用Red Hat9.0的交叉编译器编程，在32位ARM920T核的高速ARM 处理器AT91RM9200 以及其他外围扩展电路的开发板上实现的一个简单的二极管闪烁功能，主要目的是给初学者提供借鉴。 -Red Hat9.0 with the cross compiler programming, in 32-bit ARM920T core high-speed ARM processor, as well as other external AT91RM9200 development bo

旋转LED(cad建模及电路图)，可以利用电风扇，然后实现旋转LED显示图片-Rotating LED (cad modeling and circuit), we can use electric fans, and for rotating LED display picture

ET6290是一颗具有PWM调制功能的恒流LED驱动电路，内置9个独立低阻LED驱动通道。其输出端的平均电流决定于PWM占空比，周期内高占空比将使得LED具有更高的亮度-ET6290 is a PWM modulation constant current LED driver circuit, built in 9 independent low resistance LED drive channel. The average current of the output depends on