I suspect there is a misprint in the doxygen of IWR6843 SDK 3.2.0.4:
My web browser URL is:
packages/ti/control/mmwavelink/docs/doxygen/html/structrl_frame_cfg__t.html#a1fa2579eb89ba6a6732a73a45ad5b474
In data structures:
rlFrameCfg_t Struct Reference
| rlUInt16_t | numLoops |
| Number of times to repeat from chirpStartIdx to chirpStartIdx in each frame, valid range = 1 to 255 |
chirpStartIdx should most likely be chirpEndIdx
