Imported from GitHub: bobsrac/esp-prog · commit 4adac66 · license MIT

Description

esp32 programmer - USBC to custom DF13-7 connector

README

esp-prog

esp32 programmer - USBC to custom DF13-7 connector

This is from the circuit on the ESP32-C6-DevKitC-1 board from Espressif. It includes the USB-UART, BJT translators for reset and boot mode, and a 3.3V LDO.

• Full kicad sources included
• Tested by flashing ESP32-C6-WROOM-1-N8 module using

images

PCA BOM

DigiKey buy list for the PCA (was $11.66 at time of writing) - NOTE: this is for PCA only. No target or PC (USB-C) cable parts included: http://www.digikey.com/en/mylists/list/WV3N0IXJLB

PC Cable

The CP2102N is a USB 2.0 full-speed (12 Mbit/s) device, so any USB-C cable with data lanes should work.

Target Cable

DigiKey buy list for cable (was $7.54 at time of writing): http://www.digikey.com/en/mylists/list/WWA0BU113L

DF13-7S-1.25C, qty 2: http://www.digikey.com/en/products/detail/hirose-electric-co-ltd/DF13-7S-1-25C/241754

H4BBG-10104-B6, qty 10: http://www.digikey.com/en/products/detail/hirose-electric-co-ltd/H4BBG-10104-B6/425553

Route pin 1 to pin1, and pin 7 to pin 7. With the pre-crimped wires from Digi-Key, the cable will want to lay with both connectors facing the same direction, with a half-twist in the middle. With the wires all laying flat and in parallel, one connector will be up while the other is down.

Template for Target PCA (Board to be programmed)

See target-template.