BS1 no signal on pin P7!

Anunakin

I just got my BS1 working with serial cable, but I cant get any signal on pin P7...!!!
any hope??

Mike Green

You need to post a schematic of what you have and you need to post the program you're using, both using the Attachment Manager (click on Post Reply).

Anunakin

My code

' PULSOUT.BS1
' This program blinks an LED on for 25 ms at 1-second intervals. Connect an
' LED (active-low) to I/O pin 0.

' {$STAMP BS1}
' {$PBASIC 1.0}


Setup:
  HIGH 7
  HIGH 6
  HIGH 5
  HIGH 4
  HIGH 3
  HIGH 2
  HIGH 1
  HIGH 0

Main:
  PULSOUT 0, 10000
  PULSOUT 1, 10000
  PULSOUT 2, 10000
  PULSOUT 3, 10000
  PULSOUT 4, 10000
  PULSOUT 5, 10000
  PULSOUT 6, 10000
  PULSOUT 7, 10000
  PULSOUT 6, 10000
  PULSOUT 5, 10000
  PULSOUT 4, 10000
  PULSOUT 3, 10000
  PULSOUT 2, 10000
  PULSOUT 1, 10000
  PULSOUT 0, 10000
  'PAUSE 1000
  GOTO Main
  END

All leds on test works, but nothing on pin P7, can this be a hardware problem? PIC16c84 problem?

Mike Green

It could be a hardware problem or a wiring problem. You might increase the PULSOUT time since it's only 100ms. Try a simpler program that only blinks the LED on pin 7.

Anunakin

On DEBUG screen the pin P7 value not changing too [noparse]:([/noparse]

erco

Per Mike, run a simpler program to test the pin, such as:

abc:toggle 7[noparse]:p[/noparse]ause 500:goto abc

and you'll find out pretty quickly using an LED or a multimeter to test it. Output will change every half second.


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·"If you build it, they will come."

Post Edited (erco) : 4/30/2009 6:05:40 PM GMT

Chris Savage

Worst case scenarion you could build a simple test circuit and use the code at the following link. This is how we test BASIC Stamps. Also, in your case one RC circuit is all that would be needed for one pin.

http://forums.parallax.com/showthread.php?p=759839

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Chris Savage
Parallax Engineering

Anunakin

I have one board like this, I tested with a multimeter ... nothing on P7 ...


Can I buy a new PIC16C56, and program this (I have a pickit2 )? if yes where can I find the hex file for it? can I use a PIC16F? I have SMD kit too!

Mike Green

You can't buy a PIC16C56 and program it yourself. The BS1 interpreter program is Parallax's property and they don't make it available to others. They do sell a preprogrammed version for only $9 www.parallax.com/Store/Microcontrollers/BASICStampOEM/tabid/135/CategoryID/10/List/0/SortField/0/Level/a/ProductID/11/Default.aspx.

Anunakin

Thank!! [noparse]:)[/noparse]