I was asked to design a
cc2530 with cc2591 front-end PA-LNA system. Meanwhile, I need to use P0.2-P0.5
as a (UART 0, alt 2) debug interface, as I need to connect P1.4-P1.7 (UART 1,
alt 2) with hardware flow control to another device. However, it seems to be
P1.4 is captured by the CC2591 EN pin, and I can't change the code to let it
connect to any other pins. Is there any solution for the P1.4 pin
conflict? I'm looking forward for your replies.
I am running into the same problem.
Why can't you simply move the CC2590 enable signal to another pin on CC2530?
--PS. If I answered your question, please hit Verify Answer !
Because CC2530 CC2591 reference design & the design note "Using CC2591 Front End with CC2530" suggest that :)
You are right, I plan to use another pin.
You should be able to map PA_LNA I/O between P1_0 to P1_5. Take a look in macRadioTurnOnPower() function in
Zstack. If you configure for exemple:
OBSSEL4 = OBSSEL_OBS_CTRL1; as
OBSSEL3 = OBSSEL_OBS_CTRL1;
You should have the correct driving I/O on P1_3, instead of P1_4.
It looks better than driving itself an I/O. Let me know.
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