JTAG Connection - Missing RESET Pin in ESP-PROG

javaska
Posts: 2
Joined: Tue Jan 12, 2021 5:27 pm

JTAG Connection - Missing RESET Pin in ESP-PROG

Postby javaska » Mon May 31, 2021 10:54 pm

Dear community, good afternoon

Going to use ESP-PROG with JTAG connection.
I would expect to connect RESET signal to the EN pin of my ESP32-WROOM-32D but can´t find it in the JTAG header of ESP-PROG.

Should I add external reset?

Thanks for your comments.
Best regards,

ESP_Sprite
Posts: 9770
Joined: Thu Nov 26, 2015 4:08 am

Re: JTAG Connection - Missing RESET Pin in ESP-PROG

Postby ESP_Sprite » Tue Jun 01, 2021 12:39 am

It depends - what do you want to use the ESP-PROG for? In general, we can reset the chip using JTAG commands, so for debugging it's not really necessary.

javaska
Posts: 2
Joined: Tue Jan 12, 2021 5:27 pm

Re: JTAG Connection - Missing RESET Pin in ESP-PROG

Postby javaska » Tue Jun 01, 2021 1:14 pm

Dear ESP_Sprite, good morning

Thanks for your reply.
I will be using JTAG for both debugging and flashing through JTAG. Should I connect anything on the EN pin of the device?.

Thanks again.
Best regards,

ESP_Sprite
Posts: 9770
Joined: Thu Nov 26, 2015 4:08 am

Re: JTAG Connection - Missing RESET Pin in ESP-PROG

Postby ESP_Sprite » Tue Jun 01, 2021 1:33 pm

I don't have that much experience with flashing through JTAG, but I don't think so. (Well, outside of the power-on-reset circuit, see e.g. the devkitc schematics or the hardware guidelines for that.)

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