doper: programming only with internal oscillator
Posted: Tue Dec 30, 2008 9:03 am
Hello Forum!
When I'll programm my targetboard from myavr it will only be successfull with running the target at internal oscillator with 1MHz.
(default setting, the programmer works fine)
When the external crystal is activated 3,6864MHz the programming breaks with following error:
In Readme.txt stands
The programming speed must always be higher then 1/4 CPU-Speed.
But 100kHz is less than 1/4 CPU...
Please bring light in my confusion?
THX
plinepa
PS: sorry for english, the last lesson was over 25years
When I'll programm my targetboard from myavr it will only be successfull with running the target at internal oscillator with 1MHz.
(default setting, the programmer works fine)
When the external crystal is activated 3,6864MHz the programming breaks with following error:
Code: Select all
Writing | avrdude: stk500v2_command(): unknown status 0x80
avrdude: stk500v2_paged_write: write command failed
################################################## | 100% 0.38s
In Readme.txt stands
Setting ISP clock
AVR-Doper uses a moderate ISP clock (~ 100 kHz) after power-up
The programming speed must always be higher then 1/4 CPU-Speed.
But 100kHz is less than 1/4 CPU...
Please bring light in my confusion?
THX
plinepa
PS: sorry for english, the last lesson was over 25years