Issue on Antenna Switch

Alone173

Other Parts Discussed in Thread: CC3200, CC3100

Hello everybody.
I have just build a custom board with CC3200 MCU, but i have an issue when using ATNSEL1/2 pins.
In my board, i used RF switch for selection between two Antenna.
Pls see on my details circuit:

I dont know that need CONTROL ANTSELx pins via Firmware, or it will automatic control via CC3200 MCU.
Pls help me understand this point.
Thanks.

over 7 years ago

0 Hnz over 7 years ago

Guru 39650 points

Hi,

Please see antenna_selection ( processors.wiki.ti.com/.../CC3200_Antenna_Selection_Application ) example in SDK.

Jan

0 Josh Wyatt over 7 years ago in reply to Hnz

TI__Guru* 91206 points

also, if you want to - you could spin the filer around in your schematic go RF_BG goes to IN terminal and OUT goes to DC block cap going to the switch. \

0 Alone173 over 7 years ago in reply to Josh Wyatt

Expert 1325 points

Hello Josh
Thanks for your support.
But i want to know can use two ANTSELx pins to control RF switch or must use another GPIO pins.
Thanks.

0 Alone173 over 7 years ago in reply to Hnz

Expert 1325 points

Hello Jan
Thanks for your suggest, i will check .
Thanks

0 Josh Wyatt over 7 years ago in reply to Alone173

TI__Guru* 91206 points

if you use this example, processors.wiki.ti.com/.../CC3200_Antenna_Selection_Application, as Jan pointed out, you should be able to see it work.

0 Alone173 over 7 years ago in reply to Josh Wyatt

Expert 1325 points

Hello Josh
Thanks for your figure out this point.
i checked and change on FW of CC3200 ( example in getting start with AP mode)
The program can run and stop at wating device connect .
Can have a solution for checking RF signal in this case?
Im doing with CC3200 custom board.
THanks

0 Josh Wyatt over 7 years ago in reply to Alone173

TI__Guru* 91206 points

Dear Alone173 -

in this wiki we have the Radio Tool for the CC3200 & CC3100 ==>

you can download the tool, under the Releases section

after install, on default path, you will then find application binary to load into the CC3200.

C:\ti\CC3100_CC3200_RadioTool_1.2\CC3200BoardApplication_Binary

service pack will still be coming from ==> C:\ti\CC3100_CC3200_ServicePack_1.0.1.13-2.11.0.1

Then you can run the GUI, connect to the board and run RX and TX tests

Hope that helps you out.

Wi-Fi

Wi-Fi forum

Issue on Antenna Switch