UCD3138OL40EVM-032：An error occurred while using the XDS110 emulator to burn programs to the UCD3138 chip

Hello ML,

Can you please send me a direct message with your email? I can send a preliminary UCD configuration with JTAG tutorial.

Regards,

Jonathan Wong

Hi Jonathan wong,

Of course, can you give me your email so that I can send a message.

Thanks

Hi Jonathan wong,

This is my email address: maliang@jndtech.net

Hi Jonathan Wong,

I couldn't find any relevant reply in my email. Can you confirm if a reply has been sent?

Thanks

Hi Jonathan Wong,

I have already applied through your friend request.

Thanks

Hi Jonathan Wong，

Thank you for sending the JTAG configuration document. I have successfully burned the simulation program. I found that during the configuration process, it is necessary to use the USB-TO-GPIO2 tool to view and modify the JTAG pin configuration of the IO multiplexing register. At the same time, I also found in the UCD31xx technical reference manual that the default value of IOMUX does not configure the TDO pin as the JTAG pin. So, I would like to confirm whether the new chips manufactured by the factory need to use the USB-TO-GPIO2 tool to view and modify the JTAG pin configuration of the IO multiplexing register?

Thanks！

Hello ML,

Glad the guide was helpful. We do have a Fusion Production GUI that allows you to write scripts that automate the JTAG flashing steps: https://www.ti.com/tool/FUSION-PRODUCTION-GUI. I will get back to you on the specific question by the end of the week. Apologies for the delay.

Regards,

Jonathan Wong

Hi Jonathan Wong,

There may be some issues with my description. I would like to know if the default configuration for the JTAG pin of the newly produced UCD3138 chip is not JTAG pin. Do I still need to view and modify the JTAG pin configuration of the IO multiplexing register through the Fusion Production GUI and USB-TO-GPIO2 tool?

Thanks!

Hello ML,

Is this your question: How do you flash production firmware onto a new UCD3138 chip when JTAG is not enabled by default? Does the JTAG have to be enabled by PMBus first or is there another method to flash new firmware via JTAG only?

I will get back to you if this is your question. Otherwise, please clarify your question.

Regards,

Jonathan Wong

Hi Jonathan Wong，

My first question is: Do newly produced chips default to not enabling JTAG or enable JTAG? The second question is: If JTAG is not enabled by default, does JTAG have to be enabled by PMBus first, or is there another way to flash new firmware only through JTAG?

Thanks！

Hi,Jonathan Wong

I would like to ask if there is a method that only uses JTAG to implement burning, without the need to enable JTAG through PMBus.

Thanks!

Hi,Jonathan Wong

Thank you very much for your reply. I think I understand the issue now.

Thanks!