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implemented can_hanlde_recieve_command correctly

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changed can_handle_send_status
This commit is contained in:
Hamza
2024-05-28 19:01:01 +02:00
parent 2c1171e830
commit a0e55c0f44
4 changed files with 83 additions and 33 deletions
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48
Core/Src/can.c
View File

@ -5,6 +5,8 @@
*/
#include "can.h"
#include "ADBMS_Abstraction.h"
#include "state_machine.h"
//#define CAN_ID_IN 0x501
//#define CAN_ID_OUT 0x502
@ -15,14 +17,54 @@ This function sends the status of the mvbms, the battery and of powerground.
once every 1s in states: INACTIVE, PRECHARGE, DISCHARGE, CHARGING, ERROR.
once every 0.5s in states: READY, ACTIVE.
with format of:
CAN Messages:
- MVBMS Status (1B), Powerground Status 0-100% (1 bit)
- Battery: SoC (1B), Pack Voltage (2B), Current (1B),
Min/Max. Cell Temp (ID, Min Temp, ID, Max Temp)(4B),
Min/Max Cell Voltage (ID, Min Voltage, ID, Max Voltage)(4B)
bit 0-2: status
bit 0-7:
bit 8-15: State of Charge from 0-100%
bit 16-31: Battery voltage
bit 32-47: Current measurement
bit 48-50: id of cell with highest temperature
bit 51-62: temperature of the cell with highest temperature (12 bits moved 4 bit to the left)
*/
void can_handle_send_status() {
static uint8_t data[8] = {};
data[0] = (state.current_state << 5); //save 5 bit since codes are from 0-6
uint8_t data[8] = {};
data[0] = (state.current_state << 5); // save 5 bit since codes are from 0-7 61 bits left
//data[1] = // in 8 bits from 0-100%
data[2] = mV_from_ADBMS6830(RELAY_BAT_SIDE_VOLTAGE); // Battery voltage 16 bit 45 bit
data[4] = CURRENT_MEASUREMENT; // 16 bit measurement
int8_t id = -1;
int16_t temp = INT16_MIN;
sm_check_cell_temps(&id, &temp);
data[6] = (id << 5) | (temp >> 4); // there are only 7 TMP1075
ftcan_transmit(CAN_ID_OUT, data, sizeof(data));
}
/*
can_handle_recieve_command() should only check if the message is valid and then hand it
to the sm_handle_ams_in() which handles the state machine transition.
*/
void can_handle_recieve_command(const uint8_t *data){
ftcan_msg_received_cb(0x501, 16, data);
if (data[0] == 0x00 && data[1] == 0x00){
sm_handle_ams_in(data);
} else if (data[0] == 0b1000000 && data[1] == 0x00){
sm_handle_ams_in(data);
} else if (data[0] == 0b1100000 && data[1] <= 100) {
sm_handle_ams_in(data);
}
}
/*
implements the _weak method ftcan_msg_recieved_cb() which throws an interrupt when a CAN message is recieved.
it only checks if the id is and datalen is correct thans hands data over to can_handle_recieve_command().
*/
void ftcan_msg_received_cb(uint16_t id, size_t datalen, const uint8_t *data){
if (id == 0x501 && datalen == 16){
can_handle_recieve_command(data);
}
}

49
Core/Src/state_machine.c
View File

@ -1,24 +1,23 @@
#include "state_machine.h"
#include "ADBMS_LL_Driver.h"
#include "TMP1075.h"
#include "common_defs.h"
#include <math.h>
StateHandle state;
static bool relay_closed = 0;
static bool precharge_closed = 0;
static int16_t RELAY_BAT_SIDE_VOLTAGE = 0;
static int16_t RELAY_ESC_SIDE_VOLTAGE = 0;
static int16_t CURRENT_MEASUREMENT_VOLTAGE = 0;
static int16_t timestamp;
void sm_init(){
state.current_state = STATE_INACTIVE;
state.target_state = STATE_INACTIVE;
state.error_source = 0;
RELAY_BAT_SIDE_VOLTAGE = module.auxVoltages[0];
RELAY_ESC_SIDE_VOLTAGE = module.auxVoltages[1];
CURRENT_MEASUREMENT_VOLTAGE = module.auxVoltages[2];
}
void sm_update(){
sm_handle_ams_in();
RELAY_BAT_SIDE_VOLTAGE = module.auxVoltages[0];
RELAY_ESC_SIDE_VOLTAGE = module.auxVoltages[1];
CURRENT_MEASUREMENT_VOLTAGE = module.auxVoltages[2];
switch (state.current_state) {
case STATE_INACTIVE:
state.current_state = sm_update_inactive(); // monitor only
@ -65,7 +64,7 @@ State sm_update_precharge(){
case STATE_INACTIVE: // if CAN Signal 0000 0000 then immidiete shutdown
return STATE_DISCHARGE;
case STATE_READY:
if (RELAY_BAT_SIDE_VOLTAGE == RELAY_ESC_SIDE_VOLTAGE)
if (roundf(RELAY_BAT_SIDE_VOLTAGE) == roundf(RELAY_ESC_SIDE_VOLTAGE))
return STATE_READY;
default:
return STATE_PRECHARGE;
@ -97,7 +96,7 @@ State sm_update_active(){
State sm_update_discharge(){
switch (state.target_state) {
case STATE_INACTIVE:
if (RELAY_ESC_SIDE_VOLTAGE == 0)
if (RELAY_ESC_SIDE_VOLTAGE < 12)
return STATE_INACTIVE;
case STATE_PRECHARGE: // if CAN Signal 1000 0000 then get ready
return STATE_PRECHARGE;
@ -182,9 +181,23 @@ void sm_set_relay(Relay relay, bool closed){
}
}
void sm_handle_ams_in(){
uint8_t data[2] = {};
can_handle_recieve_command(&data);
void sm_check_charging(){
if (RELAY_BAT_SIDE_VOLTAGE < RELAY_ESC_SIDE_VOLTAGE && timestamp == 0)
timestamp = HAL_GetTick() + 5000;
if (timestamp < HAL_GetTick())
state.target_state = STATE_CHARGING_PRECHARGE;
}
void sm_check_cell_temps(int8_t *id, int16_t *temp){
for (int i = 0; i < N_TEMP_SENSORS; i++) {
if (tmp1075_temps[i] > *temp){
*id = i;
}
}
}
void sm_handle_ams_in(const uint8_t *data){
switch (data[0]) {
case 0b00000000:
if (state.current_state != STATE_INACTIVE){
@ -210,6 +223,7 @@ void sm_handle_ams_in(){
void sm_set_error(ErrorKind error_kind, bool is_errored){}
#warning TODO: add error checking for everything here
void sm_check_errors(){
if (module.status.THSD == 1) {
state.error_type.bms_overtemp = 1;
@ -218,10 +232,3 @@ void sm_check_errors(){
state.error_source = (1 << 10);
}
}
void sm_charging_check(){
if (RELAY_BAT_SIDE_VOLTAGE < RELAY_ESC_SIDE_VOLTAGE && timestamp == 0)
timestamp = HAL_GetTick() + 5000;
if (timestamp < HAL_GetTick())
state.target_state = STATE_CHARGING_PRECHARGE;
}