search

ARMmbed / mbed-os

Arm Mbed OS is a platform operating system designed for the internet of things
https://mbed.com
Other
4.67k stars 2.98k forks source link

mbed_override_console with USBSerial doesn't work on Portenta H7 #15254

Closed Flydroid closed 2 years ago

Flydroid commented 2 years ago

Description of defect

Using the mbed_override_console to have printf output via USBSerial doesn't work on the Portenta H7. The implementation has followed the [Hitchhiker’s Guide to Printf in Mbed 6](https://forums.mbed.com/t/hitchhikers-guide-to-printf-in-mbed-6/12492)

Update: HellWorld2 is actually beeing sent but as a block of ~85 prints every 45 seconds. USBSerial::sync() didn't do any effect.

Target(s) affected by this defect ?

Portenta H7

Toolchain(s) (name and version) displaying this defect ?

gccarmnoneeabi@1.50401.211104 through platformio

What version of Mbed-os are you using (tag or sha) ?

mbed-os 6.9.0 "bare-metal" profile with "requires": ["bare-metal","drivers-usb","events"],

What version(s) of tools are you using. List all that apply (E.g. mbed-cli)

Platformio platformio-stm32 @ 15.2.0 framework-mbed @ 6.60900.210318 (6.9.0)

How is this defect reproduced ?

https://gist.github.com/Flydroid/85b9868c1226e0ad69572fb2740465c8 Executing the code on the Portenta H7 gives a blinking blue LED and "Hello World" on the COM port. The printf statement "Hello World2" is not visiable on the COM port. USBSerial is started in non-blocking mode.

I have tried any combinatation of mbed_override_console and mbed_target_override_console

0xc0170 commented 2 years ago

cc @facchinm

Flydroid commented 2 years ago

Update: HellWorld2 is actually beeing sent but as a block of ~85 prints every 45 seconds. USBSerial::sync() didn't do any effect.

Flydroid commented 2 years ago

fixed!

Termination charater was missing in printf statement