; 89 | } 90 | else if (i > 9) { 91 | buf[0] = 'A' + (i-10); 92 | } 93 | else { 94 | buf[0] = i + '0'; 95 | } 96 | buf[1] = (dist % 10) + '0'; 97 | } 98 | buf[2] = 0; 99 | return buf; 100 | } 101 | 102 | // distPerKwhx10 = dist/KWh * 10 103 | // returns distance to whMin 104 | // if return value is negative, it's multipied by 10 (meaning it's < 1) 105 | int DistRem(int32_t whRem,int32_t whMin,int distPerKwhx10) 106 | { 107 | if (whRem < whMin) return 0; 108 | else { 109 | int32_t t = (whRem-whMin)*((int32_t)distPerKwhx10); 110 | int32_t drem = (t+5000L)/10000; 111 | if (drem <= 1) { 112 | int32_t drem10 = (t+500L)/1000; /// distrem * 10 113 | if (drem10 < 10) { 114 | drem = -drem10; 115 | } 116 | } 117 | return (int) drem; 118 | } 119 | } 120 | 121 | 122 | // KWh gids fixedbars 123 | // volts soc kw 124 | uint8_t InfoScreen(uint8_t force) 125 | { 126 | uint8_t rc = 1; 127 | char sf1[10],sf2[10],sf3[10]; 128 | char line[17]; 129 | int w,f; 130 | 131 | // top line: KWh gids fixedbars 132 | if (force || g_LeafCanData.DirtyBitsSet(DBF_WH_REMAINING |DBF_GIDS|DBF_FIXED_FUEL_BARS)) { 133 | rc = 0; 134 | g_LeafCanData.ClearDirtyBits(DBF_WH_REMAINING |DBF_GIDS|DBF_FIXED_FUEL_BARS); 135 | 136 | int32_t wh = g_LeafCanData.m_Wh; 137 | if (wh >= 10000) { 138 | // nn.n 139 | wh += 50; 140 | sprintf(sf1,"%2d.%d",(int)(wh/1000),(int)((wh%1000)/100)); 141 | } 142 | else if (wh >= 1000) { 143 | // n.nn 144 | wh += 5; 145 | sprintf(sf1,"%d.%02d",(int)(wh/1000),(int)((wh%1000)/10)); 146 | } 147 | else { 148 | // .nnn 149 | sprintf(sf1,".%03d",(int)(wh % 1000)); 150 | } 151 | 152 | // nn.n 153 | sprintf(sf2,"%2d.%d",g_LeafCanData.m_FixedFuelBars/10,g_LeafCanData.m_FixedFuelBars%10); 154 | sprintf(line,"%s %3d %s",sf1,g_LeafCanData.m_Gids,sf2); 155 | 156 | g_Lcd.setCursor(0,0); 157 | g_Lcd.print(line); 158 | } 159 | // bottom line: volts soc kw 160 | if (force || g_LeafCanData.DirtyBitsSet(DBF_PACK_VOLTS|DBF_SOC|DBF_WATTS)) { 161 | rc = 0; 162 | g_LeafCanData.ClearDirtyBits(DBF_PACK_VOLTS|DBF_SOC|DBF_WATTS); 163 | 164 | // nnn.n 165 | sprintf(sf1,"%3d.%c",g_LeafCanData.m_PackVolts/2,(g_LeafCanData.m_PackVolts & 1) ? '5' : '0'); 166 | // nnn.n 167 | sprintf(sf2,"%3d.%d",g_LeafCanData.m_SOC/10,g_LeafCanData.m_SOC%10); 168 | 169 | int32_t w = g_LeafCanData.m_W; 170 | if (w >= 10000) { 171 | // nn.n 172 | w += 50; 173 | sprintf(sf3,"%2d.%d",(int)(w/1000),(int)((w%1000)/100)); 174 | } 175 | else if (w <= -10000) { 176 | w -= 500; 177 | // b-nn 178 | sprintf(sf3,"%4d",(int)(w/1000)); 179 | } 180 | else if (w < 0) { 181 | // -n.n 182 | w -= 50; 183 | int wd1000 = w/1000; 184 | if (wd1000 == 0) { 185 | sprintf(sf3,"-0.%d",-(int)((w%1000)/100)); 186 | } 187 | else { 188 | sprintf(sf3,"%2d.%d",wd1000,-(int)((w%1000)/100)); 189 | } 190 | } 191 | else { 192 | // n.nn 193 | w += 5; 194 | sprintf(sf3,"%d.%02d",(int)(w/1000),(int)((w%1000)/10)); 195 | } 196 | 197 | sprintf(line,"%s %s %s",sf1,sf2,sf3); 198 | g_Lcd.setCursor(0,1); 199 | g_Lcd.print(line); 200 | } 201 | 202 | return rc; 203 | } 204 | 205 | // DTE screen 206 | // dist/kwh dist/kwh dist/kwh dist/kwh dist/kwh DTEtype 207 | // dist dist dist dist dist 208 | // 209 | // DTEtype: = 'L' = low batt, 'V' = very low batt, 'T' = turtle 210 | uint8_t DTEScreen(uint8_t force) 211 | { 212 | if (force || g_LeafCanData.DirtyBitsSet(DBF_WH_REMAINING)) { 213 | g_LeafCanData.ClearDirtyBits(DBF_WH_REMAINING); 214 | 215 | int32_t whmin; 216 | if (g_LeafCanData.m_CurDteType == DTE_TYPE_LB) whmin = g_LeafCanData.m_WhL; 217 | else if (g_LeafCanData.m_CurDteType == DTE_TYPE_VLB) whmin = g_LeafCanData.m_WhV; 218 | else whmin = g_LeafCanData.m_WhT; 219 | int32_t wh = g_LeafCanData.m_Wh; 220 | int32_t dpkw100 = g_LeafCanData.m_DpKWh10_Low; 221 | int32_t dpkw101 = dpkw100 + g_LeafCanData.m_DpKWh10_Incr; 222 | int32_t dpkw102 = dpkw101 + g_LeafCanData.m_DpKWh10_Incr; 223 | int32_t dpkw103 = dpkw102 + g_LeafCanData.m_DpKWh10_Incr; 224 | int32_t dpkw104 = dpkw103 + g_LeafCanData.m_DpKWh10_Incr; 225 | 226 | char distrem0[3],distrem1[3],distrem2[3],distrem3[3],distrem4[3]; 227 | SPrintDist(DistRem(wh,whmin,dpkw100),distrem0); 228 | SPrintDist(DistRem(wh,whmin,dpkw101),distrem1); 229 | SPrintDist(DistRem(wh,whmin,dpkw102),distrem2); 230 | SPrintDist(DistRem(wh,whmin,dpkw103),distrem3); 231 | SPrintDist(DistRem(wh,whmin,dpkw104),distrem4); 232 | 233 | char line[17]; 234 | sprintf(line,"%2d %2d %2d %2d %2d %c",(int)dpkw100,(int)dpkw101,(int)dpkw102,(int)dpkw103,(int)dpkw104,g_LeafCanData.m_CurDteType); 235 | g_Lcd.setCursor(0,0); 236 | g_Lcd.print(line); 237 | 238 | sprintf(line,"%s %s %s %s %s",distrem0,distrem1,distrem2,distrem3,distrem4); 239 | g_Lcd.setCursor(0,1); 240 | g_Lcd.print(line); 241 | 242 | return 0; 243 | } 244 | else { 245 | return 1; 246 | } 247 | } 248 | 249 | uint8_t VAScreen(uint8_t force) 250 | { 251 | char line[17]; 252 | if (force || g_LeafCanData.DirtyBitsSet(DBF_PACK_AMPS|DBF_PACK_VOLTS)) { 253 | g_LeafCanData.ClearDirtyBits(DBF_PACK_AMPS|DBF_PACK_VOLTS); 254 | // nnn.n 255 | sprintf(line,"%3d.%cV",(int)(g_LeafCanData.m_PackVolts/2),(g_LeafCanData.m_PackVolts & 1) ? '5' : '0'); 256 | g_Lcd.setCursor(0,0); 257 | g_Lcd.print(line); 258 | int16_t amps = -g_LeafCanData.m_PackAmps; 259 | sprintf(line,"%3d.%cA",(int)(amps/2),(amps % 2) ? '5' : '0'); 260 | g_Lcd.setCursor(0,1); 261 | g_Lcd.print(line); 262 | 263 | return 0; 264 | } 265 | else { 266 | return 1; 267 | } 268 | } 269 | 270 | int CtoF(int c) 271 | { 272 | return (c * 9)/5 + 32; 273 | } 274 | 275 | uint8_t BattTempScreen(uint8_t force) 276 | { 277 | if (force || g_LeafCanData.DirtyBitsSet(DBF_BATT_TEMP)) { 278 | g_LeafCanData.ClearDirtyBits(DBF_BATT_TEMP); 279 | 280 | char line[17]; 281 | g_Lcd.setCursor(0,0); 282 | sprintf(line,"T1 T2 T3 T4 %c",g_LeafCanData.m_TempUnit); 283 | g_Lcd.print(line); 284 | if (g_LeafCanData.m_TempUnit == 'C') { 285 | sprintf(line,"%2d %2d %2d %2d",(int)g_LeafCanData.m_BattTemp1,(int)g_LeafCanData.m_BattTemp2,(int)g_LeafCanData.m_BattTemp3,(int)g_LeafCanData.m_BattTemp4); 286 | } 287 | else { 288 | sprintf(line,"%-3d %-3d %-3d %-3d",CtoF(g_LeafCanData.m_BattTemp1),CtoF(g_LeafCanData.m_BattTemp2),CtoF(g_LeafCanData.m_BattTemp3),CtoF(g_LeafCanData.m_BattTemp4)); 289 | } 290 | g_Lcd.setCursor(0,1); 291 | g_Lcd.print(line); 292 | 293 | return 0; 294 | } 295 | else { 296 | return 1; 297 | } 298 | } 299 | 300 | uint8_t CellPairVoltScreen(uint8_t force) 301 | { 302 | if (force || g_LeafCanData.DirtyBitsSet(DBF_CP_VOLTS)) { 303 | g_LeafCanData.ClearDirtyBits(DBF_CP_VOLTS); 304 | 305 | char line[17]; 306 | g_Lcd.setCursor(0,0); 307 | g_Lcd.print("Min Max Diff m"); 308 | sprintf(line,"%4d %4d %4d V",(int)g_LeafCanData.m_CPVmin,(int)g_LeafCanData.m_CPVmax,(int)(g_LeafCanData.m_CPVmax-g_LeafCanData.m_CPVmin)); 309 | g_Lcd.setCursor(0,1); 310 | g_Lcd.print(line); 311 | 312 | return 0; 313 | } 314 | else { 315 | return 1; 316 | } 317 | } 318 | 319 | uint8_t SocCapScreen(uint8_t force) 320 | { 321 | if (force || g_LeafCanData.DirtyBitsSet(DBF_SOC_CAP)) { 322 | g_LeafCanData.ClearDirtyBits(DBF_SOC_CAP); 323 | 324 | char line[17]; 325 | 326 | sprintf(line,"SOC %2d.%04d%%",(int)(g_LeafCanData.m_SOC32/10000),(int)(g_LeafCanData.m_SOC32 % 10000)); 327 | g_Lcd.setCursor(0,0); 328 | g_Lcd.print(line); 329 | sprintf(line,"%2d.%04dAh %2d.%02d%%",(int)(g_LeafCanData.m_PackCap/10000),(int)(g_LeafCanData.m_PackCap % 10000), 330 | (int)(g_LeafCanData.m_PackHealth/100),(int)(g_LeafCanData.m_PackHealth % 100)); 331 | g_Lcd.setCursor(0,1); 332 | g_Lcd.print(line); 333 | return 0; 334 | } 335 | else { 336 | return 1; 337 | } 338 | } 339 | 340 | // return 0 if screen redrawn 341 | uint8_t DrawScreen(uint8_t force=0) 342 | { 343 | uint8_t rc; 344 | if (g_CurScreenIdx == SCNIDX_INFO) { 345 | rc = InfoScreen(force); 346 | } 347 | else if (g_CurScreenIdx == SCNIDX_DTE) { 348 | rc = DTEScreen(force); 349 | } 350 | else if (g_CurScreenIdx == SCNIDX_VA) { 351 | rc = VAScreen(force); 352 | } 353 | else if (g_CurScreenIdx == SCNIDX_BATT_TEMP) { 354 | rc = BattTempScreen(force); 355 | } 356 | else if (g_CurScreenIdx == SCNIDX_CP_VOLT) { 357 | rc = CellPairVoltScreen(force); 358 | } 359 | else { // SCNIDX_SOC_CAP 360 | rc = SocCapScreen(force); 361 | } 362 | 363 | return rc; 364 | } 365 | 366 | 367 | //0=off 255=max bright 368 | void setBackLight(uint8_t brightness) 369 | { 370 | #ifdef BACKLIGHT_PIN 371 | // analogWrite(BACKLIGHT_PIN,brightness); 372 | digitalWrite(BACKLIGHT_PIN,brightness ? HIGH : LOW); 373 | #else 374 | if (brightness) g_Lcd.display(); 375 | else g_Lcd.noDisplay(); 376 | #endif 377 | 378 | g_Brightness = brightness; 379 | } 380 | 381 | #ifdef CONTRAST_PIN 382 | //0=low 255=max 383 | void setContrast(uint8_t contrast) 384 | { 385 | analogWrite(CONTRAST_PIN,contrast); 386 | } 387 | #endif // CONTRAST_PIN 388 | 389 | void setup() 390 | { 391 | #if defined(DISP_RW_PIN) && !defined(ADA_OLED) 392 | // for V203 board with LCD only ... RW pin needs to be pulled low 393 | // for LCD, since it isn't pulled low by hardware. 