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μCOS-II上的LPC210x的通用IO使用的例子
μCOS-II上的LPC210x的通用IO使用的例子，在EasyArm2104板上调试通过 按板上的KEY1则蜂鸣器会响两声 短接JP9，运行程序，每次短接JP1蜂鸣器会叫两声。...
IO
I/O输入/输出(Input/Output)，分为IO设备和IO接口两个部分。在POSIX兼容的系统上，例如Linux系统[1]，I/O操作可以有多种方式，比如DIO(DirectI/O)，AIO(AsynchronousI/O，异步I/O)，Memory-MappedI/O(内存映射I/O)等，不...
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Software spi header file using 3 general purpose IO pins of an atmel uc
Software spi header file using 3 general purpose IO pins of an atmel uc...
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PCA9673 Remote 16-bit IO expander for Fm I2C-bus with interrupt and reset
The PCA9673 provides general purpose remote I/O expansion for most microcontrollerfamilies vi...
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PCA9537 4bit I2C bus and SMBus low power IO port with interrupt and reset
The PCA9537 is a 10-pin CMOS device that provides 4 bits of General Purpose parallelInput/Out...
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PCA9672 Remote 8-bit IO expander for Fm I2C-bus with interrupt and reset
The PCA9672 provides general purpose remote I/O expansion for most microcontrollerfamilies vi...