output's on as power is supplied

[tazntex]

I read in the PicBasicPro manual about using the branch as you suggested,
branch b3, [outr1,outr2,outr3,outr4,outr5,outr6,outr7,outr8,ou tr9,outr10,outr11,outr12]
I just compiled and tried the circuit seems to work fine. I am curious about why using many "If, Then" statements is not a good way of doing things.

Thanks again, as you may have guess I new into this and still learning .

[skimask]

I just compiled and tried the circuit seems to work fine. I am curious about why using many "If, Then" statements is not a good way of doing things.

A lot of If/Then statements, all back-to-back, just kinda looks ugly, and makes it a bit harder to read. You have to scroll up, scroll down, move all around. With the BRANCH, it's all on one line. It doesn't neccessarily save memory, code, or whatever, it just looks better.

[mister_e]

Never trust a PIC at boot, it's output level is hard to predict. you should set it yourself at the top of your code and add a little delay

    PORTA = 0
    PORTB = 0    
    trisa = %00010000
    trisb = %00000000
    PAUSE 50 ' settle time 

loop:

It's not a bad idea to enable the Power Up timer in your Configuration fuses as well.

@       __CONFIG _XT_OSC & _PWRTE_ON & _WDT_OFF & _CP_OFF

http://www.picbasic.co.uk/forum/showthread.php?t=543

[Darrel Taylor]

It's not a bad idea to enable the Power Up timer in your Configuration fuses as well.

@       __CONFIG _XT_OSC & _PWRTE_ON & _WDT_OFF & _CP_OFF

I've never really had problems with outputs coming on at power-up. They always seem to be in INPUT mode.

But assuming you did need to set them manually, wouldn't the Power-ON timer just make it that much longer till they actually got set to output.

Just a thought.
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[mister_e]

If the hardware don't care about the 'Tri-State' or 'High impedance' level, yes...about 72mSec longer.

Unfortunately there's no Brown-Out detect on this one, we have no schematic and we can't measure the PSU behaviours and rise time from where we are.. hard to have the ultimate solution.

Maybe i misunderstood the original problem...

I now have everything working momentary now but at times when I apply power some if not all relays activate.

[Darrel Taylor]

If the hardware don't care about the 'Tri-State' or 'High impedance' level ....

Right, and that could be a problem.

Here's an idea for Taz.
Try running this program ...

STOP

Yes, that's the whole program.

It'll leave the pins in Hi-Z mode.

Then see if any relays come on?
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