Posted on January 23, 2018 at 06:17
Above is the IAR for CRC configuration.
I tried
__HAL_RCC_CRC_CLK_ENABLE(); but still the same result(
uwCRCValue
is always 0
)Below is my code.
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_HSI14|RCC_OSCILLATORTYPE_HSE |RCC_OSCILLATORTYPE_LSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.LSEState = RCC_LSE_ON; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSI14State = RCC_HSI14_ON; RCC_OscInitStruct.HSI14CalibrationValue = 16; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL3; RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); }/**Initializes the CPU, AHB and APB busses clocks
*/ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{ Error_Handler(); }PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_I2C1
|RCC_PERIPHCLK_RTC; PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_SYSCLK; PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK; PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); }/**Configure LSE Drive Capability
*/ __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);/**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, 3, 0);}static void MX_CRC_Init(void)
{ CrcHandle.Instance = CRC;/* The default polynomial is not used. It is required to defined it in CrcHandle.Init.GeneratingPolynomial*/
CrcHandle.Init.DefaultPolynomialUse = DEFAULT_POLYNOMIAL_ENABLE;/* Set the value of the polynomial */
//CrcHandle.Init.GeneratingPolynomial = DEFAULT_POLYNOMIAL_ENABLE;/* The size of the polynomial to configure the IP is 8b*/
CrcHandle.Init.CRCLength = CRC_POLYLENGTH_32B;/* The default init value is used */
CrcHandle.Init.DefaultInitValueUse = DEFAULT_INIT_VALUE_DISABLE;/* The input data are not inverted */
CrcHandle.Init.InputDataInversionMode = CRC_INPUTDATA_INVERSION_NONE;/* The output data are not inverted */
CrcHandle.Init.OutputDataInversionMode = CRC_OUTPUTDATA_INVERSION_DISABLE;/* The input data are 32 bits lenght */
CrcHandle.InputDataFormat = CRC_INPUTDATA_FORMAT_WORDS;__HAL_RCC_CRC_CLK_ENABLE();
if (HAL_CRC_Init(&CrcHandle) != HAL_OK) { /* Initialization Error */ Error_Handler(); }}
