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Chip_IAP_ReadUID() code has a bug? Yes.

Question asked by Chris Pflieger on Aug 2, 2018
Latest reply on Aug 6, 2018 by Kerry Zhou

The user manual says this:

Return Code CMD_SUCCESS followed by four 32-bit words of a unique serial number in ASCII format. The word sent at the lowest address is sent first

 

But the code in the LPC5411x package is this:

 

/* Read the unique ID */
uint32_t Chip_IAP_ReadUID(void)
{
    uint32_t command[5], result[4];

 

    command[0] = IAP_READ_UID_CMD;
    iap_entry(command, result);

 

    return result[1];
}

I'm not sure is that's just buggy code that just keeps floating around, but it clearly won't work. Digging around in the forums I see that this exist in several LPCOpen packages.

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