V1.11

Core/Inc/can.h

@@ -17,6 +17,8 @@ void can_init(CAN_HandleTypeDef* hcan);
 
 void can_handle_send_status();
 
+void can_handle_dump();
+
 void can_handle_recieve_command(const uint8_t *data);
 
 void ftcan_msg_received_cb(uint16_t id, size_t datalen, const uint8_t *data);

Core/Inc/eeprom.h

@@ -15,7 +15,7 @@ void eeprom_init(I2C_HandleTypeDef* hi2c);
 void eeprom_dump_status();
 void eeprom_write_status();
 
-HAL_StatusTypeDef eeprom_read(uint8_t* data, uint16_t address);
-HAL_StatusTypeDef eeprom_write(uint8_t* data, uint16_t address);
+HAL_StatusTypeDef eeprom_read(uint8_t* data, uint16_t data_length);
+HAL_StatusTypeDef eeprom_write(uint8_t* data, uint16_t data_length);
 
 #endif // INC_EEPROM_H_

Core/Inc/state_machine.h

@@ -12,6 +12,7 @@
 #include <stdbool.h>
 #include "ADBMS_LL_Driver.h"
 #include <AMS_HighLevel.h>
+#include <eeprom.h>
 #include <errors.h>
 #include <PWM_control.h>
 #include <status_LED.h>
@@ -64,6 +65,7 @@ void sm_precharge_discharge_manager();
 void sm_powerground_manager();
 void sm_calibrate_powerground();
 void sm_balancing();
+void sm_eeprom_write_status();
 
 void sm_check_errors();
 void sm_set_error_source();

Core/Src/can.c

@@ -7,11 +7,14 @@
 
 #include "can.h"
 #include "PWM_control.h"
+#include "can-halal.h"
+#include "eeprom.h"
 #include <stdint.h>
 
 #define CAN_ID_IN   0x501
 #define CAN_ID_OUT  0x502
 #define CAN_STATUS_FREQ 100
+#define CAN_DUMP_FREQ 10;
 
 uint8_t last_message[8];
 static uint32_t can_delay_manager = 0;
@@ -86,43 +89,8 @@ void can_handle_send_status() {
   //data[7] = (module.cellVoltages[7]);
   //data[7] = state.error_source;
   ftcan_transmit(CAN_ID_OUT, data, sizeof(data));
+  
   /*
-  int8_t id_lowest_temp = -1;
-  int16_t lowest_temp = INT16_MIN;
-  for (int i = 0; i < N_TEMP_SENSORS; i++) {
-    if (tmp1075_temps[i] < lowest_temp){
-      id_lowest_temp = i;
-      lowest_temp = tmp1075_temps[i];
-    }
-  }
-
-  int8_t id_lowest_volt = -1;
-  int16_t lowest_volt = INT16_MIN;
-  int8_t id_highest_volt = -1;
-  int16_t highest_volt = INT16_MIN;
-
-  for (int i = 0; i < module.sumOfCellMeasurements; i++) {
-    if (sm_return_cell_voltage(i) < lowest_temp){
-      id_lowest_volt = i;
-      lowest_volt = sm_return_cell_voltage(i);
-    }
-    if (sm_return_cell_voltage(i) > highest_temp){
-      id_highest_volt = i;
-      highest_volt = sm_return_cell_voltage(i);
-    }
-  }
-
-  data[0] = ((id_highest_temp & 0x0F) << 4 | (id_lowest_temp & 0x0F));
-  data[1] = ((lowest_temp) >> 8);
-  data[2] = ((lowest_temp & 0x00F0) | (id_lowest_volt & 0x0F));
-  data[3] = (lowest_volt >> 8);
-  data[4] = ((lowest_volt & 0x00F0) | (id_highest_volt & 0x0F));
-  data[5] = ((highest_volt >> 8));
-  data[6] = ((highest_volt & 0x00F0));
-  data[7] = 0;
-  
-  ftcan_transmit(CAN_ID_OUT, data, sizeof(data));
-
   021E  30
   0232  50
   0238  60
@@ -165,6 +133,21 @@ void can_handle_recieve_command(const uint8_t *data){
   }
 }
 
+void can_handle_dump() {
+  while (1){
+    uint8_t* data;
+    if (can_delay_manager > HAL_GetTick())
+      continue;
+    else
+      can_delay_manager = HAL_GetTick() + CAN_STATUS_FREQ;
+    eeprom_read(data, 64);
+    for (int i = 0; i < 63; i += 8) {
+      ftcan_transmit(CAN_ID_OUT, data[i], 8);
+    }
+    ftcan_transmit(CAN_ID_OUT, 0, 1);
+  }
+}
+
 /*
 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().

