How to read chip ID of NRF24LE1?

[junma]

Hi all,

Can I read the chip ID of NRF24LE1 in code? how can I get the ID? Or is there any readable identifier that make each chip "unique" from each other? Because the device I designed need an unique identifier to recognize itself in the device group.

Hope someone would help me about this question, thanks in advance!

Best regards, Junma

[Asbjørn]

There's no CHIPID available on the nRF24LE1. If you can do the generation of the ID at run time you could use the Random Number Generator and create one and store it. Could this be an option for your use case?

[Heikki]

Yes, you can read chipID by this function: 

void readID (unsigned char *dst, unsigned char n)
{ 
    unsigned char i, j; 
    volatile unsigned char __xdata *gzp = (unsigned char __xdata *)0x0b;// 0x0b is start of chip ID in info-page
    F0= INFEN;
    INFEN = 1;

    for (i=0; i<n; i++) 
    {
        j = *(gzp + i);
        INFEN = 0;
        dst[i] = j;// dst[i] has to executed while INFEN == 0
        INFEN = 1;
    }
INFEN = F0;
}