周立功LPC17XX系列配套例程。包括AD,DAC,EINT.GPDMA.GPIO,I2C.IAP,PWM,QEI,RTC,SPI,SSP,TIMER,UART,储存器加速，掉电唤醒，数字输入，CAN,ETHERNET,USB,I2S例程。是学习 的很好例程，例程很全，很值。-Zhou, who LPC17XX series matching routines. Including AD, DAC, EINT.GPDMA.GPIO, I2C.IAP, PWM, QEI, RTC, SPI, SS

I2C总线到GPIO通用串口的硬件语言程序-I2C bus to the the GPIO universal serial port hardware language program