naoto tanaka / Mbed 2 deprecated LTC6803_Eval

BMS I/Fプログラム

Dependencies:   mbed

main.cpp@5:8076127d0690, 2016-10-16 (annotated)

Committer:
NT32
Date:
Sun Oct 16 06:40:13 2016 +0000
Revision:
5:8076127d0690
Parent:
4:c5b0a318c84d
Child:
6:517848b32b0f
???????BMS??????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NT32 0:2d6ffd5a4d2e 1 #include "mbed.h"
NT32 0:2d6ffd5a4d2e 2 #include "LTC6803.h"
NT32 3:8607d7ab7f25 3 #define BMS_NUM 2
NT32 0:2d6ffd5a4d2e 4
NT32 1:5690684e5460 5 DigitalOut myled(LED1);
NT32 2:c7ea42f45ff5 6 SPI spi(dp2, dp1, dp6); // mosi, miso, sclk
NT32 2:c7ea42f45ff5 7 DigitalOut cs(dp4);
NT32 0:2d6ffd5a4d2e 8
NT32 2:c7ea42f45ff5 9 Serial pc(dp16, dp15);
NT32 0:2d6ffd5a4d2e 10
NT32 0:2d6ffd5a4d2e 11 unsigned char CalcCRCLTC6803(unsigned char * dat, unsigned char numdat);
NT32 0:2d6ffd5a4d2e 12
NT32 0:2d6ffd5a4d2e 13 static unsigned char crc8_table[256]; // 8-bit table for PEC calc
NT32 0:2d6ffd5a4d2e 14 static int made_table = 0; // table made flag
NT32 0:2d6ffd5a4d2e 15 unsigned char packet[18]={0}; // used for PEC calc
NT32 0:2d6ffd5a4d2e 16 unsigned char PECbyte; // PEC of a byte
NT32 0:2d6ffd5a4d2e 17 unsigned char PECpacket; // PEC of packet
NT32 0:2d6ffd5a4d2e 18 unsigned char PECpacketREAD; // value that PECpacket should be as read from 6803
NT32 0:2d6ffd5a4d2e 19
NT32 0:2d6ffd5a4d2e 20 static void init_crc8();
NT32 0:2d6ffd5a4d2e 21 void setPECbyte(unsigned char m);
NT32 0:2d6ffd5a4d2e 22 void setPECpacket(unsigned char np);
NT32 0:2d6ffd5a4d2e 23
NT32 0:2d6ffd5a4d2e 24 static void init_crc8() {
NT32 0:2d6ffd5a4d2e 25 int z,j;
NT32 0:2d6ffd5a4d2e 26 unsigned char cr;
NT32 0:2d6ffd5a4d2e 27 if (!made_table) {
NT32 0:2d6ffd5a4d2e 28 for (z = 0; z < 256; z ++) {
NT32 0:2d6ffd5a4d2e 29 cr = z;
NT32 0:2d6ffd5a4d2e 30 for (j = 0; j < 8; j ++) {
NT32 0:2d6ffd5a4d2e 31 cr = (cr << 1) ^ ((cr & 0x80) ? 0x07 : 0);
NT32 0:2d6ffd5a4d2e 32 }
NT32 0:2d6ffd5a4d2e 33 crc8_table[z] = cr & 0xFF;
NT32 0:2d6ffd5a4d2e 34 }
NT32 0:2d6ffd5a4d2e 35 made_table = 1;
NT32 0:2d6ffd5a4d2e 36 }
NT32 0:2d6ffd5a4d2e 37 }
NT32 0:2d6ffd5a4d2e 38
NT32 0:2d6ffd5a4d2e 39 void setPECbyte(unsigned char m) {
NT32 0:2d6ffd5a4d2e 40 PECbyte = 0x41; // initialize PECbyte
NT32 0:2d6ffd5a4d2e 41 if (!made_table) {
NT32 0:2d6ffd5a4d2e 42 init_crc8();
NT32 0:2d6ffd5a4d2e 43 }
NT32 0:2d6ffd5a4d2e 44 PECbyte = crc8_table[(PECbyte) ^ m];
NT32 0:2d6ffd5a4d2e 45 }
NT32 0:2d6ffd5a4d2e 46
NT32 0:2d6ffd5a4d2e 47 void setPECpacket(unsigned char np) { // np is number of bytes currently in packet[]
NT32 0:2d6ffd5a4d2e 48 int z;
NT32 0:2d6ffd5a4d2e 49 PECpacket = 0x41; // initialize PECpacket
NT32 0:2d6ffd5a4d2e 50 if (!made_table) {
