The clock speed setting is problematic if you have a 20Mhz crystal on the 1284P
you will have to play with the clock speeds to find which one works.
Or you can change the fuse bit and use the internal 8mhz RC while programming
then change back after programming is complete
at lower cpu clock speeds I have found it more stable.
Regards Paul
TopicOwner check that use version 2076.
In history.txt attached to version 2079 you can read "- usbasp programmer updated. chosen clock frequency will work. "
I dont know why someone want to use older Bascom version but then I will use some other tools to set fuse bits.
..and some of this chinese USBasp have old firmware that even not handle set CLK by software so you must reprogram it with soft from fishl.de site software.
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