394 | pinMode(DISP_RW_PIN,OUTPUT); 395 | digitalWrite(DISP_RW_PIN,LOW); 396 | #endif 397 | 398 | g_Lcd.begin(16,2); 399 | g_Lcd.setCursor(0,0); 400 | LcdPrint_P(PSTR("LeafCAN ")); 401 | g_Lcd.print(VER_STR); 402 | g_Lcd.setCursor(0,1); 403 | LcdPrint_P(PSTR("by Lincomatic")); 404 | 405 | #ifdef RLED_PIN 406 | pinMode(RLED_PIN,OUTPUT); 407 | digitalWrite(RLED_PIN,HIGH); // turn off 408 | #endif 409 | #ifdef GLED_PIN 410 | pinMode(GLED_PIN,OUTPUT); 411 | digitalWrite(GLED_PIN,HIGH); 412 | #endif 413 | #ifdef BLED_PIN 414 | pinMode(BLED_PIN,OUTPUT); 415 | digitalWrite(BLED_PIN,HIGH); 416 | #endif 417 | 418 | g_LastScreenUpdateMs = millis(); 419 | /* Setup encoder pins */ 420 | g_RotEnc.Setup(); 421 | 422 | 423 | #ifdef BACKLIGHT_PIN 424 | pinMode(BACKLIGHT_PIN,OUTPUT); 425 | #endif 426 | setBackLight(255); 427 | #ifdef CONTRAST_PIN 428 | pinMode(CONTRAST_PIN,OUTPUT); 429 | setContrast(255); 430 | //digitalWrite( CONTRAST_PIN, LOW); 431 | //pinMode( CONTRAST_PIN, INPUT ); // now we're tri-stated 432 | #endif // CONTRAST_PIN 433 | 434 | 435 | 436 | // delay(2000); 437 | // g_Lcd.setCursor(0,1); 438 | // LcdPrint_P(PSTR("Awaiting CAN....")); 439 | 440 | g_CanBus.Init(); 441 | #ifdef SERIAL 442 | Serial.begin(SERIAL_BAUD); 443 | #endif 444 | } 445 | 446 | void ServiceEncoder() 447 | { 448 | int8_t count,btnstate; 449 | 450 | count = g_RotEnc.Read(&btnstate); 451 | if (count != g_LastCount) { 452 | g_CurScreenIdx += count; 453 | while (g_CurScreenIdx > SCREEN_CNT-1) g_CurScreenIdx -= SCREEN_CNT; 454 | while (g_CurScreenIdx < 0) g_CurScreenIdx += SCREEN_CNT; 455 | g_LastScreenUpdateMs = millis()-1000; 456 | g_Lcd.clear(); 457 | DrawScreen(1); 458 | g_RotEnc.ResetCount(); 459 | g_LastCount = 0; 460 | } 461 | 462 | /* encoder button */ 463 | if (btnstate != g_LastBtnState) { 464 | if ( 465 | #ifdef INVERT_ENC_BTN 466 | ! 467 | #endif 468 | btnstate 469 | ) { // released 470 | if (!g_Brightness && ((millis()-g_CanBus.m_LastCanMsgRxMs) >= BACKLIGHT_TIMEOUT)) { 471 | // can bus idle and backlight off 472 | // turn it on for a few sec 473 | g_CanBus.m_LastCanMsgRxMs = millis(); 474 | setBackLight(255); 475 | } 476 | else { 477 | if (g_CurScreenIdx == SCNIDX_DTE) { 478 | char dt; 479 | if (g_LeafCanData.m_CurDteType == DTE_TYPE_LB) dt = DTE_TYPE_VLB; 480 | else if (g_LeafCanData.m_CurDteType == DTE_TYPE_VLB) dt = DTE_TYPE_TURTLE; 481 | else dt = DTE_TYPE_LB; 482 | g_LeafCanData.SetDteType(dt); 483 | DrawScreen(1); 484 | } 485 | else if (g_CurScreenIdx == SCNIDX_BATT_TEMP) { 486 | g_LeafCanData.SetTempUnit((g_LeafCanData.m_TempUnit == TEMP_UNIT_C) ? TEMP_UNIT_F : TEMP_UNIT_C); 487 | DrawScreen(1); 488 | } 489 | } 490 | } 491 | // Serial.println(btnstate ? "btnrelease" : "btnpress"); 492 | } 493 | g_LastBtnState = btnstate; 494 | } 495 | 496 | void loop() 497 | { 498 | ServiceEncoder(); 499 | 500 | uint8_t cbrc; 501 | if (!(cbrc=g_CanBus.Read())) { 502 | if (!g_Brightness) { 503 | setBackLight(255); 504 | } 505 | 506 | #ifdef SERIAL 507 | if (g_LogEnabled) { 508 | st_cmd_t *rxmsg = g_CanBus.GetMsgRx(); 509 | uint8_t msg[11]; 510 | msg[1] = (uint8_t) rxmsg->id.std; 511 | msg[2] = (uint8_t) (rxmsg->id.std >> 8); 512 | msg[2] |= (rxmsg->dlc << 4); 513 | msg[0] = msg[1] ^ msg[2] ^ 0x53; 514 | memcpy(msg+3,rxmsg->pt_data,rxmsg->dlc); 515 | for (int8_t i=rxmsg->dlc;i < 8;i++) 516 | msg[3+i] = 0xff; 517 | Serial.write(msg,sizeof(msg)); 518 | } 519 | #endif // SERIAL 520 | 521 | uint8_t prc = g_LeafCanData.ProcessRxMsg(g_CanBus.GetMsgRx()); 522 | #ifdef RLED_PIN 523 | if (!prc && g_LeafCanData.DirtyBitsSet(DBF_PACK_AMPS)) { 524 | if (g_LeafCanData.m_PackAmps < -6) { // consumption 525 | // n.b. need to rewrite using DDRx instead 526 | digitalWrite(RLED_PIN,LOW); 527 | digitalWrite(GLED_PIN,HIGH); 528 | digitalWrite(BLED_PIN,HIGH); 529 | } 530 | else if (g_LeafCanData.m_PackAmps > 