Help from an admin or anyone familiar with the PD board and the BS2p40 chip?

kingspud · 2006-06-26 15:11

Hello all,

This is a continuation from a previous post which basically asks...

Can anyone please send me some code for the BS2p40 chip to flash two LED's on the Professional Development Board and have them connected to one main port and one aux port!

I just got my 40 chip and I thing·it maybe a bad one or I am doing something wrong on the hookup!

I need some code that can test each port on the main and aux sides that will flash some LEDs to prove the chip is working correctly!

Also I need the correct hookup instructions for the code!

The chip identifies but thats it.

Thanks in advance!

Joe

Chris Savage · 2006-06-26 15:14

Joe,
·· In your previous thread (linked below) members trying to help you asked you questions in an attempt to help you in your original thread.· Please supply the requested information so we·can try·to help you further.· One other thing you can do is check out the StampWorks manual (linked below) which contains examples of blinking an LED on the PDB.· Your code would essentially be:

DO
  HIGH 0
  PAUSE 500
  LOW 0
  PAUSE 500
LOOP

You can connect the P0 from the BASIC Stamp to the LED connection on the PDB.

http://forums.parallax.com/showthread.php?p=593255

http://www.parallax.com/detail.asp?product_id=27220

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Chris Savage
Parallax Tech Support
csavage@parallax.com

Post Edited (Chris Savage (Parallax)) : 6/26/2006 3:31:00 PM GMT

kingspud · 2006-06-26 15:21

This is why I did this new post... I am asking for a test code and setup on the PDB.

kingspud · 2006-06-26 17:41

I did the exact code you gave me and I got no response!

DO
  HIGH 0
  PAUSE 500
  LOW 0
  PAUSE 500
LOOP

Is there something else I can try or should I send it back???

Joe

kingspud · 2006-06-26 17:47

Maybe I didn't phrase the question clearly enough!

I would like some detailed code and setup instructions to hook up two LEDs on the PDB to use two ports; the main port side and the Aux port side!

I don't know where the hookups for the AUX side are?

Example; hook wire to RC7 or P15 to R1 to LED to Ground...

and the code to go with it!

Joe

Chris Savage · 2006-06-26 18:09

Joe,

·· There is a table in the PDB Manual which explains where each pin on the BS2p40 goes to on the board.· Please see that manual and remember you cannot have an SX-28 plugged into the board at the same time.

http://www.parallax.com/dl/docs/prod/boards/ParallaxPDB.PDF

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Chris Savage
Parallax Tech Support
csavage@parallax.com

T Chap · 2006-06-26 18:27

to use the p40 pins you have to specify what side to use in every instance, and after that statement it will use that "side" till you make a new statement to change it back. there are 16 pins on each side 0-15. you must first specify MAINIO or AUXIO before making a pin do something on a P40

assuming you have a resistor on pin 0 on the main side P0 going to an LED, whereas the LED is connected to VSS on the other side, and, you have a reistor connected on pin 0 off the AUX side(pin21), X0, going to the LED and the other side of the LED going to VSS:

You should specify variables for pins using MAINIO and AUXIO to tell the pins what they are connected to:

MAINIO

MainSidePin0 VAR OUT0

AUXIO

AuxSidePin0 VAR OUT0

Main:

MAINIO
MainSidePin0 = 1
Pause 500
AUXIO
AuxSidePin0 = 1
Pause 500
MAINIO
MainSidePin0 = 0
Pause 500
AUXIO
AuxSidePin0 = 0
Pause 500

goto main

Chris Savage · 2006-06-26 18:49

Hello,

·· Just to clarify, if you do not specify which bank of I/O MAIN is assumed.

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Chris Savage
Parallax Tech Support
csavage@parallax.com

kingspud · 2006-06-26 21:30

This is perfect!!
I will test this out tonight!!!
thanks
Joe

Ryan Clarke · 2006-06-26 22:59

Here is a simple hookup to flash two LEDs, one in MAINIO and the other in AUXIO:

Code as follows:

attachment.php?attachmentid=42248

' {$STAMP BS2p}
' {$PBASIC 2.5}

DO
  HIGH 0
  AUXIO
  HIGH 0
  PAUSE 1000
  LOW 0
  MAINIO
  LOW 0
  PAUSE 1000
loop

Hope this helps!

Ryan

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Ryan Clarke
Parallax Tech Support

RClarke@Parallax.com

kingspud · 2006-06-26 23:05

You people are so incredible!!

That is why I love this forum!!!

Thanks to everyone for all their help!!!

I will be having some fun testing tonight!!!!

Joe

kingspud · 2006-07-04 02:17

Hello everyone,

Just some clarification... I tried the following code and it worked!· So I know the chip is ok!· thanks!!!

'·{$STAMP·BS2p}
'·{$PBASIC·2.5}

DO
··HIGH·0
··AUXIO
··HIGH·0
··PAUSE·1000
··LOW·0
··MAINIO
··LOW·0
··PAUSE·1000
loop

BUT.....................

When I tried the next program I couldn't get it to work...

MAINIO

MainSidePin0 VAR OUT0

AUXIO

AuxSidePin0 VAR OUT0

Main:

MAINIO
MainSidePin0 = 1
Pause 500
AUXIO
AuxSidePin0 = 1
Pause 500
MAINIO
MainSidePin0 = 0
Pause 500
AUXIO
AuxSidePin0 = 0
Pause 500

goto main

__________________

Can someone please explain to me the port configurations on the BS2p40 chip.

Please see attachment of the p40 chip layout!!!

Can someone tell me the matching ports on the BS2p40 chip to the matching ports on the Professional Development Board?

I see RC...· and RB... and RA... but I don't·know what ports these are on the BS2p40 chip?

I know I have 15 mainIO ports and 15·AuxIO ports but what does that mean when someone says connect P21 to LED etc...?·

I would like to get the above code to work but need help on connecting the wires and understanding all the new ports available to me.

thanks

Joe

kingspud · 2006-07-04 02:20

Hello again,

To add to the above comment...

If you look at the chip pdf file you will see P0 to P15 and X0 to X15...

These are what I am trying to match the RC, RB, and RA·ports on the PDB board and are these the AUXIO ports?

thanks again,

Joe

Help from an admin or anyone familiar with the PD board and the BS2p40 chip?

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