AWR1843: How do I assign TPCC0 and TPTC0/1?

If you are using the EDMA driver in SDK, in config API there is the eventQueueId setting which is basically the TPTC id so you can set it to 0 or 1 for whatever channel id [0-63] you are configuring, please go through the API documentation. If you are directly programming the EDMA at the register level, you can look at the device TRM for details or refer to what the EDMA driver code is doing when processing the eventQueueId.

More background info on the EDMA3 peripheral can be found here:

http://www.ti.com/lit/ug/sprugs5b/sprugs5b.pdf

Of course for mmWave sensors, the numbers of controllers and channels will be different.