【GD32F310开发板试用】FMC功能测试

首发极术社区。如对兆易创新GD32F310 MCU感兴趣，欢迎添加微信 aijishu2020 加入GD32技术讨论群。

简介

FMC是GD32MCU的内部flash读写控制器，主要功能是对主编程块和选项字节的擦写。本次测试使用的是GD32F310K8T6,其flash大小为64K，共64页，每页大小1K对应的地址为0x0800 0000--0x0800 FFFF本次实验的串口部分的代码来源于https://aijishu.com/a/1060000000314295

实验流程

• 开机自动在0x08008000-0x0800C000区域内写入数据，之后对写入的数据重新读取，判断是否写入成功

• 通过串口0输出

使用到的固件库函数

• 页擦除函数：
  fmc_state_enum fmc_page_erase(uint32_t page_address);

• 字写入函数
  fmc_state_enum fmc_word_program(uint32_t address, uint32_t data);

代码部分

.c文件

#include "gd32f3x0.h"#include "bsp_interflash.h"#include "bsp_usart.h"int InternalFlash_Test(void){uint32_t EraseCounter = 0x00; //记录要擦除多少页uint32_t Address = 0x00;//记录写入的地址uint32_t Data = 0x3210ABCD;//记录写入的数据uint32_t NbrOfPage = 0x00;//记录写入多少页fmc_state_enum FLASHStatus = FMC_READY; //记录每次擦除的结果TestStatus MemoryProgramStatus = PASSED;//记录整个测试结果  /* 解锁 */  fmc_unlock();  /* 计算要擦除多少页 */  NbrOfPage = (WRITE_END_ADDR - WRITE_START_ADDR) / FLASH_PAGE_SIZE;  /* 按页擦除*/  for(EraseCounter = 0; (EraseCounter < NbrOfPage) && (FLASHStatus == FMC_READY); EraseCounter++)  {    FLASHStatus = fmc_page_erase(WRITE_START_ADDR + (FLASH_PAGE_SIZE * EraseCounter));}    /* 向内部FLASH写入数据 */  Address = WRITE_START_ADDR;  while((Address < WRITE_END_ADDR) && (FLASHStatus == FMC_READY))  {    FLASHStatus = fmc_word_program(Address, Data);    Address = Address + 4;  }  fmc_lock();    /* 检查写入的数据是否正确 */  Address = WRITE_START_ADDR;  while((Address < WRITE_END_ADDR) && (MemoryProgramStatus != FAILED))  {    if((*(__IO uint32_t*) Address) != Data)    {      MemoryProgramStatus = FAILED;    }    Address += 4;  }return MemoryProgramStatus;}

.h文件

#ifndef BSP_INTERFLASH_H#define BSP_INTERFLASH_H#include "gd32f3x0.h"#define FLASH_PAGE_SIZE    ((uint16_t)0x400)//1024//写入的起始地址与结束地址#define WRITE_START_ADDR  ((uint32_t)0x08008000)#define WRITE_END_ADDR    ((uint32_t)0x0800C000)typedef enum {FAILED = 0,   PASSED = !FAILED} TestStatus;int InternalFlash_Test(void);#endif

main.c

#include "gd32f3x0.h"#include "gd32f310k_start.h"#include "systick.h"#include "bsp_interflash.h"#include "bsp_usart.h"#include "usart.h"#include "gpio.h"/*!    \brief      main function    \param[in]  none    \param[out] none    \retval     none*/int main(void){  systick_config();My_GPIO_Init();My_Usart_MspInit();My_Usart_Init();/* enable the LED GPIO clock */rcu_periph_clock_enable(RCU_GPIOA);/* configure led GPIO port */ gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_8);gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_8);gpio_bit_reset(GPIOA, GPIO_PIN_8);usart0_printf("Hello,GD32!\r\n");usart0_printf("正在进行读写内部FLASH实验，请耐心等待\r\n");if(InternalFlash_Test()== PASSED){gpio_bit_write(GPIOA, GPIO_PIN_8, SET);usart0_printf("读写内部FLASH测试成功\r\n");}else{usart0_printf("读写内部FLASH测试失败\r\n");gpio_bit_write(GPIOA, GPIO_PIN_8, RESET);}    while(1){    }}

实验结果

0x0800 8000–0x0800BFFF区域写满0x3210ABCD