I have several ATtiny85/85 chips that have a 20MHz internal clock. Unfortunately the Arduino Code project only has board definitions for 1,8 and 16MHz boards. Since they are set by default to run at 1MHz most of my projects have been using the chips at 1MHz. However recently I was experimenting and tried to burn the 8MHz bootloader to a 20MHz ATtiny84 and 85. The chips have become unresponsive and so my first question is can you put an 8MHz bootloader on a 20Mhz ATtiny and if so does anyone have any ideas about what might have gone wrong since it did not work for me? Thanks in advance for your help.
please ignore this message. I tried everything again and it worked.