553 Pulse Width Counter
553 : Pulse Width Counter
- Author: Devin Atkin
- Description: Pulse Width Counter Accessible Over UART
- GitHub repository
- Clock: 50000000 Hz
How it works
Simple Test Project which counts the width of an input square wave returning the time high, time low, and period.
How to test
This project works by counting the time high, time low, and period of the input signal. The design can be tested by feeding in a PWM signal and reading how the output changes.
External hardware
No external hardware is required for this proejct ot function.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | freq_in | time_hi_lo_per[0] | uart_tx |
| 1 | out_sel[0] | time_hi_lo_per[1] | uart_rx |
| 2 | out_sel[1] | time_hi_lo_per[2] | uart_tx_ready |
| 3 | out_sel[2] | time_hi_lo_per[3] | uart_tx_valid |
| 4 | out_sel[3] | time_hi_lo_per[4] | uart_rx_valid |
| 5 | time_hi_lo_per[5] | uart_rx_ready | |
| 6 | time_hi_lo_per[6] | ||
| 7 | time_hi_lo_per[7] |