Other Parts Discussed in Thread: CC1190, CC1352P, , CC1310
Hi,
I previously asked similar question but have some further ones since the old thread has been locked.
1) how to control high gain mode?
in CC13-90 launchpad, there are 3 pins that control CC1190, LNA_EN, PA_EN, HGM_EN. It seems straightforward to route LNA_EN and PA_EN to relevant signal on RF core, but I don't see a pin that is suitable for HGM_EN in CC13x2. Can we route IOC_PORT_RFC_GPO0 (LNA enable signal on RF core) to both LNA_EN and HGM_EN at the same time?
2) Is it safer to route LNA_EN to IOC_PORT_RFC_GPO3 (TX start signal on RF core)?
In the generated code for CC1352P, there is a comment about IOC_PORT_RFC_GPO3:
// ti_radio_config.c
/* Note: RFC_GPO3 is a work-around because the RFC_GPO1 (PA enable signal) is sometimes not
de-asserted on CC1352 Rev A. */
I assume this also applies to CC1312R. My question is, should we do the same in CC1312R + CC1190? I tried to get some confirmation on this in another thread, but I don't think the discussion is conclusive then. So please help clarify.
Thanks,
ZL
