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Controlling L6470 Using SPI

Question asked by tang.wilson on Nov 9, 2014
Latest reply on Nov 17, 2014 by Enrico Poli
Hello, I'm having a lot of trouble trying to simply talk to the L6470 using SPI. When I send any byte whether it be a valid command or not, the L6470 simply sends the command back on the next SPI transfer. How is this possible?

I've checked the 3.3V reg (not used in my design) and it outputs correct voltage, though the OSCOUT (not used) pin has an odd clock signal on it. The OSCOUT signal is oscillating, but it is high for most of each clock period and dips low briefly before rising back to high again.

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