75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
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import os
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import serial
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import time
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from smbus import SMBus
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addr = 0x8
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bus = SMBus(1)
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# define the number of numbers and bits per number to generate
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num_numbers = 60
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bits_per_number = 5000
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# calculate the total file size in bits
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filesize = num_numbers * bits_per_number
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# define the filename
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filename = f'{num_numbers}numbers_{bits_per_number}bits'
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start_time = time.time() # start time of read
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with open(filename + '.bin', 'wb') as file:
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for i in range(num_numbers):
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# write the separator between numbers except for the last one
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#if i != num_numbers - 1:
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#file.write(b'' + b'')
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for j in range(bits_per_number // 8):
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# read one byte from the serial port
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data = bus.read_byte(addr)
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file.write(bytes([data]))
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time.sleep(0.000001)
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end_time = time.time() # end time of read
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elapsed_time = end_time - start_time
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seconds = int(elapsed_time)
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milliseconds = int((elapsed_time % 1) * 1000)
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new_filename = f"{filename}_TimeInSeconds_{seconds}_{milliseconds}.bin" # filename in format filename_seconds_milliseconds as txt with needed time to finish read
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os.rename(filename + '.bin', new_filename) # change filename to new filename
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# Open the file in binary mode
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with open(new_filename, 'rb') as f:
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# Read the contents of the file as bytes
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content = f.read()
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print(content)
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# Convert the bytes to a string of hexadecimal digits with zero padding
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hex_str = ''.join(format(byte, '02x') for byte in content).zfill(num_numbers * (bits_per_number // 4))
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# Write the hex string to the file with separators and newlines
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with open(filename + '.txt', 'w') as f:
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for i in range(num_numbers):
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hex_number = hex_str[i * (bits_per_number // 4) : (i+1) * (bits_per_number // 4)]
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# write the separator between numbers except for the last one
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if i != num_numbers - 1:
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hex_number += '//'
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f.write(hex_number + '\n')
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print(f"time needed in seconds: {elapsed_time:.2f}. New filename: {new_filename}.") # console write
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# Open the file in binary mode
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with open(new_filename, 'rb') as f:
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# Read the contents of the file as bytes
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content = f.read()
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# Convert the bytes to a string of binary digits
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binary_str = ''.join(format(byte, '08b') for byte in content)
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# Write the binary string back to the file with separators
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with open(filename + '_binary.txt', 'w') as f:
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for i in range(0, len(binary_str), bits_per_number):
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binary_number = binary_str[i:i+bits_per_number]
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f.write(binary_number + '')
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