RE: [avr-gcc-list] uisp - atmega16 "dead" after setting high/low fuses

[Weddington, Eric]

Uisp is not maintained anymore. I would suggest that you use avrdude, which can 
also be found on the Savannah web site.

> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On
> Behalf Of Rieker Flaik
> Sent: Saturday, February 26, 2011 1:03 AM
> To: address@hidden
> Subject: [avr-gcc-list] uisp - atmega16 "dead" after setting high/low
> fuses
> 
> Hi,
> 
>  I did a ATMega16-Hobby-Project a while ago. Today I changed the source
> code, compiled it and tried to upload the hex-file into the chip. But it
> wasn't possible because uisp couldn't even detect the chip-model. "Maybe
> I falsely set some Lock-Bits a while ago", I thought and took a second
> ATMega16 from my cubicle of electronic equipment and tested it with:
> 
> uisp -dlpt=/dev/parport0 --rd_fuses -dprog=dapa
> 
>   I remember that it showed the correct chip-model and the default
> values for all fuses.
> 
>   In my design I use a external crystal. So I tried to set the
> fuse-bytes accordingly:
> 
> HIGH_BYTE:
>   7 OCDEN   "On Chip Debug"        1
>   6 JTAGEN  "JTAG"                 1
>   5 SPIEN   "Serial Programming"   0
>   4 CKOPT   "Oscillator Option"    0
>   3 EESAVE  "EEPROM is preserved"  1
>   2 BOOTSZ1 "Boot Size"            0
>   1 BOOTSZ0 "Boot Size"            0
>   0 BOOTRST "Reset Vector"         1
> 
>         0b11001001==0xC9
> 
> LOW_BYTE:
>   7 BODLEVEL "Brown-out"           1
>   6 BODEN    "Brown-out enabled"   1
>   5 SUT1     "Start-up Time"       1
>   4 SUT0     "Start-up time"       1
>   3 CKSEL3   "Clock"               1
>   2 CKSEL2   "Clock"               1
>   1 CKSEL1   "Clock"               1
>   0 CKSEL0   "Clock"               1
> 
>         0b11111111==0xFF
> 
> did a:
> 
> uisp -dlpt=/dev/parport0 --wr_fuse_h=0xC9 --wr_fuse_l=0xFF -dprog=dapa
> 
>  and the device was gone :-(
> 
> Even a "uisp -dlpt=/dev/parport0 --rd_fuses -dprog=dapa" doesn't work.
> 
> What could be the problem?
> 
> Thanks,
>  rieker
> 
> 
> 
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