Hello,
I spent some time fiddling with spi devices:
. MAX186 12 bit ADC
. Hope RFM12
I split out a bit-bang version (not that you ever need this
on an AVR :-) and a version using the spi interface. Please
find attached two examples. Tested with amforth 3.4.
Since for every byte there is a response byte, sending
several bytes in a row might be a little messy. Also the
docs say, that between bytes releasing and requesting "slave
select" will synchronize the slave again. It did work
without that for me _so_far_ ... but you never know. The bit
bang version seems to slow to handle incoming rfm data. At
least I did not yet get it to work properly.
Matthias, feel free to add the relevant sections to the lib
directory of amforth.
Cheers,
Erich
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