[经验]

在GD32F310开发板上进行FMC功能测试

王芳

2022-11-11 15:17:23

786 GD32 Flash单片机 GPIO 控制器

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

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){

    }
}