GMTROM/Archiv/pi_SPI.py

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Python
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2023-06-13 09:14:33 +02:00
import os
import time
import spidev
from StartUpTest import StartUPTest
from TotOnline import TotOnline
def read_data(num_numbers, bits_per_number):
spi = spidev.SpiDev()
spi.open(0, 0) # Öffnet die SPI-Kommunikation (Bus 0, Device 0)
spi.max_speed_hz = 16000000 # Legt die maximale Taktrate fest
# Calculate the total number of bytes required to accommodate the desired number of bits
total_bytes = (num_numbers * bits_per_number + 7) // 8
# Define the filename
filename = f'{num_numbers}numbers_{bits_per_number}bits.bin'
with open(filename, 'wb') as file:
bytes_received = 0
while bytes_received < total_bytes:
# Read a byte from SPI
data = spi.readbytes(1)
file.write(bytes(data))
bytes_received += 1
time.sleep(0.0000001)
return filename
def convert_to_binary(filename, num_numbers, bits_per_number):
with open(filename, 'rb') as f:
# Read the contents of the file as bytes
content = f.read()
# Convert the bytes to a string of binary digits
binary_str = ''.join(format(byte, '08b') for byte in content)
# Truncate the binary string to the desired length
truncated_binary_str = binary_str[:num_numbers * bits_per_number]
# Write the truncated binary string back to the file with separators
binary_filename = f'{num_numbers}numbers_{bits_per_number}bits_binary.txt'
with open(binary_filename, 'w') as f:
for i in range(0, len(truncated_binary_str), bits_per_number):
binary_number = truncated_binary_str[i:i+bits_per_number]
f.write(binary_number)
return binary_filename
def process_data_in_chunks(data, chunk_size=1000000):
chunks = [data[i:i+chunk_size] for i in range(0, len(data), chunk_size)]
return chunks
def perform_startup_tests(filename):
with open(filename, 'rb') as f:
# Read the contents of the file as bytes
content = f.read()
print("Run all StartUPTests")
binary_chunks = process_data_in_chunks(content)
first_chunk = binary_chunks[0]
result = StartUPTest.run_all_tests(first_chunk)
print(result)
return result
def perform_tot_online_tests(filename):
with open(filename, 'rb') as f:
# Read the contents of the file as bytes
content = f.read()
print("Run all TotOnline tests")
binary_chunks = process_data_in_chunks(content)
first_chunk = binary_chunks[0]
result = TotOnline.run_all_tests(first_chunk)
print(result)
return result
def analyze_data(num_numbers, bits_per_number, startup=False):
if startup:
filename = read_data(10, 80000)
binary_filename = convert_to_binary(filename, 10, 80000)
perform_startup_tests(binary_filename)
perform_tot_online_tests(binary_filename)
os.unlink(filename)
os.unlink(binary_filename)
else:
filename = read_data(num_numbers, bits_per_number)
binary_filename = convert_to_binary(filename, num_numbers, bits_per_number)
hex_filename = convert_to_hex(binary_filename, num_numbers, bits_per_number)
result = perform_tot_online_tests(binary_filename)
with open(hex_filename, 'rb') as f:
# Read the contents of the file as bytes
hex_return = f.read()
print(hex_return)
os.unlink(filename)
os.unlink(hex_filename)
os.unlink(binary_filename)
if result:
return hex_return
else:
filename = read_data(10, 80000)
binary_filename = convert_to_binary(filename, 10, 80000)
SUTres = perform_startup_tests(binary_filename)
TOTres = perform_tot_online_tests(binary_filename)
if SUTres and TOTres:
os.unlink(filename)
os.unlink(binary_filename)
return hex_return
else:
return False
# Teste den Code
result = analyze_data(50, 2560, startup=False)
print(result)