yes i have tried change the first line to low with the result that the led is not lit.
thats why i get a feeling that the loop gets stuck after the first line.
and i have tried using int led=4.
still not working
now im going to try a another attiny.
gaggenau:
now im going to try a another attiny.
Sounds like a plan !
well now i have tried another attiny and i have the same problem.
tried a uno as programer instead of the duemilanove.....no luck
I disassembled everything and restarted over . but i got the same result just won´t blink just stay in its status is has on the first line in the loop.
this is starting to get a little bit frustrating now. any more suggestions?
gaggenau:
this is starting to get a little bit frustrating now. any more suggestions?
Perhaps a silly question but not sure if you've covered it: did you do the "burn bootloader" step to make sure it's running at that clock speed?
Also, you can try what That1Guy99 did to fix it by installing another copy of Arduino IDE (say, 1.0) and reinstalling the core files and modifying the boards.txt with everything in the beginning of this Topic.
@strykeroz - I found the "burn bootloader" isn't necessary with core13 for setting the clockspeed because the high and low fuses come from the boards.txt. I just select the 128kHz board and upload the sketch (Don't even have to select Upload via Programmer).
first i tried without the bootloader and then with. same result.
other things i tried was updating arduino ide to 1.0.1
reinstall core13 cores
im going to try to reinstall it on another mac that never had the arduino on it.
im not going to give up. programing a attiny13a with the blinky sketch is not rocket science.
guys! thanks for helping me out.
Just an FYI, when you install other versions of Arduino IDE, it creates a new folder and an isolated version with all the aminities of that version but isolated from other versions other than the Documents\Arduino directoryand the driver for USB2TTL.
Good luck!
spcomputing:
@strykeroz - I found the "burn bootloader" isn't necessary with core13 for setting the clockspeed because the high and low fuses come from the boards.txt. I just select the 128kHz board and upload the sketch (Don't even have to select Upload via Programmer).
nice one. I defer to your experience on that as I have settled on ATTiny85 as pretty much my weapon of choice 
problem solved! thanks for the help!
the solution was to do a fresh install of the IDE and the core on a another mac.
now the biggest problem is to fit the code in to that tiny little memory of the attiny13 i guess thats why the attiny 85 is more popular.