Hi,
I am trying to communicate using SPI with the EVAL BOARD of ADBMS6830 utilizing a NUCLEO-F401RE as the Main and the EVAL BOARD of ADBMS6822. I have connected 16 1kΩ resistors between each cpin and supplied the board with 15V (Also tried 25V but it did not make a difference). Then using the cable provided i have connected the isoSPI A port of the ADBMS6830 Eval Board with the MAIN port of the ADBMS6822 Eval Board. I have checked my hardware connections multiple times and they seem to be correct. What i am trying to do is send a simple ADC command to the ADBMS6830 in order to measure the "cell voltage", but the chip does not seem to be responding to any commands that i send (I just receive 0xFF).
Please provide any information on how to resolve the issue.
IMPORTANT NOTE!!: When using PLADC the code gets stuck on the while loop because the chip is still not responsive, i have tried without the PLADC and i still cannot communicate
Code used:
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
// CSB Control
#define SP1_CS_HIGH() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6,GPIO_PIN_SET)
#define SP1_CS_LOW() HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6,GPIO_PIN_RESET)
#define WAKEUP_TIME 2
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint8_t data_Rx[12]={0};
uint8_t debug=0;
HAL_StatusTypeDef SPI_STATUS=HAL_OK;
uint16_t pec15Table[256];
uint16_t CRC15_POLY = 0x4599;
void init_PEC15_Table()
{
uint16_t remainder;
for (int i = 0; i < 256; i++)
{
remainder = i << 7;
for (int bit = 8; bit > 0; --bit)
{
if (remainder & 0x4000)
{
remainder = ((remainder << 1));
remainder = (remainder ^ CRC15_POLY);
}
else
remainder = ((remainder << 1));
}
pec15Table[i] = remainder & 0xFFFF;
}
}
uint16_t pec15(const uint8_t *data , const uint8_t len)
{
uint16_t remainder,address;
remainder = 16; //PEC seed
for (uint8_t i = 0; i < len; i++){
address = ((remainder >> 7) ^ data[i]) & 0xFF; // calculate PEC table address
remainder = (remainder << 8 ) ^ pec15Table[address];
}
return (remainder * 2); // The CRC15 has a 0 in the LSB so the final value must be multiplied by 2
}
void ADBMS6830_WAKEUP(){
SP1_CS_LOW();
HAL_Delay(WAKEUP_TIME);
SP1_CS_HIGH();
HAL_Delay(WAKEUP_TIME);
}
void ADBMS6830_COMMAND(uint16_t command){
uint8_t cmd0 = command >> 8;
uint8_t cmd1 = command;
uint8_t cmd[2]={cmd0,cmd1};
uint16_t cmd_pec = pec15(cmd, 2);
uint8_t cmd_pec0 = cmd_pec >> 8;
uint8_t cmd_pec1 = cmd_pec;
uint8_t data_Tx[4]={cmd0, cmd1, cmd_pec0, cmd_pec1};
SP1_CS_LOW();
HAL_Delay(10);
HAL_SPI_Transmit(&hspi1, data_Tx, sizeof(data_Tx), HAL_TIMEOUT);
SP1_CS_HIGH();
}
void ADBMS6830_PLADC(){
uint8_t received = 0x00;
uint16_t PLADC=0x0718;
uint8_t cmd0 = PLADC >> 8;
uint8_t cmd1 = PLADC;
uint8_t cmd[2]={cmd0,cmd1};
uint16_t cmd_pec = pec15(cmd, 2);
uint8_t cmd_pec0 = cmd_pec >> 8;
uint8_t cmd_pec1 = cmd_pec;
uint8_t data_Tx[4]={cmd0, cmd1, cmd_pec0, cmd_pec1};
SP1_CS_LOW();
HAL_Delay(10);
HAL_SPI_Transmit(&hspi1,data_Tx,sizeof(data_Tx),HAL_TIMEOUT);
HAL_Delay(10);
do{
HAL_SPI_Receive(&hspi1,&received,1,HAL_TIMEOUT);
}while(!(received == 0x00));
SP1_CS_HIGH();
}
void ADBMS6830_ADC_DEFAULT(){
uint16_t ADCV_DEFAULT=0x0260; //This is the default command in HEX all user-configurable bits are set to 0
ADBMS6830_COMMAND(ADCV_DEFAULT);
}
void ADBMS6830_CELL_MEASSURE(){
ADBMS6830_WAKEUP();
ADBMS6830_ADC_DEFAULT();
ADBMS6830_PLADC();
}
void ADBMS6830_READ_DATA(uint16_t command,uint8_t* data_recieved){
uint8_t cmd0 = command >> 8;
uint8_t cmd1 = command;
uint8_t cmd[2]={cmd0,cmd1};
uint16_t cmd_pec = pec15(cmd, 2);
uint8_t cmd_pec0 = cmd_pec >> 8;
uint8_t cmd_pec1 = cmd_pec;
uint8_t data_Tx[12]={0};
data_Tx[0] = cmd0;
data_Tx[1] = cmd1;
data_Tx[2] = cmd_pec0;
data_Tx[3] = cmd_pec1;
SP1_CS_LOW();
HAL_Delay(10);
HAL_SPI_TransmitReceive(&hspi1, data_Tx, data_recieved, sizeof(data_Tx), HAL_TIMEOUT);
SP1_CS_HIGH();
}
void ADBMS6830_CELL_READ(uint8_t *data_Rx){
uint16_t RDCVA=0x0004;
ADBMS6830_WAKEUP();
ADBMS6830_READ_DATA(RDCVA, data_Rx);
}
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
init_PEC15_Table();
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI1_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1){
ADBMS6830_CELL_MEASSURE();
ADBMS6830_CELL_READ(data_Rx);
HAL_Delay(400);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief SPI1 Initialization Function
* @param None
* @retval None
*/
static void MX_SPI1_Init(void)
{
/* USER CODE BEGIN SPI1_Init 0 */
/* USER CODE END SPI1_Init 0 */
/* USER CODE BEGIN SPI1_Init 1 */
/* USER CODE END SPI1_Init 1 */
/* SPI1 parameter configuration*/
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 10;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN SPI1_Init 2 */
/* USER CODE END SPI1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(SP1_CSB_GPIO_Port, SP1_CSB_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : SP1_CSB_Pin */
GPIO_InitStruct.Pin = SP1_CSB_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(SP1_CSB_GPIO_Port, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
