LPC2148 USB Audio Device Example This USB example project implements an USB Audio Device that connects via the USB interface to the PC. It may be used on the following devices: LPC2141 LPC2142 LPC2144 LPC2146 LPC2148 An USB Audi

1、基于stm23f103c8t6的开发板开发，外接rc522读卡板。 2，实现让windows系统把设备认成hid键盘，当刷M1卡时，把4字节的卡号以键盘输入的形式上送到电脑。 3，已在xp，win7系统上测试。把鼠标放在文本输入框中，刷卡，卡号即可显示在文本框中，并回车换行。(1, based on the stm23f103c8t6 development board development, external rc522 read card board. 2, to achieve