3 Replies Latest reply on Feb 5, 2020 5:15 AM by JayakrishnaT_76

    CX3 Bad JTAG communication SEGGER JLink

    ViDe_4575507

      Hello dear Cypress community,

       

      I'm currently trying to use a JTAG SEGGER J link probe to debug the CX3RDK_OV5640 firmware. I have the known error of bad JTAG communication while passing over the CyU3PDeviceInit(NULL) :

      ERROR: Bad JTAG communication: Write to IR: Expected 0x1, got 0x3 (TAP Command : 15) @ Off 0x1053.

       

      I have found the fix topic and followed the recommended configuration to change the CPU clock :

       

      But unfortunately, even with this correction I'm still getting the same error message in the end :

      ERROR: Bad JTAG communication: Write to IR: Expected 0x1, got 0x3 (TAP Command : 15) @ Off 0x1053.

       

      I tried both CPU clock configurations (0x00080014 and 0x00080015) and it still results with the same error message.
      Am i missing something in the configuration steps ?

       

      Thank you in advance for helping me solving this bug.

       

      Best regards,
      Vivien