I don't think the software commands can see any closer to the pins than the 
I/O registers associated with the pins.
Physical or electrical damage to the pins, such as damaging the ESD diodes, 
or damaging an I/O transistor might not change the behavior at the I/O 
If you want to test or verify the pin hardware, I think some minimal 
external hardware needs to be involved.
--- Graham


On Monday, August 7, 2017 at 4:22:25 PM UTC-5, Mala Dies wrote:
> Hello Graham,
> Seth here. Okay, I will just check to see if they are working. I thought 
> the distro could detect our hardware and if it was in working order or not. 
> I know of the *i2cdetect *command to see if the hardware is available but 
> I thought there was a software to detect if the hardware still was working. 
> Seth
> P.S. Thank you for your input. I will check out the looping function for 
> output. I might just see if the multi-meter can read the respected volts 
> from the pins "I ruined." Thank you, again. 
> On Monday, August 7, 2017 at 12:58:39 PM UTC-5, Graham wrote:
>> I don't know how to do a pure software solution.
>> If you want coverage of the BBB Hardware all the way to the pin, I would 
>> do a simple loop-back test, where the pins are connected in pairs, and you 
>> wiggle one pin as an output, and see if its paired pin can see it as an 
>> input.
>> Then reverse and wiggle the second pin, and see if the first sees it.
>> Very simple hardware. Just a bunch of pins shorted to each other.
>> --- Graham
>> ==
>> On Monday, August 7, 2017 at 11:46:43 AM UTC-5, Mala Dies wrote:
>>> Hello,
>>> I am still looking around for test options for the Debian OS on our BBB. 
>>> Do you know how to test the P9 and P8 headers on our boards with software?
>>> Seth
>>> On Thursday, July 27, 2017 at 7:28:09 PM UTC-5, Mala Dies wrote:
>>>> Hello,
>>>> The other day is when I did some incorrect measurements and almost 
>>>> burned down the "world." Anyway, I need some support. What are some 
>>>> surefire ways I can test my GPIO pins in the Debian distro with our 
>>>> commands?
>>>> Seth
>>>> P.S. I do not want to test them via hardware. I thought there might be 
>>>> a way to test them with our BASH in Debian. If you know and are willing to 
>>>> share, I would like to have you on board on this specific task. Thank you 
>>>> again for the support. 

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