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Altera_Forum's avatar
Altera_Forum
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18 years ago

help:uart error

hi, i used the uart correctly before, but when i added a function in the uart interrupt function, it can receive the data only once, receiveed another data, the program run out. why?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

It seems likely that during flash write operations, interrupts could be disabled for relatively long periods (I'm just guessing, I haven't checked). You could therefore get uart buffer overrun errors and lose data.

Without a lot more information about your code, it's hard to make any useful suggestions.