1  # SPDX-FileCopyrightText: 2017 Limor Fried for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import os
 6  
 7  import adafruit_sdcard
 8  import board
 9  import busio
10  import digitalio
11  import storage
12  
13  # Use any pin that is not taken by SPI
14  SD_CS = board.D0
15  
16  # Connect to the card and mount the filesystem.
17  spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
18  cs = digitalio.DigitalInOut(SD_CS)
19  sdcard = adafruit_sdcard.SDCard(spi, cs)
20  vfs = storage.VfsFat(sdcard)
21  storage.mount(vfs, "/sd")
22  
23  
24  # Use the filesystem as normal! Our files are under /sd
25  
26  # This helper function will print the contents of the SD
27  
28  
29  def print_directory(path, tabs=0):
30      for file in os.listdir(path):
31          stats = os.stat(path + "/" + file)
32          filesize = stats[6]
33          isdir = stats[0] & 0x4000
34  
35          if filesize < 1000:
36              sizestr = str(filesize) + " by"
37          elif filesize < 1000000:
38              sizestr = "%0.1f KB" % (filesize / 1000)
39          else:
40              sizestr = "%0.1f MB" % (filesize / 1000000)
41  
42          prettyprintname = ""
43          for _ in range(tabs):
44              prettyprintname += "   "
45          prettyprintname += file
46          if isdir:
47              prettyprintname += "/"
48          print('{0:<40} Size: {1:>10}'.format(prettyprintname, sizestr))
49  
50          # recursively print directory contents
51          if isdir:
52              print_directory(path + "/" + file, tabs + 1)
53  
54  
55  print("Files on filesystem:")
56  print("====================")
57  print_directory("/sd")