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利用AVR单片机的大部分指令为单周期的具有高速传输的特点,通过单片机的IO口直接连至USB总线,实现了USB规范所规定的低速设备的功能,从而无需外接USB控制芯片,减小了硬件开发成本。
-Most of AVR microcontrollers use a single instruction cycle of the characteristics of high-speed transmission, through the microcontroller IO port directly connected to the USB bus, to achieve the required low-speed USB specification capabilities of the device, eliminating the need for an external USB controller chip, reducing hardware development costs.
-Most of AVR microcontrollers use a single instruction cycle of the characteristics of high-speed transmission, through the microcontroller IO port directly connected to the USB bus, to achieve the required low-speed USB specification capabilities of the device, eliminating the need for an external USB controller chip, reducing hardware development costs.
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无USB控制芯片的AVRUSB编程器的实现.kdh
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