Datasheet

Then proceed by sending some commands to the AT45DB011 DataFlash chip in the
original data logger and read the return values:
• To read the chip status, which should return 0x8C :
[0xd7 r:1]
• To read the manufacturer ID and device density, which should return the values
0x1F 0x22 0x00 0x00 :
[0x9f r:4]
• To read the entire security register of 128 bytes:
[0x77 0 0 0 r:128]
Figure 9: The BusPirate having a friendly chat with an original Davis data logger. NOTE: The SPI wires
have to be kept short, otherwise it just won’t work.
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