I am trying to sequentially flash four digital outputs. I want to run them at a frequency, with 25% duty cycle, one after the other. To be clear, output one on for 25%, output two for 25-50%, output three for 50-75%, output four 75-100%, then repeat. I tried using four counters, but they are not synchronized, so the pulses do not stay sequential. I am using a USB-6143. This seems really basic, but I am a pretty new user.
Thank you -