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#!/usr/bin/env python3
import serial
import time
#ser = serial.Serial('/dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0', 230400)
ser = serial.Serial('/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0', 250000)
#while True:
# ser.write(bytes(range(256)))
start = time.time()
last_val = None
run = 0
total_errors = 0
rx_bytes = 0
last_print = time.time()
while True:
bytes = ser.read(256)
for byte in bytes:
if last_val is not None and byte != (last_val + 1) % 256:
if run > 0:
print(f'{time.time()-start:>8.3f} {run} {last_val:02x} {byte:02x}')
run = 0
total_errors += 1
else:
run += 1
rx_bytes += 1
if time.time() - last_print > 5:
last_print = time.time()
print(f'{time.time()-start:>8.3f} {run} [all good] err={total_errors}@rx={rx_bytes}B',
f'(rate 1/{rx_bytes/total_errors:.5g})' if total_errors > 0 else 'rate unknown')
last_val = byte
#while True:
# data = ser.read_until(b'\0')
# print(f'{time.time()-start:>8.3f} {len(data)}')
# while True:
# data = ser.read(256)
# print('YES' if b'\0' in data else 'NO ', data)
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