Case Number: CS0916937
We are integrating the TCAN4550 into our system. The SPI communications is working. The status reported at the beginning of each access is 0x81. The status register is reporting 0x00400081. Indicating an under-voltage condition on Vsup and UVccout. Both Vsup and VCCout are showing 5V. All attempts to set the mode to "normal" fail and the device remains in "standby". Mode register = 0x08000660. I'm using the TCAN4550 function library with the TCAN4x5x_SPI abstract layer modified to interface with our device (ADuC7124). I'm attaching the part of the schematic that interfaces with the TCAN4550. Could you take a look and see if anything looks out of place.
Thanks,
Dave
This is the correct schematic. The previous schematic showed nWKRQ tied to ground and a WAKE as NC.
