zephyr/samples/subsys/tracing
Kumar Gala ad5966a432 samples: move to using CONFIG_MP_MAX_NUM_CPUS=1
For samples that set CONFIG_MP_NUM_CPUS=1, switch to using
CONFIG_MP_MAX_NUM_CPUS=1 instead as we work to phase out
CONFIG_MP_NUM_CPUS.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2022-10-20 22:04:10 +09:00
..
boards
src includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h> 2022-09-05 16:31:47 +02:00
CMakeLists.txt
README.txt
prj.conf samples: move to using CONFIG_MP_MAX_NUM_CPUS=1 2022-10-20 22:04:10 +09:00
prj_native_posix.conf
prj_native_posix_ctf.conf
prj_sysview.conf
prj_uart.conf
prj_uart_ctf.conf
prj_usb.conf
prj_usb_ctf.conf
prj_user.conf
sample.yaml samples: Add name "sample" in the some samples modules 2022-08-29 07:30:10 -04:00

README.txt

Title: Send Tracing Formatted Packet To The Host With Supported Backends

Description:

This application can be used to demonstrate the tracing feature. The tracing
formatted packet will be sent to the host with the currently supported tracing
backend under tracing generic infrastructure.

--------------------------------------------------------------------------------

Usage for UART Tracing Backend:

Build a UART-tracing image with:

    cmake -DBOARD=mps2_an521 -DCONF_FILE=prj_uart.conf ..

or:

    cmake -DBOARD=mps2_an521 -DCONF_FILE=prj_uart_ctf.conf ..

NOTE: You may need to set 'zephyr,tracing-uart' property under the chosen
node in your devicetree.  See boards/mps2_an521.overlay for an example.

After the application has run for a while, check the trace output file.

--------------------------------------------------------------------------------

Usage for USB Tracing Backend

Build a USB-tracing image with:

    cmake -DBOARD=sam_e70_xplained -DCONF_FILE=prj_usb.conf ..

or:

    cmake -DBOARD=sam_e70_xplained -DCONF_FILE=prj_usb_ctf.conf ..

After the serial console has stable output like this:

    threadA: Hello World!
    threadB: Hello World!
    threadA: Hello World!
    threadB: Hello World!

connect the board's USB port to the host device and
run the trace_capture_usb.py script on the host:

    sudo python3 trace_capture_usb.py -v 0x2FE9 -p 0x100 -o channel0_0

The VID and PID of USB device can be configured, just adjusting it accordingly.

--------------------------------------------------------------------------------

Usage for POSIX Tracing Backend

Build a POSIX-tracing image with:

    cmake -DBOARD=native_posix -DCONF_FILE=prj_native_posix.conf ..

or:

    cmake -DBOARD=native_posix -DCONF_FILE=prj_native_posix_ctf.conf ..

After the application has run for a while, check the trace output file.