PHILIPS的D12芯片是一款具有并行总线和局部DMA传输能力的高速USB接口器件.D12芯片提供了3个端点,每个端点都有输入和输出端点号各一个,同时端点2还提供了4种方式的数据传输方法.本源码对D12的固件编程使用-PHILIPS The D12 is a chip with a parallel bus and the local DMA transfer capability, high-speed USB interface device. D12 chip provides the three endpoints, each endpoint has a different input and output endpoint number one, while endpoint 2 also offers four kinds of method of data transfer method. The source of the D12' s firmware programming using the