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> I've been playing around with a crashy program as of late, and I was
> curious. If I have a series of cputs(), each of which is immediately
> followed by an lcd_refresh(), is it possible that the program crashes
> after a pair of those, yet the string in cputs() never gets displayed? For
> example:
>
> cputs("test"); <-- will this always get displayed?
> lcd_refresh();
> Crash();
The lcd_refresh() copies all data into the LCD controller chip, so the data
is definitely there. But this data takes some time to be displayed on the
actual LCD: The controller needs to drive the lines to the LCD, and the
LCD itself has some latency to show the data. If the program crashes
during this time, you will not see the output.
Eddie C. Dost
ecd@skynet.be
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