您好,请问dlp4421有没有可用下降沿触发的中断,如果有请问是哪个端口,怎么调用了!datasheet上面好像没有找到,我现在想检测图下面黄色的波形,周期是8.3ms,我开的1ms的循环一次的进程,达不到我们想要的效果,只能用中断来做,对于下降沿能及时响应。。。。。
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