Unique Cpu Id - Cartft FLEETPC-ARM-300 Series Reference Manual

3.15

Unique CPU ID

Each FLEETPC-ARM-300 product is with a unique Serial Number on iMX6. The unique
serial number allows software developer to identify (or protect) their software by the
unique number.
Use the following Linux commands to read CPU ID:
# cat /sys/fsl_otp/HW_OCOTP_CFG0
0xe301388d
# cat /sys/fsl_otp/HW_OCOTP_CFG1
0x220f11d4
You can concatenate CFG0 and CFG1 together to form a unique ID.
For example, the unique ID is: 0xe301388d220f11d4
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// sample output
// sample output
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