[SOLVED] Problem in setting the Baud Rate in AVR...

[ismbn]

Which programmer software do you use?

this is the programmer Sir it is working on USBasp programmer

Ismail

 

[alexan_e]

Use this screen to set the clock to external crystal 1MHZ and above

 

[ismbn]

sorry for the stupid Question....
But where is this window i am not gating it??

Ismail

 

[alexan_e]

And I'm not using that software :grin:

There should be a menu to access that screen (chip or settings?), I found the screen https://extremeelectronics.co.in/avr-tutorials/gui-software-for-usbasp-based-usb-avr-programmers/

 

[ismbn]

nothing is here i was serching that only is this window can do this

 

[alexan_e]

What about the configure avr clock in the lower left corner of your image, is it clickable?

 

[ismbn]

yah... sorry this is the new version of extreme Burner software... in the previous it is not there...

i am checking it Sir what to set in in start up time and Oscillator option

 

[madhusuthanan]

hi ismail

have you check itthe hardware?

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did you change the clock source.

 

[ismbn]

I am extremely sorry i was logoff...

The thing is my hardware is stopped working. I think my uC is not with us now ... alas... I was just reaching to the destination and this happened...
By the way i have ordered for the fresh-one i will get is to evening and i will start working on it.....


Thank you so much all your help... Sir alexan_e and Sir madhu you people are so help full..
If people like you all are there, no student will feel lonely in the World Of Electronics, no buddy will hate Electronics and IMPOSSIBLE like word will vanish from the dictionary... And yes if there is any further difficulty i'll defiantly come back to you people... if any one has any difficulty in this topic can write it here also... We will try to find the problem... Thank you ones again...

Faithfully
Mohammed Ismail

 

[alexan_e]

Did this happen while trying to write new fuse values?
Any chance you have applied wrong values to the fuses?
If you select the wrong source or disable ISP or reset this can happen.

 

[ismbn]

may be sir i made the configure AVR clk and clicked on write all....
and i didn't got the response.
after that i clicked the check box given below the low fuse and high fuse and written by the option given in the on the same form

no response was coming from that time the previous program is also not working Sir...
Ismail

 

[alexan_e]

You have probably locked yourself out using the wrong setting.
If you have disabled ISP or reset then you need a parallel programmer to unlock it (or jtag I think)
If you have just applied a wrong setting like external clock then all you need is to apply an external clock.

A device like **broken link removed** can restore a device that has been set with wrong fuses.

 

[ismbn]

yah i think you r correct...
have seen the that software sir...
because i can not communicate with USBasp people...
ismail

 

[madhusuthanan]

hi ismail,

do you communicate with your project?

 

[ismbn]

hello sir,
Good Morning...
please suggest me the fuse bit value
Ismail

 

[alexan_e]

You can use this calculator https://www.engbedded.com/fusecalc

 

[madhusuthanan]

do you using isp programmer?

 

[ismbn]

@madhu
Yes sir... i am using ISP programmer...
USBasp

Ismail...

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@alex...
Sir i have seen the site... but few thing is not understandable...
1) What is Brown-out detection
2) Boot Reset vector
3) CKOPT fuse
and some startup time is also mentioned there...
Guide me please...
Ismail

 

[alexan_e]

Have you read the datasheet?

Basically you should care about the CKOPT and CKSEL fuses which can cause problems if set incorrectly, the others can be set depending on your needs.

Also don't change RSTDISBL and SPIEN because you can lock yourself out of ISP

 

[madhusuthanan]

1) Brown-out detection (BOD), which monitors supply voltage level during operation
2) all vectors are reset at a boot
3) clock freq fuse.