HARDWARE Design

angel_rdz
Posts: 2
Joined: Fri Oct 16, 2020 2:58 am

HARDWARE Design

Postby angel_rdz » Fri Oct 16, 2020 3:04 am

Hi,
I'm developing my own PCB design using the ESP32_WROOM module.
I'm going to use the JTAG for programming and I was wondering if I need the RST and PGM lines? Or Is there any problem if I don't use them?
I can send my layout if needed!

Thank you!

AndreRamakers
Posts: 5
Joined: Fri Mar 20, 2020 1:18 pm

Re: HARDWARE Design

Postby AndreRamakers » Fri Oct 16, 2020 11:26 am

Hi,

We have done our own design. The JTAG connects only with TMS, TCK, TDI and TDO. The reset is not connected to the programmer. Just power the WROOM and start debugging.

Please be careful, I had to program the WROOM first through the serial line before the JTAG was usable. I have entered a question for this last week on the forum.

Best regards,
André

angel_rdz
Posts: 2
Joined: Fri Oct 16, 2020 2:58 am

Re: HARDWARE Design

Postby angel_rdz » Fri Oct 16, 2020 3:17 pm

Hi Andre,

Thank you for your fast response and the advice!
I will look for that question then.

Regards,

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