AM4379: UART receive data loss

Please post what Linux version you are using.

linux-4.4.41

Hi,

Have you enabled UART hardware flow control?

     no enabled UART hardware flow control

   serialPort1->setBaudRate(QSerialPort::Baud115200,QSerialPort::AllDirections);

    serialPort1->setDataBits(QSerialPort::Data8);     

    serialPort1->setFlowControl(QSerialPort::NoFlowControl);

    serialPort1->setParity(QSerialPort::NoParity); 

    serialPort1->setStopBits(QSerialPort::OneStop); 

Hi,

Please enable hardware flow control to see if the issue still happens.

Enable hardware flow control. The problem is not solved.

Hi,

Please update to the latest Processor SDK. Kernel v4.4.41 is old and no longer supported on this forum.

If the issue still happens in kernel v4.19.38 in Processor SDK v6.0.0.7, please directly test the UART on Linux console, not using a QT program.