I am trying to communicate with a WF121 chip using the bluegiga WF121 gui. However after attaching to the correct com port, when I clicked retrieve info, the different views in the sidebar did not populate with the device or network information. I was also unable to push the "Turn WiFi On" button in the network view. I tried connecting two ways, once via a USB to TTL converter and once using a USB to FT232R breakout board, on both the UART1 and UART2 pins. After this all failed, I switched out the WF121 chip on my breakout board. Now after attaching to the com port, I am unable to even click retrieve info. I am not sure if it's an issue with my USB connection, my breakout board, or my chip (ie incorrect firmware), so if you have any suggestions on what to try next, I'd greatly appreciate it!
I have also attached a picture of my setup (where I'm using a USB to TTL converter (green is TX, white is RX) connected to Pad 35 and Pad 36 on the WF121 respectively), my breakout layout, and the integrated library I used in Altium to make the breakout.
Do you know what configuration does the module run? If it is factory default then most likely it is a wf121 example which is included also in the SDK under directory: C:\Bluegiga\wf121-1.4.1-91\example\wf121.
Could you please check if you are attempting to connect to UART interface with a correct baud rate and the correct pins according to the sample configuration? Also you should remember to use flow control when connecting with wifiGUI (it is enabled in the example).
Do you mean which version of the firmware is the chip running? I have not programmed the chip, so it should be running whatever the default configuration is. However, I currently do not have a PICkit, so my only way of updating the firmware is via the GUI, which I cannot currently connect to.
In terms of the UART connection, I am connecting via a baud rate of 112500 on the UART1 pins (as specified in the example configuration readme file) with flow control enabled, using this USB to FT232R converter (https://www.sparkfun.com/products/12731).
Could you please try connecting with UART2 pins, baud rate=115200 with flow control? Judging by the actual configuration in the project.xml it seems that readme file might be wrong and it actually configures the BGApi on UART2.
Let us know if it works in your case.