61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
# Test for sdcard block protocol
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# Peter hinch 30th Jan 2016
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import os, sdcard, machine
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def sdtest():
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spi = machine.SPI(1)
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spi.init() # Ensure right baudrate
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sd = sdcard.SDCard(spi, machine.Pin.board.X21) # Compatible with PCB
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vfs = os.VfsFat(sd)
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os.mount(vfs, '/fc')
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print('Filesystem check')
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print(os.listdir('/fc'))
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line = 'abcdefghijklmnopqrstuvwxyz\n'
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lines = line * 200 # 5400 chars
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short = '1234567890\n'
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fn = '/fc/rats.txt'
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print()
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print('Multiple block read/write')
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with open(fn,'w') as f:
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n = f.write(lines)
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print(n, 'bytes written')
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n = f.write(short)
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print(n, 'bytes written')
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n = f.write(lines)
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print(n, 'bytes written')
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with open(fn,'r') as f:
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result1 = f.read()
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print(len(result1), 'bytes read')
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fn = '/fc/rats1.txt'
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print()
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print('Single block read/write')
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with open(fn,'w') as f:
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n = f.write(short) # one block
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print(n, 'bytes written')
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with open(fn,'r') as f:
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result2 = f.read()
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print(len(result2), 'bytes read')
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os.umount('/fc')
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print()
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print('Verifying data read back')
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success = True
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if result1 == ''.join((lines, short, lines)):
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print('Large file Pass')
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else:
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print('Large file Fail')
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success = False
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if result2 == short:
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print('Small file Pass')
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else:
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print('Small file Fail')
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success = False
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print()
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print('Tests', 'passed' if success else 'failed')
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