Too many Hello's

Is the watchdog restarting it?

Andrew,

Thanks for replying!

I've actually got this programmed with the Watchdog timer off. One thing though - I have the HD44100 driver chips as part of the module. Do you think this may have something to do with it?

Ozzy

ozzy a =E9crit :

Too many Hello's is better than too many goodbye's ;o)

Serious though, if it isn't the watchdog then it is probably the power supply. Did you put decoupling caps everywhere? It could also be a bug in your program... writing an address that you didn't intend to or running code that isn't part of your program.

Thanks, Jenalee K.

Is it a C program ? If so, the C standard startup code will call main() if it ever exits, resulting in a loop. You should make sure main() never exits or add a while(); at the end.

vic

There is probably some error in your code.

Perhaps it's the the way you have initialised the display controller or something went wrong when you cut and pasted the example code and modified it to do what you want it to do.

Maybe the code sends the 'Hello' and expects to get some sort of acknowledgment from the display and, if it doesn't get it (because the display is broken or that part of the code is broken) it sends another 'Hello' and so things go on.

DNA

Wouldn't it be easier just to show your code.

We can not guess at what we can not see.

A schematic as well.

donald

Thanks for all your replies, but I must say I cocked up big time!!

The picallw software has a little tick box to the right hand side that I did'nt bother with. I had assumed that by clicking the config button (at the bottom) and then setting watchdog to off, would do the trick. These liitle buttons are only initialised when the ticks on the RHS are set.

I guess I get to face the corner & wear the pointy hat then......

Thanks for all your replies, but I must say I cocked up big time!!

The picallw software has a little tick box to the right hand side that I did'nt bother with. I had assumed that by clicking the config button (at the bottom) and then setting watchdog to off, would do the trick. These liitle buttons are only initialised when the ticks on the RHS are set.

I guess I get to face the corner & wear the pointy hat then......

Thanks for all your replies, but I must say I cocked up big time!!

The picallw software has a little tick box to the right hand side that I did'nt bother with. I had assumed that by clicking the config button (at the bottom) and then setting watchdog to off, would do the trick. These liitle buttons are only initialised when the ticks on the RHS are set.

I guess I get to face the corner & wear the pointy hat then......

You sent the last message three times. May be you got stuck in another loop .... :( Bad day!

Joer

"ozzy" schreef in bericht news: snipped-for-privacy@m73g2000cwd.googlegroups.com...

I probably resets when main() terminates. I've seen it many times.