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Arm Mbed OS is a platform operating system designed for the internet of things
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USB Device support broken for K64F #4250

Closed screamerbg closed 6 years ago

screamerbg commented 7 years ago

Description

Bug

Target K64F

Toolchain: ARM

Toolchain version: 5.06

mbed-cli version: 1.1.1

meed-os sha: mbed-os-5.4.4 release

DAPLink version:

Expected behavior Trying USBMouse HelloWorld example from the mbed Developer Site, where mbed library is replaced by mbed-os. For STM32 and Nuvoton boards the steps to reproduce below work just fine both with mbed Classic library (rev 140) and mbed-os (5.4.4).

Actual behavior Example program compiles fine but getting USB Device not recognized on Windows 7. Having 2x K64F therefore is highly unlikely tobe HW bug.

Steps to reproduce

  1. Import USBMouse_HelloWorld https://developer.mbed.org/users/samux/code/USBMouse_HelloWorld/ (code dates back to 2013!)
  2. Remove USBDevice library
  3. Add/clone my fork at https://developer.mbed.org/users/screamer/code/USBDevice/ and switch to branch stm32-support, which is identical to mbed-os/features/unsupported/USBDevice
  4. Update mbed library or replace with mbed-os
  5. Compile in the mbed Online IDE or mbed compile -t ARM -m NUCLEO_F429ZI
  6. Flash the board and then change USB connection from STLink to USB Device port
0xc0170 commented 7 years ago

cc @mmahadevan108

mmahadevan108 commented 7 years ago

I have noticed a USB issue when using ARM compiler. Its works with GCC, can you please try and confirm.

screamerbg commented 7 years ago

@mmahadevan108 Most of the USB Device device users are using the mbed Online Compiler, which at its very heart is ARM Compiler. Could you please check with. ARMCC?

ashok-rao commented 7 years ago

Hi @mmahadevan108 , I can confirm that issue is reproducible with both GCC and ARMCC. On Win10, 64-bit, Enterprise edition, I'm facing the following with K64F:

usb_device_k64f

And device manager reports this: usb_device_k64f_devmgr

ashok-rao commented 7 years ago

Update on the above; Issue also observed with FRDM-K22F (USB device not recognized, same as for K64F) & FRDM-KL46Z (Board not even powering up from USB OTG port).

RdaZhongyao commented 7 years ago

@screamerbg , I met the same problem while using USBDevice/USBMSD + mbed-5.4.5 release, with K64F board and ARMCC compiler.

After tacking the code, I believe that malloc is called in usbisr raises this bug. See file : https://github.com/ARMmbed/mbed-os/blob/2e2fe377b3abc2620682dd7a0a98b9a32a5b2c87/features/unsupported/USBDevice/USBDevice/USBHAL_KL25Z.cpp where we can find : USBHAL::usbisr -> USBHAL::realiseEndpoint -> malloc

Hope that helps.

mmahadevan108 commented 7 years ago

@RdaZhongyao Thanks.

maclobdell commented 7 years ago

@screamerbg does the fix satisfy this issue? Okay to close?