I need help with my project. I'm using Atollic TrueSTUDIO, CubeMX and FreeRTOS. I have project in which I recived data from ADC and I'm trying to send it by USB. Everything works fine until I open port at PC (I'm trying HTerm, RealTerm, etc), after that dubugging stops and HardFault_Handler() appears.
Here is my main.c (everything is generate by CubeMX for FreeRTOS:
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f4xx_hal.h"
#include "cmsis_os.h"
#include "usb_device.h"
/* USER CODE BEGIN Includes */
#include "usbd_cdc_if.h"
#include "time.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
DMA_HandleTypeDef hdma_adc1;
UART_HandleTypeDef huart2;
DMA_HandleTypeDef hdma_memtomem_dma2_stream0;
osThreadId defaultTaskHandle;
osThreadId sendTaskHandle;
osThreadId recivedTaskHandle;
osThreadId prepareTaskHandle;
osSemaphoreId myBinarySem01Handle;
osSemaphoreId myBinarySem02Handle;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
#define length 2048
uint16_t preparedData[(length/8)];
uint8_t dataToSend[(length/16)];
uint16_t recivedData[(length/2)];
uint8_t sendCounter = 0;
clock_t start, end;
int cpu_time_used = 0;
SemaphoreHandle_t xSemaphore = NULL;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_ADC1_Init(void);
static void MX_USART2_UART_Init(void);
void StartDefaultTask(void const * argument);
void StartSendTask(void const * argument);
void StartADCTask(void const * argument);
void StartPrepareTask(void const * argument);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* 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_DMA_Init();
MX_ADC1_Init();
MX_USART2_UART_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* USER CODE BEGIN RTOS_MUTEX */
/* add mutexes, ... */
/* USER CODE END RTOS_MUTEX */
/* Create the semaphores(s) */
/* definition and creation of myBinarySem01 */
osSemaphoreDef(myBinarySem01);
myBinarySem01Handle = osSemaphoreCreate(osSemaphore(myBinarySem01), 1);
/* definition and creation of myBinarySem02 */
osSemaphoreDef(myBinarySem02);
myBinarySem02Handle = osSemaphoreCreate(osSemaphore(myBinarySem02), 1);
/* USER CODE BEGIN RTOS_SEMAPHORES */
/* add semaphores, ... */
/* USER CODE END RTOS_SEMAPHORES */
/* USER CODE BEGIN RTOS_TIMERS */
/* start timers, add new ones, ... */
/* USER CODE END RTOS_TIMERS */
/* Create the thread(s) */
/* definition and creation of defaultTask */
osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 128);
defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL);
/* definition and creation of sendTask */
osThreadDef(sendTask, StartSendTask, osPriorityNormal, 0, 512);
sendTaskHandle = osThreadCreate(osThread(sendTask), NULL);
/* definition and creation of recivedTask */
osThreadDef(recivedTask, StartADCTask, osPriorityNormal, 0, 1024);
recivedTaskHandle = osThreadCreate(osThread(recivedTask), NULL);
/* definition and creation of prepareTask */
osThreadDef(prepareTask, StartPrepareTask, osPriorityNormal, 0, 1024);
prepareTaskHandle = osThreadCreate(osThread(prepareTask), NULL);
/* USER CODE BEGIN RTOS_THREADS */
/* add threads, ... */
/* USER CODE END RTOS_THREADS */
/* USER CODE BEGIN RTOS_QUEUES */
/* add queues, ... */
/* USER CODE END RTOS_QUEUES */
/* Start scheduler */
osKernelStart();
/* We should never get here as control is now taken by the scheduler */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* 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;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
/**Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 4;
RCC_OscInitStruct.PLL.PLLN = 72;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 3;
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__);
}
/**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, 15, 0);
}
/* ADC1 init function */
static void MX_ADC1_Init(void)
{
ADC_ChannelConfTypeDef sConfig;
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = ENABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 4;
hadc1.Init.DMAContinuousRequests = ENABLE;
hadc1.Init.EOCSelection = ADC_EOC_SEQ_CONV;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_10;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_11;
sConfig.Rank = 2;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_12;
sConfig.Rank = 3;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time.
*/
sConfig.Channel = ADC_CHANNEL_13;
sConfig.Rank = 4;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* USART2 init function */
static void MX_USART2_UART_Init(void)
{
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/**
* Enable DMA controller clock
* Configure DMA for memory to memory transfers
* hdma_memtomem_dma2_stream0
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA2_CLK_ENABLE();
/* Configure DMA request hdma_memtomem_dma2_stream0 on DMA2_Stream0 */
hdma_memtomem_dma2_stream0.Instance = DMA2_Stream0;
hdma_memtomem_dma2_stream0.Init.Channel = DMA_CHANNEL_0;
hdma_memtomem_dma2_stream0.Init.Direction = DMA_MEMORY_TO_MEMORY;
hdma_memtomem_dma2_stream0.Init.PeriphInc = DMA_PINC_ENABLE;
hdma_memtomem_dma2_stream0.Init.MemInc = DMA_MINC_ENABLE;
hdma_memtomem_dma2_stream0.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_memtomem_dma2_stream0.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_memtomem_dma2_stream0.Init.Mode = DMA_NORMAL;
hdma_memtomem_dma2_stream0.Init.Priority = DMA_PRIORITY_LOW;
hdma_memtomem_dma2_stream0.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
hdma_memtomem_dma2_stream0.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
hdma_memtomem_dma2_stream0.Init.MemBurst = DMA_MBURST_SINGLE;
hdma_memtomem_dma2_stream0.Init.PeriphBurst = DMA_PBURST_SINGLE;
if (HAL_DMA_Init(&hdma_memtomem_dma2_stream0) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/* DMA interrupt init */
/* DMA2_Stream4_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA2_Stream4_IRQn, 5, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream4_IRQn);
}
/** 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_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : B1_Pin */
GPIO_InitStruct.Pin = B1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : LD2_Pin */
GPIO_InitStruct.Pin = LD2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* #brief Function implementing the defaultTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void const * argument)
{
/* init code for USB_DEVICE */
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 5 */
/* Infinite loop */
for(;;)
{
// vTaskResume( sendTaskHandle );
// vTaskResume( prepareTaskHandle );
// vTaskResume( recivedTaskHandle );
// vTaskSuspend( defaultTaskHandle );
}
/* USER CODE END 5 */
}
/* USER CODE BEGIN Header_StartSendTask */
/**
* #brief Function implementing the sendTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartSendTask */
void StartSendTask(void const * argument)
{
