I-Jet Trace not performing ETM trace.

[A Maq]

Posted on July 05, 2018 at 17:13

Hi All,

         On full paid version of IAR Embedded Workbench I am trying to use I-Jet Trace.

After carefully connecting all the wires keeping in mind MIPI20 connections on Nucleo144 STM32F767. I am able to power and program the board using trace but when I enable ETM and then debug things start going wrong.

My Connections configuration is as follows :

PIN Name  ----   Connector Pin ZIO ---  Function

PE2                     D56                            TraceCLK 

PE3                     D60                            TRACED 0

PE4                     D57                             TRACED 1

PE5                     D58                             TRACED 2

PE6                     D59                              TRACED 3

PB3                     D23                              TRACE SWO

PA15                  D20                                JTDI/TDI

                              3,3V                                  Vref

PIN Name  ----   Connector Pin Morpho---  Function

PA14                   15                                     SWCLK

PA13                    13                                    SWDIO

RESET               NRST                               NRST

+5V                     6                                         TPWR

I get the following Debug Log output before starting ETM debug:

Debug log after ETM enabled and Debug started from main:

Please help me with that as we could not figure out so far what is going wrong.

One thing we are not sure why TDO/SWDIO is always high in the debug log and verified in actual.

Keep in mind we have cut the ST-Link part of the Nucleo board.

There is an ARM20 connector in between as well but we have customized board from which we are able to provide all the required connection for the MIPI20 configuration as follows.

#i-jet-trace