KIT Solar Car Project / Mbed OS BMS_3029_T1

BMS_T2

Dependencies:   INA226

bms.cpp@3:61174d4de67d, 2020-10-13 (annotated)

Committer:
takuma1
Date:
Tue Oct 13 07:20:11 2020 +0000
Revision:
3:61174d4de67d
Parent:
2:3bbbe439ec11 
BMS_T2;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
takuma1 2:3bbbe439ec11 1
APS_Lab 0:f06ed53310a3 2 #include "mbed.h"
APS_Lab 0:f06ed53310a3 3 #include "bms.h"
APS_Lab 0:f06ed53310a3 4
takuma1 2:3bbbe439ec11 5 SPI spi(p5,p6,p7);
takuma1 2:3bbbe439ec11 6 DigitalOut cs(p8);
APS_Lab 0:f06ed53310a3 7
APS_Lab 1:4dd3e328a30b 8 void cs_low(void)
APS_Lab 1:4dd3e328a30b 9 {
APS_Lab 1:4dd3e328a30b 10 cs=0;
APS_Lab 1:4dd3e328a30b 11 }
APS_Lab 1:4dd3e328a30b 12
APS_Lab 1:4dd3e328a30b 13 void cs_high(void)
APS_Lab 1:4dd3e328a30b 14 {
APS_Lab 1:4dd3e328a30b 15 cs=1;
APS_Lab 1:4dd3e328a30b 16 }
APS_Lab 1:4dd3e328a30b 17
APS_Lab 0:f06ed53310a3 18 void delay_u(uint16_t micro)
APS_Lab 0:f06ed53310a3 19 {
APS_Lab 0:f06ed53310a3 20 wait_us(micro);
APS_Lab 0:f06ed53310a3 21 }
APS_Lab 0:f06ed53310a3 22
APS_Lab 0:f06ed53310a3 23 void delay_m(uint16_t milli)
APS_Lab 0:f06ed53310a3 24 {
APS_Lab 0:f06ed53310a3 25 wait_ms(milli);
APS_Lab 0:f06ed53310a3 26 }
APS_Lab 0:f06ed53310a3 27
APS_Lab 0:f06ed53310a3 28 void spi_enable(void) // Configures SCK frequency. Use constant defined in header file.
APS_Lab 0:f06ed53310a3 29 {
APS_Lab 0:f06ed53310a3 30 cs = 1; //high as init for disable SPI
APS_Lab 0:f06ed53310a3 31 spi.format(8, 3); //byte width, spi mode
APS_Lab 0:f06ed53310a3 32 spi.frequency(1000000); //1MHz
APS_Lab 0:f06ed53310a3 33 }
APS_Lab 0:f06ed53310a3 34
APS_Lab 0:f06ed53310a3 35
APS_Lab 0:f06ed53310a3 36 /*
APS_Lab 0:f06ed53310a3 37 Writes an array of bytes out of the SPI port
APS_Lab 0:f06ed53310a3 38 */
APS_Lab 0:f06ed53310a3 39 void spi_write_array(uint8_t len, // Option: Number of bytes to be written on the SPI port
APS_Lab 0:f06ed53310a3 40 uint8_t data[] //Array of bytes to be written on the SPI port
APS_Lab 0:f06ed53310a3 41 )
APS_Lab 0:f06ed53310a3 42 {
APS_Lab 1:4dd3e328a30b 43 //cs=0;
APS_Lab 0:f06ed53310a3 44 for (uint8_t i = 0; i < len; i++) {
APS_Lab 0:f06ed53310a3 45 spi.write((int8_t)data[i]);
APS_Lab 0:f06ed53310a3 46 }
APS_Lab 1:4dd3e328a30b 47 //cs=1;
APS_Lab 0:f06ed53310a3 48 }
APS_Lab 0:f06ed53310a3 49
APS_Lab 0:f06ed53310a3 50 /*
APS_Lab 0:f06ed53310a3 51 Writes and read a set number of bytes using the SPI port.
APS_Lab 0:f06ed53310a3 52
APS_Lab 0:f06ed53310a3 53 */
APS_Lab 0:f06ed53310a3 54
APS_Lab 0:f06ed53310a3 55 void spi_write_read(uint8_t tx_Data[],//array of data to be written on SPI port
APS_Lab 0:f06ed53310a3 56 uint8_t tx_len, //length of the tx data arry
APS_Lab 0:f06ed53310a3 57 uint8_t *rx_data,//Input: array that will store the data read by the SPI port
APS_Lab 0:f06ed53310a3 58 uint8_t rx_len //Option: number of bytes to be read from the SPI port
APS_Lab 0:f06ed53310a3 59 )
APS_Lab 0:f06ed53310a3 60 {
APS_Lab 1:4dd3e328a30b 61 //cs=0;
APS_Lab 0:f06ed53310a3 62 for (uint8_t i = 0; i < tx_len; i++) {
APS_Lab 0:f06ed53310a3 63 spi.write(tx_Data[i]);
APS_Lab 0:f06ed53310a3 64 }
APS_Lab 1:4dd3e328a30b 65 //cs=1;
APS_Lab 0:f06ed53310a3 66
APS_Lab 1:4dd3e328a30b 67 //cs=0;
APS_Lab 0:f06ed53310a3 68 for (uint8_t i = 0; i < rx_len; i++) {
APS_Lab 0:f06ed53310a3 69
APS_Lab 0:f06ed53310a3 70 rx_data[i] = (uint8_t)spi.write(0xFF);
APS_Lab 0:f06ed53310a3 71 }
APS_Lab 1:4dd3e328a30b 72 //cs=1;
APS_Lab 0:f06ed53310a3 73
APS_Lab 0:f06ed53310a3 74 }
APS_Lab 0:f06ed53310a3 75
APS_Lab 0:f06ed53310a3 76
APS_Lab 0:f06ed53310a3 77 uint8_t spi_read_byte(uint8_t tx_dat)
APS_Lab 0:f06ed53310a3 78 {
APS_Lab 0:f06ed53310a3 79 uint8_t data;
APS_Lab 1:4dd3e328a30b 80 //cs=0;
APS_Lab 0:f06ed53310a3 81 data = (uint8_t)spi.write(0xFF);
APS_Lab 1:4dd3e328a30b 82 //cs=1;
APS_Lab 0:f06ed53310a3 83 return(data);
APS_Lab 0:f06ed53310a3 84 }