MCS51系列单片机采用普通I/O实现I2C接口，数据的读写等-MCS51 single-chip, general I / O I2C interface, data such as literacy

这是mcs51下的i2c实现，采用gpio来作为i2c的sda&scl.该实现几乎包含了i2c所有的可能情况！-mcs51 This is the realization of i2c, gpio used as the sda i2c

MCS51 Controller Library 1.DS1307.h // For DS1307 with i2c Bus 2.I2C51.h // For i2c bus 3.lcd4bit.h // For LCD4bit 4.lcd8bit.h // For LCD8bit 5.MCP3208.h // For MCP3208 with SPI Bus 6.PWM.h // For Internal MCS51 PWM Mode 7.Serial.h

针对单片机C51的接口电路，能对需要做多个实验融合在一起的同学有些帮助。-This programer for MCU C51 interface ,there are five aspects,for 18b20,lcm,i2c,DA0832 and DC motor.

按键及数码管显示驱动芯片，调试通过，有中文备注。CH452的真正2线接口，含低电平脉冲按键中断在内，只需要2个I/O引脚，兼容I2C/IIC时序 两线制方式SCL/SDA，按键中断由SDA产生，接单片机的脉冲/边沿中断引脚 对于频率低于24MHz的MCS51，为了节约传输时间，可以适当减少SCL/SDA之间的延时-Buttons and digital display driver chip debugging through, Chinese Remarks. Including