- Implemented the ultrasonic_fpga module to handle ultrasonic sensor operations including triggering and measuring distance.
- Added a simulation testbench (ultrasonic_sim) to validate the functionality of the ultrasonic_fpga module.
- The module includes state management for triggering the sensor and measuring the echo duration to calculate distance.
- Simulation includes initialization, triggering the sensor, and checking the output distance.
- Created tangnano20k.cst to define I/O locations for clock, button, and LEDs.
- Implemented top.v module to instantiate the counter with clock and button inputs, and 4-bit count output.
