Atmega6450P bootloader

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#1
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Hi all

I'm new at programming "raw" AVR, used arduino for some time and now i tried working with AVR in Atmel studio. I'm having some issues programming the device. I can't seem to make the correct fuse configuration.

 

The other problem is related to the bootloader, I was trying to burn a bootloader to enable the MCU to auto-programm itself by serial (UART) but it didn't go well... 

 

Someone has a working bootloader for this microcontroller?

Or at least a fuse configuration for AVRdude to burn my firmware.

 

Thanks a lot.

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Last Edited: Mon. Nov 12, 2018 - 10:04 AM
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If (as you must) you already have an ISP programmer that you'll need in the first place to program a bootloader in then why bother with a bootloader at all? Why not just use ISP all the time. I think you may be looking at this through "Arduino goggles"!

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Hi, I'm looking for a bootloader due to the final use I'd like to have. I would like to be able to update the firmware with USB2Serial (FT232) chip that is used for communications right now.

 

And ISP is presenting the "fuse" problem... =(

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Demolick wrote:
the "fuse" problem

 

Lots of Freaks use this site for fuse info:  http://www.engbedded.com/fusecalc/

 

What part do you not understand?

 

Jim

 

Click Link: Get Free Stock: Retire early!

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The MCU in question is 6450P and it seem to differ from 6450

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Demolick wrote:
it seem to differ from 6450
   How?

 

Click Link: Get Free Stock: Retire early!

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Atmel app note AR534 talks about migration from M6450 to M6450P, no mention of any fuse changes, the signature of the device changes.

 

Jim

 

Click Link: Get Free Stock: Retire early!

share.robinhood.com/jamesc3274

 

 

 

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Hmmm, it's kinda need of rare in that case.
I tried programming the MCU and it didn't go well. It glitches out and than tried to "work"... With nosing similar to 16Mhz clock that it has installed.
I'll look in to it again on Monday.
Thanks for the reply

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"Didn't go well" isn't much of a fault report.

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The clock of the MCU seemed to be like 60Hz instead of 16MHz... I don't really have a report right now... The problem is that I had no errors while programming or burning...

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Hi all,

Thank you for your help.

 

I've finally found the problem... It was the oscilator circuit... Once I've replaced it, the 6450P goes buttery-smooth with AVRDUDE setup like 6450.

 

BR,