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ADuC7026 SPI problem

Question asked by roadrunner Employee on Dec 9, 2014
Latest reply on Dec 10, 2014 by ABuda


I cannot enable the SPI MISO line on my ADuC7026.  The SPI is configured in slave mode.  Using an oscilloscope, I see ~CS go low and the master start clocking SCLK.  I can successfully receive bytes on MOSI.  However, it appears that MISO is permanently stuck in high-impedance mode.  I've tried many combinations of settings in the SPICON register, but nothing happens on MISO.  Any suggestions?