1) { // regen 531 | digitalWrite(RLED_PIN,HIGH); 532 | digitalWrite(GLED_PIN,LOW); 533 | digitalWrite(BLED_PIN,HIGH); 534 | } 535 | else { // idle 536 | digitalWrite(RLED_PIN,HIGH); 537 | digitalWrite(GLED_PIN,HIGH); 538 | digitalWrite(BLED_PIN,LOW); 539 | } 540 | } 541 | #endif 542 | unsigned long ms = millis(); 543 | if (!prc && ((ms - g_LastScreenUpdateMs) > LCD_UPDATE_MS)) { // processed a message 544 | uint8_t src = DrawScreen(); 545 | if (!src) { 546 | g_LastScreenUpdateMs = ms; 547 | } 548 | } 549 | 550 | if ((ms-g_LeafCanData.m_Last7BBreqTime) > CAN_REQ_INTERVAL) { 551 | uint8_t group; 552 | switch(g_CurScreenIdx) { 553 | case SCNIDX_SOC_CAP: 554 | group = 1; 555 | break; 556 | case SCNIDX_CP_VOLT: 557 | group = 3; 558 | break; 559 | case SCNIDX_BATT_TEMP: 560 | group = 4; 561 | break; 562 | default: 563 | group = REQ_GROUP_INVALID; 564 | } 565 | 566 | if (group != REQ_GROUP_INVALID) { 567 | g_LeafCanData.Req79B(group); 568 | } 569 | } 570 | 571 | g_LeafCanData.ReqNext7BBFrame(); 572 | } 573 | else { 574 | if (cbrc > 1) { // timed out CAN read 575 | if (g_Brightness && ((millis()-g_CanBus.m_LastCanMsgRxMs) >= BACKLIGHT_TIMEOUT)) { 576 | g_LeafCanData.SaveEEPROM(); 577 | setBackLight(0); 578 | #ifdef RLED_PIN 579 | digitalWrite(RLED_PIN,HIGH); // turn off 580 | digitalWrite(GLED_PIN,HIGH); // turn off 581 | digitalWrite(BLED_PIN,HIGH); // turn off 582 | #endif 583 | } 584 | } 585 | } 586 | } 587 | 588 | 589 | -------------------------------------------------------------------------------- /LeafCanData.cpp: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2013 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #include 26 | #include "LeafCAN.h" 27 | 28 | LeafCanData::LeafCanData() 29 | { 30 | m_DirtyBits = 0; 31 | /* 32 | m_PackVolts = 0; 33 | m_PackAmps = 0; 34 | m_W = 0; 35 | m_SOC = 0; 36 | m_GOMFuelBars = 0; 37 | m_Gids = 0; 38 | m_BatTemp1 = 0; 39 | m_BatTemp2 = 0; 40 | m_BatTemp3 = 0; 41 | m_BatTemp4 = 0; 42 | m_CPVmin = 0; 43 | m_CPVmax = 0; 44 | m_CPVavg = 0; 45 | m_SOC32 = 0; 46 | m_PackCap = 0; 47 | */ 48 | 49 | m_Cur7BBFrameCnt = 0; 50 | m_Cur7BBReqFrameIdx = 255; 51 | 52 | // calculated constants 53 | m_WhL = ((((int32_t)GIDS_LB) * KW_FACTOR)+50L) / 100L; 54 | m_WhV = ((((int32_t)GIDS_VLB) * KW_FACTOR)+50L) / 100L; 55 | m_WhT = ((((int32_t)GIDS_TURTLE) * KW_FACTOR)+50L) / 100L; 56 | 57 | // startup settings 58 | m_DpKWh10_Low = DEF_DPKWH10_LOW; // lowest dist/KWh * 10; 59 | m_DpKWh10_Incr = DEF_DPKWH10_INCR; // DpKWh10 increment 60 | m_CurDteType = EEPROM.read(EOFS_DTE_TYPE); 61 | if (!IsValidDteType(m_CurDteType)) m_CurDteType = DEFAULT_DTE_TYPE; 62 | m_TempUnit = EEPROM.read(EOFS_TEMP_UNIT); 63 | if (!IsValidTempUnit(m_TempUnit)) m_TempUnit = DEFAULT_TEMP_UNIT; 64 | } 65 | 66 | // return = 0 = processed a CAN msg 67 | // = 1 = got an unprocessed CAN msg 68 | uint8_t LeafCanData::ProcessRxMsg(st_cmd_t *rxmsg) 69 | { 70 | uint8_t rc = 1; 71 | uint8_t *candata = rxmsg->pt_data; 72 | 73 | if (rxmsg->id.std == 0x1db) { 74 | char calcKW = 0; 75 | uint16_t rpv = (candata[2] << 2) | (candata[3] >> 6); 76 | if (rpv != m_PackVolts) { 77 | SetDirtyBits(DBF_PACK_VOLTS); 78 | m_PackVolts = rpv; 79 | calcKW = 1; 80 | } 81 | 82 | int16_t rpa = (candata[0] << 3) | (candata[1] >> 5); 83 | if (rpa & 0x0400) { // negative - cvt extend sign bit 84 | rpa |= 0xf800; 85 | } 86 | if (rpa != m_PackAmps) { 87 | SetDirtyBits(DBF_PACK_AMPS); 88 | m_PackAmps = rpa; 89 | calcKW = 1; 90 | } 91 | 92 | if (calcKW) { 93 | int32_t v10 = (((int32_t)rpv)/2L)*10L + ((rpv & 1) ? 5L : 0L); // volts * 10 94 | int32_t a10 = (((int32_t)rpa)/2L)*10L + ((rpa & 1) ? 5L : 0L); // amps * 10 95 | int32_t w = ((v10 * -a10) + ((a10 >= 0) ? -50L:50L))/100L; 96 | if (w != m_W) { 97 | SetDirtyBits(DBF_WATTS); 98 | m_W = w; 99 | } 100 | 101 | } 102 | rc = 0; 103 | } 104 | else if (rxmsg->id.std == 0x55b) { 105 | uint16_t soc10 = (candata[0] << 2) | (candata[1] >> 6); 106 | if (soc10 != m_SOC) { 107 | SetDirtyBits(DBF_SOC); 108 | m_SOC = soc10; 109 | } 110 | rc = 0; 111 | } 112 | else if (rxmsg->id.std == 0x5b9) { 113 | uint8_t gfb = candata[0] >> 3; 114 | if (gfb != m_GOMFuelBars) { 115 | SetDirtyBits(DBF_GOM_FUEL_BARS); 116 | m_GOMFuelBars = gfb; 117 | } 118 | rc = 0; 119 | } 120 | else if (rxmsg->id.std == 0x5bc) { 