Run 2 Program in BS2

irivine

it is possible to run 2 different programn on the same BS2 ?

Bruce Bates

irivine -

You haven't given us quite enough information to give you a proper answer to your question. Let me try rephrasing your question if I may. If you were to ask:

Can I have two separate programs within a BS-2, the sum of the sizes of which do not exceed the 2K memory limit, and have them operate independently of each other, with some external event determining which one would be operational?

The answer to that question is YES. Moreover, if you ask the same question of a BS-2sx or any other of the larger Stamp platforms, you can change the 2K limit mentioned above to an 8 x 2K limit (8 times larger) due to the banked memory feature which they contain. Just be aware that the 8 x 2K banked storage is not linear.

I hope that answers your question. If not, we'll give it another shot with more information from you.

Regards,

Bruce Bates

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When all else fails, try inserting a new battery.

irivine

yes , i am refering to running 2 programn that does not exceed the memory space

hw will i be about to do it ?

i am also using the Board of Education Development Board - Serial Version , is there anyway that when i press the reset button , it will switch between the 2 programn



thanks for the help

Bruce Bates

irivine -

Let's just look at the original question, and save any use of RESET until you understand the concept here. Here is an overview in pseudo-code:

- - - - - - - - - - - - - - -

Condition Pin 1

Begin:

If (Condition = 0) THEN GOTO RoutineOne ELSE GOTO RoutineTwo

RoutineOne:

DO

'one set of instructions

LOOP

RoutineTwo:

DO

'a different set of instructions

LOOP

END

- - - - - - - - - - - - - -

Does that makes sense to you? There are many ways to accomplish what you asked, this is just one way.

Regards,

Bruce Bates

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When all else fails, try inserting a new battery.

ArnoNL

Hello,

as I was looking for a solution to use full EEPROM memory of the BSpx I found the BSp manual with an example how to store 2 or more different programs in a BS2p (it will work for all BS with 8x2k memory). Find the link below:
http://www.parallax.com/Portals/0/Downloads/docs/prod/book/bs2pCommnFeat.pdf

Pages 25 to 28.

Hope this helps you.

Kind regards,

Arno

irivine

ya i know the concept u mention

irivine

hi Bruce

the following is the code that i have for my school project

i have tried what u mention and understand the concept of using the IF...ELSE , GOTO Command

but i still cannot get the actual condition i need to have to allow the 2 program to switch when i need either 1 of them

Thanks for the time

Best Regard

Bruce Bates

irivine -

I changed a few things in the method by which you get to each of the routines. Instead of GOTO we're now going to use GOSUB which is a concept with which I trust you are familiar.

Please realize I'm not exactly sure what the expected outcome is to be (practically) of switching between the two programs. I set it up to dump to the LCD when the button is pressed. If that's not correct, it's easy enough to change it to meet your criteria.

I also massaged some of the indents, removed a few lines of white space and added a few lines of white space in. I hope I didn't screw up the way your professor expects to see it. If so, my apologies, I just wanted to make it just that much more readable. It looks real good from a readability standpoint, and I do hope he takes that into consideration!

The new "Mod1" version is attached to this message.

Regards,

Bruce Bates

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When all else fails, try inserting a new battery.

irivine

Hi Bruce

i have try the mod code u uploaded . It does not switch to the other program when i press the reset button on the Development board

do u know anyway that i could solve that part ?

Thanks



just a mention , i am currently using the ping sensor , 2x16 serial LCD[noparse][[/noparse]Backlit] and the Board of Education Development Board - Serial Version

this whole project was to
1)detect a object that is moving towards and away from the sensor , measuring its distance from the sensor·and spd its moving at
2)detect the number of people that passby the sensor

Thanks for helping

Best Regards

irivine

Help needed , need this urgently

Ant help will be appreciate !

Thanks !

SRLM

You need to add in some of your own code. Condition is always 0, so it always goes to subroutine 2.

irivine

Hi SRLM

which code will u be refering to ?
I have got the code for my project , currently i just hope to get the switching of the program when i press the reset button of the Development Board

is there any pin i have to assign that will trigger the condition into switching the 2 programs

thanks

Bruce Bates

irivine -

Is there some reason why you NEED to use the RESET line? If the answer is YES it makes the program about 10 to 100 times more difficult and complex. That's not to say it can't be done but it's usually only attempted by seasoned Stamp programmers, not students with a deadline to meet.

If you would merely use a standard pushbutton this program would have been done yesterday! Is that a problem?

Regards,

Bruce Bates

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When all else fails, try inserting a new battery.

SRLM

I was referring to the code posted by Bruce Bates.

irivine

thanks

i have figure out how to get the program to switch by adding a push button that is at pin 1 which will go with the code of mine

Thanks for the help render