Using esptool.py with RTS/CTS instead of RTS/DTR

jimparis
Posts: 3
Joined: Fri Jun 15, 2018 7:29 pm

Using esptool.py with RTS/CTS instead of RTS/DTR

Postby jimparis » Fri Jun 15, 2018 8:04 pm

I have a FTDI USB-to-serial adapter that only brings out TX, RX, RTS, and CTS, so I hooked it up directly to the ESP32 as follows:

Code: Select all

RTS --> EN
CTS --> IO0/BOOT
 TX --> RXD0
 RX <-- TXD0 
Then I wrote a esptool.py wrapper that makes it work, via libftdi & switching in and out of bitbang mode as needed:

https://github.com/jimparis/esptool-ftdi

Works great here. Maybe someone else will find it useful.

Jim

ESP_Angus
Posts: 1268
Joined: Sun May 08, 2016 4:11 am

Re: Using esptool.py with RTS/CTS instead of RTS/DTR

Postby ESP_Angus » Mon Jun 18, 2018 12:24 am

Nice trick!

Return to “Hardware”

Who is online

Users browsing this forum: No registered users and 5 guests