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Altera_Forum's avatar
Altera_Forum
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13 years ago

using GPIO on DE2 board

hi, currently i'm doing a project using a sensor which has pwm output. i'm already done the coding to read the pwm output. i would like to connect the pwm output from the sensor ti de2 board as input...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Check the voltage compatibility first.

You will also need to connect a ground pin between your sensor and the DE2.

If you are "looking" at the PWM signal using logic clocked in the FPGA, then make sure to add a synchronizer, i.e.,

PWM input -> synchronizer -> FPGA logic

Cheers,

Dave