/* USER CODE BEGIN StartSendTask */
MX_USB_DEVICE_Init();
/* Infinite loop */
for(;;)
{
if( xSemaphoreTake( myBinarySem01Handle, ( TickType_t ) 100 ) )
{
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
volatile uint8_t send = CDC_Transmit_FS( dataToSend, (length/16) );
if( xSemaphoreGive( myBinarySem01Handle ) == pdTRUE )
{
taskYIELD();
}
} else {
taskYIELD();
}
}
/* USER CODE END StartSendTask */
}
/* USER CODE BEGIN Header_StartADCTask */
/**
* #brief Function implementing the recivedTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartADCTask */
void StartADCTask(void const * argument)
{
/* USER CODE BEGIN StartADCTask */
/* Infinite loop */
for(;;)
{
if( xSemaphoreTake( myBinarySem01Handle, ( TickType_t ) 100 ) )
{
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
for( int i = 0 ; i < (length/8) ; i++ ){
HAL_ADC_Start_DMA( &hadc1, recivedData, (length/2));
}
if( xSemaphoreGive( myBinarySem01Handle ) == pdTRUE )
{
taskYIELD();
}
} else {
taskYIELD();
}
}
/* USER CODE END StartADCTask */
}
/* USER CODE BEGIN Header_StartPrepareTask */
/**
* #brief Function implementing the prepareTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartPrepareTask */
void StartPrepareTask(void const * argument)
{
/* USER CODE BEGIN StartPrepareTask */
/* Infinite loop */
for(;;)
{
if( xSemaphoreTake( myBinarySem01Handle, ( TickType_t ) 100 ) )
{
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
volatile uint8_t counter = 0;
for( int i = 0; i < (length / ( 2 * 16 * 4)); i ++){
for( int j = 0; j < 16; j++){
preparedData[counter] += recivedData[i * 16 + j * 4];
preparedData[counter + 1] += recivedData[i * 16 + j * 4 + counter + 1];
preparedData[counter + 2] += recivedData[i * 16 + j * 4 + counter + 2];
preparedData[counter + 3] += recivedData[i * 16 + j * 4 + counter + 3];
}
counter += 4;
}
for( int i = 0; i < (length / 16); i += 2){
dataToSend[0 + i] = preparedData[i / 2] >> 8;
dataToSend[1 + i] = (preparedData[i / 2] << 8) >> 8;
}
if( xSemaphoreGive( myBinarySem01Handle ) == pdTRUE )
{
taskYIELD();
}
} else {
taskYIELD();
}
}
/* USER CODE END StartPrepareTask */
}
/**
* #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 */
Here is my usbd_cdc_if.c:
/* Includes ------------------------------------------------------------------*/
#include "usbd_cdc_if.h"
/* USER CODE BEGIN INCLUDE */
/* USER CODE END INCLUDE */
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/** #addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* #brief Usb device library.
* #{
*/
/** #addtogroup USBD_CDC_IF
* #{
*/
/** #defgroup USBD_CDC_IF_Private_TypesDefinitions USBD_CDC_IF_Private_TypesDefinitions
* #brief Private types.
* #{
*/
/* USER CODE BEGIN PRIVATE_TYPES */
/* USER CODE END PRIVATE_TYPES */
/**
* #}
*/
/** #defgroup USBD_CDC_IF_Private_Defines USBD_CDC_IF_Private_Defines
* #brief Private defines.
* #{
*/
/* USER CODE BEGIN PRIVATE_DEFINES */
/* Define size for the receive and transmit buffer over CDC */
/* It's up to user to redefine and/or remove those define */
#define APP_RX_DATA_SIZE 128
#define APP_TX_DATA_SIZE 128
/* USER CODE END PRIVATE_DEFINES */
/**
* #}
*/
/** #defgroup USBD_CDC_IF_Private_Macros USBD_CDC_IF_Private_Macros
* #brief Private macros.
* #{
*/
/* USER CODE BEGIN PRIVATE_MACRO */
/* USER CODE END PRIVATE_MACRO */
/**
* #}
*/
/** #defgroup USBD_CDC_IF_Private_Variables USBD_CDC_IF_Private_Variables
* #brief Private variables.
* #{
*/
/* Create buffer for reception and transmission */
/* It's up to user to redefine and/or remove those define */
/** Received data over USB are stored in this buffer */
uint8_t UserRxBufferFS[APP_RX_DATA_SIZE];
/** Data to send over USB CDC are stored in this buffer */
uint8_t UserTxBufferFS[APP_TX_DATA_SIZE];
/* USER CODE BEGIN PRIVATE_VARIABLES */
/* USER CODE END PRIVATE_VARIABLES */
/**
* #}
*/
/** #defgroup USBD_CDC_IF_Exported_Variables USBD_CDC_IF_Exported_Variables
* #brief Public variables.
* #{
*/
extern USBD_HandleTypeDef hUsbDeviceFS;
/* USER CODE BEGIN EXPORTED_VARIABLES */
/* USER CODE END EXPORTED_VARIABLES */
/**
* #}
*/
/** #defgroup USBD_CDC_IF_Private_FunctionPrototypes USBD_CDC_IF_Private_FunctionPrototypes
* #brief Private functions declaration.
* #{
*/
static int8_t CDC_Init_FS(void);
static int8_t CDC_DeInit_FS(void);
static int8_t CDC_Control_FS(uint8_t cmd, uint8_t* pbuf, uint16_t length);
static int8_t CDC_Receive_FS(uint8_t* pbuf, uint32_t *Len);
/* USER CODE BEGIN PRIVATE_FUNCTIONS_DECLARATION */
/* USER CODE END PRIVATE_FUNCTIONS_DECLARATION */
/**
* #}
*/
USBD_CDC_ItfTypeDef USBD_Interface_fops_FS =
{
CDC_Init_FS,
CDC_DeInit_FS,
CDC_Control_FS,
CDC_Receive_FS
};
/* Private functions ---------------------------------------------------------*/
/**
* #brief Initializes the CDC media low layer over the FS USB IP
* #retval USBD_OK if all operations are OK else USBD_FAIL
*/
static int8_t CDC_Init_FS(void)
{
/* USER CODE BEGIN 3 */
/* Set Application Buffers */
USBD_CDC_SetTxBuffer(&hUsbDeviceFS, UserTxBufferFS, 0);
USBD_CDC_SetRxBuffer(&hUsbDeviceFS, UserRxBufferFS);
return (USBD_OK);
/* USER CODE END 3 */
}
/**
* #brief DeInitializes the CDC media low layer
* #retval USBD_OK if all operations are OK else USBD_FAIL
*/
static int8_t CDC_DeInit_FS(void)
{
/* USER CODE BEGIN 4 */
return (USBD_OK);
/* USER CODE END 4 */
}
/**
* #brief Manage the CDC class requests
* #param cmd: Command code
* #param pbuf: Buffer containing command data (request parameters)
* #param length: Number of data to be sent (in bytes)
* #retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
*/
static int8_t CDC_Control_FS(uint8_t cmd, uint8_t* pbuf, uint16_t length)
{
/* USER CODE BEGIN 5 */
switch(cmd)
{
case CDC_SEND_ENCAPSULATED_COMMAND:
break;
case CDC_GET_ENCAPSULATED_RESPONSE:
break;
case CDC_SET_COMM_FEATURE:
break;
case CDC_GET_COMM_FEATURE:
break;
case CDC_CLEAR_COMM_FEATURE:
break;
/*******************************************************************************/
/* Line Coding Structure */
/*-----------------------------------------------------------------------------*/
/* Offset | Field | Size | Value | Description */
/* 0 | dwDTERate | 4 | Number |Data terminal rate, in bits per second*/
/* 4 | bCharFormat | 1 | Number | Stop bits */
/* 0 - 1 Stop bit */
/* 1 - 1.5 Stop bits */
/* 2 - 2 Stop bits */
/* 5 | bParityType | 1 | Number | Parity */
/* 0 - None */
/* 1 - Odd */
/* 2 - Even */
/* 3 - Mark */
/* 4 - Space */
/* 6 | bDataBits | 1 | Number Data bits (5, 6, 7, 8 or 16). */
/*******************************************************************************/
case CDC_SET_LINE_CODING:
break;
case CDC_GET_LINE_CODING:
break;
case CDC_SET_CONTROL_LINE_STATE:
break;
case CDC_SEND_BREAK:
break;
default:
break;
}
return (USBD_OK);
/* USER CODE END 5 */
}
/**
* #brief Data received over USB OUT endpoint are sent over CDC interface
* through this function.