Core/Src/eeprom.c

@@ -5,23 +5,24 @@
  *      Author: Hamza
  */
  
+#include "ADBMS_LL_Driver.h"
 #include "TMP1075.h"
+#include "stm32f3xx_hal_def.h"
 #include <eeprom.h>
 
 // see Datasheet for these values
-#define EEPROM_I2C_ADDR             0xA0    
-#define EEPROM_WRITE_FREQ_INACTIVE  1000   
-#define EEPROM_WRITE_FREQ_ACTIVE    100
-#define EERROM_MEMORY_ADDR_SIZE     2
-#define EEPROM_MEMORY_SIZE          1024000 // in bits
-#define EEPROM_PAGE_SIZE            256     // in bits
+#define EEPROM_I2C_ADDR             0xA4    // 0xA4 for the the first 2⁸ addresses and 0xA6 for the the last 2⁸ addresses
+#define EERROM_MEMORY_ADDR_SIZE     2       // it is controlled by A17 in the address Byte, see datasheet
+#define EEPROM_MEMORY_SIZE          131072  // in bytes
+#define EEPROM_PAGE_SIZE            32      // in bytes
 
 static I2C_HandleTypeDef* hi2c;
-uint32_t current_address;
+uint32_t write_address, read_address;
 
 void eeprom_init(I2C_HandleTypeDef* handle) {
   hi2c = handle;
-  current_address = 0;
+  write_address = 0;
+  read_address = 0;
 }
 
 void eeprom_write_status(){
@@ -40,39 +41,57 @@ void eeprom_write_status(){
   data[9] = (CURRENT_MEASUREMENT);
 
   // data 10-35
-  for (int i = 10; i < 36; i+=2) {
+  for (int i = 10; i < 36; i += 2) {
     data[i]  = ((int) module.auxVoltages[i]) >> 8;
-    data[i+1]  = ((int) module.auxVoltages[i]);
+    data[i+1]  = ((int) module.auxVoltages[i+1]);
   }
-  for (int i = 37; i < 50; i++) {
-    data[i] = tmp1075_temps[i];
+  for (int i = 37; i < 63; i += 2) {
+    data[i] = (tmp1075_temps[i]) >> 8;
+    data[i+1] = (tmp1075_temps[i+1]);
   }
-  eeprom_write(data, current_address);
-  current_address++;
+  eeprom_write(data, 64);
+  write_address++;
 }
 
-HAL_StatusTypeDef eeprom_read(uint8_t* data, uint16_t address){
-  HAL_StatusTypeDef status = HAL_I2C_Mem_Read(
-    hi2c, EEPROM_I2C_ADDR, address, 
-    2, data, sizeof(data), 50);
-  return status;
-}
-
-HAL_StatusTypeDef eeprom_write(uint8_t* data, uint16_t address){
+HAL_StatusTypeDef eeprom_read(uint8_t* data, uint16_t data_length){
   HAL_StatusTypeDef status = HAL_OK; 
   HAL_GPIO_WritePin(EEPROM___WC__GPIO_Port, EEPROM___WC__Pin, GPIO_PIN_RESET);
-  if (address < 65535){
+  for (size_t i = 0; i < data_length; i++) {
+    if (read_address <= 65535){
       status = HAL_I2C_Mem_Write(
         hi2c, EEPROM_I2C_ADDR,
-      current_address, EERROM_MEMORY_ADDR_SIZE,
-      data, sizeof(data), 50);
-    current_address += sizeof(data); 
-  } else if (address > 65535) {
+        read_address, EERROM_MEMORY_ADDR_SIZE,
+        &data[i], 1, 10);
+      
+    } else if (read_address > 65535) {
         status = HAL_I2C_Mem_Write(
-      hi2c, EEPROM_I2C_ADDR,
-      current_address, EERROM_MEMORY_ADDR_SIZE,
-      data, sizeof(data), 50);
-    current_address += sizeof(data); 
+        hi2c, EEPROM_I2C_ADDR + 2,
+        read_address, EERROM_MEMORY_ADDR_SIZE,
+        &data[i], 1, 10);
+    }
+    read_address++; 
+  }
+  HAL_GPIO_WritePin(EEPROM___WC__GPIO_Port, EEPROM___WC__Pin, GPIO_PIN_SET);
+  return status;
+}
+
+HAL_StatusTypeDef eeprom_write(uint8_t* data, uint16_t data_length){
+  HAL_StatusTypeDef status = HAL_OK; 
+  HAL_GPIO_WritePin(EEPROM___WC__GPIO_Port, EEPROM___WC__Pin, GPIO_PIN_RESET);
+  for (size_t i = 0; i < data_length; i++) {
+    if (write_address < 65535){
+      status = HAL_I2C_Mem_Write(
+        hi2c, EEPROM_I2C_ADDR,
+        write_address, EERROM_MEMORY_ADDR_SIZE,
+        &data[i], 1, 10);
+      
+    } else if (write_address > 65535) {
+        status = HAL_I2C_Mem_Write(
+        hi2c, EEPROM_I2C_ADDR + 2,
+        write_address, EERROM_MEMORY_ADDR_SIZE,
+        &data[i], 1, 10);
+    }
+    write_address++; 
   }
   HAL_GPIO_WritePin(EEPROM___WC__GPIO_Port, EEPROM___WC__Pin, GPIO_PIN_SET);
   return status;

