Slow starting up

[Acetronics2]

Hi,

Nothing Strange .... Just Shame on me

Alain

PS: F....ing Timeout !!! I begin to think just a Lester's trick to get more posts on the forum counter ...

[lerameur]

Thanks for he program Alain, way better then mine
I changed breadboard, redone the circuit and it works !! go figure....
I tried opersting at 1Mhz to get slower output frequency. used
OSCCON = %01001000 '
but DEFINE OSC 1 do not work.
Do I have to do something else ?
K

[Acetronics2]

Yes ...

Urgent to learn your Holy Manual !!!

Alain

[lerameur]

Hey
belive me I had a look..
page 278 and 279 of the manual states the define and OSCCON values.
The datasheet talks about the OSCCON value which I set. But the define OSC 1 Mhz do not work. Lowest it will go is 4Mhz.
Datasheet stipulates internal oscillation can go as low as 31khz...

[AvionicsMaster1]

I'd like to see the rest of your code but is OSCCON = %01001000 correct? Shouldn't it be OSCCON = %01001110? I'm assuming you're using an internal oscillator, should be stable and it should be used as system clock. I don't know why 4Mhz worked but, if that's all you changed between compiles, then try that.

This is for a 16F88 and is on page 40 of the datasheet.

[lerameur]

ya that works, that bit at position 1. Ithink that did it. thanks

[mackrackit]

Bits 0 through 3 of OSCCON are read only?

[lerameur]

Actually it compiles , but after careful testing, the frequency is all over the place when using only OSCCON = %01001110..

[AvionicsMaster1]

Bits 0 through 3 of OSCCON are read only?

I'm curious what do you mean? Bits 0 to 3 set status bit, oscillator stability and mode select. Can't these be set at beginning of code?