*
* #note
* This function will block any OUT packet reception on USB endpoint
* untill exiting this function. If you exit this function before transfer
* is complete on CDC interface (ie. using DMA controller) it will result
* in receiving more data while previous ones are still not sent.
*
* #param Buf: Buffer of data to be received
* #param Len: Number of data received (in bytes)
* #retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
*/
static int8_t CDC_Receive_FS(uint8_t* Buf, uint32_t *Len)
{
/* USER CODE BEGIN 6 */
USBD_CDC_SetRxBuffer(&hUsbDeviceFS, &Buf[0]);
USBD_CDC_ReceivePacket(&hUsbDeviceFS);
return (USBD_OK);
/* USER CODE END 6 */
}
/**
* #brief CDC_Transmit_FS
* Data to send over USB IN endpoint are sent over CDC interface
* through this function.
* #note
*
*
* #param Buf: Buffer of data to be sent
* #param Len: Number of data to be sent (in bytes)
* #retval USBD_OK if all operations are OK else USBD_FAIL or USBD_BUSY
*/
uint8_t CDC_Transmit_FS(uint8_t* Buf, uint16_t Len)
{
uint8_t result = USBD_OK;
/* USER CODE BEGIN 7 */
USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef*)hUsbDeviceFS.pClassData;
if (hcdc->TxState != 0){
return USBD_BUSY;
}
USBD_CDC_SetTxBuffer(&hUsbDeviceFS, Buf, Len);
result = USBD_CDC_TransmitPacket(&hUsbDeviceFS);
/* USER CODE END 7 */
return result;
}
Could someone help me?
I solved it myself, so sorry for spam thread. But if it will be helpfull for someone I used Queue.
Here is how my code looks like after add 2 Queues in CubeMX (recivedData 1024 uint16_t and dataToSend 128 uint8_t):
void StartSendTask(void const * argument)
{
/* USER CODE BEGIN StartSendTask */
MX_USB_DEVICE_Init();
/* Infinite loop */
for(;;)
{
if( xQueueReceive(dataToSendHandle, sender, 10) ){
if( xSemaphoreTake( myBinarySem02Handle, ( TickType_t ) 10 ) )
{
counter4++;
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
volatile uint8_t send = CDC_Transmit_FS( sender, (length/8) );
xSemaphoreGive( myBinarySem02Handle );
}
}
}
/* USER CODE END StartSendTask */
}
/* USER CODE BEGIN Header_StartADCTask */
/**
* #brief Function implementing the recivedTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartADCTask */
void StartADCTask(void const * argument)
{
/* USER CODE BEGIN StartADCTask */
/* Infinite loop */
for(;;)
{
if( xSemaphoreTake( myBinarySem01Handle, ( TickType_t ) 10 ) )
{
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
counter1++;
for( int i = 0 ; i < (length/4) ; i++ ){
HAL_ADC_Start_DMA( &hadc1, reciver, length);
}
if( xSemaphoreGive( myBinarySem01Handle ) == pdTRUE )
{
xQueueSend(recivedDataHandle, reciver, 10);
vTaskDelay(1);
}
}
}
/* USER CODE END StartADCTask */
}
/* USER CODE BEGIN Header_StartPrepareTask */
/**
* #brief Function implementing the prepareTask thread.
* #param argument: Not used
* #retval None
*/
/* USER CODE END Header_StartPrepareTask */
void StartPrepareTask(void const * argument)
{
/* USER CODE BEGIN StartPrepareTask */
/* Infinite loop */
for(;;)
{
if( xQueueReceive(recivedDataHandle, reciver, 10) ){
HAL_GPIO_WritePin( LD2_GPIO_Port, LD2_Pin, !HAL_GPIO_ReadPin( LD2_GPIO_Port, LD2_Pin) );
counter2++;
if( xSemaphoreTake( myBinarySem01Handle, ( TickType_t ) 10 ) )
{
if( xSemaphoreTake( myBinarySem02Handle, ( TickType_t ) 10 ) )
{
volatile uint8_t counter = 0;
for( int i = 0; i < (length / (16 * 4)); i ++){
for( int j = 0; j < 16; j++){
prepared[counter] += reciver[i * 16 + j * 4 + counter];
prepared[counter + 1] += reciver[i * 16 + j * 4 + counter + 1];
prepared[counter + 2] += reciver[i * 16 + j * 4 + counter + 2];
prepared[counter + 3] += reciver[i * 16 + j * 4 + counter + 3];
}
counter += 4;
}
if( xSemaphoreGive( myBinarySem02Handle ) == pdTRUE )
{
xSemaphoreGive( myBinarySem01Handle );
}
} else {
xSemaphoreGive( myBinarySem01Handle );
}
}
if( xSemaphoreTake( myBinarySem02Handle, ( TickType_t ) 10 ) )
{
counter3++;
for( int i = 0; i < (length / 8); i += 2){
sender[0 + i] = prepared[i / 2] >> 8;
sender[1 + i] = (prepared[i / 2] << 8) >> 8;
}
if( xSemaphoreGive( myBinarySem02Handle ) == pdTRUE )
{
xQueueSend(dataToSendHandle, sender, 10);
}
}
}
}
/* USER CODE END StartPrepareTask */
}
Related
I want to use both CAN1 and CAN2 for my application with 500kbps and 125kbps speeds respectively. I have initialized both of them as per my requirements using HAL. Where in Tx is implemented in polling and Rx in interrupts. CAN1 Tx and Rx working perfect. Coming to CAN2 Tx is working and Rx is not working. Interrupt itself is not firing up for CAN2 Rx (HAL_CAN_RxFifo0MsgPendingCallback is not being called). I've read in datasheet that SRAM sharing process is happening between 2 CANs. I'm unable to comprehend that. Is that an issue?
