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Original question:

J784S4XEVM: Trace for C7x

J784S4XEVM: Trace Port for TDA4VH

Porselvan V
Prodigy 60 points
Part Number: J784S4XEVM
Other Parts Discussed in Thread: TDA4VH

Tool/software:

Hi ,

We are planning to procure J784S4XG01EVM board, and we will be working on porting, developing kernels on vxworks.
So, we need to debug, profile kernel level logs, is this board have dedicated trace port?
I see it has JTAG interface, but does it have trace port as well. 
We are planning to use Lauterbach debugger to debug and trace the logs, what we got info from them is, unless the board has dedicated trace port it is not possible to profile kernel level data.

Request your support in knowing whether this hardware has trace port or not.

  • 0
    TI__Mastermind 23715 points

    Hello,

    Yes the J784S4XG01EVM has both dedicated HW-JTAG and HW-TRACE ports on its MIPI-60 pin.  If you use a Lauterbach LA-3818 adaptor (ARM20+2xMictor32)-to->MIPI-60 you can do full JTAG debug and HW trace (processor trace and system tracers). The J784S4XG01EVM also has multiple UART ports which you can use for additional-traditional logging.  Lauterbach/TRACE32 does also support VxWorks awareness as such you should be able to have full tool help for your RTOS bring up.

    For offchip trace I use the script J784S4_offchip_trace.cmm after a connection to enable the external trace over mipi-60.  Usually that is with an LA-7992.

    Attached a a current set of scripts for bare metal and RTOS/HLOS.  You would have to add an the vxworks awarness but that is straight forward.  The password for the zip is J7AHP.

    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/3051.cmm_2D00_tda4vh_5F00_j784s4.7z

    Regards,
    Richard W.