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BMS
main.cpp
- Committer:
- roger5641
- Date:
- 2017-12-20
- Revision:
- 6:c2ab60b20d11
- Parent:
- 5:4c6c92733561
- Child:
- 7:5f7232441106
File content as of revision 6:c2ab60b20d11:
/* Copyright (c) 2017, Linear Technology Corp.(LTC) All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of Linear Technology Corp. The Linear Technology Linduino is not affiliated with the official Arduino team. However, the Linduino is only possible because of the Arduino team's commitment to the open-source community. Please, visit http://www.arduino.cc and http://store.arduino.cc , and consider a purchase that will help fund their ongoing work. Copyright 2017 Linear Technology Corp. (LTC) */ #include "mbed.h" #include <stdint.h> #include "bms_master.h" #define ENABLED 1 #define DISABLED 0 #define DATALOG_ENABLED 1 #define DATALOG_DISABLED 0 DigitalOut fan1(D6); DigitalOut fan2(D7); DigitalOut fan3(D8); DigitalOut fan4(D9); DigitalOut led1(A1); DigitalOut led2(A0); DigitalOut led3(D3); DigitalOut led4(D4); DigitalOut led5(D5); //char get_char(); void print_menu(); void read_config_data(uint8_t cfg_data[][6], uint8_t nIC); void print_cells(uint8_t datalog_en); void print_open(); void print_config(); void print_rxconfig(); void print_aux(uint8_t datalog_en); void print_stat(); void check_error(int error); /********************************************************** Setup Variables The following variables can be modified to configure the software. ***********************************************************/ const uint8_t TOTAL_IC = 1;//!<number of ICs in the daisy chain //ADC Command Configurations const uint8_t ADC_OPT = ADC_OPT_DISABLED; // See LTC6811_daisy.h for Options const uint8_t ADC_CONVERSION_MODE = MD_7KHZ_3KHZ;//MD_7KHZ_3KHZ; //MD_26HZ_2KHZ;//MD_7KHZ_3KHZ; // See LTC6811_daisy.h for Options const uint8_t ADC_DCP = DCP_DISABLED; // See LTC6811_daisy.h for Options const uint8_t CELL_CH_TO_CONVERT = CELL_CH_ALL; // See LTC6811_daisy.h for Options const uint8_t AUX_CH_TO_CONVERT = AUX_CH_ALL; // See LTC6811_daisy.h for Options const uint8_t STAT_CH_TO_CONVERT = STAT_CH_ALL; // See LTC6811_daisy.h for Options const uint16_t MEASUREMENT_LOOP_TIME = 500;//milliseconds(mS) //Under Voltage and Over Voltage Thresholds const uint16_t OV_THRESHOLD = 41000; // Over voltage threshold ADC Code. LSB = 0.0001 const uint16_t UV_THRESHOLD = 30000; // Under voltage threshold ADC Code. LSB = 0.0001 //Loop Measurement Setup These Variables are ENABLED or DISABLED Remember ALL CAPS const uint8_t WRITE_CONFIG = DISABLED; // This is ENABLED or DISABLED const uint8_t READ_CONFIG = DISABLED; // This is ENABLED or DISABLED const uint8_t MEASURE_CELL = ENABLED; // This is ENABLED or DISABLED const uint8_t MEASURE_AUX = DISABLED; // This is ENABLED or DISABLED const uint8_t MEASURE_STAT = DISABLED; //This is ENABLED or DISABLED const uint8_t PRINT_PEC = DISABLED; //This is ENABLED or DISABLED /************************************ END SETUP *************************************/ /****************************************************** *** Global Battery Variables received from 681x commands These variables store the results from the LTC6811 register reads and the array lengths must be based on the number of ICs on the stack ******************************************************/ cell_asic bms_ic[TOTAL_IC]; void run_command(uint32_t cmd); void measurement_loop(uint8_t datalog_en); void print_pec(void); void serial_print_hex(uint8_t data); /*!********************************************************************* \brief main loop ***********************************************************************/ int main(void) { pc.baud(115200); CS_PIN = 1; spi.format(8,3); spi.frequency(1000000); // 1MHz clock rate led1 = 1; led2 = 1; led3 = 1; led4 = 1; led5 = 1; LTC681x_init_cfg(TOTAL_IC, bms_ic); LTC681x_reset_crc_count(TOTAL_IC,bms_ic); LTC6811_init_reg_limits(TOTAL_IC,bms_ic); print_menu(); while(1) { if (pc.readable()) // Check for user input { uint32_t user_command; user_command = read_int(); // Read the user command pc.printf("%d\n",user_command); run_command(user_command); } } } /*!