| File name | Commands | Purpose |
| README.md | this file | |
| GD32VF103 hw-I2C.f | I2C-ON | Hardware I2C driver, activate I2C |
| GD32VF103 bb-I2C.f | I2C-ON | Bitbang I2C driver, activate I2C |
| I2C-Test.f | 50 I2C? | Check if device 50 is present |
| Simple I2C-EE.f | SHOW | Tiny 24C02 EEPROM driver with example |
| Advanced I2C-EE.f | SHOW | 24C02 EEPROM driver, memory management & example |
An I2C example running on noForth RCV