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How can I use C language to read the serial number written into an OTP by the OTP writer?

April 26, 2017Language OTP read serial Writer written

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How can I use C language to read the serial number written into an OTP by the OTP writer?

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Answer When using the C language you must use inline assembly to read the IC serial number, which is written by the OTP writer. An example program is shown below: First declare a variable to indicate a ram address. unsigned long serial_num @0x80; Then read out the serial number to this variable.