https://github.com/charkster/samd21-i2c_slave_16bit_address

This implements an i2c slave with a register map of 16k bytes in sram (SAMD21 has a total of 32kB ram). A 2 byte write is needed to load a 14bit address. The slave supports multi-byte writes and reads. It uses the "Wire" library.
https://github.com/charkster/samd21-i2c_slave_16bit_address

16bit i2c-device samd21

Last synced: 8 months ago
JSON representation

This implements an i2c slave with a register map of 16k bytes in sram (SAMD21 has a total of 32kB ram). A 2 byte write is needed to load a 14bit address. The slave supports multi-byte writes and reads. It uses the "Wire" library.

• Host: GitHub
• URL: https://github.com/charkster/samd21-i2c_slave_16bit_address
• Owner: charkster
• License: mit
• Created: 2021-06-18T05:37:29.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2022-10-22T23:34:17.000Z (about 3 years ago)
• Last Synced: 2025-01-13T19:26:57.890Z (10 months ago)
• Topics: 16bit, i2c-device, samd21
• Language: Python
• Homepage:
• Size: 31.3 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# samd21-i2c_slave_16bit_address

This implements an i2c slave with a register map of 16k bytes in sram (SAMD21 has a total of 32kB ram). A 2 byte write is needed to load a 14bit address. The slave supports multi-byte writes and reads. It uses the arduino "Wire" library, and can be easily ported to other MCUs.

I use this to model ASICs which use 16bit addressing with an i2c interface. A UF2 file is included for easy programming and the i2c pins are as documented in Seeeduino Xiao and QT PY pin diagrams.