121 | uint16_t gids = (candata[0] << 2) | (candata[1] >> 6); 122 | if ((gids < 1023) && (gids != m_Gids)) { 123 | SetDirtyBits(DBF_GIDS|DBF_WH_REMAINING|DBF_FIXED_FUEL_BARS); 124 | m_Gids = gids; 125 | m_Wh = ((((int32_t)m_Gids) * KW_FACTOR)+50L) / 100L; 126 | m_FixedFuelBars = (uint8_t)(((((int32_t)m_Gids) - 24L)*130L)/257); 127 | } 128 | rc = 0; 129 | } 130 | else if (rxmsg->id.std == 0x7bb) { 131 | rc = Process7BBFrame(candata); 132 | } 133 | /*not yet 134 | else if (rxmsg->id.std == 0x1da) { 135 | // RPM 136 | i16 = (candata[4] << 8) | candata[5]; 137 | g_EvData.RPM = i16; 138 | 139 | i16 = ((candata[2] & 0x03) << 8) | candata[3]; 140 | if (i16 & 0x0200) { // negative - extend sign bit 141 | i16 |= 0xfc00; 142 | } 143 | g_EvData.m_MotorPower = i16; 144 | } 145 | */ 146 | 147 | return rc; 148 | } 149 | 150 | // group = 255 requests next msg in current group 151 | uint8_t LeafCanData::Req79B(uint8_t group) 152 | { 153 | st_cmd_t *txmsg = g_CanBus.GetMsgTx(); 154 | uint8_t *candata = txmsg->pt_data; 155 | 156 | txmsg->cmd = CMD_TX_DATA; 157 | txmsg->ctrl.ide = 0; // CAN 2.0A 158 | txmsg->id.std = 0x79b; 159 | txmsg->dlc = 8; 160 | if (group != REQ_GROUP_NEXT_FRAME) { 161 | candata[0] = 0x02; 162 | candata[1] = 0x21; 163 | candata[2] = group; 164 | if (group == 1) { 165 | m_Cur7BBFrameCnt = 6; 166 | } 167 | else if (group == 2) { 168 | m_Cur7BBFrameCnt = 29; 169 | } 170 | else if (group == 3) { 171 | // m_Cur7BBFrameCnt = 5; 172 | m_Cur7BBFrameCnt = 3; // we only need the 1st 3 lines 173 | } 174 | else if (group == 4) { 175 | m_Cur7BBFrameCnt = 3; 176 | } 177 | else if (group == 5) { 178 | m_Cur7BBFrameCnt = 11; 179 | } 180 | else if (group == 6) { 181 | m_Cur7BBFrameCnt = 4; 182 | } 183 | 184 | m_Cur79BGroup = group; 185 | m_Cur7BBRcvFrameIdx = 0; 186 | m_Cur7BBReqFrameIdx = 1; 187 | } 188 | else { // REQ_GROUP_NEXT_FRAME - req next msg 189 | candata[0] = 0x30; 190 | candata[1] = 0x01; 191 | candata[2] = 0x00; 192 | } 193 | candata[3] = 0xff; 194 | candata[4] = 0xff; 195 | candata[5] = 0xff; 196 | candata[6] = 0xff; 197 | candata[7] = 0xff; 198 | 199 | #ifdef SDBG 200 | Serial.print("group: ");Serial.print(group,DEC);Serial.print(" framecnt: ");Serial.print(m_Cur7BBFrameCnt,DEC); 201 | #endif 202 | 203 | if (!g_CanBus.Write()) { 204 | m_Last7BBreqTime = millis(); 205 | return 0; 206 | } 207 | else { 208 | return 1; 209 | } 210 | } 211 | 212 | uint8_t LeafCanData::ReqNext7BBFrame() 213 | { 214 | if (m_Cur7BBRcvFrameIdx && (m_Cur7BBReqFrameIdx < m_Cur7BBFrameCnt) && 215 | ((millis()-m_Last7BBreqTime) >= REQ_INTERVAL_7BB)) { 216 | if (!Req79B(REQ_GROUP_NEXT_FRAME)) {// req next 7BB msg 217 | m_Cur7BBReqFrameIdx++; 218 | } 219 | } 220 | } 221 | 222 | uint8_t LeafCanData::Process7BBFrame(uint8_t *candata) 223 | { 224 | #ifdef SDBG 225 | Serial.print(" 7BB:");Serial.print(candata[0],HEX); 226 | #endif 227 | if (m_Cur79BGroup == 1) { 228 | if (candata[0] == 0x10) { 229 | m_Cur7BBRcvFrameIdx = 1; 230 | } 231 | else if (candata[0] == 0x21) { 232 | m_Cur7BBRcvFrameIdx = 2; 233 | } 234 | else if (candata[0] == 0x22) { 235 | m_Cur7BBRcvFrameIdx = 3; 236 | } 237 | else if (candata[0] == 0x23) { 238 | m_Cur7BBRcvFrameIdx = 4; 239 | } 240 | else if ((m_Cur7BBRcvFrameIdx == 4) && (candata[0] == 0x24)) { 241 | m_PackHealth = candata[2]; 242 | m_PackHealth <<= 8; 243 | m_PackHealth |= candata[3]; 244 | m_SOC32 = candata[5]; 245 | m_SOC32 <<= 8; 246 | m_SOC32 |= candata[6]; 247 | m_SOC32 <<= 8; 248 | m_SOC32 |= candata[7]; 249 | m_Cur7BBRcvFrameIdx = 5; 250 | } 251 | else if ((m_Cur7BBRcvFrameIdx == 5) && (candata[0] == 0x25)) { 252 | m_PackCap = candata[2]; 253 | m_PackCap <<= 8; 254 | m_PackCap |= candata[3]; 255 | m_PackCap <<= 8; 256 | m_PackCap |= candata[4]; 257 | 258 | m_Cur7BBRcvFrameIdx = 6; 259 | m_Cur7BBFrameCnt = 0; 260 | // Serial.print(" soc:");Serial.print(m_SOC32);Serial.print(" c:");Serial.print(m_PackCap);Serial.print(" h:");Serial.print(m_PackHealth); 261 | SetDirtyBits(DBF_SOC_CAP); 262 | } 263 | } 264 | else if (m_Cur79BGroup == 3) { 265 | if (candata[0] == 0x10) { 266 | m_Cur7BBRcvFrameIdx = 1; 267 | } 268 | else if ((m_Cur7BBRcvFrameIdx == 1) && (candata[0] == 0x21)) { 269 | m_CPVmax = candata[7]; 270 | m_Cur7BBRcvFrameIdx = 2; 271 | } 272 | else if ((m_Cur7BBRcvFrameIdx == 