sundp
/
STM32CubeWL
mirror of https://github.com/STMicroelectronics/STM32CubeWL.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
STM32CubeWL/Projects/NUCLEO-WL55JC/Examples/UART/LPUART_WakeUpFromStop/Src/main.c

740 lines
23 KiB
C
Raw Blame History

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file UART/LPUART_WakeUpFromStop/Src/main.c
* @author MCD Application Team
* @brief This sample code shows how to use UART through the STM32WLxx
* HAL API (LPUART instance) to wake up the MCU from STOP mode
* Two boards are used, one which enters STOP mode and the second
* one which sends the wake-up stimuli.
******************************************************************************
* @attention
*
* Copyright (c) 2020 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stm32wlxx_nucleo.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* to enable for the board entering STOP mode,
to disable for the board sending wake-up stimuli */
#define BOARD_IN_STOP_MODE
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
UART_HandleTypeDef hlpuart1;
/* USER CODE BEGIN PV */
UART_WakeUpTypeDef WakeUpSelection;
__IO uint32_t UserButtonStatus = 0; /* set to 1 after User Button interrupt */
/* Buffer used for confirmation messages transmission */
uint8_t aTxBuffer1[] = "RXNE wake-up successful";
uint8_t aTxBuffer2[] = "Start bit detection wake-up successful";
uint8_t aTxBuffer3[] = "7-bit address match wake-up successful";
uint8_t aTxBuffer4[] = "4-bit address match wake-up successful";
uint8_t aTxBuffer[] = "Start bit detection wake-up successful";
uint8_t WakeUpTrigger1 = 'S'; /* Whatever the value */
uint8_t WakeUpTrigger2 = 'T'; /* Whatever the value */
uint8_t WakeUpTrigger3 = 0xA9; /* Value matches with address 0x29 */
uint8_t WakeUpTrigger4 = 0x82; /* Value matches with address 0x02 */
/* Buffer used for reception */
uint8_t aRxBuffer[RXBUFFERSIZE];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_LPUART1_UART_Init(void);
/* USER CODE BEGIN PFP */
#if defined(BOARD_IN_STOP_MODE)
void SystemClock_Config_fromSTOP(void);
#else
static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength);
#endif /* defined(BOARD_IN_STOP_MODE) */
/* 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_LPUART1_UART_Init();
/* USER CODE BEGIN 2 */
/*##########################################################################*/
/*##-1- Wake Up first step ################################################*/
/*##########################################################################*/
/* Configure LED2*/
BSP_LED_Init(LED2);
#ifdef BOARD_IN_STOP_MODE
/* LED2 is on till stop mode */
BSP_LED_On(LED2);
/* wait for two seconds before test start */
HAL_Delay(2000);
/* make sure that no LPUART transfer is on-going */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_BUSY) == SET);
/* make sure that LPUART is ready to receive
* (test carried out again later in HAL_UARTEx_StopModeWakeUpSourceConfig) */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_REACK) == RESET);
/* set the wake-up event:
* specify wake-up on RXNE flag */
WakeUpSelection.WakeUpEvent = UART_WAKEUP_ON_READDATA_NONEMPTY;
if (HAL_UARTEx_StopModeWakeUpSourceConfig(&hlpuart1, WakeUpSelection) != HAL_OK)
{
Error_Handler();
}
/* Enable the UART Wake UP from STOP mode Interrupt */
__HAL_UART_ENABLE_IT(&hlpuart1, UART_IT_WUF);
/* about to enter STOP mode: switch off LED2 */
BSP_LED_Off(LED2);
/* enable MCU wake-up by LPUART */
HAL_UARTEx_EnableStopMode(&hlpuart1);
/* enter STOP mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
/* ... STOP mode ... */
/* at that point, MCU has been awoken: LED2 has been turned back on */
SystemClock_Config_fromSTOP();
/* Wake Up based on RXNE flag successful */
HAL_UARTEx_DisableStopMode(&hlpuart1);
/* wait for some delay */
HAL_Delay(100);
/* Inform other board that wake up is successful */
