On Friday 31 March 2006 2:11 pm, Kumar Gala wrote:
> So I give a new question. Any issue with adding a rx & tx completion
> to spi_bitbang?
What do you mean?
> In my HW I get an interrupt when the transmitter is
> done transmitting and one when the receiver is done receiving. I
> need some way to synchronize and wait for both events to occur before
> continuing on in txrx_word().
You can't return from txrx_word() before the RX event, since the
return value is the word that was shifted in. So if you use IRQs
to synchronize there (rather than polling a status register), all
that would be internal to your code.
- Dave
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