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Topic: How to hardware reset ATMEGA328 ? (Read 4211 times) previous topic - next topic

Kaniiisek

Hello,

I need to reset ATMEGA328, when you combine the reset pin to the ground so nothing happens, I need to reset the same as on the Arduino program to be started again.

http://imgur.com/a/6OeWT

I connect RESET pin to GND - nothing.

septillion

Then you do simply something wrong or you managed to set the fuses to have no reset.

And why do you need to reset it? There are barely reasons to do so...
Use fricking code tags!!!!
I want x => I would like x, I need help => I would like help, Need fast => Go and pay someone to do the job...

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MarkT

I presume you only connected it to ground temporarily...  While low the chip is held in a low power
state, it starts running again when the reset pin is released.  The reset pin may need a pull-up
resistor in an noisy environment to strengthen the internal pullup, suggest 4k7 for that.
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

Kaniiisek


I gave 4k7 but still can not restart the program.

septillion

Maybe give us some details?

Does it just keeps running?
Stand alone IC?
Bootloader?
Did you burn fuses?
If yes, which?

And of course, why do you want to...
Use fricking code tags!!!!
I want x => I would like x, I need help => I would like help, Need fast => Go and pay someone to do the job...

NEW Library to make fading leds a piece of cake
https://github.com/septillion-git/FadeLed

Kaniiisek


I need to be able to perform the same function as the Reset button on the Arduino. I'm AU-ATmega328P. Fuse is set to:

CF - Lock
FF - Fuse low
DE - Fuse High
05 - Fuse ext.

septillion

Sorry, I'm out. Only answering the easy questions is not how it works...
Use fricking code tags!!!!
I want x => I would like x, I need help => I would like help, Need fast => Go and pay someone to do the job...

NEW Library to make fading leds a piece of cake
https://github.com/septillion-git/FadeLed

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