内部flash跨扇区写读问题

453044814@qq.co · 发表于 2017-1-13 10:05:45

本帖最后由 453044814@qq.com 于 2017-1-13 10:07 编辑

#define ErrorObjSize                      7
#define FLASH_HISTORICAL_EVENT_START_ADDR       0X08050000
      typedef struct{
            uint8_t             error_type;
            uint8_t             error_bus;
            uint16_t             error_term_id;
            uint8_t             error_term_type;
            uint8_t             light_type;

            uint16_t             error_year;
            uint8_t             error_month;
            uint8_t             error_day;
            uint8_t             error_hour;
            uint8_t             error_min;
            uint8_t             error_sec;

      }_EVENT_LOG_LIST_obj;
uint16_t NewEventSavrFlashAddr=0;
/*****************************************************************************************************/
/*记录日志*/
void record_new_event(_EVENT_LOG_LIST_obj* data)
{
      static uint16_t j=0;
            uint16_t buffer[ErrorObjSize];
            uint32_t addr32;
            buffer[0] = (data->error_type)<<8 | (data->error_bus);
            buffer[1] = data->error_term_id;
            buffer[2] = (data->error_term_type)<<8 | (data->light_type);

            buffer[3] = calendar.w_year;
            buffer[4] = (calendar.w_month)<<8 | (calendar.w_date);
            buffer[5] = (calendar.hour)<<8 | (calendar.min);
            buffer[6] = (calendar.sec)<<8;

            addr32 = FLASH_HISTORICAL_EVENT_START_ADDR + NewEventSavrFlashAddr*ErrorObjSize*2;
            if(j==146)
            {
                     delay_ms(20);
                     /*
                              addr = FLASH_HISTORICAL_EVENT_START_ADDR+2044 = 0x08507fc 要跨扇区了
                              写入buffer = {0xe801,0x0007,0x080a,0x07e1,0x010b,0x1311,0x2000}
                              读出buffer = {0xe801,0x0007,0xffff,0xffff,0xffff,0xffff,0xffff}
                     */
            }
            STMFLASH_Write(addr32,buffer,ErrorObjSize);
            j++;

            delay_ms(50);
            STMFLASH_Read(addr32,buffer,ErrorObjSize);

            if(NewEventSavrFlashAddr<8000-1)
            {
                     NewEventSavrFlashAddr++;
            }
            else
            {
                     NewEventSavrFlashAddr = 0;
            }
}

      int main(void)
      {
            _EVENT_LOG_LIST_obj data;
            data.error_bus = 1;
            data.error_day = 2;
            data.error_hour = 3;
            data.error_min = 4;
            data.error_month = 5;
            data.error_sec = 6;
            data.error_term_id = 7;
            data.error_term_type = 8;
            data.error_year = 9;
            data.light_type = 10;
            while(1)
            {
                     record_new_event(&data);
                     delay_ms(50);
            }
      }

flash驱动来自精英版

453044814@qq.co · 发表于 2017-1-13 10:05:46

修改
#define ErrorObjSize 8
ok

453044814@qq.co · 发表于 2017-1-13 10:34:05

没问题，我自己晕了

453044814@qq.co · 发表于 2017-1-13 11:01:18

还是有问题

453044814@qq.co · 发表于 2017-1-13 11:06:21

#define ErrorObjSize                      7
#define FLASH_HISTORICAL_EVENT_START_ADDR       0X08050000
void record_new_event(_EVENT_LOG_LIST_obj* data)
{
static uint16_t j=0;
uint8_t i;
uint16_t buffer[ErrorObjSize];
uint32_t addr32;
buffer[0] = 7;
buffer[1] = 8;
buffer[2] = 9;
buffer[3] = 10;
buffer[4] = 11;
buffer[5] = 12;
buffer[6] = 13;

addr32 = FLASH_HISTORICAL_EVENT_START_ADDR + j*ErrorObjSize*2;
if(j==146)
{
delay_ms(20);
/*
addr = FLASH_HISTORICAL_EVENT_START_ADDR+2044 = 0x08507fc 要跨扇区了
写入buffer = {0x0007,0x0008,0x00009,0x0a,0x0b,0x0c,0x0d}
读出buffer = {0x0001,0x0007,0xffff,0xffff,0xffff,0xffff,0xffff}
*/
}
STMFLASH_Write(addr32,buffer,ErrorObjSize);
j++;

delay_ms(10);
STMFLASH_Read(addr32,buffer,ErrorObjSize);

}
   int main(void)
      {
            _EVENT_LOG_LIST_obj data;
            while(1)
            {
                     record_new_event(&data);
            }
      }

453044814@qq.co · 发表于 2017-1-13 11:17:44

addr32 = FLASH_HISTORICAL_EVENT_START_ADDR + j*ErrorObjSize*2;
if(j==146)
{
delay_ms(20);
/*
addr = FLASH_HISTORICAL_EVENT_START_ADDR+2044 = 0x08507fc 要跨扇区了
写入buffer = {0x0001,0x0007,0x080a,0,0,0,0}
读出buffer = {0x0001,0x0007,0x080a,0xffff,0,0,0}
*/
j++;
}
else
{
STMFLASH_Write(addr32,buffer,ErrorObjSize);
j++;

delay_ms(10);
STMFLASH_Read(addr32,buffer,ErrorObjSize);
}

跳过跨页的那一段，接下的都没有问题
不跳过，以后读出全是ffff
估计是奇数地址的问题

453044814@qq.co · 发表于 2017-1-13 11:30:12

照道理地址*2了应该没有奇地址的。原因抽空在看那看那

正点原子 · 发表于 2017-1-13 21:25:22

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内部flash跨扇区写读问题

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