if (HAL_UART_Transmit(&hlpuart1, (uint8_t *)aTxBuffer1, COUNTOF(aTxBuffer1) - 1, 5000) != HAL_OK)
{
Error_Handler();
}
/*##########################################################################*/
/*##-2- Wake Up second step ###############################################*/
/*##########################################################################*/
/* make sure that no LPUART transfer is on-going */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_BUSY) == SET);
/* make sure that LPUART is ready to receive
* (test carried out again later in HAL_UARTEx_StopModeWakeUpSourceConfig) */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_REACK) == RESET);
/* set the wake-up event:
* specify wake-up on start-bit detection */
WakeUpSelection.WakeUpEvent = UART_WAKEUP_ON_STARTBIT;
if (HAL_UARTEx_StopModeWakeUpSourceConfig(&hlpuart1, WakeUpSelection) != HAL_OK)
{
Error_Handler();
}
/* Enable the LPUART Wake UP from STOP mode Interrupt */
__HAL_UART_ENABLE_IT(&hlpuart1, UART_IT_WUF);
/* about to enter STOP mode: switch off LED2 */
BSP_LED_Off(LED2);
/* enable MCU wake-up by LPUART */
HAL_UARTEx_EnableStopMode(&hlpuart1);
/* enter STOP mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
/* ... STOP mode ... */
/* at that point, MCU has been awoken: LED2 has been turned back on */
SystemClock_Config_fromSTOP();
/* Wake Up on start bit detection successful */
HAL_UARTEx_DisableStopMode(&hlpuart1);
/* wait for some delay */
HAL_Delay(100);
/* Inform other board that wake up is successful */
if (HAL_UART_Transmit(&hlpuart1, (uint8_t *)aTxBuffer2, COUNTOF(aTxBuffer2) - 1, 5000) != HAL_OK)
{
Error_Handler();
}
/*##########################################################################*/
/*##-3- Wake Up third step ################################################*/
/*##########################################################################*/
/* make sure that no LPUART transfer is on-going */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_BUSY) == SET);
/* make sure that LPUART is ready to receive
* (test carried out again later in HAL_UARTEx_StopModeWakeUpSourceConfig) */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_REACK) == RESET);
/* set the wake-up event:
* specify address-to-match type.
* The address is 0x29, meaning the character triggering the
* address match is 0xA9 */
WakeUpSelection.WakeUpEvent = UART_WAKEUP_ON_ADDRESS;
WakeUpSelection.AddressLength = UART_ADDRESS_DETECT_7B;
WakeUpSelection.Address = 0x29;
if (HAL_UARTEx_StopModeWakeUpSourceConfig(&hlpuart1, WakeUpSelection) != HAL_OK)
{
Error_Handler();
}
/* Enable the LPUART Wake UP from stop mode Interrupt */
__HAL_UART_ENABLE_IT(&hlpuart1, UART_IT_WUF);
/* about to enter stop mode: switch off LED2 */
BSP_LED_Off(LED2);
/* enable MCU wake-up by LPUART */
HAL_UARTEx_EnableStopMode(&hlpuart1);
/* enter STOP mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
/* ... STOP mode ... */
/* at that point, MCU has been awoken: LED2 has been turned back on */
SystemClock_Config_fromSTOP();
/* Wake Up on 7-bit address detection successful */
HAL_UARTEx_DisableStopMode(&hlpuart1);
/* wait for some delay */
HAL_Delay(100);
/* Inform other board that wake up is successful */
if (HAL_UART_Transmit(&hlpuart1, (uint8_t *)aTxBuffer3, COUNTOF(aTxBuffer3) - 1, 5000) != HAL_OK)
{
Error_Handler();
}
/*##########################################################################*/
/*##-4- Wake Up fourth step ###############################################*/
/*##########################################################################*/
/* make sure that no LPUART transfer is on-going */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_BUSY) == SET);
/* make sure that LPUART is ready to receive
* (test carried out again later in HAL_UARTEx_StopModeWakeUpSourceConfig) */
while (__HAL_UART_GET_FLAG(&hlpuart1, USART_ISR_REACK) == RESET);
/* set the wake-up event:
* specify address-to-match type.