I'm attaching the code also. Please check and help!
Little overview - all MCU clocks running at - 16 MHz using internal HSI, No filter in CAN configs
################ MAIN FILE ####################
/* Private variables ---------------------------------------------------------*/
CAN_HandleTypeDef hcan1;
CAN_HandleTypeDef hcan2;
/* USER CODE BEGIN PV */
CAN_TxHeaderTypeDef txheader;
uint8_t txdata[8];
CAN_RxHeaderTypeDef RxHeader;
uint8_t RxData[8];
CAN_TxHeaderTypeDef txheader1;
uint8_t txdata1[8];
CAN_RxHeaderTypeDef RxHeader1;
uint8_t RxData1[8];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_CAN1_Init(void);
static void MX_CAN2_Init(void);
int main(void)
{
/* USER CODE BEGIN 1 */
uint8_t fill = 0;
/* 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_CAN1_Init();
MX_CAN2_Init();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
txheader.DLC = 8;
txheader.ExtId = 0x11111111;
txheader.IDE = CAN_ID_EXT;
txheader.RTR = CAN_RTR_DATA;
for(uint8_t i = 0; i<8;i++)
{
txdata[i] = i;
}
// txdata[0] = fill;
HAL_Delay(250);
HAL_CAN_AddTxMessage(&hcan1,&txheader,txdata, (uint32_t *)CAN_TX_MAILBOX0);
HAL_Delay(250);
HAL_CAN_AddTxMessage(&hcan2,&txheader,txdata, (uint32_t *)CAN_TX_MAILBOX0);
}
/* USER CODE END 3 */
}
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_SCALE3);
/** 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 CAN1 Initialization Function
* #param None
* #retval None
*/
static void MX_CAN1_Init(void)
{
/* USER CODE BEGIN CAN1_Init 0 */
CAN_FilterTypeDef sFilterConfig;
/* USER CODE END CAN1_Init 0 */
/* USER CODE BEGIN CAN1_Init 1 */
/* USER CODE END CAN1_Init 1 */
hcan1.Instance = CAN1;
hcan1.Init.Prescaler = 2;
hcan1.Init.Mode = CAN_MODE_NORMAL;
hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan1.Init.TimeSeg1 = CAN_BS1_13TQ;
hcan1.Init.TimeSeg2 = CAN_BS2_2TQ;
hcan1.Init.TimeTriggeredMode = DISABLE;
hcan1.Init.AutoBusOff = DISABLE;
hcan1.Init.AutoWakeUp = DISABLE;
hcan1.Init.AutoRetransmission = DISABLE;
hcan1.Init.ReceiveFifoLocked = DISABLE;
hcan1.Init.TransmitFifoPriority = DISABLE;
if (HAL_CAN_Init(&hcan1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CAN1_Init 2 */
sFilterConfig.FilterBank = 0;
sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;
sFilterConfig.FilterScale = CAN_FILTERSCALE_32BIT;
sFilterConfig.FilterIdHigh = 0x0000;
sFilterConfig.FilterIdLow = 0x0000;
sFilterConfig.FilterMaskIdHigh = 0x0000;
sFilterConfig.FilterMaskIdLow = 0x0000;
sFilterConfig.FilterFIFOAssignment = CAN_RX_FIFO0;
sFilterConfig.FilterActivation = ENABLE;
sFilterConfig.SlaveStartFilterBank = 14;
if (HAL_CAN_ConfigFilter(&hcan1, &sFilterConfig) != HAL_OK)
{
/* Filter configuration Error */
Error_Handler();
}
HAL_CAN_Start(&hcan1);
/*##-4- Activate CAN RX notification #######################################*/
if (HAL_CAN_ActivateNotification(&hcan1, CAN_IT_RX_FIFO0_MSG_PENDING) != HAL_OK)
{
/* Notification Error */
Error_Handler();
}
/* USER CODE END CAN1_Init 2 */
}
/**
* #brief CAN1 Initialization Function
* #param None
* #retval None
*/
static void MX_CAN2_Init(void)
{
/* USER CODE BEGIN CAN1_Init 0 */
CAN_FilterTypeDef sFilterConfig;
/* USER CODE END CAN1_Init 0 */
/* USER CODE BEGIN CAN1_Init 1 */
/* USER CODE END CAN1_Init 1 */
hcan2.Instance = CAN2;
hcan2.Init.Prescaler = 8;
hcan2.Init.Mode = CAN_MODE_NORMAL;
hcan2.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan2.Init.TimeSeg1 = CAN_BS1_13TQ;
hcan2.Init.TimeSeg2 = CAN_BS2_2TQ;
hcan2.Init.TimeTriggeredMode = DISABLE;
hcan2.Init.AutoBusOff = DISABLE;
hcan2.Init.AutoWakeUp = DISABLE;
hcan2.Init.AutoRetransmission = DISABLE;
hcan2.Init.ReceiveFifoLocked = DISABLE;
hcan2.Init.TransmitFifoPriority = DISABLE;
if (HAL_CAN_Init(&hcan2) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN CAN1_Init 2 */
sFilterConfig.FilterBank = 0;
sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;
sFilterConfig.FilterScale = CAN_FILTERSCALE_32BIT;
sFilterConfig.FilterIdHigh = 0x0000;
sFilterConfig.FilterIdLow = 0x0000;
sFilterConfig.FilterMaskIdHigh = 0x0000;
sFilterConfig.FilterMaskIdLow = 0x0000;
sFilterConfig.FilterFIFOAssignment = CAN_RX_FIFO0;
sFilterConfig.FilterActivation = ENABLE;
sFilterConfig.SlaveStartFilterBank = 14;
if (HAL_CAN_ConfigFilter(&hcan2, &sFilterConfig) != HAL_OK)
{
/* Filter configuration Error */
Error_Handler();
}
HAL_CAN_Start(&hcan2);
/*##-4- Activate CAN RX notification #######################################*/
if (HAL_CAN_ActivateNotification(&hcan2, CAN_IT_RX_FIFO0_MSG_PENDING) != HAL_OK)
{
/* Notification Error */
Error_Handler();
}
/* USER CODE END CAN1_Init 2 */
}
/**
* #brief GPIO Initialization Function
* #param None
* #retval None
*/
static void MX_GPIO_Init(void)
{
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
}
/* USER CODE BEGIN 4 */
/**
* #brief Rx Fifo 0 message pending callback
* #param hcan: pointer to a CAN_HandleTypeDef structure that contains
* the configuration information for the specified CAN.
* #retval None
*/
uint8_t cflag;
void HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *hcan)
{
/* Get RX message */
if (HAL_CAN_GetRxMessage(hcan, CAN_RX_FIFO0, &RxHeader, RxData) != HAL_OK)
{
/* Reception Error */
Error_Handler();
}
/* Display LEDx */
if ((RxHeader.StdId == 0x321) && (RxHeader.IDE == CAN_ID_STD) && (RxHeader.DLC == 2))
{
}
/* Display LEDx */
if ((RxHeader.ExtId == 0x11111111) && (RxHeader.IDE == CAN_ID_EXT) && (RxHeader.DLC == 8))
{
cflag = 1;
}
else
cflag = 0;
}
/* USER CODE END 4 */
##################### MSP FILE ######################
/**
* Initializes the Global MSP.
