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TJA1145 High-speed CAN transceiver for partial networking with MPC5748G

Question asked by MIAN AHMED JEHANZEB ANWER NOORPURI on Sep 14, 2017

Dear All,

 I am trying to interface TJA1145 High-speed CAN transceiver for partial networking with MPC5748G. I am facing following issues

  1. TAJ1145 is behaving as on reading Identification register on the Oscilloscope

MPC5748 SPI MOSI Transmit BYTE1 (address of ID reg with RO-1) = 0x7F ------------> TJA1145 SDO Transmit BYTE1 = 0x7F

MPC5748 SPI MOSI Transmit BYTE2 ( Send Clock to read Reg Val) = 0xFF ------------> TJA1145 SDO Transmit BYTE2 = 0x00

  1. Moreover I am using MOC5748 SPI in FIFO mode. But no data is received in the Receive FIFO.
  2.  If anz friend has   code of TAJ1145 configuration  with Microcontroller interfacing, then please provide me

Thanks

Mian Ahmed Jehanzeb Anwer

TU Chemnitz

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