orbcode-scripts

How-to-trace using SWO and ORBTrace mini

Compile and upload (any) sketch for Arduino Portenta H7 / M7 core:

git clone https://github.com/arduino/arduino-examples && cd arduino-examples
arduino-cli compile -b arduino:mbed_portenta:envie_m7 -v examples/01.Basics/Blink -u -p /dev/ttyACM1

Note down the path to where the ELF-file is stored and edit .gdbinit accordingly.

Start GDB using .gdbinit contained in this repository:

ln -s .gdbinit-swo .gdbinit
arm-none-eabi-gdb -iex 'add-auto-load-safe-path .'

Start orbuculum:

orbuculum --verbose 3 --monitor 1000

Create a folder for captured SWO trace data and start orbfifo:

cd /tmp
mkdir swo
orbfifo --verbose 3 --basedir swo/

Now you are ready to observe some trace data, i.e.

cat swo/hwevent
2,1,**SLEEP**
2,1,**SLEEP**
2,1,0x08053e48
2,1,**SLEEP**
2,1,**SLEEP**

or even better:

orbtop -e /tmp/arduino/sketches/817DC06D31EFAD33501697C59B5B9880/Blink.ino.elf -l

which results in i.e.

 96.50%    34272 ** Sleeping **
  1.05%      374 HAL_PCD_IRQHandler
  0.23%       83 hal_critical_section_enter
  0.23%       83 core_util_critical_section_enter
  0.19%       70 lp_ticker_read
  0.18%       66 update_present_time
  0.15%       56 hal_critical_section_exit
  0.13%       49 void mbed::internal::do_sleep_operation<mbed::internal::timed_predicate_op
  0.12%       46 core_util_critical_section_exit
  0.10%       36 mbed::internal::timed_predicate_op::wake_condition() const
-----------------
 98.88%    35135 of  35514  Samples

[---H] Interval = 999mS

How-to-trace using TRACECLK / TRACED0 and ORBTrace mini

ln -s .gdbinit-trace .gdbinit
arm-none-eabi-gdb -iex 'add-auto-load-safe-path .'
...
c
Ctrl+C
enableTraceSTM32H747_M7
c
....