In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote:

Your shiftIn code must act as slave, that is it must receive the clock,
not generate the clock. The clock is generated by the shiftOut.

The SX/B shiftIn is only master. You probably need a VP written in assembly,
but perhaps someone has a SX/B version of a SPI slave.

Go to
[url=http://www.sxlist.com/techref/ubicom/virtperf.htm]http://www.sxlist.com/techref/ubicom/virtperf.htm[/url]
and scroll down to SX to SX spi interface

regards peter

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