Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).
I have the BF537 Stamp board and I need to use the SPI gadget. Using the adsp-spiadc example I have some of what I need. Goals 1) Chip select idles high <= not met 2) Chip select goes low at start of transaction and stays low <= not met 3) Write 3 16 bit words, MSB first <= works except chip select toggles 4) Read 2 16 bit words, MSB first <= not met, read function doesn't even clock (?) 5) Chip select goes high Wandering through the files I have found, there doesn't seem to be much of a description on how to make this happen. I wandered over to docs.blackfin.uclinux.org and there isn't much info there either. An acceptable solution to the chip select is to use a GPIO not related to the SPI gadget. Suggestions on implementing this will be most welcome. Any thoughts or references? Richard