forked from tanchou/Verilog
Refactor ultrasonic_fpga and ultrasonic_sensor modules for improved functionality
- Initialized registers in ultrasonic_fpga to avoid undefined behavior. - Modified state machine in ultrasonic_fpga to include a COMPUTE state for better echo measurement handling. - Adjusted echo counting logic to ensure accurate distance calculation. - Updated ultrasonic_sensor to allow for a more flexible trigger pulse timing by reducing the threshold for valid triggers.
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