*/
void HAL_MspInit(void)
{
/* USER CODE BEGIN MspInit 0 */
/* USER CODE END MspInit 0 */
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_RCC_PWR_CLK_ENABLE();
/* System interrupt init*/
/* USER CODE BEGIN MspInit 1 */
/* USER CODE END MspInit 1 */
}
static uint32_t HAL_RCC_CAN1_CLK_ENABLED=0;
/**
* #brief CAN MSP Initialization
* This function configures the hardware resources used in this example
* #param hcan: CAN handle pointer
* #retval None
*/
void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(hcan->Instance==CAN1)
{
/* USER CODE BEGIN CAN1_MspInit 0 */
/* USER CODE END CAN1_MspInit 0 */
/* Peripheral clock enable */
HAL_RCC_CAN1_CLK_ENABLED++;
if(HAL_RCC_CAN1_CLK_ENABLED==1){
__HAL_RCC_CAN1_CLK_ENABLE();
}
__HAL_RCC_GPIOA_CLK_ENABLE();
/**CAN1 GPIO Configuration
PA11 ------> CAN1_RX
PA12 ------> CAN1_TX
*/
GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_CAN1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USER CODE BEGIN CAN1_MspInit 1 */
HAL_NVIC_SetPriority(CAN1_RX0_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(CAN1_RX0_IRQn);
/* USER CODE END CAN1_MspInit 1 */
}
else if(hcan->Instance==CAN2)
{
/* USER CODE BEGIN CAN2_MspInit 0 */
/* USER CODE END CAN2_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_CAN2_CLK_ENABLE();
HAL_RCC_CAN1_CLK_ENABLED++;
if(HAL_RCC_CAN1_CLK_ENABLED==1){
__HAL_RCC_CAN1_CLK_ENABLE();
}
__HAL_RCC_GPIOB_CLK_ENABLE();
/**CAN2 GPIO Configuration
PB12 ------> CAN2_RX
PB13 ------> CAN2_TX
*/
GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF9_CAN2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* CAN2 interrupt Init */
HAL_NVIC_SetPriority(CAN2_RX0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(CAN2_RX0_IRQn);
/* USER CODE BEGIN CAN2_MspInit 1 */
/* USER CODE END CAN2_MspInit 1 */
}
}
/**
* #brief CAN MSP De-Initialization
* This function freeze the hardware resources used in this example
* #param hcan: CAN handle pointer
* #retval None
*/
void HAL_CAN_MspDeInit(CAN_HandleTypeDef* hcan)
{
if(hcan->Instance==CAN1)
{
/* USER CODE BEGIN CAN1_MspDeInit 0 */
/* USER CODE END CAN1_MspDeInit 0 */
/* Peripheral clock disable */
HAL_RCC_CAN1_CLK_ENABLED--;
if(HAL_RCC_CAN1_CLK_ENABLED==0){
__HAL_RCC_CAN1_CLK_DISABLE();
}
/**CAN1 GPIO Configuration
PA11 ------> CAN1_RX
PA12 ------> CAN1_TX
*/
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11|GPIO_PIN_12);
/* USER CODE BEGIN CAN1_MspDeInit 1 */
/* USER CODE END CAN1_MspDeInit 1 */
}
else if(hcan->Instance==CAN2)
{
/* USER CODE BEGIN CAN2_MspDeInit 0 */
/* USER CODE END CAN2_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_CAN2_CLK_DISABLE();
HAL_RCC_CAN1_CLK_ENABLED--;
if(HAL_RCC_CAN1_CLK_ENABLED==0){
__HAL_RCC_CAN1_CLK_DISABLE();
}
/**CAN2 GPIO Configuration
PB12 ------> CAN2_RX
PB13 ------> CAN2_TX
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_12|GPIO_PIN_13);
/* CAN2 interrupt DeInit */
HAL_NVIC_DisableIRQ(CAN2_RX0_IRQn);
/* USER CODE BEGIN CAN2_MspDeInit 1 */
/* USER CODE END CAN2_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
######################### IT FILE #############################
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f4xx_it.h"
/* External variables --------------------------------------------------------*/
extern CAN_HandleTypeDef hcan2;
/**
* #brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
/* USER CODE END SysTick_IRQn 0 */
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_IRQn 1 */
}
/******************************************************************************/
/* STM32F4xx Peripheral Interrupt Handlers */
/* Add here the Interrupt Handlers for the used peripherals. */
/* For the available peripheral interrupt handler names, */
/* please refer to the startup file (startup_stm32f4xx.s). */
/******************************************************************************/
/**
* #brief This function handles CAN2 RX0 interrupt.
*/
void CAN2_RX0_IRQHandler(void)
{
/* USER CODE BEGIN CAN2_RX0_IRQn 0 */
/* USER CODE END CAN2_RX0_IRQn 0 */
HAL_CAN_IRQHandler(&hcan2);
/* USER CODE BEGIN CAN2_RX0_IRQn 1 */
/* USER CODE END CAN2_RX0_IRQn 1 */
}
/* USER CODE BEGIN 1 */
/**
* #brief This function handles CAN1 RX0 interrupt request.
* #param None
* #retval None
*/
extern CAN_HandleTypeDef hcan1;
void CAN1_RX0_IRQHandler(void)
{
HAL_CAN_IRQHandler(&hcan1);
}
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
I solved my problem. Got help from ST community. Please refer to the link below.
https://community.st.com/s/feed/0D53W00000RQCwgSAH?t=1608012202888
Problem was filter configuration for CAN1 and CAN2. There are 28 filter banks (0-27) split between CAN1 and CAN2. First half (0-13) for CAN1 and the rest for CAN2. So just make some changes in the code posted above -
CAN 1:
sFilterConfig.FilterBank = 0;
:
sFilterConfig.SlaveStartFilterBank = 14;
CAN2:
sFilterConfig.FilterBank = 14; // previously 0
:
sFilterConfig.SlaveStartFilterBank = 14; // previously 27
Thanks to Lundin for suggesting sync point. Use this website for CAN Bit time calculations for various chips -
http://www.bittiming.can-wiki.info/
I am trying to read informations from a external sensor by USART, using a Nucleo stm32wb board. The sensor is using a 9600 baud rate and I know that it is fonctionnal. My pin connections are also good.
Furthermore, I can see on my logic analyzer that data are always sent.
The problem is that I always got a receive timeout no matter what timeout using.