***************************************** \brief executes the user command *******************************************/ void run_command(uint32_t cmd) { int8_t error = 0; uint32_t conv_time = 0; // uint32_t user_command; int8_t readIC=0; char input = 0; switch (cmd) { case 1: // Write Configuration Register wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); print_config(); break; case 2: // Read Configuration Register wakeup_sleep(TOTAL_IC); error = LTC681x_rdcfg(TOTAL_IC,bms_ic); check_error(error); print_rxconfig(); break; case 3: // Start Cell ADC Measurement wakeup_sleep(TOTAL_IC); LTC681x_adcv(ADC_CONVERSION_MODE,ADC_DCP,CELL_CH_TO_CONVERT); conv_time = LTC681x_pollAdc(); pc.printf("cell conversion completed in:"); pc.printf("%.1f",((float)conv_time/1000)); pc.printf("mS"); pc.printf("\n\r"); break; case 4: // Read Cell Voltage Registers wakeup_sleep(TOTAL_IC); error = LTC681x_rdcv(0, TOTAL_IC,bms_ic); // Set to read back all cell voltage registers check_error(error); print_cells(DATALOG_DISABLED); break; case 5: // Start GPIO ADC Measurement wakeup_sleep(TOTAL_IC); LTC681x_adax(ADC_CONVERSION_MODE , AUX_CH_TO_CONVERT); LTC681x_pollAdc(); pc.printf("aux conversion completed"); pc.printf("\n\r"); break; case 6: // Read AUX Voltage Registers wakeup_sleep(TOTAL_IC); error = LTC681x_rdaux(0,TOTAL_IC,bms_ic); // Set to read back all aux registers check_error(error); print_aux(DATALOG_DISABLED); break; case 7: // Start Status ADC Measurement wakeup_sleep(TOTAL_IC); LTC681x_adstat(ADC_CONVERSION_MODE, STAT_CH_TO_CONVERT); LTC681x_pollAdc(); pc.printf("stat conversion completed"); pc.printf("\n\r"); break; case 8: // Read Status registers wakeup_sleep(TOTAL_IC); error = LTC681x_rdstat(0,TOTAL_IC,bms_ic); // Set to read back all aux registers check_error(error); print_stat(); break; case 9: // Loop Measurements pc.printf("transmit 'm' to quit"); wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); while (input != 'm') { if (pc.readable() > 0) { input = read_char(); } measurement_loop(DATALOG_DISABLED); wait_ms(MEASUREMENT_LOOP_TIME); } //print_menu(); break; case 10: // Run open wire self test print_pec(); break; case 11: // Read in raw configuration data LTC681x_reset_crc_count(TOTAL_IC,bms_ic); break; case 12: // Run the ADC/Memory Self Test wakeup_sleep(TOTAL_IC); error = LTC681x_run_cell_adc_st(CELL,ADC_CONVERSION_MODE,bms_ic); pc.printf("%d",error); pc.printf(" : errors detected in Digital Filter and CELL Memory \n"); wakeup_sleep(TOTAL_IC); error = LTC681x_run_cell_adc_st(AUX,ADC_CONVERSION_MODE, bms_ic); pc.printf("%d",error); pc.printf(" : errors detected in Digital Filter and AUX Memory \n"); wakeup_sleep(TOTAL_IC); error = LTC681x_run_cell_adc_st(STAT,ADC_CONVERSION_MODE, bms_ic); pc.printf("%d",error); pc.printf(" : errors detected in Digital Filter and STAT Memory \n"); print_menu(); break; case 13: // Enable a discharge transistor pc.printf("Please enter the Spin number"); readIC = (int8_t)read_int(); LTC6811_set_discharge(readIC,TOTAL_IC,bms_ic); wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); print_config(); break; case 14: // Clear all discharge transistors clear_discharge(TOTAL_IC,bms_ic); wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); print_config(); break; case 15: // Clear all ADC measurement registers wakeup_sleep(TOTAL_IC); LTC681x_clrcell(); LTC681x_clraux(); LTC681x_clrstat(); pc.printf("All Registers Cleared\n"); break; case 16: // Run the Mux Decoder Self Test wakeup_sleep(TOTAL_IC); LTC681x_diagn(); wait_ms(5); error = LTC681x_rdstat(0,TOTAL_IC,bms_ic); // Set to read back all aux registers check_error(error); error = 0; for (int ic = 0; ic<TOTAL_IC; ic++) { if (bms_ic[ic].stat.mux_fail[0] != 0) error++; } if (error==0) pc.printf("Mux Test: PASS "); else pc.printf("Mux Test: FAIL "); break; case 17: // Run ADC Overlap self test wakeup_sleep(TOTAL_IC); error = (int8_t)LTC681x_run_adc_overlap(TOTAL_IC,bms_ic); if (error==0) pc.printf("Overlap Test: PASS "); else pc.printf("Overlap Test: FAIL"); break; case 18: // Run ADC Redundancy self test wakeup_sleep(TOTAL_IC); error = LTC681x_run_adc_redundancy_st(ADC_CONVERSION_MODE,AUX,TOTAL_IC, bms_ic); pc.printf("%d",error); pc.printf(" : errors detected in