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L6470H disc board problem

Question asked by shen.cheng on Sep 6, 2015
hi, i bought a 6470h disc board and found a problem that spi communication always fail, whatever spi command send from mcu the driver always back 0xff. and i checked spi signal with oscilloscope, the only thing i can say is mcu is fine. So is my driver IC fail or something wrong make this situation? need some advise.