Posted on January 26, 2017 at 10:08Hello there,
I am trying to set up a VCP with USB CDC Device on a Nucleo144 with STM32F429ZI+FreeRTOS simulate UART connection with Host PC.
With CubeMX i could start fast to a simple Transmit to Host PC via CDC_Transmit_FS()-function(without FreeRTOS).
Then Problems started. I couldnt reconnect with Terminal and redo the project. So I started search and found several fixes, like change heap and stack size, vbus disable,change APP_DATA_TX/RX_SIZE. Everything worked again without problems.
Then I stepped back to CubeMX and enabled FreeRTOS and did the same change heap and stack size ...
The Problem: I can connect with the Terminal but not when i try to send with CDC_Transmit_FS()
I gave enought Time for the USB_Device_Init() to finish but the moment I try to transmit, I can no longer connect via Terminal.
So far I have seen the CDC_Standalone from the EVAL-board application and will try to 'translate' it to my device.
But first thing I experienced as I enabled a USART and a Timer for my working Project in CubeMX was that i couldnt even connect via Terminal which worked before.(All necessary changes were made as before)
Disabled both again->generated Code->Could connnect again.
Feels like random things happening generating code with CubeMX. Its really frustrating to get hung up on such problems for days.
I know at the end problems come most time from less knowledge. but where to start searching when things like this happen?
The shorter Question. How can i come from CubeMX generated code with FreeRTOS to Transmit Data to a Terminal?
Did I miss Important settings for this in CubeMX as I enabled USART and another Timer?