Here is my code :
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_USART1_UART_Init();
HW_RTC_Init();
/* USER CODE BEGIN 2 */
int incomingBytes[100];
uint8_t d = 'a';
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_UART_Receive(&huart1, &d, 1, 1000);
if(d == 0x42){
incomingBytes[0] = d;
for(int i = 1;i<31;i++){
HAL_UART_Receive(&huart1, &d, 1, 1000);
incomingBytes[i] = d;
}
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* #brief USART1 Initialization Function
* #param None
* #retval None
*/
static void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 9600;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
/* USER CODE END USART1_Init 2 */
}
Any idea of what I could forgot?
I am trying to set up performance monitorint interrupt on counter overflow to collect some information. For this I created driver. I skip some part of code that are irrelevant.
driver.c
extern VOID EnableReadPmc();
extern VOID PmiHandle();
extern VOID GetIdt(IDT_INFO *idt);
extern ULONG64 GetCs();
#pragma pack(2)
typedef struct {
USHORT Limit;
ULONG64 Base;
}IDT_INFO;
#pragma pack()
typedef struct _entry {
ULONG64 Low;
ULONG64 High;
} entry;
PHYSICAL_ADDRESS lvt_perf_count_reg = {0xfee00340, 0x00000000};
PVOID map_lvt_perf_count_reg = NULL;
PHYSICAL_ADDRESS eoi_register = {0xfee000b0, 0x00000000};
PVOID map_eoi_register = NULL;
NTSTATUS IoCtlDispatch(IN PDEVICE_OBJECT pDeviceObject, IN PIRP pIrp) {
ULONG32 set_lvt_perf_count_reg = 0x000000ee;
//idt
IDT_INFO idtr;
entry *idt = NULL;
entry tmp_gate;
ULONG64 func;
ULONG64 seg;
ULONG64 int_setting;
//ovf status value
ULONG64 ovf_status;
pIrpStack = IoGetCurrentIrpStackLocation(pIrp);
switch (pIrpStack->Parameters.DeviceIoControl.IoControlCode) {
case IOCTL_INTERRUPT_SETTING_UP:
//disable pmc and clear ovf
WriteMsr(IA32_PERF_GLOBAL_CTRL, 0x00);
WriteMsr(IA32_FIXED_CTR_CTRL, 0x00);
ovf_status = ReadMsr(IA32_PERF_GLOBAL_STATUS);
WriteMsr(IA32_PERF_GLOBAL_OVF_CTRL, ovf_status);
//setting up lvt entry
map_lvt_perf_count_reg = MmMapIoSpace(lvt_perf_count_reg, 4, MmNonCached);
*(PULONG32)map_lvt_perf_count_reg = set_lvt_perf_count_reg;
map_eoi_register = MmMapIoSpace(eoi_register, 4, MmNonCached);
//setting up idt handler
idtr.Limit = 0;
idtr.Base = 0;
GetIdt(&idtr);
idt = idtr.Base;
tmp_gate.Low = 0;
tmp_gate.High = 0;
func = 0;
seg = 0;
int_setting = 0x8e00;
//p = 1 dpl = 0 type(interrupt gate) = 1110 ist = 0
seg = GetCs();
func = (ULONG64)PmiHandle;
tmp_gate.Low = func & 0x0ffff;
tmp_gate.Low = seg << 16 | tmp_gate.Low;
tmp_gate.Low = int_setting << 32 | tmp_gate.Low;
tmp_gate.Low = ((func & 0x0ffff0000) << 32) | tmp_gate.Low;
tmp_gate.High = (func & 0xffffffff00000000) >> 32;
idt[238] = tmp_gate;
MmUnmapIoSpace(map_lvt_perf_count_reg, 4);
map_lvt_perf_count_reg = NULL;
pIrp->IoStatus.Information = 0;
break;
default:
DbgPrint("Error in switch");
break;
}
status = pIrp->IoStatus.Status;
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
return status;
}
pmihandle.asm
public PmiHandle
extern Handle : proc
.code
PmiHandle:
call Handle
add rsp, 8
iretq
end
handle.c
#define IA32_PERF_GLOBAL_CTRL 0x38f
#define IA32_PERF_GLOBAL_STATUS 0x38e
#define IA32_PERF_GLOBAL_OVF_CTRL 0x390
extern ULONG64 ovf_status_handle;
extern PVOID map_eoi_register;
VOID Handle() {
WriteMsr(IA32_PERF_GLOBAL_CTRL, 0x00);
ovf_status_handle = ReadMsr(IA32_PERF_GLOBAL_STATUS);
WriteMsr(IA32_PERF_GLOBAL_OVF_CTRL, ovf_status_handle);
DbgPrint("INTERRUPT_INTERRUPT_INTERRUPT");
if (map_eoi_register != NULL)
*(PULONG32)map_eoi_register = 0x0;
else
DbgPrint("EOI failed");
}
main.c application with which I turn on counters
#include <stdio.h>
#include "include/msr_sampling.h"
#define FILE_DEVICE_MSR 0x8000
#define IOCTL_INTERRUPT_SETTING_UP CTL_CODE(FILE_DEVICE_MSR, 0x805, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_FILE_TEST CTL_CODE(FILE_DEVICE_MSR, 0x806, METHOD_BUFFERED, FILE_ANY_ACCESS)
int main() {
SetProcForMsrCtr(); //set affinity mask for first proc
DriverOpen();
EnableReadPmc(); //enable __readpmc instruction
DWORD numberData = -1;
DeviceIoControl(hFile, IOCTL_INTERRUPT_SETTING_UP, NULL, 0, NULL, 0, &numberData, NULL);
ULONG64 value;
value = 0x000000000000000b;
WriteMsr(IA32_FIXED_CTR_CTRL, value);
value = 0xfffffffff000; //old value ffffffffc000
printf("%llu\n", __readpmc((1 << 30)));
WriteMsr(0x309, value);
printf("%llx\n", __readpmc((1 << 30)));
printf("=================================================\n");
ReadMsr(IA32_PERF_GLOBAL_CTRL, &value);
printf("%llX\n", value);
value = 0x0000000100000000;
WriteMsr(IA32_PERF_GLOBAL_CTRL, value);
printf("counter value: %llX\n", __readpmc((1 << 30)));
DriverClose();
system("pause");
return 0;
}
When I launch application my computer froze(does not respond to mouse movement and press key).
But if I generate interrupt with using assembly instuction INT it is OK.
I checked IDT and LVT entry via WinDbg they are correct.
What could be the problem?
Some informantion:
My processor is Intel Core i5-3210M. OS windows 7 x64. I do this on laptop.
I found a way to enumerate other programs handles, but I have problem now. I can not see Process type threads. I need to check which programs open handles for my process.
When I check the output, it is "unnamed", I don't know how to fix it.
