本模拟I2C软件包包含了I2C操作的底层子程序，使用前要定义

好SCL和SDA。在标准8051模式(12 Clock)下,对主频要求是不高于12MHz(即1个

机器周期1us) 若Fosc>12MHz则要增加相应的NOP指令数。(总线时序符合I2C标

准模式,100Kbit/S)。-The simulation package includes I2C operation of the bottom of I2C subroutines, use the former to the definition of good SCL and SDA. 8051 in standard mode (12 Clock) under the requirements of the frequency is not higher than 12MHz (that is, a machine cycle 1us) if the Fosc