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example
example
 
 
tools
tools
 
 
.clang-format
.clang-format
 
 
.gitignore
.gitignore
 
 
CMakeLists.txt
CMakeLists.txt
 
 
LICENSE_MIT
LICENSE_MIT
 
 
Makefile
Makefile
 
 
README.md
README.md
 
 
kernel_i2c_flags.h
kernel_i2c_flags.h
 
 
main.c
main.c
 
 
pico_sdk_import.cmake
pico_sdk_import.cmake
 
 
tusb_config.h
tusb_config.h
 
 
usb_descriptors.c
usb_descriptors.c
 
 
usb_descriptors.h
usb_descriptors.h
 
 
version.h
version.h
 
 

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I2C interface

This RP2040 firmware implements the USB protocol expected by the I2C-Tiny-USB kernel driver, allowing the use of a Raspberry Pi Pico as USB to I2C adapter.

The original I2C-Tiny-USB project can be found at https://github.com/harbaum/I2C-Tiny-USB, this firmware is a complete re-implementation of the firmware for use with the RP2040.

More testing is needed to verify that the firmware works correctly, this project currently has proof of concept status.

Pinout

  • SDA (i2c data): GPIO 2
  • SCL (i2c clock): GPIO 3

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Release 1 Latest
Sep 9, 2023
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