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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 FLASH_USER_START_ADDR 0x08004000
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/* Private variables ---------------------------------------------------------*/
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const uint32_t DATA[128] =
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{
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0x01010101, 0x23456789, 0x3456789A, 0x456789AB, 0x56789ABC, 0x6789ABCD, 0x789ABCDE, 0x89ABCDEF,
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0x9ABCDEF0, 0xABCDEF01, 0xBCDEF012, 0xCDEF0123, 0xDEF01234, 0xEF012345, 0xF0123456, 0x01234567,
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0x01010101, 0x23456789, 0x3456789A, 0x456789AB, 0x56789ABC, 0x6789ABCD, 0x789ABCDE, 0x89ABCDEF,
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0x9ABCDEF0, 0xABCDEF01, 0xBCDEF012, 0xCDEF0123, 0xDEF01234, 0xEF012345, 0xF0123456, 0x01234567,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x01010101, 0x23456789, 0x3456789A, 0x456789AB, 0x56789ABC, 0x6789ABCD, 0x789ABCDE, 0x89ABCDEF,
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0x9ABCDEF0, 0xABCDEF01, 0xBCDEF012, 0xCDEF0123, 0xDEF01234, 0xEF012345, 0xF0123456, 0x01234567,
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0x01010101, 0x23456789, 0x3456789A, 0x456789AB, 0x56789ABC, 0x6789ABCD, 0x789ABCDE, 0x89ABCDEF,
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0x9ABCDEF0, 0xABCDEF01, 0xBCDEF012, 0xCDEF0123, 0xDEF01234, 0xEF012345, 0xF0123456, 0x01234567,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA, 0x55555555, 0x23456789, 0xAAAAAAAA,
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};
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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_FlashErase(void);
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static void APP_FlashProgram(void);
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static void APP_FlashBlank(void);
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static void APP_FlashVerify(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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BSP_USART_Config();
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/* Initialize LED */
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BSP_LED_Init(LED_GREEN);
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/* Initialize button */
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BSP_PB_Init(BUTTON_USER, BUTTON_MODE_GPIO);
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/* Wait for the button to be pressed, to prevent erasing FLASH on every power-up */
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while (BSP_PB_GetState(BUTTON_USER))
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{
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}
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/* Unlock FLASH */
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LL_FLASH_Unlock(FLASH);
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/* Erase FLASH */
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APP_FlashErase();
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/* Check if FLASH is blank */
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APP_FlashBlank();
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/* Program FLASH */
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APP_FlashProgram();
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/* Lock FLASH */
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LL_FLASH_Lock(FLASH);
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/* Verify FLASH */
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APP_FlashVerify();
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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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/**
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* @brief FLASH erase function
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* @param None
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* @retval None
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*/
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static void APP_FlashErase(void)
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{
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uint32_t flash_program_start = FLASH_USER_START_ADDR ; /* Start address of user erase page */
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uint32_t flash_program_end = (FLASH_USER_START_ADDR + sizeof(DATA)); /* End address of user erase page */
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while (flash_program_start < flash_program_end)
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{
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/* Wait Busy=0 */
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while(LL_FLASH_IsActiveFlag_BUSY(FLASH)==1);
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/* Enable EOP */
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LL_FLASH_EnableIT_EOP(FLASH);
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/* Enable Page Erase */
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LL_FLASH_EnablePageErase(FLASH);
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/* Set Erase Address */
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LL_FLASH_SetEraseAddress(FLASH,flash_program_start);
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/* Wait Busy=0 */
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while(LL_FLASH_IsActiveFlag_BUSY(FLASH)==1);
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/* Wait EOP=1 */
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while(LL_FLASH_IsActiveFlag_EOP(FLASH)==0);
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/* Clear EOP */
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LL_FLASH_ClearFlag_EOP(FLASH);
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/* Disable EOP */
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LL_FLASH_DisableIT_EOP(FLASH);
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/* Disable Page Erase */
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LL_FLASH_DisablePageErase(FLASH);
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flash_program_start += FLASH_PAGE_SIZE; /* Point to the start address of the next page to be erase */
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}
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}
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/**
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* @brief FLASH programming function
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* @param None
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* @retval None
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*/
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static void APP_FlashProgram(void)
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{
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uint32_t flash_program_start = FLASH_USER_START_ADDR ; /* Start address of user write flash */
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uint32_t flash_program_end = (FLASH_USER_START_ADDR + sizeof(DATA)); /* End address of user write flash */
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uint32_t *src = (uint32_t *)DATA; /* Pointer to array */
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while (flash_program_start < flash_program_end)
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{
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/* Wait Busy=0 */
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while(LL_FLASH_IsActiveFlag_BUSY(FLASH)==1);
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/* Enable EOP */
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LL_FLASH_EnableIT_EOP(FLASH);
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/* Enable Program */
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LL_FLASH_EnablePageProgram(FLASH);
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/* Page Program */
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LL_FLASH_PageProgram(FLASH,flash_program_start,src);
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/* Wait Busy=0 */
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while(LL_FLASH_IsActiveFlag_BUSY(FLASH)==1);
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/* Wait EOP=1 */
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while(LL_FLASH_IsActiveFlag_EOP(FLASH)==0);
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/* Clear EOP */
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LL_FLASH_ClearFlag_EOP(FLASH);
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/* Disable EOP */
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LL_FLASH_DisableIT_EOP(FLASH);
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/* Disable Program */
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LL_FLASH_DisablePageProgram(FLASH);
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flash_program_start += FLASH_PAGE_SIZE; /* Point to the start address of the next page to be written */
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src += FLASH_PAGE_SIZE / 4; /* Point to the next data to be written */
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}
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}
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/**
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* @brief FLASH blank check function
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* @param None
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* @retval None
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*/
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static void APP_FlashBlank(void)
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{
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uint32_t addr = 0;
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while (addr < sizeof(DATA))
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{
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if (0xFFFFFFFF != HW32_REG(FLASH_USER_START_ADDR + addr))
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{
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APP_ErrorHandler();
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}
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addr += 4;
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}
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}
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/**
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* @brief FLASH verification function
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* @param None
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* @retval None
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*/
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static void APP_FlashVerify(void)
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{
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uint32_t addr = 0;
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while (addr < sizeof(DATA))
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{
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if (DATA[addr / 4] != HW32_REG(FLASH_USER_START_ADDR + addr))
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{
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APP_ErrorHandler();
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}
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addr += 4;
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}
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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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