zephyr

History

Jamie McCrae 11c7371f99 samples: Explicitly disable boot USB device support init at boot Disables having USB enabled for boards that configure USB CDC for console, shell or logging at bootup in applications that enable USB to prevent a conflict arising whereby USB is registered from multiple points and later calls fail. Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>		2023-01-10 12:21:10 +01:00
..
boards	samples: tracing: make example in readme work	2022-07-29 05:57:54 -04:00
src	includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h>	2022-09-05 16:31:47 +02:00
CMakeLists.txt
prj_native_posix_ctf.conf
prj_native_posix.conf
prj_percepio.conf	sample: tracing: add a configuration for percepio	2022-11-04 10:00:48 +01:00
prj_sysview.conf
prj_uart_ctf.conf	tracing: Move to DTS for uart device	2022-07-19 16:00:47 -07:00
prj_uart.conf	tracing: Move to DTS for uart device	2022-07-19 16:00:47 -07:00
prj_usb_ctf.conf	samples: Explicitly disable boot USB device support init at boot	2023-01-10 12:21:10 +01:00
prj_usb.conf	samples: Explicitly disable boot USB device support init at boot	2023-01-10 12:21:10 +01:00
prj_user.conf
prj.conf	samples: move to using CONFIG_MP_MAX_NUM_CPUS=1	2022-10-20 22:04:10 +09:00
README.txt	samples: tracing: make example in readme work	2022-07-29 05:57:54 -04:00
sample.yaml	yamllint: indentation: fix files in samples/	2023-01-04 14:23:53 +01:00

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.