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LOAN IO default value during power up

Fjato
Beginner
537 Views

Dear all,

 

I am using a Cyclone V SoC. Is there a way to set a default value for IOs configured in QSYS as LOAN IOs during power up (preloader and uboot)?

 

Thank you and best regards

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1 Solution
Farabi
Employee
491 Views

Hi, 

 

this solution mention on how to make the loan IO pins to 'tristate' instead of default value which is logic '1' during power up. 

https://www.intel.com/content/www/us/en/support/programmable/articles/000079815.html

 

regards,

Farabi

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5 Replies
Farabi
Employee
506 Views

Hi, 

 

I am Farabi who will be supporting your request. 

Loaner IO will be driven to logic '1' during power up. Unfortunately, there is no feature to set these loaner IO pins to other state like other IO pins. 

You can find details here: https://www.intel.com/content/www/us/en/support/programmable/articles/000079815.html

 

regards,
Farabi

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Farabi
Employee
492 Views

Hi, 

 

this solution mention on how to make the loan IO pins to 'tristate' instead of default value which is logic '1' during power up. 

https://www.intel.com/content/www/us/en/support/programmable/articles/000079815.html

 

regards,

Farabi

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Fjato
Beginner
481 Views

Thank you very much for your answer. I will try to implement the workaround. Can you tell me how to call sysmgr_pinmux_init()?

 

Thank you very much and best regards

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Fjato
Beginner
458 Views

Thanks again, the workaround works. I was able to set the appropriate GPLMUX register in the System Manager Module from the application to 0 to set them to LOAN IOs.

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Farabi
Employee
448 Views

Hi,

 

We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.

 

regards,

Farabi

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