I am using the arduino-tiny cores to program and Attiny2313. The internal 1Mhz setting works fine (I am testing using the blink example), however the 8Mhz clock is not: When this option is selected, the attiny runs 8x slower than it should, the 1 sec blink delay on the above mentioned example becomes 8 seconds. I checked boards.txt and did not find any errors, F_CPU was correctly 8000000L, and I checked all the fuses: they are correct.
Has anybody else had this problem? Any ideas?