Hi Michael !
Agreed, manipulating /SS manually is a trick that always works. But the nice feature of the SPI logic in an AVR is that we can let it take care of the /SS-pin automatically.
If I need to [b:ab2e4a8624]read [/b:ab2e4a8624]from SPI while spitting out 4 bytes, I see no other option than manually manipulating /SS. Because when I use multiple Spimove-statements, /SS goes high in between those statements.
It's a bit academic, but I think I would use assembler if things really have to run fast or are getting complicated ...
Reason for me to dig a bit deeper into SPI in all its flavours is that Evert Dekker mentions in AN #151 that HW SPI must be used as soft SPI seems to fail in that application (nRF24L01).
And I want to know why :lol:
Cheers
Nard
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