Core/Src/state_machine.c

@@ -7,6 +7,9 @@
  
 #include "state_machine.h"
 #include "PWM_control.h"
+#include "eeprom.h"
+#include "main.h"
+#include <stdint.h>
 
 // Time to wait after reaching 95% of battery voltage before exiting precharge
 // Set this to 1000 in scruti to demonstrate the voltage on the multimeter
@@ -18,7 +21,10 @@
 // Time to wait between closing relays
 #define RELAY_CLOSE_WAIT 10 // ms
 // Max time to wait for CAN messages. If we reach it then we emergency shutdown.
-#define CAN_TIMEOUT 100000
+#define CAN_TIMEOUT 1000
+// waiting time between to eeprom writes
+#define EEPROM_WRITE_FREQ_INACTIVE  10000   
+#define EEPROM_WRITE_FREQ_ACTIVE    1000
 
 StateHandle state;
 int32_t RELAY_BAT_SIDE_VOLTAGE;
@@ -30,6 +36,7 @@ float base_offset = 0;
 uint32_t precharge_timer;
 uint32_t discharge_timer;
 uint32_t CAN_timer;
+uint32_t EEPROM_timer;
 
 uint32_t powerground_softstart_timer;
 uint32_t powerground_calibration_timer;
@@ -54,8 +61,8 @@ void sm_update(){
   sm_precharge_discharge_manager();
   sm_calibrate_powerground();
   sm_powerground_manager();
-  //if (CAN_timer < HAL_GetTick())
-  //  state.current_state = state.target_state = STATE_ERROR;
+  if (CAN_timer < HAL_GetTick())
+    state.current_state = state.target_state = STATE_ERROR;
 
   if (state.current_state == STATE_INACTIVE || state.current_state == STATE_ERROR){
     CURRENT_MEASUREMENT = (module.auxVoltages[0] > 2494) ? (module.auxVoltages[0] - (2494.0)) * (300.0) : 0;
@@ -214,6 +221,21 @@ void sm_calibrate_powerground(){
   }
 }
 
+void sm_program_powerground(){
+  powerground_calibration_timer = HAL_GetTick() + 5000;
+  while (powerground_calibration_timer > HAL_GetTick()){}
+  state.current_state = STATE_PRECHARGE;
+  sm_update();  
+
+  powerground_calibration_timer = HAL_GetTick() + PRECHARGE_DURATION + 1000;
+  PWM_powerground_control(100);
+  while (powerground_calibration_timer > HAL_GetTick()){}
+  sm_update();
+  while (1) {
+    
+  }
+}
+
 void sm_balancing(){
   for (int i = 0; i < 13; i++) {
     amsConfigBalancing((1 << i), 0xF);
@@ -221,6 +243,14 @@ void sm_balancing(){
   amsStartBalancing(0);
 }
 
+void sm_eeprom_write_status(){
+  if (EEPROM_timer < HAL_GetTick()){
+    eeprom_write_status();
+    EEPROM_timer = HAL_GetTick() + EEPROM_WRITE_FREQ_INACTIVE;
+  }
+}
+
+
 #warning TODO: add error checking for everything here
 void sm_check_errors(){  
   state.error_type.temperature_error = (error_data.error_sources & (1 << 0) || error_data.error_sources & (1 << 1) || error_data.error_sources & (1 << 4)) ? 1 : 0;