{{pfw:banner.png}} ====== I2C for the GD32VF103 ====== * [[en:pfw:i2c_gd32vf_mecrisp|I2C for Mecrisp]] (not ready). * [[en:pfw:i2c_gd32vf_noforth|I2C implementation & examples for noForth]]. {{https://user-images.githubusercontent.com/11397265/123394697-b64dcb00-d59f-11eb-82f1-ce43c2ab7c64.jpg|bitbang I2C on GD32VF sm}} **Bitbang I2C on the GD32VF103 SEED board** The SEED board contains some nice extra hardware: * 32.768kHz crystal * 24C02 I2C EEPROM * W25C64 SPI Flash memory * Three leds * Two switches * Connector for LCD display * Connector for SD-card This is place for the I2C drivers in different flavours