Should I do this via dirver? or any other way to do this without driver?
pid = _wtoi(argv[1]);
if (!(processHandle = OpenProcess(PROCESS_DUP_HANDLE, FALSE, pid)))
{
printf("Could not open PID %d! (Don't try to open a system process.)\n", pid);
return 1;
}
handleInfo = (PSYSTEM_HANDLE_INFORMATION)malloc(handleInfoSize);
/* NtQuerySystemInformation won't give us the correct buffer size,
so we guess by doubling the buffer size. */
while ((status = NtQuerySystemInformation(
SystemHandleInformation,
handleInfo,
handleInfoSize,
NULL
)) == STATUS_INFO_LENGTH_MISMATCH)
handleInfo = (PSYSTEM_HANDLE_INFORMATION)realloc(handleInfo, handleInfoSize *= 2);
/* NtQuerySystemInformation stopped giving us STATUS_INFO_LENGTH_MISMATCH. */
if (!NT_SUCCESS(status))
{
printf("NtQuerySystemInformation failed!\n");
return 1;
}
for (i = 0; i < handleInfo->HandleCount; i++)
{
SYSTEM_HANDLE handle = handleInfo->Handles[i];
HANDLE dupHandle = NULL;
POBJECT_TYPE_INFORMATION objectTypeInfo;
PVOID objectNameInfo;
UNICODE_STRING objectName;
ULONG returnLength;
/* Check if this handle belongs to the PID the user specified. */
if (handle.ProcessId != pid)
continue;
/* Duplicate the handle so we can query it. */
if (!NT_SUCCESS(NtDuplicateObject(
processHandle,
handle.Handle,
GetCurrentProcess(),
&dupHandle,
0,
0,
0
)))
{
printf("[%#x] Error!\n", handle.Handle);
continue;
}
/* Query the object type. */
objectTypeInfo = (POBJECT_TYPE_INFORMATION)malloc(0x1000);
if (!NT_SUCCESS(NtQueryObject(
dupHandle,
ObjectTypeInformation,
objectTypeInfo,
0x1000,
NULL
)))
{
printf("[%#x] Error!\n", handle.Handle);
CloseHandle(dupHandle);
continue;
}
/* Query the object name (unless it has an access of
0x0012019f, on which NtQueryObject could hang. */
if (handle.GrantedAccess == 0x0012019f)
{
/* We have the type, so display that. */
printf(
"[%#x] %.*S: (did not get name)\n",
handle.Handle,
objectTypeInfo->Name.Length / 2,
objectTypeInfo->Name.Buffer
);
free(objectTypeInfo);
CloseHandle(dupHandle);
continue;
}
objectNameInfo = malloc(0x1000);
if (!NT_SUCCESS(NtQueryObject(
dupHandle,
ObjectNameInformation,
objectNameInfo,
0x1000,
&returnLength
)))
{
/* Reallocate the buffer and try again. */
objectNameInfo = realloc(objectNameInfo, returnLength);
if (!NT_SUCCESS(NtQueryObject(
dupHandle,
ObjectNameInformation,
objectNameInfo,
returnLength,
NULL
)))
{
/* We have the type name, so just display that. */
printf(
"[%#x] %.*S: (could not get name)\n",
handle.Handle,
objectTypeInfo->Name.Length / 2,
objectTypeInfo->Name.Buffer
);
free(objectTypeInfo);
free(objectNameInfo);
CloseHandle(dupHandle);
continue;
}
}
/* Cast our buffer into an UNICODE_STRING. */
objectName = *(PUNICODE_STRING)objectNameInfo;
/* Print the information! */
if (objectName.Length)
{
/* The object has a name. */
printf(
"[%#x] %.*S: %.*S\n",
handle.Handle,
objectTypeInfo->Name.Length / 2,
objectTypeInfo->Name.Buffer,
objectName.Length / 2,
objectName.Buffer
);
}
else
{
/* Print something else. */
printf(
"[%#x] %.*S: (unnamed)\n",
handle.Handle,
objectTypeInfo->Name.Length / 2,
objectTypeInfo->Name.Buffer
);
}
free(objectTypeInfo);
free(objectNameInfo);
CloseHandle(dupHandle);
}
free(handleInfo);
CloseHandle(processHandle);
return 0;
void SearchMyProcessHandles()
{
ULONG UniqueProcessId = GetCurrentProcessId();
if (HANDLE hProcess = OpenProcess(MAXIMUM_ALLOWED, FALSE, UniqueProcessId))
{
NTSTATUS status;
union {
PSYSTEM_HANDLE_INFORMATION_EX pshi;
PVOID buf;
};
ULONG cb = 0x10000;
do
{
status = STATUS_INSUFFICIENT_RESOURCES;
if (buf = new UCHAR[cb += PAGE_SIZE])
{
if (0 <= (status = ZwQuerySystemInformation(SystemExtendedHandleInformation, buf, cb, &cb)))
{
if (ULONG_PTR NumberOfHandles = pshi->NumberOfHandles)
{
SYSTEM_HANDLE_TABLE_ENTRY_INFO_EX* Handles = pshi->Handles;
do
{
if (Handles->UniqueProcessId == UniqueProcessId &&
Handles->HandleValue == (ULONG_PTR)hProcess)
{
PVOID Object = Handles->Object;
Handles = pshi->Handles;
NumberOfHandles = pshi->NumberOfHandles;
do
{
if (Handles->Object == Object &&
Handles->UniqueProcessId != UniqueProcessId)
{
DbgPrint("%p %p %08x\n",
Handles->UniqueProcessId,
Handles->HandleValue,
Handles->GrantedAccess);
}
} while (Handles++, --NumberOfHandles);
break;
}
} while (Handles++, --NumberOfHandles);
}
}
delete [] buf;
}
} while (status == STATUS_INFO_LENGTH_MISMATCH);
CloseHandle(hProcess);
}
}
I'm learning libev however the code is so hard to understand, so I choose to learn libevent first whose code is relatively clearer. But I encounter a problem when try the example (http://www.wangafu.net/~nickm/libevent-book/01_intro.html).
How is the code event_add(state->write_event, NULL) in do_read() make do_write() function invoked?
