Help in Programming

Fardeen

I am currently working on a wireless vital sign monitor. My project includes taking heart, pressure and temperature signals and analysing them.
I accomplish this by taking the signals, filtering and amplifying them, converting them digitally and processing them in a microcontroller before transmitting them wireless and displaying them using Labview.
I am using a microconroller because I am using serial communications for Labview software instead of DAQ (due to budge issues).
My microcontroller code therefore (BS2) requires to take in 3 signals from 3 different ·A/D, decode them to binary, and then send them in an infinite loop in a·format
······················<Tab>Signal1<Tab>Signal2<Tab>Signal3.
I however suck at assembly language and inspite of refering to so many different sources and sites, I am still having a hard time accomplishing this.
Can anybody help me please???

Jon Williams

Do yo want your pogram to run on the BASIC Stamp II? If yes, you will use PBASIC, not assembly.

What A/D convertors are you using? We have lots of example code for differnt converters.

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Jon Williams
Applications Engineer, Parallax
Dallas Office

Fardeen

I am using 8 bit A/D ( ADC08832)
I will appreciate any examples and help I can get.
Thanks alot.

Jon Williams

I don't have an ADC0832, but I did write the attached code for someone who does -- they said it worked for them.· As always, I suggest that you review the ADC0832 docs before running the code ... I'm human.

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Jon Williams
Applications Engineer, Parallax
Dallas Office

Fardeen

Hey Jon

I have written the code for my project. I just want someone to look over it.

My program is supposed to take 3 input signals from 8 bits A/D (AD08831) and process them·so as to output serially in the format

····································· <Tab>Signal1<Sab>Signal2<Cab>Signal3

so that I can separate them on receivind end (Labview).

Also, is there a way I could just take a signle input from A/D into my chip and serially display the outut on the basic stamp editor??

I noticed the connections between the [url=mailto:BS@-IC]BS2-IC[/url]·and RS232 on the BS2 manual and just wanted to doublecheck before doing that so as not to blow up anything.



Thanks

Fardeen

Sorry. I forgot to attach the file in the first message.

Jon Williams

<Tab> has an ASCII value of 9, and is a defined constant in PBASIC.

You should be able to do this: SEROUT pin, baud, [noparse][[/noparse]TAB, sensorValue]

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Jon Williams
Applications Engineer, Parallax
Dallas Office

Fardeen

Thanks for the response Jon.

Can I just use a single line command as

SEROUT pin, baud, 50, timeout, [noparse][[/noparse]TAB, sig1, CR, sig2, TAB, sig3]

where timeout is a label

Also, would the constants TAB, CR, and·TAB each be sent as 8 bits serially or?????

I would be very thankful if you can overlook my code please.

Thanks again

Jon Williams

Yes, you can do that; but note that there is no timeout parameter for SEROUT -- what you send gets sent. If you need to make sure that the receiver is ready then you'll have to use flow control. Our RS-232 AppMod shows how to do this (you'll also need a pin for the flow control input).

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Jon Williams
Applications Engineer, Parallax
Dallas Office