msp4301121和pcf8576应用程序，包括LCD显示和I2c接口程序-msp4301121 pcf8576 and applications, including LCD display and interface procedures I2c

基于STM32的标准软件模拟I2C接口程序，只要修改引脚定义及延时接口程序即可使用，改程序已在工业产品上大量应用，十分的稳定可靠并且代码编写规范。(The standard software based on STM32 simulates the I2C interface program. It can be used only by modifying the pin definition and delay interface program. The modified program