How to transfer audio file from UART3 TO UART2 in STM32G0B1KET6N with dma or any other method

[waclawek.jan]

It's unusual to have audio data on UART, but regardless, it's just data as any other. So simply receive data from UART3 to a buffer in memory and then transmit to UART2. Use two buffers, swapped alternatively between receiving and transmitting for continuous transfer.

JW

[Tesla DeLorean]

How is the data actually presenting itself?

Are you using some standard protocol for data transfer across serial or network connections?

Something that's inherently packetize like MP3?​

Why is this more than a buffering and data shovelling exercise in the simplest case?​

How are you failing at it currently?​