AUX Measurement \n"); wakeup_sleep(TOTAL_IC); error = LTC681x_run_adc_redundancy_st(ADC_CONVERSION_MODE,STAT,TOTAL_IC, bms_ic); pc.printf("%d",error); pc.printf(" : errors detected in STAT Measurement \n"); break; case 19: LTC681x_run_openwire(TOTAL_IC, bms_ic); print_open(); break; case 20: //Datalog print option Loop Measurements pc.printf("transmit 'm' to quit"); wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); while (input != 'm') { if (pc.readable() > 0) { input = read_char(); } measurement_loop(DATALOG_ENABLED); wait_ms(MEASUREMENT_LOOP_TIME); } print_menu(); break; case 'm': //prints menu print_menu(); break; default: pc.printf("Incorrect Option\n"); break; } } void measurement_loop(uint8_t datalog_en) { int8_t error = 0; if (WRITE_CONFIG == ENABLED) { wakeup_sleep(TOTAL_IC); LTC681x_wrcfg(TOTAL_IC,bms_ic); print_config(); } if (READ_CONFIG == ENABLED) { wakeup_sleep(TOTAL_IC); error = LTC681x_rdcfg(TOTAL_IC,bms_ic); check_error(error); print_rxconfig(); } if (MEASURE_CELL == ENABLED) { wakeup_idle(TOTAL_IC); LTC681x_adcv(ADC_CONVERSION_MODE,ADC_DCP,CELL_CH_TO_CONVERT); LTC681x_pollAdc(); wakeup_idle(TOTAL_IC); error = LTC681x_rdcv(0, TOTAL_IC,bms_ic); check_error(error); print_cells(datalog_en); } if (MEASURE_AUX == ENABLED) { wakeup_idle(TOTAL_IC); LTC681x_adax(ADC_CONVERSION_MODE , AUX_CH_ALL); LTC681x_pollAdc(); wakeup_idle(TOTAL_IC); error = LTC681x_rdaux(0,TOTAL_IC,bms_ic); // Set to read back all aux registers check_error(error); print_aux(datalog_en); } if (MEASURE_STAT == ENABLED) { wakeup_idle(TOTAL_IC); LTC681x_adstat(ADC_CONVERSION_MODE, STAT_CH_ALL); LTC681x_pollAdc(); wakeup_idle(TOTAL_IC); error = LTC681x_rdstat(0,TOTAL_IC,bms_ic); // Set to read back all aux registers check_error(error); print_stat(); } if (PRINT_PEC == ENABLED) { print_pec(); } } /*!********************************* \brief Prints the main menu ***********************************/ void print_menu() { pc.printf("Please enter LTC6811 Command\n"); pc.printf("Write Configuration: 1 | Reset PEC Counter: 11\n"); pc.printf("Read Configuration: 2 | Run ADC Self Test: 12\n"); pc.printf("Start Cell Voltage Conversion: 3 | Set Discharge: 13\n"); pc.printf("Read Cell Voltages: 4 | Clear Discharge: 14\n"); pc.printf("Start Aux Voltage Conversion: 5 | Clear Registers: 15\n"); pc.printf("Read Aux Voltages: 6 | Run Mux Self Test: 16\n"); pc.printf("Start Stat Voltage Conversion: 7 | Run ADC overlap Test: 17\n"); pc.printf("Read Stat Voltages: 8 | Run Digital Redundancy Test: 18\n"); pc.printf("loop Measurements: 9 | Run Open Wire Test: 19\n"); pc.printf("Read PEC Errors: 10 | Loop measurements with datalog output: 20\n"); pc.printf("\r"); pc.printf("Please enter command: \n"); pc.printf("\r"); } /*!************************************************************ \brief Prints cell voltage codes to the pc port *************************************************************/ void print_cells(uint8_t datalog_en) { for (int current_ic = 0 ; current_ic < TOTAL_IC; current_ic++) { if (datalog_en == 0) { pc.printf(" IC "); pc.printf("%d",current_ic+1); pc.printf(", "); for (int i=0; i<bms_ic[0].ic_reg.cell_channels; i++) { pc.printf(" C"); pc.printf("%d",i+1); pc.printf(":"); pc.printf("%.4f",bms_ic[current_ic].cells.c_codes[i]*0.0001); pc.printf(","); } pc.printf("\r"); } else { pc.printf("Cells, "); for (int i=0; i<bms_ic[0].ic_reg.cell_channels; i++) { pc.printf("%.4f",bms_ic[current_ic].cells.c_codes[i]*0.0001); pc.printf(","); } } } pc.printf("\n\r"); } /*!**************************************************************************** \brief Prints Open wire test results to the pc port *****************************************************************************/ void print_open() { for (int current_ic =0 ; current_ic < TOTAL_IC; current_ic++) { if (bms_ic[current_ic].system_open_wire == 0) { pc.printf("No Opens Detected on IC: "); pc.printf("%d",current_ic+1); pc.printf("\r"); } else { for (int cell=0; cell<bms_ic[0].ic_reg.cell_channels+1; cell++) { if ((bms_ic[current_ic].system_open_wire &(1<<cell))>0) { pc.printf("There is an open wire on IC: "); pc.printf("%d",current_ic + 1); pc.printf(" Channel: "); pc.printf("%d",cell); } } } } pc.printf("\n\r"); } /*!