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CC2642R: How to change the CC2642 ble5's DTM program

Part Number: CC2642R

Hi team,

Here's an issue from the customer may need your help:

Now simplelink_cc13x2_26x2_sdk_5_10_00_48 package SDK  is used as Code Base, H/W: EVB (CC2642R1/CC2652R1).

The customer intends to output the register value to the screen using the UART by using the internal variable load capacitors (cap-array) capacitance value. The following tests were performed to verify:

Add a string of UART output to the screen. Add a UART to the beginning of the DTM main task to print, but use the logic analyzer to see that there is no UART signal output at all. Debug to verify that the program is running. But this API doesn't seem to work. The DTM program seems cannot be modified directly, can it only be adjusted via config file? Or is the UART set up to open? Or is there other limitations in the DTM program that prevent users from making changes directly?

Could you help check this case? Thanks.

Best Regards,

Cherry