2) && (candata[0] == 0x22)) { 273 | m_CPVmax <<= 8; 274 | m_CPVmax |= candata[1]; 275 | m_CPVmin = candata[2]; 276 | m_CPVmin <<= 8; 277 | m_CPVmin |= candata[3]; 278 | 279 | m_Cur7BBRcvFrameIdx = 3; 280 | m_Cur7BBFrameCnt = 0; 281 | SetDirtyBits(DBF_CP_VOLTS); 282 | } 283 | } 284 | else if (m_Cur79BGroup == 4) { 285 | if (candata[0] == 0x10) { 286 | m_BattTemp1 = candata[6]; 287 | m_Cur7BBRcvFrameIdx = 1; 288 | } 289 | else if ((m_Cur7BBRcvFrameIdx == 1) && (candata[0] == 0x21)) { 290 | m_BattTemp2 = candata[2]; 291 | m_BattTemp3 = candata[5]; 292 | m_Cur7BBRcvFrameIdx = 2; 293 | } 294 | else if ((m_Cur7BBRcvFrameIdx == 2) && (candata[0] == 0x22)) { 295 | m_BattTemp4 = candata[1]; 296 | m_Cur7BBRcvFrameIdx = 3; 297 | m_Cur7BBFrameCnt = 0; 298 | SetDirtyBits(DBF_BATT_TEMP); 299 | } 300 | } 301 | 302 | return 0; 303 | } 304 | 305 | void LeafCanData::SaveEEPROM() 306 | { 307 | if (DirtyBitsSet(DBF_EEPROM)) { 308 | ClearDirtyBits(DBF_EEPROM); 309 | EEPROM.write(EOFS_DTE_TYPE,m_CurDteType); 310 | EEPROM.write(EOFS_TEMP_UNIT,m_TempUnit); 311 | } 312 | } 313 | -------------------------------------------------------------------------------- /LeafCanData.h: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2013 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #ifndef _LEAFCANDATA_H_ 26 | #define _LEAFCANDATA_H_ 27 | 28 | // fake request group for getting subsequent frames 29 | #define REQ_GROUP_NEXT_FRAME 255 30 | #define REQ_GROUP_INVALID 254 31 | 32 | // dirty bits 33 | #define DBF_PACK_VOLTS 0x0001 34 | #define DBF_PACK_AMPS 0x0002 35 | #define DBF_WATTS 0x0004 36 | #define DBF_SOC 0x0008 37 | #define DBF_GIDS 0x0010 38 | #define DBF_GOM_FUEL_BARS 0x0020 39 | #define DBF_FIXED_FUEL_BARS 0x0040 40 | #define DBF_WH_REMAINING 0x0080 41 | #define DBF_BATT_TEMP 0x0100 42 | #define DBF_SOC_CAP 0x0200 43 | #define DBF_CP_VOLTS 0x0400 44 | 45 | #define DBF_EEPROM 0x8000 // special dirty bit to force EEPROM save 46 | 47 | // m_CurDteType 48 | #define DTE_TYPE_LB 'L' 49 | #define DTE_TYPE_VLB 'V' 50 | #define DTE_TYPE_TURTLE 'T' 51 | 52 | inline uint8_t IsValidDteType(char t) 53 | { 54 | if ((t == DTE_TYPE_LB) || (t == DTE_TYPE_VLB) || (t == DTE_TYPE_TURTLE)) return 1; 55 | else return 0; 56 | } 57 | 58 | // m_TempUnit 59 | #define TEMP_UNIT_C 'C' 60 | #define TEMP_UNIT_F 'F' 61 | inline uint8_t IsValidTempUnit(char u) 62 | { 63 | if ((u == TEMP_UNIT_C) || (u == TEMP_UNIT_F)) return 1; 64 | else return 0; 65 | } 66 | 67 | class LeafCanData { 68 | uint16_t m_DirtyBits; 69 | public: 70 | // 79B msg response is 7BB 71 | unsigned long m_Last7BBreqTime; 72 | uint8_t m_Cur79BGroup; 73 | uint8_t m_Cur7BBReqFrameIdx; 74 | uint8_t m_Cur7BBRcvFrameIdx; 75 | uint8_t m_Cur7BBFrameCnt; 76 | public: 77 | uint16_t m_PackVolts; // Pack Volts * 2 78 | int16_t m_PackAmps; // Pack Amps * 2 (positive = charging) 79 | uint16_t m_SOC; // = SOC (% * 10) 80 | uint16_t m_Gids; 81 | uint8_t m_GOMFuelBars; // fuel bars displayed in dash GOM 82 | uint8_t m_FixedFuelBars; // fixed fuel bars * 10 83 | uint8_t m_BattTemp1,m_BattTemp2,m_BattTemp3,m_BattTemp4; // battery temperature (C) 84 | uint16_t m_CPVmin,m_CPVmax; // cell pair min/max voltage (mV) 85 | int32_t m_SOC32; // high precision SOC (% * 10000) 86 | int32_t m_PackCap; // pack capacity (Ah * 10000) 87 | int32_t m_PackHealth; // health (% * 100) 88 | 89 | // calculated values 90 | int32_t m_W; // Watts (negative = charging) 91 | int32_t m_Wh; // energy remaining in pack = gids * KW_FACTOR 92 | 93 | // calculated constants 94 | int32_t m_WhL; // Wh left @ LB 95 | int32_t m_WhV; // Wh left @ VLB 96 | int32_t m_WhT; // Wh left @ Turtle 97 | 98 | // settings 99 | int32_t m_DpKWh10_Low; // lowest dist/KWh * 10 for DTEt 100 | int32_t m_DpKWh10_Incr; // DpKWh10 increment for DTE 101 | char m_CurDteType; // DTE_TYPE_xxx 102 | char m_TempUnit; // TEMP_UNIT_x 103 | 104 | 105 | LeafCanData(); 106 | uint16_t SetDirtyBits(uint16_t bits) { 107 | m_DirtyBits |= bits; 108 | } 109 | uint16_t ClearDirtyBits(uint16_t bits) { 110 | m_DirtyBits &= ~bits; 111 | } 112 | uint16_t DirtyBitsSet(uint16_t bits) { 113 | return m_DirtyBits & bits; 114 | } 115 | void SetTempUnit(char t) { m_TempUnit = t;SetDirtyBits(DBF_EEPROM); } 116 | void SetDteType(char t) { m_CurDteType = t;SetDirtyBits(DBF_EEPROM); } 