**************************************************************************** \brief Prints GPIO voltage codes and Vref2 voltage code onto the pc port *****************************************************************************/ void print_aux(uint8_t datalog_en) { for (int current_ic =0 ; current_ic < TOTAL_IC; current_ic++) { if (datalog_en == 0) { pc.printf(" IC "); pc.printf("%d",current_ic+1); for (int i=0; i < 5; i++) { pc.printf(" GPIO-"); pc.printf("%d",i+1); pc.printf(":"); pc.printf("%.4f",bms_ic[current_ic].aux.a_codes[i]*0.0001); pc.printf(","); } pc.printf(" Vref2"); pc.printf(":"); pc.printf("%.4f",bms_ic[current_ic].aux.a_codes[5]*0.0001); pc.printf("\n\r"); } else { pc.printf("AUX, "); for (int i=0; i < 6; i++) { pc.printf("%.4f",bms_ic[current_ic].aux.a_codes[i]*0.0001); pc.printf(","); } } } pc.printf("\n\r"); } /*!**************************************************************************** \brief Prints Status voltage codes and Vref2 voltage code onto the pc port *****************************************************************************/ void print_stat() { for (int current_ic =0 ; current_ic < TOTAL_IC; current_ic++) { pc.printf(" IC "); pc.printf("%d",current_ic+1); pc.printf(" SOC:"); pc.printf("%.4f",bms_ic[current_ic].stat.stat_codes[0]*0.0001*20); pc.printf(","); pc.printf(" Itemp:"); pc.printf("%.4f",bms_ic[current_ic].stat.stat_codes[1]*0.0001); pc.printf(","); pc.printf(" VregA:"); pc.printf("%.4f",bms_ic[current_ic].stat.stat_codes[2]*0.0001); pc.printf(","); pc.printf(" VregD:"); pc.printf("%.4f",bms_ic[current_ic].stat.stat_codes[3]*0.0001); pc.printf("\r"); } pc.printf("\n\r"); } /*!****************************************************************************** \brief Prints the configuration data that is going to be written to the LTC6811 to the pc port. ********************************************************************************/ void print_config() { int cfg_pec; pc.printf("Written Configuration: "); for (int current_ic = 0; current_ic<TOTAL_IC; current_ic++) { pc.printf(" IC "); pc.printf("%d",current_ic+1); pc.printf(": "); pc.printf("0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[0]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[1]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[2]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[3]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[4]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.tx_data[5]); pc.printf(", Calculated PEC: 0x"); cfg_pec = pec15_calc(6,&bms_ic[current_ic].config.tx_data[0]); serial_print_hex((uint8_t)(cfg_pec>>8)); pc.printf(", 0x"); serial_print_hex((uint8_t)(cfg_pec)); pc.printf("\r"); } pc.printf("\n\r"); } /*!***************************************************************** \brief Prints the configuration data that was read back from the LTC6811 to the pc port. *******************************************************************/ void print_rxconfig() { pc.printf("Received Configuration "); for (int current_ic=0; current_ic<TOTAL_IC; current_ic++) { pc.printf(" IC "); pc.printf("%d",current_ic+1); pc.printf(": 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[0]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[1]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[2]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[3]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[4]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[5]); pc.printf(", Received PEC: 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[6]); pc.printf(", 0x"); serial_print_hex(bms_ic[current_ic].config.rx_data[7]); pc.printf("\r"); } pc.printf("\n\r"); } void print_pec() { for (int current_ic=0; current_ic<TOTAL_IC; current_ic++) { pc.printf(""); pc.printf("%d",bms_ic[current_ic].crc_count.pec_count); pc.printf(" : PEC Errors Detected on IC"); pc.printf("%d",current_ic+1); } pc.printf("\n\r"); } void serial_print_hex(uint8_t data) { if (data< 16) { pc.printf("0"); pc.printf("%X",data); } else pc.printf("%X",data); } //Function to check error flag and print PEC error message void check_error(int error) { if (error == -1) { pc.printf("A PEC error was detected in the received data\n"); } }