STM32F100 Flash write fails

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akshada

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I an trying to write into flash. i can write a few bytes but after that the writing fails.what should i do in that case?should i retry writing for that particular address for say 3 times. for rewriting i will have to erase and than try rewriting to the same address again. but i am not sure whether i'll be able to erase that particular address in between writing. please suggest.


thanks in advance..
 

but i need it for flash. while writing in a page,if at any point it failed to write can i erase that particular address and retry again?

thanks for the reply
 

Your question seem related to writing internal flash and I link to the related ST application note.
If have you some issue to writing into a external flash memory, please give more info to get some help.
 

yes it is related to internal flash
 

Well,
If for any reason you fail to write you can:
Reading in your target address: if have all bit=1 then you can retry to write.
If some bit is already cleared , you must before erase the entire page.
 

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