Brownout Voltage setting in application code

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djoshi
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Posted by djoshi: Sat. Oct 24, 2020 - 08:33 PM
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Hi All

 

I have always set the brownout voltage using the fuse setting.

 

I need to change this one some remote devices, is there any possibility this be set from my application?

 

Thanks

 

Thanks

Regards

DJ

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AVR Microcontrollers, AVR and XMEGA
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ki0bk
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Posted by ki0bk: Sat. Oct 24, 2020 - 08:36 PM
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No!

 

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djoshi
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Posted by djoshi: Sat. Oct 24, 2020 - 08:53 PM
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Ok, no problem. I will need to work around it,

Thanks

Regards

DJ

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ki0bk
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Posted by ki0bk: Sat. Oct 24, 2020 - 08:58 PM
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Perhaps, if you explained the big picture of the project, a solution can be found, why would anyone need to change the brownout voltage level of the micro?

This is a classic XY problem, so tells us what your attempting to do, not what your attempted solution is....

 

Jim

 

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djoshi
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Posted by djoshi: Sat. Oct 24, 2020 - 09:26 PM
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Hi Jim

 

Some of my boards are set to 2.8V and all my new boards are set 2.4V.  I was trying to keep everything uniform.

 

 

Thanks

Regards

DJ

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ki0bk
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Posted by ki0bk: Sat. Oct 24, 2020 - 09:32 PM
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Thanks for the clarification, which AVR are we talking about, most classic AVR's only have one setting in the 2.xV range, one would not be able to choose between 2.4 and 2.8v?

Maybe the newer ones will let you set a specific level. 

Jim

 

 

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Wealth is attracted, not chased! 

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djoshi
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Posted by djoshi: Sat. Oct 24, 2020 - 09:54 PM
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Hi Jim

 

I am using tte Atxmega256a3bu

Thanks

Regards

DJ

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avrcandies
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Posted by avrcandies: Sat. Oct 24, 2020 - 11:14 PM
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Some of my boards are set to 2.8V and all my new boards are set 2.4V.  I was trying to keep everything uniform.

Is there anything to keep from setting all to 2.4V?  It's not a very precise voltage anyhow (which is more of an aside, since that implies any setting might be too sloppy).

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Last Edited: Sat. Oct 24, 2020 - 11:15 PM
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djoshi
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Posted by djoshi: Sun. Oct 25, 2020 - 08:59 AM
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Yes the devices that are set to 2.8V, are a distance from my location. I was hoping to set brownout in my firmware. 

Thanks

Regards

DJ

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