* The address is 0x2, meaning the character triggering the
* address match is 0x82 */
WakeUpSelection.WakeUpEvent = UART_WAKEUP_ON_ADDRESS;
WakeUpSelection.AddressLength = UART_ADDRESS_DETECT_4B;
WakeUpSelection.Address = 0x2;
if (HAL_UARTEx_StopModeWakeUpSourceConfig(&hlpuart1, WakeUpSelection) != HAL_OK)
{
Error_Handler();
}
/* Enable the LPUART Wake UP from STOP mode Interrupt */
__HAL_UART_ENABLE_IT(&hlpuart1, UART_IT_WUF);
/* about to enter STOP mode: switch off LED2 */
BSP_LED_Off(LED2);
/* enable MCU wake-up by LPUART */
HAL_UARTEx_EnableStopMode(&hlpuart1);
/* enter STOP mode */
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
/* ... STOP mode ... */
/* at that point, MCU has been awoken: LED2 has been turned back on */
SystemClock_Config_fromSTOP();
/* Wake Up on 4-bit address detection successful */
/* wait for some delay */
HAL_Delay(100);
/* Inform other board that wake up is successful */
if (HAL_UART_Transmit(&hlpuart1, (uint8_t *)aTxBuffer4, COUNTOF(aTxBuffer4) - 1, 5000) != HAL_OK)
{
Error_Handler();
}
#else
/*##########################################################################*/
/*##-1- Prepare the wake-up from stop mode #################################*/
/*##########################################################################*/
/* initialize the User push-button in Interrupt mode */
BSP_PB_Init(BUTTON_SW1, BUTTON_MODE_EXTI);
/* Wait for User push-button press before starting the test.
In the meantime, LED2 is blinking (100ms delay)*/
while (UserButtonStatus == 0)
{
/* Toggle LED2 */
BSP_LED_Toggle(LED2);
HAL_Delay(100);
}
/*##########################################################################*/
/*##-2- Send the wake-up from stop mode first trigger ######################*/
/*## (RXNE flag setting) ######################*/
/*##########################################################################*/
BSP_LED_On(LED2);
if (HAL_UART_Transmit(&hlpuart1, &WakeUpTrigger1, 1, 5000) != HAL_OK)
{
Error_Handler();
}
/* Put LPUART peripheral in reception process to wait for other board
wake up confirmation */
if (HAL_UART_Receive(&hlpuart1, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer1) - 1, 10000) != HAL_OK)
{
Error_Handler();
}
BSP_LED_Off(LED2);
/* Compare the expected and received buffers */
if (Buffercmp((uint8_t *)aTxBuffer1, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer1) - 1))
{
Error_Handler();
}
/* wait for two seconds before test second step */
HAL_Delay(2000);
/*##########################################################################*/
/*##-3- Send the wake-up from stop mode second trigger #####################*/
/*## (start Bit detection) #####################*/
/*##########################################################################*/
BSP_LED_On(LED2);
if (HAL_UART_Transmit(&hlpuart1, &WakeUpTrigger2, 1, 5000) != HAL_OK)
{
Error_Handler();
}
/* Put LPUART peripheral in reception process to wait for other board
wake up confirmation */
if (HAL_UART_Receive(&hlpuart1, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer2) - 1, 10000) != HAL_OK)
{
Error_Handler();
}
BSP_LED_Off(LED2);
/* Compare the expected and received buffers */
if (Buffercmp((uint8_t *)aTxBuffer2, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer2) - 1))
{
Error_Handler();
}
/* wait for two seconds before test third step */
HAL_Delay(2000);
/*##########################################################################*/
/*##-4- Send the wake-up from stop mode third trigger ######################*/
/*## (7-bit address match) ######################*/
/*##########################################################################*/
BSP_LED_On(LED2);
if (HAL_UART_Transmit(&hlpuart1, &WakeUpTrigger3, 1, 5000) != HAL_OK)
{
Error_Handler();
}
/* Put LPUART peripheral in reception process to wait for other board
wake up confirmation */
if (HAL_UART_Receive(&hlpuart1, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer3) - 1, 10000) != HAL_OK)
{
Error_Handler();
}
BSP_LED_Off(LED2);
/* Compare the expected and received buffers */
if (Buffercmp((uint8_t *)aTxBuffer3, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer3) - 1))
{
Error_Handler();
}
/* wait for two seconds before test fourth and last step */
HAL_Delay(2000);
/*##########################################################################*/
/*##-5- Send the wake-up from stop mode fourth trigger #####################*/
/*## (4-bit address match) #####################*/
/*##########################################################################*/
BSP_LED_On(LED2);
if (HAL_UART_Transmit(&hlpuart1, &WakeUpTrigger4, 1, 5000) != HAL_OK)
{
Error_Handler();
}
/* Put LPUART peripheral in reception process to wait for other board
wake up confirmation */
if (HAL_UART_Receive(&hlpuart1, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer4) - 1, 10000) != HAL_OK)
{
Error_Handler();
}
BSP_LED_Off(LED2);
