Does St Micro have an example of a MultiMaster SSP/SPI bus with collision

rgreenthal · ‎2008-06-09

Posted on June 09, 2008 at 16:08

rgreenthal · ‎2011-05-17

Posted on May 17, 2011 at 09:53

I have seen SiLabs have this, but they have special Hardware.

Can the ST Micro STR912? Maybe if I monitor the clock with a GPIO pin for collision detection, but I have no spare GPIO's at this time.

I have One Master SPI now with MANY on the bus, too many for Chip selects.

I send an address to the other STR912 to go off & do something.

Don't want to poll to see if that STR912 is done. I think I will have too much latency. I have 10,000+'s of tests & some are now taking 7 sec to several minutes if we poll. So I need Speed, speed, speed.

Thanks,

Ralph G.