[AVR] attiny13 and stk500 problem

[reza05]

hello;
i have two attiny13 and programmed them by stk500 with internal 128 khz frequency.for first ic i have enabled clkdiv8 [dividing clock by 8]
and after programming ic is working correctly,but i cant program it again,actually both codevision and atmel studio dont identify it.
then i have programmed the second ic and disabled clkdiv8 and compiler had no problem to identify it,but finally i have enabled clkdiv8 for this ic too,and now i couldnt use both of them for program.
could i recovery the clkdiv8 fusebit by this stk500?
compiler dont identify ic even by minimum connection frequency

 

[KlausST]

Hi,

You have to slow down programming clock frequency.
I think this solves your problem. Try to slow it down by the same factor "8" or more.

Klaus

 

[reza05]

Thanks
But I use minimum programming frequence, does not identify attiny13