NT32 0:2d6ffd5a4d2e 51 init_crc8();
NT32 0:2d6ffd5a4d2e 52 }
NT32 0:2d6ffd5a4d2e 53 for (z = 0; z < np; z ++) {
NT32 0:2d6ffd5a4d2e 54 PECpacket = crc8_table[(PECpacket) ^ packet[z]];
NT32 0:2d6ffd5a4d2e 55 }
NT32 0:2d6ffd5a4d2e 56 }
NT32 0:2d6ffd5a4d2e 57 unsigned char CalcCRCLTC6803(unsigned char * dat, unsigned char numdat){
NT32 0:2d6ffd5a4d2e 58 unsigned char pec;
NT32 0:2d6ffd5a4d2e 59 char loop, outerloop;
NT32 0:2d6ffd5a4d2e 60 datainput in;
NT32 0:2d6ffd5a4d2e 61 in.byte = 0;
NT32 0:2d6ffd5a4d2e 62 pec = CRCDEFAULT;
NT32 0:2d6ffd5a4d2e 63 for(outerloop = 0; outerloop < numdat; outerloop++){
NT32 0:2d6ffd5a4d2e 64 for(loop = 8; loop > 0; loop--){
NT32 0:2d6ffd5a4d2e 65 in.in.b0 = (dat[outerloop] >> (loop - 1)) ^ ((pec >> 7));
NT32 0:2d6ffd5a4d2e 66 in.in.b1 = in.in.b0 ^ (pec);
NT32 0:2d6ffd5a4d2e 67 in.in.b2 = in.in.b0 ^ (pec >> 1);
NT32 0:2d6ffd5a4d2e 68 pec = pec << 1;
NT32 0:2d6ffd5a4d2e 69 pec = (pec & 0xF8) | (in.byte & 0x07);
NT32 0:2d6ffd5a4d2e 70 }
NT32 0:2d6ffd5a4d2e 71 }
NT32 0:2d6ffd5a4d2e 72 return pec;
NT32 0:2d6ffd5a4d2e 73 }
NT32 0:2d6ffd5a4d2e 74
NT32 0:2d6ffd5a4d2e 75
NT32 0:2d6ffd5a4d2e 76
NT32 0:2d6ffd5a4d2e 77 int main() {
NT32 3:8607d7ab7f25 78 unsigned char cmd, tmp, datnum, getpec;
NT32 3:8607d7ab7f25 79 unsigned char dat[16], getdat[18][BMS_NUM];
NT32 1:5690684e5460 80 // float cellvol[4];
NT32 3:8607d7ab7f25 81 int cellvol[12][BMS_NUM];
NT32 2:c7ea42f45ff5 82 int cellallvol;
NT32 0:2d6ffd5a4d2e 83 char str[32];
NT32 0:2d6ffd5a4d2e 84 cs = 1;
NT32 0:2d6ffd5a4d2e 85 spi.format(8,3);
NT32 2:c7ea42f45ff5 86 spi.frequency(500000);
NT32 0:2d6ffd5a4d2e 87 pc.baud(460800);
NT32 1:5690684e5460 88
NT32 1:5690684e5460 89 cs = 0;
NT32 0:2d6ffd5a4d2e 90 cmd = WRCFG;
NT32 0:2d6ffd5a4d2e 91 spi.write(cmd);
NT32 0:2d6ffd5a4d2e 92 spi.write(CalcCRCLTC6803(&cmd, 1));
NT32 0:2d6ffd5a4d2e 93 dat[0] = 0x02;
NT32 2:c7ea42f45ff5 94 dat[1] = 0x00;
NT32 1:5690684e5460 95 dat[2] = 0x00;
NT32 0:2d6ffd5a4d2e 96 dat[3] = 0xff;
NT32 1:5690684e5460 97 dat[4] = 42;
NT32 1:5690684e5460 98 dat[5] = 255;
NT32 5:8076127d0690 99 for(int loop_1 = 0; loop_1 < BMS_NUM; loop_1++){
NT32 5:8076127d0690 100 for(int loop = 0;loop < 6; loop++){
NT32 5:8076127d0690 101 spi.write(dat[loop]);
NT32 5:8076127d0690 102 }
NT32 5:8076127d0690 103 cmd = CalcCRCLTC6803(dat, 6);
NT32 5:8076127d0690 104 spi.write(cmd);
NT32 0:2d6ffd5a4d2e 105 }
NT32 1:5690684e5460 106 cs = 1;
NT32 1:5690684e5460 107 wait(0.001);
NT32 0:2d6ffd5a4d2e 108 while(1) {
NT32 0:2d6ffd5a4d2e 109 cs = 0;
NT32 2:c7ea42f45ff5 110 cmd = RDCV;
NT32 0:2d6ffd5a4d2e 111 spi.write(cmd);
NT32 1:5690684e5460 112 spi.write(CalcCRCLTC6803(&cmd, 1));
