Other Parts Discussed in Thread: IWR6843, IWR6843ISK
Hello,
We're studying a solution that integrates the chip IWR6843AOP in a PCB. While studying the HW design we came to a doubt.
When looking at the laboratory project "high_accuracy_68xx_mss" the pinmux file that it includes and uses is taken from the following route on SDK:
...\mmwave_sdk_03_04_00_03\packages\ti\drivers\pinmux\include
file: pinmux_xwr68xx.h
In mss_main.c of the code of that referred project (high_accuracy_68xx_mss) it assigns pin N5 and N4 to MSS_UARTA_TX and MSS_UARTA_RX. This code works on IWR6843AOP EVM.
Nevertheless, the IWR6843AOP doesn't have pin N5 and N4, nor have them assigned as possibilities for MSS_UART multiplexing. (Documentation consulted: device datasheet). We've investigated and found that those are the pin used in the IWR6843 chip antenna on pcb (not AOP).
We wanted to know: is there something we're missing? To which pin should we route our UART signals?
Best regards,
Julia Sánchez.
