3 ms·
That's the cost one has to pay for using antiquated slow hardware which does not even have DMA.
by sannee 11y ago
That's the cost one has to pay for using antiquated slow hardware which does not even have DMA.
- tonyarkles 11y agoDMA is nice, no doubt, but it's not the ultimate solution to every problem. Have a look at my problem above... DMA wouldn't have helped. In fact, I'd probably have ended up starting with a DMA implementation, reverted back to a non-DMA implementation while debugging, and then would have stuck a bunch of nops into the DMA interrupt to make sure that I waited enough cycles before de-asserting CS.