ux_device_class_cdc_acm_read read up arrow key as 0x0D

eclipse-threadx / usbx

Eclipse ThreadX - USBX is a high-performance USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Eclipse ThreadX RTOS

https://github.com/eclipse-threadx/rtos-docs/blob/main/rtos-docs/usbx/index.md

MIT License

148 stars 88 forks source link

ux_device_class_cdc_acm_read read up arrow key as 0x0D #104

Open calism opened 1 year ago

calism commented 1 year ago

Hello All,

I use the function ux_device_class_cdc_acm_read to read the inputs from Terminal (in this case Tera Term).
If I press up arrow key, the function ux_device_class_cdc_acm_read writes into the buffer the value 0x0D which is the Carriage Return.

So, I assume there is an issue the function ux_device_class_cdc_acm_read

xiaocq2001 commented 1 year ago

I don't think so, up arrow key is not interpreted as normal character, it could be sequence of keys. Maybe you can check trace of the USB traffic, I think it gets Carriage Return because host really send it in its key sequence.