117 | void SaveEEPROM(); 118 | 119 | uint8_t ProcessRxMsg(st_cmd_t *rxmsg); 120 | uint8_t Process7BBFrame(uint8_t *candata); 121 | uint8_t Req79B(uint8_t group); 122 | uint8_t ReqNext7BBFrame(); 123 | }; 124 | 125 | #endif // _LEAFCANDATA_H_ 126 | -------------------------------------------------------------------------------- /README: -------------------------------------------------------------------------------- 1 | LeafCAN - SOC Meter for Nissan Leaf 2 | by Sam C. Lin 3 | Software Copyright (c) 2012-2014 Sam C. Lin 4 | Eagle Files Copyright (c) 2012 Sam C. Lin and Chris Howell 5 | 6 | The files in this project free software; you can redistribute 7 | and/or modify them under the terms of the GNU General Public 8 | License as published by the Free Software Foundation; either 9 | version 2.1 of the License, or (at your option) any later version. 10 | 11 | These files are distributed in the hope that it will be useful, 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | Lesser General Public License for more details. 15 | 16 | You should have received a copy of the GNU General Public 17 | License along with this library; if not, write to the Free Software 18 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 | 20 | ----------- 21 | 22 | CANMonitor.sch - Eagle schematic for CAN bus monitor 23 | LeafCAN.pde - AT90CAN128 Arduino sketch for Nissan Leaf SOC monitor 24 | LeafCAN.hex - precompiled HEX file 25 | flash.bat - MS batch file for setting fuses and flashing firmware 26 | 27 | ----------- 28 | 29 | For more information on this project, see my blog: http://blog.lincomatic.com/?tag=can-bus 30 | 31 | Many thanks to the members of the MyNissanLeaf forum, especially garygid, for all the groundwork which led to this project. 32 | ---------- 33 | 34 | ChangeLog 35 | 36 | 20141030 SCL v2.01 37 | - minor cleanup of CanBusInterface class 38 | 39 | 20131121 SCL v2.00 40 | - added encoder stuff and rewrote w/ classes 41 | 42 | 20130321 SCL v1.3 43 | - added Adafruit 16x2 OLED support - #define ADA_OLED 44 | 45 | 20121002 SCL v1.3 46 | - added V2 hardware support 47 | - added FIXED_FUEL_BARS option 48 | - added SOCPCT_55B to show "true" SOC% from 55B message 49 | (when enabled, replaces amps in center of bottom line) 50 | 51 | 20120602 SCL v1.2 52 | - added power consumption in KW to line 2 of display (battery pack volts * amps) 53 | - added SHOW_KWH/SHOW_KW #defines, allowing users to revert to display style of v1.0 if desired 54 | 55 | 20120602 SCL v1.1 56 | - added remaining KWh to display 57 | - update display only once every 250ms to increase readability 58 | 59 | v1.0 - initial release -------------------------------------------------------------------------------- /RotaryEncoder.cpp: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2013 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #if ARDUINO >= 100 26 | #include "Arduino.h" 27 | #else 28 | #include "WProgram.h" 29 | #endif 30 | 31 | #include "LeafCAN.h" 32 | 33 | int8_t RotaryEncoder::enc_states[16] = { 34 | 0,-1,1,0,1,0,0,-1,-1,0,0,1,0,1,-1,0}; 35 | 36 | 37 | 38 | RotaryEncoder::RotaryEncoder() 39 | { 40 | } 41 | 42 | void RotaryEncoder::Setup() 43 | { 44 | /* Setup encoder pins as inputs */ 45 | // set up as inputs 46 | ENC_DDR &= ~(ENC_BIT_A|ENC_BIT_B|ENC_BIT_BTN); 47 | // turn on pullups 48 | ENC_PORT |= ENC_BIT_A|ENC_BIT_B|ENC_BIT_BTN; 49 | 50 | m_tcnt = 0; 51 | m_old_AB = 0; 52 | 53 | m_lastDebounceTime = 0; 54 | m_lastbtnval = ENC_BIT_BTN; 55 | m_lastbtnstate = ENC_BIT_BTN; // 0=pressed 56 | 57 | ResetCount(); 58 | } 59 | 60 | /* 61 | returns change in encoder state (-1,0,1) and btn bit 62 | */ 63 | int8_t RotaryEncoder::read_encoder(int8_t *btnval) 64 | { 65 | int8_t encpin; 66 | 67 | m_old_AB <<= 2; //remember previous state 68 | encpin = ENC_PIN; 69 | *btnval = encpin & ENC_BIT_BTN; 70 | m_old_AB |= ( encpin & 0x03 ); //add current state 71 | int8_t tval = enc_states[( m_old_AB & 0x0f )]; 72 | 73 | // return nonzero only when we get 4 consecutive vals in the same direction 74 | if (tval) { 75 | m_tcnt += tval; 76 | if ((m_tcnt == 4) || (m_tcnt == -4)) { 77 | m_tcnt = 0; 78 | return tval; 79 | } 80 | } 81 | return 0; 82 | } 83 | 84 | // btnState = 0 = pressed,=1=released 85 | // return value = encoder