ESP8685­-WROOM­-03 flashing/programming

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stevasway
Posts: 4
Joined: Wed Mar 01, 2023 4:42 pm

ESP8685­-WROOM­-03 flashing/programming

Postby stevasway » Thu Mar 09, 2023 4:22 pm

Hi all,
do you know how to flash the ESP8685­-WROOM­-03 without using testpad IO9?
JTAG signals are disabled and is not possible to program using ESP-PROG.

Thanks
Stevasway
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ESP_Sprite
Posts: 9764
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP8685­-WROOM­-03 flashing/programming

Postby ESP_Sprite » Fri Mar 10, 2023 12:44 am

You could try to use the built-in USB-serial-JTAG converter.
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grizzly
Posts: 1
Joined: Thu Jul 27, 2023 7:35 pm

Re: ESP8685­-WROOM­-03 flashing/programming

Postby grizzly » Thu Jul 27, 2023 7:40 pm

I have developed a clip-on device for flashing this chip, which can connect to a standard usb-serial device. It includes a push button for boot mode.
If you're interested I can sell you one for $20, let me know.
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