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KM34Z50M connectivity problem

Question asked by Harish Venkatachalam on Jul 2, 2015
Latest reply on Jul 8, 2015 by Harish Venkatachalam



     I am trying to connect the Freescale KM34Z50M to Cirrus Logic CDB5480 board. The CDB senses temperature and the KM controls a relay based on the temperature readings. The CDB senses the room temperature properly, but when I connect the KM TWR to it, the readings somehow get corrupted. I connect the pins 17,18,19,20 of SPI to the RX,TX,CLK and CS of the CDB respectively. Can anyone explain why this happens?

Thanks in advance.