/* For sockaddr_in */
#include <netinet/in.h>
/* For socket functions */
#include <sys/socket.h>
/* For fcntl */
#include <fcntl.h>
#include <event2/event.h>
#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#define MAX_LINE 16384
void do_read(evutil_socket_t fd, short events, void *arg);
void do_write(evutil_socket_t fd, short events, void *arg);
char
rot13_char(char c)
{
return c;
/* We don't want to use isalpha here; setting the locale would change
* which characters are considered alphabetical. */
if ((c >= 'a' && c <= 'm') || (c >= 'A' && c <= 'M'))
return c + 13;
else if ((c >= 'n' && c <= 'z') || (c >= 'N' && c <= 'Z'))
return c - 13;
else
return c;
}
struct fd_state {
char buffer[MAX_LINE];
size_t buffer_used;
size_t n_written;
size_t write_upto;
struct event *read_event;
struct event *write_event;
};
struct fd_state *
alloc_fd_state(struct event_base *base, evutil_socket_t fd)
{
struct fd_state *state = malloc(sizeof(struct fd_state));
if (!state)
return NULL;
state->read_event = event_new(base, fd, EV_READ|EV_PERSIST, do_read, state);
if (!state->read_event) {
free(state);
return NULL;
}
state->write_event =
event_new(base, fd, EV_WRITE|EV_PERSIST, do_write, state);
if (!state->write_event) {
event_free(state->read_event);
free(state);
return NULL;
}
state->buffer_used = state->n_written = state->write_upto = 0;
assert(state->write_event);
return state;
}
void
free_fd_state(struct fd_state *state)
{
event_free(state->read_event);
event_free(state->write_event);
free(state);
}
void
do_read(evutil_socket_t fd, short events, void *arg)
{
struct fd_state *state = arg;
char buf[1024];
int i;
ssize_t result;
while (1) {
assert(state->write_event);
result = recv(fd, buf, sizeof(buf), 0);
if (result <= 0)
break;
for (i=0; i < result; ++i) {
if (state->buffer_used < sizeof(state->buffer))
state->buffer[state->buffer_used++] = rot13_char(buf[i]);
if (buf[i] == '\n') {
assert(state->write_event);
**event_add(state->write_event, NULL);**
state->write_upto = state->buffer_used;
}
}
}
if (result == 0) {
free_fd_state(state);
} else if (result < 0) {
if (errno == EAGAIN) // XXXX use evutil macro
return;
perror("recv");
free_fd_state(state);
}
}
void
**do_write(evutil_socket_t fd, short events, void *arg)**
{
struct fd_state *state = arg;
while (state->n_written < state->write_upto) {
ssize_t result = send(fd, state->buffer + state->n_written,
state->write_upto - state->n_written, 0);
if (result < 0) {
if (errno == EAGAIN) // XXX use evutil macro
return;
free_fd_state(state);
return;
}
assert(result != 0);
state->n_written += result;
}
if (state->n_written == state->buffer_used)
state->n_written = state->write_upto = state->buffer_used = 1;
event_del(state->write_event);
}
void
do_accept(evutil_socket_t listener, short event, void *arg)
{
struct event_base *base = arg;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
int fd = accept(listener, (struct sockaddr*)&ss, &slen);
if (fd < 0) { // XXXX eagain??
perror("accept");
} else if (fd > FD_SETSIZE) {
close(fd); // XXX replace all closes with EVUTIL_CLOSESOCKET */
} else {
struct fd_state *state;
evutil_make_socket_nonblocking(fd);
state = alloc_fd_state(base, fd);
assert(state); /*XXX err*/
assert(state->write_event);
event_add(state->read_event, NULL);
}
}
void
run(void)
{
evutil_socket_t listener;
struct sockaddr_in sin;
struct event_base *base;
struct event *listener_event;
base = event_base_new();
if (!base)
return; /*XXXerr*/
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = 0;
sin.sin_port = htons(40713);
listener = socket(AF_INET, SOCK_STREAM, 0);
evutil_make_socket_nonblocking(listener);
#ifndef WIN32
{
int one = 1;
setsockopt(listener, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
}
#endif
if (bind(listener, (struct sockaddr*)&sin, sizeof(sin)) < 0) {
perror("bind");
return;
}
if (listen(listener, 16)<0) {
perror("listen");
return;
}
listener_event = event_new(base, listener, EV_READ|EV_PERSIST, do_accept, (void*)base);
/*XXX check it */
event_add(listener_event, NULL);
event_base_dispatch(base);
}
int
main(int c, char **v)
{
setvbuf(stdout, NULL, _IONBF, 0);
run();
return 0;
}
I'm not sure if I'm answering the same question you asked - I understand it as:
How does calling event_add(state->write_event, NULL) in do_read() lead to do_write() being invoked?
The key to figuring this out is understanding what the do_read() function is actually doing. do_read() is a callback function associated with a socket which has data to be read: this is set up with allocate_fd_state():
struct fd_state *
alloc_fd_state(struct event_base *base, evutil_socket_t fd)
{
/*
* Allocate a new fd_state structure, which will hold our read and write events
* /
struct fd_state *state = malloc(sizeof(struct fd_state));
[...]
/*
* Initialize a read event on the given file descriptor: associate the event with
* the given base, and set up the do_read callback to be invoked whenever
* data is available to be read on the file descriptor.
* /
state->read_event = event_new(base, fd, EV_READ|EV_PERSIST, do_read, state);
[...]
/*
* Set up another event on the same file descriptor and base, which invoked the
* do_write callback anytime the file descriptor is ready to be written to.
*/
state->write_event =
event_new(base, fd, EV_WRITE|EV_PERSIST, do_write, state);
[...]
return state;
}
At this point, though, neither of these events have been event_add()'ed to the event_base base. The instructions for what to do are all written out, but no one is looking at them. So how does anything get read? state->read_event is event_add()'ed to the base after an incoming connection is made. Look at do_accept():
void
do_accept(evutil_socket_t listener, short event, void *arg)
{
[ ... accept a new connection and give it a file descriptor fd ... ]
/*
* If the file descriptor is invalid, close it.
*/
if (fd < 0) { // XXXX eagain??
perror("accept");
} else if (fd > FD_SETSIZE) {
close(fd); // XXX replace all closes with EVUTIL_CLOSESOCKET */
/*
* Otherwise, if the connection was successfully accepted...
*/
} else {
[ ... allocate a new fd_state structure, and make the file descriptor non-blocking ...]
/*
* Here's where the magic happens. The read_event created back in alloc_fd_state()
* is finally added to the base associated with it.
*/
event_add(state->read_event, NULL);
}
}
So right after accepting a new connection, the program tells libevent to wait until there's data available on the connection, and then run the do_read() callback. At this point, it's still impossible for do_write() to be called. It needs to be event_add()'ed. This happens in do_read():
void
do_read(evutil_socket_t fd, short events, void *arg)
{
/* Create a temporary buffer to receive some data */
char buf[1024];
while (1) {
[ ... Receive the data, copying it into buf ... ]
[ ... if there is no more data to receive, or there was an error, exit this loop... ]
[ ... else, result = number of bytes received ... ]
for (i=0; i < result; ++i) {
[ ... if there's room in the buffer, copy in the rot13() encoded
version of the received data ... ]
/*
* Boom, headshot. If we've reached the end of the incoming data
* (assumed to be a newline), then ...
*/
if (buf[i] == '\n') {
[...]
/*
* Have libevent start monitoring the write_event, which calls do_write
* as soon as the file descriptor is ready to be written to.
*/
event_add(state->write_event, NULL);
[...]
}
}
}
[...]
}
So, after reading in some data from a file descriptor, the program starts waiting until
the file descriptor is ready to be written to, and then invokes do_write(). Program
flow looks like this:
[ set up an event_base and start waiting for events ]
[ if someone tries to connect ]
[ accept the connection ]
[ ... wait until there is data to read on the connection ... ]
[ read in data from the connection until there is no more left ]
[ ....wait until the connection is ready to be written to ... ]
[ write out our rot13() encoded response ]
I hope that a) that was the correct interpretation of your question, and b) this was a helpful answer.