/* Compare the expected and received buffers */
if (Buffercmp((uint8_t *)aTxBuffer4, (uint8_t *)aRxBuffer, COUNTOF(aTxBuffer4) - 1))
{
Error_Handler();
}
HAL_Delay(2000);
#endif /* BOARD_IN_STOP_MODE */
/* Turn on LED2 if test passes then enter infinite loop */
BSP_LED_On(LED2);
/* USER CODE END 2 */
/* 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 = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV4;
RCC_OscInitStruct.PLL.PLLN = 24;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Configure the SYSCLKSource, HCLK, PCLK1 and PCLK2 clocks dividers
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK3|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_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.AHBCLK3Divider = RCC_SYSCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief LPUART1 Initialization Function
* @param None
* @retval None
*/
static void MX_LPUART1_UART_Init(void)
{
/* USER CODE BEGIN LPUART1_Init 0 */
/* USER CODE END LPUART1_Init 0 */
/* USER CODE BEGIN LPUART1_Init 1 */
/* USER CODE END LPUART1_Init 1 */
hlpuart1.Instance = LPUART1;
hlpuart1.Init.BaudRate = 9600;
hlpuart1.Init.WordLength = UART_WORDLENGTH_8B;
hlpuart1.Init.StopBits = UART_STOPBITS_1;
hlpuart1.Init.Parity = UART_PARITY_NONE;
hlpuart1.Init.Mode = UART_MODE_TX_RX;
hlpuart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
hlpuart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
hlpuart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
hlpuart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
hlpuart1.FifoMode = UART_FIFOMODE_DISABLE;
if (HAL_UART_Init(&hlpuart1) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&hlpuart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&hlpuart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&hlpuart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LPUART1_Init 2 */
#ifdef BOARD_IN_STOP_MODE
LPUART1_EXTI_ENABLE_IT();
#endif /* BOARD_IN_STOP_MODE */
/* USER CODE END LPUART1_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
}
/* USER CODE BEGIN 4 */
#if defined(BOARD_IN_STOP_MODE)
/**
* @brief System Clock Configuration restored after STOP mode
* @param None
* @retval None
*/
void SystemClock_Config_fromSTOP(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
uint32_t pFLatency = 0;
/* Get the Oscillators configuration from the internal RCC registers */
HAL_RCC_GetOscConfig(&RCC_OscInitStruct);
/* Wake up on HSI, re-enable HSI and PLL with HSI as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV4;
RCC_OscInitStruct.PLL.PLLN = 24;
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/* Get the clock prescalers configuration from the internal RCC registers */
HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &pFLatency);
/* Select PLL as system clock source */
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, pFLatency) != HAL_OK)
{
Error_Handler();
}
}
#endif
/**
* @brief UART error callbacks
* @param UartHandle: UART handle
* @note This example shows a simple way to report transfer error, and you can
* add your own implementation.
* @retval None
*/
void HAL_UART_ErrorCallback(UART_HandleTypeDef *UartHandle)
{
Error_Handler();
}
/**
* @brief EXTI line detection callbacks
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if (GPIO_Pin == BUTTON_SW1_PIN)
{
UserButtonStatus = 1;
}
}
/**
* @brief UART wakeup from Stop mode callback
* @param huart: uart handle
* @retval None
*/
void HAL_UARTEx_WakeupCallback(UART_HandleTypeDef *huart)
{
/* Turn back on LED2 */
BSP_LED_On(LED2);
}
#if !defined(BOARD_IN_STOP_MODE)
/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length
* @retval 0 : pBuffer1 identical to pBuffer2
* >0 : pBuffer1 differs from pBuffer2
*/
static uint16_t Buffercmp(uint8_t *pBuffer1, uint8_t *pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if ((*pBuffer1) != *pBuffer2)
{
return BufferLength;
}
pBuffer1++;
pBuffer2++;
}
return 0;
}
#endif /* !defined(BOARD_IN_STOP_MODE) */
/* 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 */
while (1)
{
/* In case of error, LED2 transmits a sequence of three dots, three dashes, three dots */
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(300);
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(300);
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(300);
BSP_LED_On(LED2);
HAL_Delay(700);
BSP_LED_Off(LED2);
HAL_Delay(700);
BSP_LED_On(LED2);
HAL_Delay(700);
BSP_LED_Off(LED2);
HAL_Delay(700);
BSP_LED_On(LED2);
HAL_Delay(700);
BSP_LED_Off(LED2);
HAL_Delay(700);
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(300);
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(300);
BSP_LED_On(LED2);
HAL_Delay(300);
BSP_LED_Off(LED2);
HAL_Delay(800);
}
/* 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) */
/* Infinite loop */
while (1)
{
}
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
Reference in New Issue View Git Blame Copy Permalink