GDResignationMaterials/485-breaker-sensor/util/fmc.c

#include "fmc.h"
#include "gd32e23x.h"
#include "util.h"
#include <stdio.h>
#include <string.h>

void fmc_erase_page(uint8_t page)
{
    uint32_t p_start_addr = FMC_WRITE_LAST_START_ADDR - page * FMC_PAGE_SIZE;
    fmc_unlock();
    /* clear all pending flags */
    fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);
    /* erase the flash pages */
    fmc_page_erase(p_start_addr);
    fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);

    fmc_lock();
}

void fmc_program(uint8_t page, uint32_t *data, uint32_t data_len)
{
    uint32_t p_start_addr = FMC_WRITE_LAST_START_ADDR - page * FMC_PAGE_SIZE;
    fmc_unlock();
    uint32_t address = p_start_addr;
    while (address < p_start_addr + FMC_PAGE_SIZE)
    {
        if (data_len <= 0)
            break;
        fmc_word_program(address, *data);
        address += 4U;
        data++;
        fmc_flag_clear(FMC_FLAG_END | FMC_FLAG_WPERR | FMC_FLAG_PGERR);
        data_len -= 4;
    }

    fmc_lock();
}

int8_t fmc_load(uint8_t page, uint8_t *data, uint32_t len)
{
    uint32_t p_start_addr = FMC_WRITE_LAST_START_ADDR - page * FMC_PAGE_SIZE;
    unsigned char *ptr = (unsigned char *)p_start_addr; // 将指针指向存储区首地址
    if (*ptr == FMC_DATA_VAILD_FLAG)
    {
        // 从Flash中读取到有效的配置数据
        memcpy(data, ptr, len);
        return 0;
    }
    return -1;
}

int8_t fmc_check(fmc_data_t *d, uint32_t len)
{
    if (d->data_valid_flag == FMC_DATA_VAILD_FLAG)
    {
        return fmc_check_cdata((uint8_t *)d, len);
    }
    else
    {
        return -1;
    }
}

uint8_t fmc_gen_cdata(uint8_t *d, uint32_t len)
{
    return 0;
}

int8_t fmc_check_cdata(uint8_t *d, uint32_t len)
{
    return 0;
}