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5个IO口做25个按键
本资源详细介绍了一种创新的电路设计方法，通过巧妙利用仅5个IO口实现多达25个按键的功能。这对于需要在有限硬件接口条件下扩展输入能力的项目尤其有价值，非常适合嵌入式系统开发人员学习和应用。文档中不仅包...
Port IO
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1-IO端口输出-51程序
适用于初学者及嵌入式系统开发者的51单片机项目，专注于IO端口输出功能的实现。基于C语言编写，可在EL89C开发板上运行测试，帮助用户快速掌握基本的硬件控制技能，是学习51系列单片机编程的理想选择。...
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2-IO端口输入-51程序
此资源采用高效C语言编程技术，专为EL89C开发板设计，实现了IO端口的输入功能。基于经典的51单片机架构，确保了代码的稳定性和兼容性。适用于初学者及开发者进行嵌入式系统的学习与实践。...
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This driver implements a COM port interface for USB Point-of-Sale devices
This driver implements a COM port interface for USB Point-of-Sale devices...
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A real-time serial port device driver, works with RT-Linux and RTAI.
A real-time serial port device driver, works with RT-Linux and RTAI....
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Jtag schematic for embemed system design. It support parallel port connected to jtag.
Jtag schematic for embemed system design. It support parallel port connected to jtag....
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HX8346 lcd driver software which can port to every Platform with some modifying.
HX8346 lcd driver software which can port to every Platform with some modifying....
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void Main(void) { sys_init() // Initial 44B0X s Interrupt,Port and UART // user in
void Main(void) { sys_init() // Initial 44B0X s Interrupt,Port and UART // user in...