- 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.
- Implemented the uart_tx module for UART transmission with configurable clock frequency and baud rate.
- Added a testbench (uart_tx_tb) to verify the functionality of the uart_tx module, including signal generation for start, data, and clock.
- Created a backup of the previous testbench (uart_tx_tb_old) for reference.
- Created a new testbench file `top_ultrasonic_led_tb.vvp` to simulate the functionality of the `top_ultrasonic_led` module.
- Included necessary signal definitions and event triggers for clock, reset, start, echo, and trigger signals.
- Implemented a state machine to handle the ultrasonic measurement process and LED display logic.
- Added simulation parameters for distance measurement and LED control.
- Integrated VPI calls for waveform dumping and simulation control.
- Created a new testbench file `top_ultrasonic_led_tb.vvp` to simulate the `top_ultrasonic_led` module.
- Defined the necessary signals and events for testing the ultrasonic sensor functionality.
- Implemented the main test sequence including triggering the ultrasonic sensor and monitoring the output LEDs based on distance measurements.
- Included timing and state management for accurate simulation of the ultrasonic sensor behavior.
- 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.
