imx51 serial number

lukaszwysocki — Wed, 06 Apr 2016 11:30:57 GMT

Hello,

I have a problem with the imx51, I can not find in RM register where serial number is stored, can someone help me?

thx Lukasz

Re: imx51 serial number

BrilliantovKiri — Wed, 06 Apr 2016 12:58:34 GMT

Hello, Lucasz!

Follow my code for iMX53:

/*
 *  i.MX53 Applications Processor Reference Manual, Rev. 2.1, 5/2012
 *  Table 2-10. Common Fusemap, p. 5088
 */
int cpu_id(unsigned int * __restrict m,
                        unsigned int * __restrict l)
{
        int fd = -1;
        unsigned char v[8] = {0}, i;
        fd = open("/dev/mxc_iim", O_RDONLY);
        if (fd <= 0)
                return -1;
        for (i = 0; i < 8; i++) {
                if (-1 == lseek(fd, 0x820 + i * 4, SEEK_SET))
                        goto ERROR;
                if (-1 == read(fd, &v[i], sizeof(char)))
                        goto ERROR;
        }
        close(fd);
        *m = (unsigned int)((v[0] << 24) | (v[1] << 16) |
                                                (v[2] << 8) | (v[3] << 0));
        *l = (unsigned int)((v[4] << 24) | (v[5] << 16) |
                                                (v[6] << 8) | (v[7] << 0));
        return 0;
ERROR:
        close(fd);
        return -1;
}

Re: imx51 serial number

igorpadykov — Wed, 06 Apr 2016 13:13:58 GMT

64bits unique id addresses: 820-83c Table 6-2. i.MX51 Fuse Map

http://www.freescale.com/files/dsp/doc/ref_manual/MCIMX51RM.pdf

Best regards

igor

Re: imx51 serial number

lukaszwysocki — Thu, 07 Apr 2016 08:02:37 GMT

Thank you very much!

--
Lukasz

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