count 86 | int8_t RotaryEncoder::Read(int8_t *btnState=NULL) 87 | { 88 | int8_t encval,btnval; 89 | 90 | /*encoder*/ 91 | encval = read_encoder(&btnval); 92 | if( encval ) { 93 | m_count += encval; 94 | } 95 | 96 | /* encoder button */ 97 | if (btnval != m_lastbtnval) { 98 | m_lastDebounceTime = millis(); 99 | *btnState = m_lastbtnstate; 100 | } 101 | else if ((millis()-m_lastDebounceTime) > DEBOUNCE_DELAY) { 102 | *btnState = btnval; 103 | m_lastbtnstate = btnval; 104 | } 105 | else { 106 | *btnState = m_lastbtnstate; 107 | } 108 | 109 | m_lastbtnval = btnval; 110 | 111 | return m_count; 112 | } 113 | 114 | -------------------------------------------------------------------------------- /RotaryEncoder.h: -------------------------------------------------------------------------------- 1 | // -*- C++ -*- 2 | /* 3 | * LeafCAN Firmware 4 | * 5 | * Copyright (c) 2012-2013 Sam C. Lin 6 | * Maintainer: SCL 7 | 8 | * This file is part of LeafCAN 9 | 10 | * LeafCAN is free software; you can redistribute it and/or modify 11 | * it under the terms of the GNU General Public License as published by 12 | * the Free Software Foundation; either version 3, or (at your option) 13 | * any later version. 14 | 15 | * LeafCAN is distributed in the hope that it will be useful, 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | * GNU General Public License for more details. 19 | 20 | * You should have received a copy of the GNU General Public License 21 | * along with LeafCAN; see the file COPYING. If not, write to the 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 23 | * Boston, MA 02111-1307, USA. 24 | */ 25 | #ifndef _ROTARY_ENCODER_H_ 26 | #define _ROTARY_ENCODER_H_ 27 | 28 | /* 29 | Rotary encoder with polling reads. 30 | for 2 channel gray code (quadrature) encoder ... 4 transitions/click 31 | code adapted from http://www.circuitsathome.com/mcu/reading-rotary-encoder-on-arduino 32 | by Sam C. Lin 20121125 33 | 20121012 SCL - changed to RotaryEncoder class 34 | 35 | For interrupt-driven see http://www.circuitsathome.com/mcu/rotary-encoder-interrupt-service-routine-for-avr-micros 36 | 37 | This code only works if ENC_A and ENC_B are connected to pins 0,1 of the selected port 38 | switch may be any other bit on the same port 39 | if they are not pins 0,1 the bits need to be shifted there in the line 40 | old_AB |= ( ENC_PIN & 0x03 ); //add current state 41 | */ 42 | 43 | //moved to LeafCAN.h 44 | //#define ENC_BIT_A (1<<0) 45 | //#define ENC_BIT_B (1<<1) 46 | //#define ENC_BIT_BTN (1<<2) 47 | //#define ENC_DDR DDRC 48 | //#define ENC_PIN PINC 49 | //#define ENC_PORT PORTC 50 | #define DEBOUNCE_DELAY 50 // ms 51 | 52 | class RotaryEncoder { 53 | static int8_t enc_states[16]; 54 | int8_t m_tcnt; 55 | uint8_t m_old_AB; 56 | int8_t m_count; 57 | int8_t m_lastbtnval; 58 | int8_t m_lastbtnstate; 59 | long m_lastDebounceTime; 60 | 61 | int8_t read_encoder(int8_t *btnval); 62 | public: 63 | RotaryEncoder(); 64 | void Setup(); 65 | int8_t Read(int8_t *btnState); 66 | void ResetCount() { 67 | m_count = 0; 68 | } 69 | }; 70 | 71 | #endif // _ROTARY_ENCODER_H_ 72 | -------------------------------------------------------------------------------- /flash.bat: -------------------------------------------------------------------------------- 1 | avrdude -c usbtiny -p at90can128 -U flash:w:LeafCANv2.hex 2 | 3 | -------------------------------------------------------------------------------- /hardware/CANMonitor_v1.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lincomatic/LeafCAN/cfcaa9a8fec631ca80dcf7654382e95ce37bcf6a/hardware/CANMonitor_v1.zip -------------------------------------------------------------------------------- /hardware/CANMonitor_v2.zip: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lincomatic/LeafCAN/cfcaa9a8fec631ca80dcf7654382e95ce37bcf6a/hardware/CANMonitor_v2.zip -------------------------------------------------------------------------------- /setfuses.bat: -------------------------------------------------------------------------------- 1 | avrdude -c usbtiny -p at90can128 -U lfuse:w:0xFF:m 2 | avrdude -c usbtiny -p at90can128 -U hfuse:w:0x19:m 3 | avrdude -c usbtiny -p at90can128 -U efuse:w:0xFF:m 4 | --------------------------------------------------------------------------------