[SOLVED] Messed With ATMega8 SPIEN setting??

[kasamiko]

Ok, I'll try to clock this first EXTERNALLY...

BTW what is the DEFAULT ATMega8 setting when it is brand new or never programmed??

 

[alexan_e]

The factory setting is internal RC 1MHz , fuses CKSEL3..0 = 0001 (0=programmed , 1=unprogrammed)
The external clock should be connected to XTAL1.

Alex

 

[kasamiko]

The factory setting is internal RC 1MHz , fuses CKSEL0..3 = 0001 (0=programmed , 1=unprogrammed)
The external clock should be connected to XTAL1.

Alex

Like this??



So I need to set this fuses then add a clock source (which PIN? 9 or 10) to restore my mega8 as good as new?

 

[alexan_e]

No, sorry I had it wrong in the previous post (i wrote it inverse CKSEL0..3).
The factory setting is internal RC 1MHz , fuses CKSEL3..0 = 0001 (0=programmed , 1=unprogrammed)

so it should be

CKSEL3 = checked (0)
CKSEL2 = checked (0)
CKSEL1 = checked (0)
CKSEL0 = unchecked (1)

Alex

 

[kasamiko]

No, sorry I had it wrong in the previous post (i wrote it inverse CKSEL0..3).
The factory setting is internal RC 1MHz , fuses CKSEL3..0 = 0001 (0=programmed , 1=unprogrammed)

so it should be

CKSEL3 = checked (0)
CKSEL2 = checked (0)
CKSEL1 = checked (0)
CKSEL0 = unchecked (1)

Alex

Even expert got mixed up...


I think this is the correct setting now...

 

[alexan_e]

Yes this setting is correct.

Don't think that I remember the setting from memory, I just check the datasheet for every setting I need, all the settings are listed there so you have to start using it, the picture of the fuse settings in post #3 is from the datasheet and the defaults are also described in the datasheet.

Alex

 

[kasamiko]

I was expecting that AVR behaves like PIC...where config/fuses are set during compile..

I never encounter headaches programming PIC..

 

[owaisnajam]

Hi,

Check my findings at https://www.edaboard.com/threads/131804/. May be it will help you. Goodluck.

With kind regards,
Owais