SD / MMC Requirements and Test Results
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SD / MMC Requirements and Test Results
The datalogger SD card requirements :
- SPI mode of operation.
- 3.3V (+-5V) operation
- full sized SD/MMC (reduced size not tested)
The datalogger and firmware has been tested with several types of SD and MMC cards with a range of sizes from 32 to 128mB and is believed to work with all. The firmware in was unable to operate with two cards - however a commercial card reader and Windows 2000 also failed these cards.
passed
- Lexar SD Card "Digital Film" (PAS032BADBV) 32MB : CID = 1 50 41 53 30 33 32 42 41 44 42 56 b2 0 44 a9
- SandDisk SD Card 64MB (SDSD064C) : CID = 0 53 44 53 44 30 36 34 43 68 d4 b6 8c 0 33 19
- A-Data MMC "My Flash" 64MB (4SDMMC) : CID = ff 12 34 53 44 4d 4d 43 20 11 30 0 30 0 27 cb
- PNY SD Card 128 MB (IN128MB) : CID = 18 49 4e 31 32 38 4d 42 3 40 5e d8 71 0 56 55
- PNY SD Card 64 MB
failed
- Sandisk SD Card 128MB (card has invalid track 0 under Win2K also)
- SanDisk SD Card 64MB (card has invalid track 0 under Win2K also)
