CC3120: Radio tools UART connection failure

I add the logic analyzer records here. the signal is on SPI pins, file name with SPI meaning I selected SPI interface in radio tools; file name with UART meaning I selected UART in radio tools. The service pack is 3.8.0.3.31.2.0.0.0.2.2.0.6

cc3120_radiotool_spi_uart.zip

Hi Kristen,
Yes, I've tried on two different emuboost & boostpack, and still cannot connect to the chip via UART.

I also tried disconnecting SPI-CLK pin only, stacking up boostpack and emuboost, and selecting UART in radio tools, the connection did not success. Please help!

regards,
Jo

Hello Kristen,

Any update for this? Are you able to see this problem? My customer is waiting for a way to perform RF TX/RX test, if Radio Tool thing can not be resolved soon, please advice alternative way to do the test, thanks!

regards, 

Jo

Hello Michael,

I'm trying to connect the emuboost with CC3120 boosterpack. I stacked up the two boards, but disconnected SPI-CLK pin, as shown in below figure. No other changes or modifications on HW. And launch Radio tools, select CC3120 UART for connection. You should be able to see the connection failure.

regards,

Jo

Hi Jo,

Even if you are trying to use UART to connect, you don't need to disconnect the SPI clock.

Using my CC3120 + EMUBOOST set I can connect using radiotool without issues. If you directly connect both boards using the LP headers, it should just work as-is.

When you check your PC's device manager, do you see all of the COM ports from the emuboost?

Also, are you able to connect to the CC3120 using Uniflash?

Regards,

Michael

Hello Michael,

I disconnect SPI clock for demonstrating the problem, that is, I chose UART for connection in Radiotool, but the actual signal was on SPI. Therefore the connection failed.

My customer only keeps UART interface on their own board, if the radio tools needs SPI, that's the problem.

And yes, the uniflash is fine with UART.

Can you connect with CC3120 boostpack via UART only in Radio tools? 

As you can see, the actual data is on SPI.

BR

Jo

Dear Michael

when CC31XXEMUBOOST connect to PC, Device manager will show 4 COM ports  (COM11 to COM14)

I only connect the SPI needed signal from CC31XXEMUBOST to CC3120BOOST

(MISO, MOSI, CS*, CLK, IRQ, RST, nHIB, VCC, GND)

Radio tool can use both SPI and UART to control CC3120BOOST , but the wires only connect SPI interface

But I only connect UART needed signal (TX, RX, CTS, RTS, RST, nHIB, VCC, GND) and it can't control CC3120BOOST

I choose one of four COM ports and got the same result (can't connect)

BR.

Youwin

Dear Michael

We got CC3120 Radio tool 1.0.3.5 software.

and connect Power, GND, TX, RX, CTS, RTS, nHIB, IRQ bewteen CC31xxEMUBOOST and CC3120BOOST.

The tool can connect to CC3120BOOST.

When using TX packetized, the RF instrument can't catch WiFi signal easily,

but TX Continuous is OK.

And  sometimes will see Abort at TX or RX

Is the nHIB & IRQ signal needed or not ??

Because we can't keep so many test point pins (8 pins) for factory testing

We try to remove either nHIB or IRQ signal and the CC3120BOOST disconnect to PC 

BR.

Youwin

Dear Michael

We upgrade CC3120BOOST (3.3V) to 3.9.0.6

TX packetized and RX function of Radio tool 1.0.3.5 are both normal operatiing.

Thanks your great support

BR.

Youwin