1. Compare Mode (Non-driven State):
Tested UART RX functionality from STM32F407 using the Digital Pattern Editor. Connected TX pin (3.3V) to the editor input and configured UART settings (115200 baud, 8N1). Expected to observe a valid UART frame (LOW start bit, 8 data bits, HIGH stop bit), but only received continuous HIGH (11111111) signals — no valid frame detected.
2. Capture Waveform:
Attempted UART RX validation using waveform capture method. Connected TX pin to the Digital Pattern Editor with matching UART settings. Used capture_start, capture, and capture_stop opcodes to acquire the frame. Captured data showed all HIGH bits (11111111), indicating failure to detect a valid UART transmission.
