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Hi every one, I have just did a PWM project with Cyclone II DE1. The Output is a LED. I want see the Waveform in Oscilloscope. How can I do that? How can I connect the LED as output to Oscilloscope to see the waveform?
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Since the LEDs are under the plastic cover/shield covering the board, they are hard to probe. I would recommend sending the PWM signal two places; one to the LED and the other to a GPIO pin that you can access with the oscilloscope.
For example, if the signal inside your design is called 'pwm', then you would send that signal to two pins, eg., in VHDL
led <= pwm;
gpio <= pwm;
Cheers,
Dave
Honored Contributor
