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Altera_Forum
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14 years ago

create software for Altere PIO 's

this is my code below, its self explanatory, i am unable to get the IOWR_ALTERA_AVALON_PIO_SET_BITS(base) to work as the output is confirming it. My PIO is set to 1 # define ALT_MODULE_CLASS_...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Hmmm... IMHO any code that uses any of the IOWR* defines is inherently unreadable and difficult to maintain.

In this case you are also forcing 3 io/memory cycles when (probably) 2 are needed.

I'd also tend to recommend using 'write 1 to set' and 'write 1 to clear' registers for general pio in order to remove the need for read-modify-write cycles on shared resources (save the need to disable interrupts).