尝试与我的 BNO055 IMU 进行一些 i2c 通信，但似乎无法通过 MX_I2C1_Init 函数
trying to do some i2c communication with my BNO055 IMU but cant seem to get passed the MX_I2C1_Init function
我一直在尝试与我的 BNO055 IMU 进行一些 i2c 通信，但是当我 运行 在调试时似乎无法通过 MX_I2C1_Init 函数。
它给我这个错误：
Error: jtag status contains invalid mode value - communication failure
Polling target STM32F303RETx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 6300ms
Info : Previous state query failed, trying to reconnect
Error: jtag status contains invalid mode value - communication failure
Polling target STM32F303RETx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 6300ms
shutdown command invoked
我目前使用的是 nucleo stm32F303RE 开发板，我的基本代码由 cubemx 生成。它为 hal 函数、i2c1 引脚、uart4 引脚生成了代码。这是我的代码。
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f3xx_hal.h"
/* USER CODE BEGIN Includes */
#define DEV_ADD (0x28<<1)
#define UNIT_SELECT_ADD 0x3B
#define UNIT_SELECT_DATA 0x68
#define OPR_MODE_ADD 0x3D
#define OPR_MODE_DATA 0xFC
#define EUL_X_ADD 0x1A
#define EUL_Y_ADD 0x1C
#define EUL_Z_ADD 0x1E
#define LIA_X_ADD 0x28
#define LIA_Y_ADD 0x2A
#define LIA_Z_ADD 0x2C
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
UART_HandleTypeDef huart4;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
unsigned char eul_x_msb = 0, eul_x_lsb = 0, eul_y_msb = 0, eul_y_lsb = 0, eul_z_msb = 0, eul_z_lsb = 0;
unsigned char lia_x_msb = 0, lia_x_lsb = 0, lia_y_msb = 0, lia_y_lsb = 0, lia_z_msb = 0, lia_z_lsb = 0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_UART4_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void i2c_init_function(void){
unsigned char aRxBuffer[3], txBuffer[3];
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, UNIT_SELECT_ADD, I2C_MEMADD_SIZE_8BIT, aRxBuffer, 1, 100);
aRxBuffer[0] = aRxBuffer[0] & UNIT_SELECT_DATA;
txBuffer[0] = UNIT_SELECT_ADD;
txBuffer[1] = aRxBuffer[0];
HAL_I2C_Master_Transmit(&hi2c1, DEV_ADD, txBuffer, 1, 100);
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, OPR_MODE_ADD, I2C_MEMADD_SIZE_8BIT, aRxBuffer, 1, 100);
aRxBuffer[0] = aRxBuffer[0] & OPR_MODE_DATA;
txBuffer[0] = OPR_MODE_ADD;
txBuffer[1] = aRxBuffer[0];
HAL_I2C_Master_Transmit(&hi2c1, DEV_ADD, txBuffer, 1, 100);
}
void eul_x_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_X_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void eul_y_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_Y_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void eul_z_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_Z_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_x_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_X_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_y_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_Y_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_z_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_Z_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
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_I2C1_Init();
MX_UART4_Init();
/* USER CODE BEGIN 2 */
i2c_init_function();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
unsigned char buff[3];
eul_x_read(buff);
HAL_Delay(25);
eul_x_lsb = buff[0];
eul_x_msb = buff[1];
eul_y_read(buff);
HAL_Delay(25);
eul_y_lsb = buff[0];
eul_y_msb = buff[1];
eul_z_read(buff);
HAL_Delay(25);
eul_z_lsb = buff[0];
eul_z_msb = buff[1];
lia_x_read(buff);
HAL_Delay(25);
lia_x_lsb = buff[0];
lia_x_msb = buff[1];
lia_y_read(buff);
HAL_Delay(25);
lia_y_lsb = buff[0];
lia_y_msb = buff[1];
lia_z_read(buff);
HAL_Delay(25);
lia_z_lsb = buff[0];
lia_z_msb = buff[1];
unsigned char mapping[12] = {eul_x_msb, eul_x_lsb, eul_y_msb, eul_y_lsb, eul_z_msb, eul_z_lsb,
lia_x_msb, lia_x_lsb, lia_y_msb, lia_y_lsb, lia_z_msb, lia_z_lsb};
HAL_UART_Transmit(&huart4, mapping, 12, 100);
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_UART4|RCC_PERIPHCLK_I2C1;
PeriphClkInit.Uart4ClockSelection = RCC_UART4CLKSOURCE_PCLK1;
PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x2000090E;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* UART4 init function */
static void MX_UART4_Init(void)
{
huart4.Instance = UART4;
huart4.Init.BaudRate = 115200;
huart4.Init.WordLength = UART_WORDLENGTH_8B;
huart4.Init.StopBits = UART_STOPBITS_1;
huart4.Init.Parity = UART_PARITY_NONE;
huart4.Init.Mode = UART_MODE_TX_RX;
huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart4.Init.OverSampling = UART_OVERSAMPLING_16;
huart4.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart4.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart4) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/*Configure GPIO pins : PA0 PA1 PA2 PA3
PA4 */
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
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,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
我想通了 XD 我不小心将 JTags 时钟引脚用于我的 I2C 通信，所以当它进入 GPIO 初始化时调试器将停止工作 XD 我最初使用引脚 PA14 和 PA15。 PA14 是 JTAG 时钟。所以我将它们更改为 PB8 和 PB9 是 I2C1 通信的替代引脚选择。here's the pin out description that enlightened me
我一直在尝试与我的 BNO055 IMU 进行一些 i2c 通信，但是当我 运行 在调试时似乎无法通过 MX_I2C1_Init 函数。
