liuxiaoyun1210 发表于 2012-7-19 10:55:04

关于STM8S中FLASH块擦除和块写怎么不行呀！【悬赏问答】

在做IAP升级中，用IAR编译环境，对FLASH只能是字节编程，对块擦和块写一操作就死循环了，我们的配置如下：
  //Unlock PROG memory
  FLASH->PUKR = 0x56;
  FLASH->PUKR = 0xAE;
然后用STM8S的库来块擦和块写就不行；
IN_RAM(void FLASH_EraseBlock(uint16_t BlockNum, FLASH_MemType_TypeDef FLASH_MemType))
{
……
*pwFlash = (uint32_t)0;//调试跟踪就一直在那里循环
……
}
IN_RAM(void FLASH_ProgramBlock(uint16_t BlockNum, FLASH_MemType_TypeDef FLASH_MemType,
                        FLASH_ProgramMode_TypeDef FLASH_ProgMode, uint8_t *Buffer))
{
……
    for (Count = 0; Count < FLASH_BLOCK_SIZE; Count++)//调试跟踪就一直在那里循环,而且Count的值不变
    {
#if defined (STM8S208) || defined(STM8S207) || defined(STM8S105) || defined (STM8AF62Ax) ||\
    defined (STM8AF52Ax) || defined (STM8AF626x)
  *((PointerAttr uint8_t*) (uint16_t)startaddress + Count) = ((uint8_t)(Buffer));
#elif defined (STM8S103) || defined (STM8S903)
  *((PointerAttr uint8_t*) (uint16_t)startaddress + Count) = ((uint8_t)(Buffer));
#endif
    }
……
}
高手指点下

yjwpm 发表于 2012-7-19 11:25:37

RE:关于STM8S中FLASH块擦除和块写怎么不行呀！

ST官方不是提供了例程和应用手册了吗，你可以好好的看一下官方的程序。。

liuxiaoyun1210 发表于 2012-9-6 11:50:36

回复:关于STM8S中FLASH块擦除和块写怎么不行呀！【悬赏问答】

回复第 2 楼 于2012-07-19 11:25:37发表:
ST官方不是提供了例程和应用手册了吗，你可以好好的看一下官方的程序。。 

就是用官方的库来操作。

alexant 发表于 2012-9-8 14:51:33

RE:关于STM8S中FLASH块擦除和块写怎么不行呀！【悬赏问答】

要在stm8l15x.h中使能RAM_EXECUTION宏，见stm8l15x_flash.c中的文档：
- For IAR Compiler:
    1- Use the __ramfunc keyword in the function declaration to specify that it
    can be executed from RAM.
    This is done within the stm8l15x_flash.c file, and it's conditioned by
    RAM_EXECUTION definition.
    2- Uncomment the "#define RAM_EXECUTION(1)" line in the stm8l15x.h file, or
   define it in IAR compiler preprocessor to enable the access for the
   __ramfunc functions.

liuxiaoyun1210 发表于 2012-9-14 13:43:58

回复:关于STM8S中FLASH块擦除和块写怎么不行呀！【悬赏问答】

回复第 4 楼 于2012-09-08 14:51:33发表:
要在stm8l15x.h中使能RAM_EXECUTION宏，见stm8l15x_flash.c中的文档：
- For IAR Compiler:
1- Use the __ramfunc keyword in the function declaration to specify that it
can be executed from RAM.
This is done within the stm8l15x_flash.c file, and it's conditioned by
RAM_EXECUTION definition.
2- Uncomment the "#define RAM_EXECUTION (1)" line in the stm8l15x.h file, or
define it in IAR compiler preprocessor to enable the access for the
__ramfunc functions. 

具体怎么操作？
 
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