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/**
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******************************************************************************
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* @file main.c
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* @author MCU Application Team
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* @brief Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2023 Puya Semiconductor Co.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by Puya under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "py32f403xx_ll_Start_Kit.h"
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/* Private define ------------------------------------------------------------*/
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#define BUFFER_SIZE 32
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/* Private variables ---------------------------------------------------------*/
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uint32_t aSRC_Const_Buffer[BUFFER_SIZE]; /* Data transmission source buffer */
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uint32_t aDST_Buffer[BUFFER_SIZE]; /* Data transmission destination buffer */
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__IO uint32_t transferCompleteDetected=0; /* When the transmission is completed, this position 1 */
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__IO uint32_t transferErrorDetected=0; /* When a transmission error occurs, this position 1 */
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__IO uint32_t transferFailedDetected=0; /* When there is an error in transmitting data, this position 1 */
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/* Private user code ---------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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static void APP_SystemClockConfig(void);
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static void APP_DmaConfig(void);
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/**
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* @brief Main program.
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* @param None
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* @retval int
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*/
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int main(void)
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{
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/* Enable SYSCFG and PWR clock */
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LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
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/* 3 bits for pre-emption priority, 0 bits for subpriority */
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NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_3);
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/* Configure system clock */
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APP_SystemClockConfig();
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/* Initialize LED */
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BSP_LED_Init(LED_GREEN);
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/* Initialize data for DMA source buffer */
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for(uint8_t i=0; i<BUFFER_SIZE; i++)
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{
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aSRC_Const_Buffer[i]=i;
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}
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/* Configuring DMA */
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APP_DmaConfig();
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while (1)
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{
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/* DMA transfer completed, but data is incorrect */
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if(transferFailedDetected == 1 && transferCompleteDetected == 1 )
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{
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while(1)
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{
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BSP_LED_Toggle(LED_GREEN);
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LL_mDelay(500);
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}
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}
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/* DMA transmission completed and data correct */
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if(transferFailedDetected == 0 && transferCompleteDetected == 1 )
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{
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BSP_LED_On(LED_GREEN);
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while(1)
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{
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}
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}
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/* DMA transmission error */
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if(transferErrorDetected == 1 )
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{
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BSP_LED_On(LED_GREEN);
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while(1)
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{
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BSP_LED_Toggle(LED_GREEN);
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LL_mDelay(500);
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}
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}
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}
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}
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/**
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* @brief DMA configuration function
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* @param None
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* @retval None
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*/
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static void APP_DmaConfig(void)
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{
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LL_DMA_InitTypeDef dma_initstruct = {0};
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/* Enable DMA clock */
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LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
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/* Configure DMA function parameters */
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dma_initstruct.PeriphOrM2MSrcAddress = (uint32_t)&aSRC_Const_Buffer; /* Source Address Settings */
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dma_initstruct.MemoryOrM2MDstAddress = (uint32_t)&aDST_Buffer; /* Target Address Settings */
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dma_initstruct.Direction = LL_DMA_DIRECTION_MEMORY_TO_MEMORY; /* M2M mode */
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dma_initstruct.Mode = LL_DMA_MODE_NORMAL; /* DMA cycle mode off */
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dma_initstruct.PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_INCREMENT; /* Enable peripheral address increment mode */
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dma_initstruct.MemoryOrM2MDstIncMode = LL_DMA_MEMORY_INCREMENT; /* Memory address increment mode enable */
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dma_initstruct.PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_WORD; /* Peripheral data width is 32 bits */
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dma_initstruct.MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_WORD; /* Memory data width is 32 bits */
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dma_initstruct.NbData = BUFFER_SIZE;
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dma_initstruct.Priority = LL_DMA_PRIORITY_HIGH; /* Channel priority is high */
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/* Initialize DMA */
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if (LL_DMA_Init(DMA1, LL_DMA_CHANNEL_1, &dma_initstruct) != SUCCESS)
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{
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APP_ErrorHandler();
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}
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/* Enable interrupt */
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LL_DMA_EnableIT_TC(DMA1, LL_DMA_CHANNEL_1);
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LL_DMA_EnableIT_TE(DMA1, LL_DMA_CHANNEL_1);
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NVIC_SetPriority(DMA1_Channel1_IRQn, 0);
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NVIC_EnableIRQ(DMA1_Channel1_IRQn);
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/* Enable DMA */
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LL_DMA_EnableChannel(DMA1, LL_DMA_CHANNEL_1);
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}
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/**
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* @brief DMA transfer completion callback function
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* @param None
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* @retval None
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*/
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void APP_TransferCompleteCallback(void)
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{
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for(uint16_t i=0; i<BUFFER_SIZE; i++)
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{
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if(aDST_Buffer[i] != aSRC_Const_Buffer[i])
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{
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transferFailedDetected = 1;
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break;
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}
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}
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transferCompleteDetected = 1;
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}
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/**
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* @brief DMA transfer error callback function
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* @param None
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* @retval None
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*/
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void APP_TransferErrorCallback(void)
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{
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transferErrorDetected = 1;
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}
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/**
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* @brief Configure system clock
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* @param None
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* @retval None
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*/
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static void APP_SystemClockConfig(void)
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{
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/* Enable HSI */
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LL_RCC_HSI_Enable();
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while(LL_RCC_HSI_IsReady() != 1)
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{
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}
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/* Set AHB prescaler: HCLK = SYSCLK */
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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/* Select HSI as system clock source */
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI)
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{
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}
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/* Set APB1 & APB2 prescaler: PCLK1 = HCLK, PCLK2 = HCLK/2 */
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LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
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LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_2);
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/* Set systick to 1ms in using frequency set to 8MHz */
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LL_Init1msTick(8000000);
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/* Update the SystemCoreClock global variable(which can be updated also through SystemCoreClockUpdate function) */
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LL_SetSystemCoreClock(8000000);
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}
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/**
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* @brief Error handling function
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* @param None
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* @retval None
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*/
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void APP_ErrorHandler(void)
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{
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/* Infinite loop */
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while (1)
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{
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file：Pointer to the source file name
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* @param line：assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add His own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif /* USE_FULL_ASSERT */
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/************************ (C) COPYRIGHT Puya *****END OF FILE******************/
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