STM32F303 UART Idle Line Detection Problem

[Maximilian Pohl]

Hi,

i try to implement a idle line detection for my uart interface. I use this tutorial here: https://controllerstech.blogspot.com/2018/05/uart-using-dma-and-idle-line-detection.html

It is working on a STM32F103 (running example of the tutorial).

So now i want to transfer it to my STM32F303, I did exacly the same and dont get errors from the compiler. But it is not working.

The uart interrupt is triggered all the time, an no data a recieved.

In the attachement is my whole TrueStudio Project.

Does anyone implemented Idle Line Detection on a STM32F303?

Thank you so much for your help.

Max

[Ozone]

> The uart interrupt is triggered all the time, an no data a recieved.

Isn't that suspicious ?

With the debugger, check for error conditions triggering the interrupt.

In difference to RxNE/TxE, those error interrupt flags must be cleared manually.

[waclawek.jan]

+1 to what Ozone said above, and

> no data a recieved

How do you know?

JW

[Maximilian Pohl]

The RX buffer ist empty and i didnt send any data via my terminal program.

I checked a few error registers but all seems to be ok...