Need help in code

[Acetronics2]

Hi, Camolas

Welcome here ... and do not be sorry for your English.

YOU made this effort ... some don't dare.

Back to our subject, Her you won't find "already cooked" code ... except if you do a search over the forums ... for existing applications.


The habit is : YOU try to make something run ( by the way learn how the processor works , and which PicBasic commands you have to use ....) - and then , we help you.


The first thing you'll have to do is CONFIGURE your processor:

- Which will be the Inputs and Outputs ?

- How to disable Unwanted features like comparators and ADC ... that could interfere with PORTs

for that ... the '877 is not the simplest ! ... would you own an old 16F84 ??? ( not compulsory - do not buy one ... but would help you a lot ! )


And, once that done, begin to translate your " text" program into successive elementary PbP ( PicbasicPro ...) commands.

So, you'll need :

1) the 16F877a Datasheet ( from Microchip site )
2) the PicbasicPro Manual corresponding to your release ( which one ? 2.50 ? )
3) some paper sheets to note the 877 registers and data for the config.
4) a good pencil and rubber
5) a HUGE coffee cup (hot is better ...)
6) LOTs of patience

...

Welcome aboard and read you soon.

Alain

[JD123]

Alain, you forgot one...

7) A swear jar

You too can retire rich!

Camolas, in a month's time you should have some code. Post it so we can take a look at it.

[camolas]

Hi,

Thanks for the starting hellp

PicbasicPro 2.50





My code

@ DEVICE pic16F877A, WDT_ON ' Watchdog Timer
@ DEVICE pic16F877A, PWRT_ON ' Power-On Timer
@ DEVICE pic16F877A, BOD_ON ' Brown-Out Detect
@ DEVICE pic16F877A, LVP_OFF ' Low-Voltage Programming
@ DEVICE pic16F877A, CPD_OFF ' Data Memory Code Protect
@ DEVICE pic16F877A, PROTECT_OFF ' Program Code Protection
@ DEVICE pic16F877A, WRT_OFF ' Flash Memory Word Enable

TRISB.0=1
TRISB.1=1
TRISC.7=0
LED var PORTC.7

inicio:

if PORTB.0 = 0 then
GOSUB liga
else
low LED
endif
goto inicio

liga:
if PORTB.1=1 then
high LED
PAUSE 200
low LED
else
low LED
endif
goto inicio


end

[JD123]

At first glance, replace the "goto inicio" at the end of the program with "return" (it was called under a "gosub").

[camolas]

I got 2 problems 1 de led dont turn of afther the periode and 2 i need the code to do like a cicle and stops when led off and only start again when "switch" 1 is on again.

[skimask]

I got 2 problems 1 de led dont turn of afther the periode

Fixed by post above?

and 2 i need the code to do like a cicle and stops when led off and only start again when "switch" 1 is on again.

Ok, so how do you determine if the LED is off?
How do you determine if 'switch 1' is on again?
If you can answer those 2 questions, then you should be able to write your code.

[camolas]

Fixed by post above?


Ok, so how do you determine if the LED is off?
How do you determine if 'switch 1' is on again?
If you can answer those 2 questions, then you should be able to write your code.

Fixed by post above?


Ok, so how do you determine if the LED is off?
How do you determine if 'switch 1' is on again?
If you can answer those 2 questions, then you should be able to write your code.

Hi, not fixed.


determine LED - i do not now if i anderstand you well (bad Inglish mine) but by having switch2 pressed led if off. (or if switch1 pressed is off to)

'switch 1' - I only put this switch to try to stop the code there from looping and looping because i only want that led is high 1 time at the time (just when switch1 be pressesd again), then wait for switch2 to be not pressed.

Thanks