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Original question:

LAUNCHXL-CC2640R2: UART to BLE bridge

LAUNCHXL-CC2640R2: UART to BLE bridge

Jackie Chau
Intellectual 285 points
Part Number: LAUNCHXL-CC2640R2


Thanks YIKai Chen for sharing the sample codes of simple_serial_socket_client and simple_serial_socket_server. It's great for me to test data exchange from 2 LAUNCHXL CC2640R2 by XDS110 Class Application/User UART. However, when I want to connect a USB-to-COM converter(TX, RX, GND) to DIO2, DIO3 and GND of LAUNCHXL, and take away the jumpers of WMCU_RXD & WMCU_TXD from header P4, it's unable to send or receive data. Please kindly advise.

  • 0
    TI__Guru** 101460 points

    Hi,

    The first element you should verify is if Tx and Rx lines are properly connected (and not exchanged).

    Then you should verify if the UART signals are identical when you use the XDS110 and when you use the USB-to-COM. You should verify the baudrate, the parity, the stop bits, etc.

    Regards,