NT32 5:8076127d0690 113 for(int bms = 0; bms < BMS_NUM; bms++){
NT32 5:8076127d0690 114 for(int cell = 0;cell < 18; cell++){
NT32 5:8076127d0690 115 getdat[cell][bms] = spi.write(0);
NT32 5:8076127d0690 116 }
NT32 5:8076127d0690 117 getpec = spi.write(0);
NT32 0:2d6ffd5a4d2e 118 }
NT32 0:2d6ffd5a4d2e 119 cs = 1;
NT32 1:5690684e5460 120 wait(0.001);
NT32 1:5690684e5460 121 cs = 0;
NT32 1:5690684e5460 122 pc.printf("\033[2J");
NT32 1:5690684e5460 123 pc.printf("\033[%d;%dH" , 0, 0);
NT32 2:c7ea42f45ff5 124 cellallvol = 0;
NT32 3:8607d7ab7f25 125 for(int bms = 0; bms < BMS_NUM; bms++){
NT32 3:8607d7ab7f25 126 cellvol[0][bms] = (((getdat[1][bms] & 0x0f) << 8) | getdat[0][bms]);
NT32 3:8607d7ab7f25 127 cellvol[1][bms] = ((getdat[2][bms] << 4) | ((getdat[1][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 128 cellvol[2][bms] = (((getdat[4][bms] & 0x0f) << 8) | getdat[3][bms]);
NT32 3:8607d7ab7f25 129 cellvol[3][bms] = ((getdat[5][bms] << 4) | ((getdat[4][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 130 cellvol[4][bms] = (((getdat[7][bms] & 0x0f) << 8) | getdat[6][bms]);
NT32 3:8607d7ab7f25 131 cellvol[5][bms] = ((getdat[8][bms] << 4) | ((getdat[7][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 132 cellvol[6][bms] = (((getdat[10][bms] & 0x0f) << 8) | getdat[9][bms]);
NT32 3:8607d7ab7f25 133 cellvol[7][bms] = ((getdat[11][bms] << 4) | ((getdat[10][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 134 cellvol[8][bms] = (((getdat[13][bms] & 0x0f) << 8) | getdat[12][bms]);
NT32 3:8607d7ab7f25 135 cellvol[9][bms] = ((getdat[14][bms] << 4) | ((getdat[13][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 136 cellvol[10][bms] = (((getdat[16][bms] & 0x0f) << 8) | getdat[15][bms]);
NT32 3:8607d7ab7f25 137 cellvol[11][bms] = ((getdat[17][bms] << 4) | ((getdat[16][bms] & 0xf0) >> 4));
NT32 3:8607d7ab7f25 138 for(int loop = 0;loop < (12); loop++){
NT32 3:8607d7ab7f25 139 //表示する数値は(cellvol[loop] - 512)*1.5mV
NT32 5:8076127d0690 140 pc.printf("Cell%2d = %5dmV\n", (loop) + (bms * 12) + 1, ((cellvol[loop][bms] - 512)+((cellvol[loop][bms] - 512)/2)));
NT32 3:8607d7ab7f25 141 cellallvol += cellvol[loop][bms];
NT32 3:8607d7ab7f25 142 }
NT32 0:2d6ffd5a4d2e 143 }
NT32 3:8607d7ab7f25 144 pc.printf("CellALL = %5dmV\n", ((cellallvol - 512*(12 * BMS_NUM))+((cellallvol - 512*(12 * BMS_NUM))/2)));
NT32 1:5690684e5460 145
NT32 5:8076127d0690 146 cmd = STCVADALL;
NT32 1:5690684e5460 147
NT32 1:5690684e5460 148 spi.write(cmd);
NT32 1:5690684e5460 149 spi.write(CalcCRCLTC6803(&cmd, 1));
NT32 1:5690684e5460 150 cs = 1;
NT32 0:2d6ffd5a4d2e 151 myled = !myled;
NT32 1:5690684e5460 152 wait(0.4);
NT32 0:2d6ffd5a4d2e 153 }
NT32 0:2d6ffd5a4d2e 154 }