它给我这个错误：
Error: jtag status contains invalid mode value - communication failure
Polling target STM32F303RETx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 6300ms
Info : Previous state query failed, trying to reconnect
Error: jtag status contains invalid mode value - communication failure
Polling target STM32F303RETx.cpu failed, trying to reexamine
Examination failed, GDB will be halted. Polling again in 6300ms
shutdown command invoked
我目前使用的是 nucleo stm32F303RE 开发板，我的基本代码由 cubemx 生成。它为 hal 函数、i2c1 引脚、uart4 引脚生成了代码。这是我的代码。
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f3xx_hal.h"
/* USER CODE BEGIN Includes */
#define DEV_ADD (0x28<<1)
#define UNIT_SELECT_ADD 0x3B
#define UNIT_SELECT_DATA 0x68
#define OPR_MODE_ADD 0x3D
#define OPR_MODE_DATA 0xFC
#define EUL_X_ADD 0x1A
#define EUL_Y_ADD 0x1C
#define EUL_Z_ADD 0x1E
#define LIA_X_ADD 0x28
#define LIA_Y_ADD 0x2A
#define LIA_Z_ADD 0x2C
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
UART_HandleTypeDef huart4;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
unsigned char eul_x_msb = 0, eul_x_lsb = 0, eul_y_msb = 0, eul_y_lsb = 0, eul_z_msb = 0, eul_z_lsb = 0;
unsigned char lia_x_msb = 0, lia_x_lsb = 0, lia_y_msb = 0, lia_y_lsb = 0, lia_z_msb = 0, lia_z_lsb = 0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_UART4_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void i2c_init_function(void){
unsigned char aRxBuffer[3], txBuffer[3];
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, UNIT_SELECT_ADD, I2C_MEMADD_SIZE_8BIT, aRxBuffer, 1, 100);
aRxBuffer[0] = aRxBuffer[0] & UNIT_SELECT_DATA;
txBuffer[0] = UNIT_SELECT_ADD;
txBuffer[1] = aRxBuffer[0];
HAL_I2C_Master_Transmit(&hi2c1, DEV_ADD, txBuffer, 1, 100);
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, OPR_MODE_ADD, I2C_MEMADD_SIZE_8BIT, aRxBuffer, 1, 100);
aRxBuffer[0] = aRxBuffer[0] & OPR_MODE_DATA;
txBuffer[0] = OPR_MODE_ADD;
txBuffer[1] = aRxBuffer[0];
HAL_I2C_Master_Transmit(&hi2c1, DEV_ADD, txBuffer, 1, 100);
}
void eul_x_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_X_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void eul_y_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_Y_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void eul_z_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, EUL_Z_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_x_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_X_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_y_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_Y_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
void lia_z_read(unsigned char * tab){
HAL_I2C_Mem_Read(&hi2c1, DEV_ADD, LIA_Z_ADD, I2C_MEMADD_SIZE_8BIT, tab, 2, 100);
}
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
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_I2C1_Init();
MX_UART4_Init();
/* USER CODE BEGIN 2 */
i2c_init_function();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
unsigned char buff[3];
eul_x_read(buff);
HAL_Delay(25);
eul_x_lsb = buff[0];
eul_x_msb = buff[1];
eul_y_read(buff);
HAL_Delay(25);
eul_y_lsb = buff[0];
eul_y_msb = buff[1];
eul_z_read(buff);
HAL_Delay(25);
eul_z_lsb = buff[0];
eul_z_msb = buff[1];
lia_x_read(buff);
HAL_Delay(25);
lia_x_lsb = buff[0];
lia_x_msb = buff[1];
lia_y_read(buff);
HAL_Delay(25);
lia_y_lsb = buff[0];
lia_y_msb = buff[1];
lia_z_read(buff);
HAL_Delay(25);
lia_z_lsb = buff[0];
lia_z_msb = buff[1];
unsigned char mapping[12] = {eul_x_msb, eul_x_lsb, eul_y_msb, eul_y_lsb, eul_z_msb, eul_z_lsb,
lia_x_msb, lia_x_lsb, lia_y_msb, lia_y_lsb, lia_z_msb, lia_z_lsb};
HAL_UART_Transmit(&huart4, mapping, 12, 100);
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_UART4|RCC_PERIPHCLK_I2C1;
PeriphClkInit.Uart4ClockSelection = RCC_UART4CLKSOURCE_PCLK1;
PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* I2C1 init function */
static void MX_I2C1_Init(void)
{
hi2c1.Instance = I2C1;
hi2c1.Init.Timing = 0x2000090E;
hi2c1.Init.OwnAddress1 = 0;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2 = 0;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* UART4 init function */
static void MX_UART4_Init(void)
{
huart4.Instance = UART4;
huart4.Init.BaudRate = 115200;
huart4.Init.WordLength = UART_WORDLENGTH_8B;
huart4.Init.StopBits = UART_STOPBITS_1;
huart4.Init.Parity = UART_PARITY_NONE;
huart4.Init.Mode = UART_MODE_TX_RX;
huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart4.Init.OverSampling = UART_OVERSAMPLING_16;
huart4.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart4.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart4) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
/*Configure GPIO pins : PA0 PA1 PA2 PA3
PA4 */
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
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,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
我想通了 XD 我不小心将 JTags 时钟引脚用于我的 I2C 通信，所以当它进入 GPIO 初始化时调试器将停止工作 XD 我最初使用引脚 PA14 和 PA15。 PA14 是 JTAG 时钟。所以我将它们更改为 PB8 和 PB9 是 I2C1 通信的替代引脚选择。here's the pin out description that enlightened me