Thanks all reply. All of your advise are meaningful. Since I have some limitation, please kindly advise me how to generate the (1~9999)us ON / (1 ~ 9999) us OFF time pulse training using8253(4). The MCU will be ATMEL AT89c52RD2.
In addition, the pulse train can be started and stop by external signal. Again, Condition -1/. 8253 / 8254. 2/. MCU - AT89C52RD2 3/. Range - 1~9999 us ON Time and 1 ~ 9999us OFF time , Adjustable. 4/. Two External Signal - Level can be define. - Start : Allow the pulse output. - Stop : Disable the puls output and force the output to LOW.
Thanks all. regards, lamb.