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strange error with microcontroller
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Topic: strange error with microcontroller (Read 2370 times)
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superchiku
Supreme Robot
Posts: 952
Helpful? 5
cooll
strange error with microcontroller
«
on:
April 05, 2008, 04:12:02 AM »
i bought this new atmega16 which worked great until this day when i tried to progam it i got this unusual error
device signature invalied : 0xffff
i checked my power supply and connection and everything seemed to be allright, i used another mcu in its place and it worked great with the same state of connections and power.
Have i blown this microcontroller??
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JAYDEEP ...
IT AND ROBOTICS ENGINEER
"IN THE END IT DOESNT EVEN MATTER"
Admin
Administrator
Supreme Robot
Posts: 11,703
Helpful? 173
Re: strange error with microcontroller
«
Reply #1 on:
April 06, 2008, 11:33:18 AM »
Lower the programmer ISP frequency to something really low. If the AVR is set to a low frequency, but the programmer is set too high, you could get invalid device signatures.
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superchiku
Supreme Robot
Posts: 952
Helpful? 5
cooll
Re: strange error with microcontroller
«
Reply #2 on:
April 06, 2008, 11:37:25 AM »
no the frequency is right coz i programmed another mcu using the same hardware,no problems whatsoever
only this one gives problem
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JAYDEEP ...
IT AND ROBOTICS ENGINEER
"IN THE END IT DOESNT EVEN MATTER"
benji
Supreme Robot
Posts: 830
Helpful? 0
Re: strange error with microcontroller
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Reply #3 on:
April 09, 2008, 02:51:27 AM »
if the whole thing works by trying another similar micro then propably your atmega16 is blown up,,,
did you change any fuses that you dont know about?
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good ol' BeNNy
superchiku
Supreme Robot
Posts: 952
Helpful? 5
cooll
Re: strange error with microcontroller
«
Reply #4 on:
April 09, 2008, 02:52:38 AM »
as i told bfore the changes in the fuses were similar with both mcu wone works another doesnt so i guess its just gone
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JAYDEEP ...
IT AND ROBOTICS ENGINEER
"IN THE END IT DOESNT EVEN MATTER"
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strange error with microcontroller