PA01 USB Storage hangs the UI

[richardclli]

Is there an existing issue for this problem?

• I have searched the existing issues

What part of EdgeTX is the focus of this bug?

Transmitter firmware

Current Behavior

Copy a large file to the USB SD Storage will hangs the UI and cannot return to normal UI operation after unplug USB.

I tried several cases:

1. Single 30MB file -> hangs
2. Three 10MB files in a single copy operation -> hangs
3. 10MB file one by one each copy unplug and replug the USB -> no hangs

Not sure what cause the hangs.

Expected Behavior

Copy a large file to the USB SD Storage will not hangs the UI and will return to normal UI operation after unplug USB.

Steps To Reproduce

1. Switch on PA01
2. Plugin USB
3. Select USB storage
4. Copy a large file to USB Drive, need > 30MB (SD Chip)
5. Unplug USB
6. UI hangs there

Version

2.11.3

Transmitter

Flysky PA01

Operating System (OS)

No response

OS Version

No response

Anything else?

No response

[richardclli]

I can reproduce the problem myself, but not sure that is the root cause yet.

[richardclli]

Seems not related to disk cache, disabling disk cache did not help to resolve the problem.

[richardclli]

Seems it is related to #6180
I reverted this and the problem gone （updated, problem still there, just need a larger file to trigger)

[gismo2004]

@richardclli do you think this could also be the problem on V16? --> https://discord.com/channels/839849772864503828/839895574244229152/1419954717450178581

Steps to reproduce are the same for me :-)

Edit: reverting #6180 did NOT fix it for me too...

@helloradiosky any ideas?

[helloradiosky]

Hi, gismo2004, I also encountered this problem at the beginning. What I am doing now is to monitor the execution results of stm32_i2c_master_tx and stm32_i2c_master_rx in a task. If it fails, I restart the IIC. I have no problems since then.

[gismo2004]

Hi, gismo2004, I also encountered this problem at the beginning. What I am doing now is to monitor the execution results of stm32_i2c_master_tx and stm32_i2c_master_rx in a task. If it fails, I restart the IIC. I have no problems since then.

Can you please point me to the commit that is doing what you suggested? Or even better, can you PR this here?

[richardclli]

Basically when USB storage is activated, edgetx will be halted to only serve the USB storage. And when USB is unplugged, the edgetx will be resumed with config files reloaded. And almost all the peripherals are triggered by the mixer and the mixer will stop when USB storage is active. So maybe the voltage and current sampling need to be halted as well.