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Intel Edison GPIO 13

idata
Community Manager
1,096 Views

Hello everybody,

While working with the Intel Edison minibreakout board, I found that GP13 (J18-1) is set on startup. It seems that the pin is set in u-boot before the kernel is started.

When searching for the pin number the watchdog appeared several times. Is GPIO 13 the output for the watchdog LED or a different output? Where is the file or what is the name of the file where I can change the output pin. I will use this pin for my application and it is confusing when the LED is set on startup and then switches off by my application after the Linux is fully started.

I use the iot-devkit-yp-poky-edison-20160606 sources.

Thank you for you hints.

Best

Nils

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1 Solution
idata
Community Manager
146 Views

Hi Nils,

 

 

Thank you for contacting us.

 

 

Unfortunately, any customization or changes to the Edison's u-boot or kernel are not supported. I have found this thread that maybe can help you if you want to customize u-boot: https://communities.intel.com/thread/107935 https://communities.intel.com/thread/107935.

 

 

According to your issue, maybe you can create a script that changes the GPIO configuration when it is booting, to do this use this thread as a reference: https://communities.intel.com/thread/111545 https://communities.intel.com/thread/111545, but it I think you will have the same problem with the pin, or you can use another pin to avoid this issue.

 

 

I hope you find this helpful

 

 

Have a nice day.

 

 

Regards,

 

Leonardo R.

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1 Reply
idata
Community Manager
147 Views

Hi Nils,

 

 

Thank you for contacting us.

 

 

Unfortunately, any customization or changes to the Edison's u-boot or kernel are not supported. I have found this thread that maybe can help you if you want to customize u-boot: https://communities.intel.com/thread/107935 https://communities.intel.com/thread/107935.

 

 

According to your issue, maybe you can create a script that changes the GPIO configuration when it is booting, to do this use this thread as a reference: https://communities.intel.com/thread/111545 https://communities.intel.com/thread/111545, but it I think you will have the same problem with the pin, or you can use another pin to avoid this issue.

 

 

I hope you find this helpful

 

 

Have a nice day.

 

 

Regards,

 

Leonardo R.
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