使用eeprom写入数据EEPROM时出错

我使用STM8L，但它可能是等效的。
 
 
我必须在写入之前解锁eeprom，但是在8L写入受保护的内存时不要挂起CPU。



以下为原文





I work with STM8L, but it is probably equivalent.


I have to unlock the eeprom before writing it, but on 8L writing to a protected memory don't hang the CPU.

布莱恩，
 
 程序挂起的指令等待EEPROM编程结束。
 正如Argail告诉你的那样，如果你没有通过在FLASH_DUKR中写入序列：0xAE 0x56来解锁EEPROM，那么你的代码将永远等待。
 问候，
 EtaPhi



以下为原文





Bryan,

the instruction where your program hangs waits for the EEPROM programming end.
As Argail told you, if you don't unlock EEPROM by writing the sequence: 0xAE 0x56 in FLASH_DUKR, your code will wait forever.
Regards,
EtaPhi

所有，
 
 
 谢谢您的帮助。事实证明我做错了一些事情。首先，我在调用_fctcpy时输入了一个拼写错误，因此我的flash编程例程没有加载到RAM中。然后，如上所述，我也忘了解锁EEPROM。此外，我正在使用一个工作在16 MHz以上的外部振荡器，所以我设置OPT7以添加数据表建议的等待状态。
 
 我还发现在使用调试器加载程序时数据EEPROM会被清除。有道理，但我认为调试器只是重写程序闪存，而不是数据EEPROM。只需在不停止/启动调试器的情况下重新启动调试器，就不会重写数据EEPROM。一旦我完成了所有这一切，我就能够写入数据EEPROM并在电源循环时看到我的数据。
 
 谢谢，
 布赖恩



以下为原文





All,


Thanks for the help.  Turns out I was doing a few things wrong.  First, I had a typo in my call to _fctcpy, so the flash programming routines of mine were not loaded into RAM.  Then, as mentioned, I had also forgotten to unlock EEPROM.  Also, I am using an external osciallator that operates above 16 MHz, so I set OPT7 to add a wait state as suggested by the datasheet.

I also discovered that the data EEPROM gets cleared upon loading the program with the debugger.  Makes sense, but I thought the debugger just re-wrote program flash, not the data EEPROM.  Just restarting the debugger without stopping/starting the debugger does not re-write data EEPROM.  Once I got all that straight I was able to write to data EEPROM and see my data still there upon a power cycle.

Thanks,
Bryan