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部件号：INA229 我希望你们做得好。 我想将 INA229传感器与 STM324F MCU 配合使用。 我的主要代码部分如下所示。 我正在尝试阅读制造商 ID，该 ID 应该是数据表中提到的“TI”。 但是，我读取的值为42和36 (以十进制表示)(分别为第一个字节和第二个字节)。 我的电路设计如下。
请提前感谢。
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi2;
/* USER CODE BEGIN PV */
uint8_t config = 0x00;
uint16_t config_write = 0xC000;
const uint8_t INA229_DeviceID_address = 0b11111101;
const uint8_t INA229_Current_address = 0b00011101;
const uint8_t INA229_Vshunt_address = 0x11;
const uint8_t INA229_ManufacturerID_address = 0xF9U;
uint32_t INA229_Vshunt_result;
uint16_t INA229_Current_result;
uint8_t ManufacturerID[3];
uint16_t INA229_DeviceID;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI2_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* 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 */
/* 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_USB_DEVICE_Init();
MX_SPI2_Init();
/* USER CODE BEGIN 2 */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_SET);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi2, (uint8_t *)&config, 1, 100);
HAL_SPI_Transmit(&hspi2, (uint8_t *)&config_write, 2, 100);
//HAL_SPI_Receive(&hspi2, (uint8_t *) config, 3, 100);
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_SET);
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
ManufacturerID[0] = 0;
ManufacturerID[1] = 0;
// SPI Current Value Read
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi2, (uint8_t *)&INA229_ManufacturerID_address, 1, 100);
HAL_SPI_Receive(&hspi2, (uint8_t *) ManufacturerID, 2, 100);
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_SET);
// SPI Current Value read finished
CDC_Transmit_FS(ManufacturerID, 3);
//HAL_Delay(100);
}
/* USER CODE END 3 */
}
