Circuit diagram for ATmega328p

[JAMAL JIMI]

Can anyone please give me a circuit diagram of the minimum circuit connections for Atmega328p????????????????
Can I use this microcontroller with out xtal and external reset circuit and with out programming the fuse bits????

 

[goldsmith]

Can anyone please give me a circuit diagram of the minimum circuit connections for Atmega328p????????????????
Can I use this microcontroller with out xtal and external reset circuit and with out programming the fuse bits????

Hi JAMAL JIMI
I'm not a programmer but as i've a programmer in my group i see what he is doing . he simply refer to the datasheet of that MUC and i saw it's dealing with everything in detail !

Best Wishes

Goldsmith

 

[JAMAL JIMI]

No there is no circuit diagram in the datasheet........

 

[goldsmith]

No there is no circuit diagram in the datasheet........

But in application notes yes ! and in complete datasheets also yes !

 

[JAMAL JIMI]

I am consulting the Atmel's datasheet can you please tell me on which page the circuit is drawn???

 

[jayanth.devarayanadurga]

What circuit you want? Internal circuit of AVR MCU? Nobody can give you.

 

[JAMAL JIMI]

Dear.............
I have programmed an ATmega328p on the simulator and its working fine on the simulator but not working on the bread board.........:sad:
What can be the possible reason???

 

[wp100]

Hi,

You can see a good working circuit diagram of a 328 here.
**broken link removed**

When using a breadboard you can often get poor connections on the fine leads of the crystal and its caps, fitting thicker leads to those 3 parts and keeping all wires as short as possible will help.

Have you got all your Fuses correctly set ?
http://www.engbedded.com/fusecalc

 

[goldsmith]

Dear.............
I have programmed an ATmega328p on the simulator and its working fine on the simulator but not working on the bread board.........
What can be the possible reason???

it can be gang of problems ! which frequency of clock you're using there ? try to do something as follows :
1= add a 100uF capacitor as near as possible with the supply pins of your MCU .
2- if your frequency is high , bread board simply can't suit the aim ! ( it's equivalent circuit instead of HF components of your clock pulse )
3- try to investigate on , connections of your wires on your bread board !

Good Luck
Goldsmith