How to use For Next Loop to run sequence light ?

[Bracer]

WOW Acetronics....
You are so cool!

Make PortA and PortB's 0~2 lights up.
PORTA = PORTA | %00000111
PORTB = PORTB | %00000111

Make PortA and PortB's 0~2 lights Down.
PORTA = PORTA & %11111000
PORTB = PORTB & %11111000

Completely works...wow...in just one line you have set 3 lights from PortB to light up...

It suddenly makes this whole "High PortB.0" look barbaric!
I don't exactly know "How" you set it, but I did try to experiment, I went ahead and try to make the light goes from the outside two lights to the inside one light, basically:

High PortB.0
High PortB.2
Low PortB.1

Pause 500

Low PortB.0
Low PortB.2
High PortB.1

Pause 500
Low PortB.0
Low PortB.2
Low PortB.1

Pause 500

But me...trying to "copy" your way, not knowing what I am doing, do this:

PORTA = PORTA | %00000101
PORTB = PORTB | %00000101
Pause 500
 
PORTA = PORTA & %00000010
PORTB = PORTB & %00000010
 
pause 500

Let's just say the lights acted weird, I have no idea what "|" in the code does either than it's probably "Or" ?
Not to mention "&" either than C's "And" ?

But they are single and not in pairs...some sort of bit shifters ?

Must trying to understand this concept...one line to control all Port Outputs....so powerful...but so mysterious to me...

Anyway thanks Acetronics, I use a 470 ohm for the LEDs under +6V

[Acetronics2]

But me...trying to "copy" your way, not knowing what I am doing, do this:

PORTA = PORTA | %00000101
PORTB = PORTB | %00000101
Pause 500
 
PORTA = PORTA & %00000010
PORTB = PORTB & %00000010
 
pause 500

PORTA = PORTA | %00000101 = Read PORTA and set to 1 ports A0 and A2

PORTA = PORTA & %00000010 = Read PORTA and clear ports A0 and A2

you use " | " ( OR ) to SET portspins and & ( AND ) to clear them ... but no mix allowed

you can try ...

 
PORTA = PORTA | %00000101
PORTB = PORTB | %00000101
.
.
.
.
 
Subroutine:
 
PORTA = PORTA ^ %00000111 ' FLIPS the bits with a " 1 " 
PORTB = PORTB ^ %00000111
 
pause 500
GOTO Subroutine

see your manual " Bitwise Operators " section $4.16.17

Alain

[Bracer]

Thank you Acetronics, thanks to you, I now understand everything I need to understand for my Build from scratch Tricorder Project.

This is the note I have compiled based on what you have explained.


'Make them all outputs, Remember Pin 4, PortA.5 will always be Input Only
'And Pin 3, PortA.4 needs a pull up resistor.

'Understand that these two lines will make High, all Pins
'meaning the LEDs will ALL light up.
TRISA = 0 'Set all PortA Pins as Outputs
TRISB = 0 'Set all PortB Pins as Outputs

'Make All PortA and PortB's lights Down, the "&" here means "Clear".
PORTA = PORTA & %00000000
PORTB = PORTB & %00000000

Make PortA and PortB's .0 lights up, the "|" here means "Set".
PORTA = PORTA | %00000001
PORTB = PORTB | %00000001

[This is a powerful concept Bracer, with this you no longer need to do the:
High PortB.0 crap.
A single line to clear all and a single line to set all, the ONLY THING YOU MUST
take note is to line up your LEDs from PortB.7 to PortB.0 in your device instead
of 0 to 7, this is because as you can see, this one line code is backward, setting
the last digit to 1 actually set Port*.0 and %10000000 sets Port*.7 to high.
So to make it easier for you to visualize your
lights animations [I'm repeating myself here], set your LEDs on your device from
Port*.7 [Or whatever is the highest port number you use for output] to lowest.
]

[This also means that setting:
PORTA = PORTA | %00100000
is useless because PortA.5 [Pin 4] can only be use for input detection,
setting it to high means nothing.
]

You can see my Tricorder project here:
http://www.bracercom.com/wip/content...der/index.html

It's still very much in WIP but I will be sure to give you credit when I've come to the electronic part of the Tricorder.

[Acetronics2]

You can see my Tricorder project here:
http://www.bracercom.com/wip/content...der/index.html

It's still very much in WIP but I will be sure to give you credit when I've come to the electronic part of the Tricorder.

Hi, Bracer

May be ... you should have a look to NOKIA graphic screens ...costless and ... marvellous color effects ...

Alain

[Bracer]

NOKIA graphic screens with 16F628a ?

Wow...I have like no idea how...

I wouldn't even know how to begin with that.

[Archangel]

Try this Google link to search the forum, I think it has been done in here already.
http://www.google.com/custom?hl=en&c...ch&sitesearch=