[BUG] Waveforms 3.21.3 UART Protocol analyser does not work

[gabagool]

Hi,

Apologies is this is the wrong place to post this - I installed the latest version of Waveforms (3.21.3) and tried to sniff my UART lines on my PCB, however was not able to see any ASCII output in the terminal window. Going to the Logic window and connecting to my DIO line, I can see the UART pulse. I confirmed my UART to be working by using another sniffing tool in the office. 

A colleague then tried it on his Digilent and we observed the UART to be working. The only major difference being the version. I downgraded my Waveforms to 3.20.1 and ran the Protocol window again and have observed the ASCII outputs in the terminal window.

[attila]

Hi @ZdenoQC @gabagool

The Protocol/Spy for AD2,3 will be fixed in the next version.
Thank you for the observation.

 

[attila]

Hi @gabagool @ZdenoQC

 

[attila]

Hi @gabagool

Which device are you using ?
Please attach screenshots with the Logic Analyzer capture and Protocol. 

[gabagool]

@attila sorry it is a Digilent Discovery 3.

3.21.3

 

3.20.1

 

[attila]

Hi @gabagool

I don't know what could be wrong, it is working for me.
Is the Digital Voltage set correctly ?

[gabagool]

Not sure, but you are using a DDiscovery B device. I have just tried this again and it still does not work on my Discovery 3. Also, I don't have the option to change digital voltage on the discovery 3.

Again, rolling back fixes this problem.

[attila]

Hi @gabagool

I thought you were using Digital Discovery, which can adjust the DIO voltage, but Analog Discovery doesn't have such features.

What UART rate are you using ?

[ZdenoQC]

Hi there,

Just to add, I have the same issue with the Analog Discovery 2. I also revert back to 3.20.1 to make it work again. Logic analyzer show the uart is working and even show decoded data. Currently running at 3.3V 115.2k. Tried config 1 and 4. Running 3.21.20 on windows 10.

The send and receive tab is working but I only have one side of the communication

Thanks for the support

William

Edited January 11 by ZdenoQC