cc2430flash 读内容
请问下如何读flash的内容呢?我可以用DMA方式给flash写内容,但是我想读出写入的内容,查了下手册,没有相关的寄存器,不知道如何操作。请指导,谢谢!
unsigned char ReadFlash(unsigned int addr)
{
return (*(unsigned char *)addr);
}
z-stack里有对FLASH进行操作的文件,先下载安装z-stack,在安装目录下搜索Hal_flash.c,可移植里面的代码实现你的功能
void HalFlashRead(uint8 pg, uint16 offset, uint8 *buf, uint16 cnt)
{
// Calculate the offset into the containing flash bank as it gets mapped into XDATA.
uint8 *pData = (uint8 *)(offset + HAL_FLASH_PAGE_MAP) +
((pg % HAL_FLASH_PAGE_PER_BANK) * HAL_FLASH_PAGE_SIZE);
uint8 memctr = MEMCTR; // Save to restore.
#if (!defined HAL_OAD_BOOT_CODE) && (!defined HAL_OTA_BOOT_CODE)
halIntState_t is;
#endif
pg /= HAL_FLASH_PAGE_PER_BANK; // Calculate the flash bank from the flash page.
#if (!defined HAL_OAD_BOOT_CODE) && (!defined HAL_OTA_BOOT_CODE)
HAL_ENTER_CRITICAL_SECTION(is);
#endif
// Calculate and map the containing flash bank into XDATA.
MEMCTR = (MEMCTR & 0xF8) | pg;
while (cnt--)
{
*buf++ = *pData++;
}
MEMCTR = memctr;
#if (!defined HAL_OAD_BOOT_CODE) && (!defined HAL_OTA_BOOT_CODE)
HAL_EXIT_CRITICAL_SECTION(is);
#endif
}
如果我不想用DMA的方式来读写呢?我想知道怎么实现,谢谢