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CC2650STK: Can't use UART on CC2650 STK

Part Number: CC2650STK
Other Parts Discussed in Thread: CC2650


I am using CCS 9.1, TI-RTOS for C13XX and C26XX vers on Linux Mint 18 and the XDS110 Debug Probe

I installed the example uartecho_CC2650STK_TI and configured a terminal program with the settings specified in the

    Baud-rate:    9600
    Data bits:       8
    Stop bits:       1
    Parity:       None
    Flow Control: None

But there is no communication in either sens. I noticed that uart of CC2650 receives garbage, the call to

UART_read(uart, &input, 1);

doesn't block as it should in absense of inbound trafic.

Does the JTAG mode supports access to the uart on the chip ?

With other microcontrollers I have used SWD Mode rather than JTAG mode but the former doesn't work with the CC2650STK .

Can I connect to the onboard uart with the XDS110 ?