Thanks and sorry for late reply.
I am going to use internal EEPROM of beaglebone black.
I can read some data from it, but I can't write some data to it.
I grounded TP4 test pin for writing to EEPROM, but it failed.
BBB-SRM 
<https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf> 
document 
says we can use internal EEPROM of beaglebone black for personal purpose.
But I can't do it.
Can you help me?
Best regards.

On Tuesday, October 23, 2018 at 8:47:31 AM UTC-5, RobertCNelson wrote:
>
> On Tue, Oct 23, 2018 at 7:08 AM <[email protected] <javascript:>> 
> wrote: 
> > 
> > Hi, all. 
> > I am studying Beaglebone black, and now I am facing with internal EEPROM 
> problem. 
> > I searched couple of days, but no idea yet. 
> > How can I read and write to the internal EEPROM of beaglebone black. 
> > Best regards. 
>
> What problem are you facing? 
>
> The eeprom is write protected, other then that it's accessible thru 
> the standard i2c/eeprom interfaces.. 
>
> -- 
> Robert Nelson 
> https://rcn-ee.com/ 
>

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