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我用的是STM8L152R8 ..
我测试闪存编程......但是,现在存在一些问题...... #pragma location ='FLASH_CODE' void Mem_ProgramBlock(u16 BlockNum,const u8 * Buffer) { u16计数= 0; u32 StartAddress = 0; / *设置起始地址,指的是mem_type * / StartAddress = FLASH_PROGRAM_START_PHYSICAL_ADDRESS; / *指向第一个块地址* / StartAddress = StartAddress +((u32)BlockNum * FLASH_BLOCK_SIZE); / *标准编程模式* / FLASH-&gt; CR2 | =(u8)0x01; / *将数据字节从RAM复制到FLASH存储器* / for(Count = 0; Count&lt; FLASH_BLOCK_SIZE; Count ++) { }} 我使用内存....我在此函数之前解锁cpu ....如下所示 FLASH-> CR1 = 0; //标准编程时间(EEPM,WAITM,IE Clear) FLASH-&gt; PUKR = FLASH_RASS_KEY1; //解锁Flash数据 FLASH-&gt; PUKR = FLASH_RASS_KEY2; while((FLASH-> IAPSR&amp; FLASH_IAPSR_PUL)== 0);我没有发现一些bug ...... 始终CPU在闪存编程功能中停止... 请帮帮我.. 以上来自于谷歌翻译 以下为原文 I use STM8L152R8.. I test flash programming... But, now some problem exists... #pragma location = 'FLASH_CODE' void Mem_ProgramBlock(u16 BlockNum, const u8 *Buffer) { u16 Count = 0; u32 StartAddress = 0;/* Set Start address wich refers to mem_type */ StartAddress = FLASH_PROGRAM_START_PHYSICAL_ADDRESS; /* Point to the first block address */ StartAddress = StartAddress + ((u32)BlockNum * FLASH_BLOCK_SIZE);/* Standard programming mode */ FLASH->CR2 |= (u8)0x01; /* Copy data bytes from RAM to FLASH memory */ for (Count = 0; Count < FLASH_BLOCK_SIZE; Count++) { }} I use memory.... I unlock cpu before this function.... as below FLASH->CR1 = 0; // Standard programming Time (EEPM, WAITM, IE Clear) FLASH->PUKR = FLASH_RASS_KEY1; // Unlock Flash Data FLASH->PUKR = FLASH_RASS_KEY2; while ((FLASH->IAPSR & FLASH_IAPSR_PUL) == 0); I did not find out some bug...... Always CPU halted in flash programming functioin... Please help me.. |
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2个回答
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编程时不能使用闪存。
在字节和字编程情况下,cpu将一直等到闪存准备就绪,当操作完成时,才能继续。 在块编程中,您仍需要在闪存仍处于忙碌状态时提供数据。 这意味着必须从RAM执行复制循环。 我建议你看看 http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm8-embedded-software/stsw-stm8016.html 实施为参考。解压缩后,目录中有一个示例 以上来自于谷歌翻译 以下为原文 The Flash memory cannot be used when programming. In byte and word programming cases, the cpu will wait until the flash is ready again, when the operation is done, to continue. In block programming, you still need to feed data while the flash memory is still busy. This means the copy loop must be executed from RAM. I recommend you look at the http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm8-embedded-software/stsw-stm8016.html implementation as reference. Once unzipped, there is an example in the directory |
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这清楚地描述在
http://www.st.com/resource/en/programming_manual/cd00226555.pdf PM0054第5.2章 以上来自于谷歌翻译 以下为原文 This is clearly described in the http://www.st.com/resource/en/programming_manual/cd00226555.pdf PM0054 chapter 5.2 |
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