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Unread 05-11-2002, 22:48
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Quote:
Originally posted by VanWEric
I think i'll be fooling around with roboCon tomarrow or at least sometime this week. I'd be happy to run those tests for you, seeing as that these computers at school are made from a solid mass of kevlar, and could probably withstand anything. That, and i need to distract IMS with problems other than taking my privalages away one by one.
Does anyone know where to find a copy of the program running on the stamp located within the OI? That may help this effort greatly.
Lastly, what exactly is coming out of the computer? Is this a stream of data that can go over the modems? You may be able to replace the OI with a comp, and leave the sensor checks on the stamp code. Just theorizing, don't tear my logic apart to gruesomely.
Any who, send me the code you want me to test, and ill have at it. I'm assuming you just want to monitor it on the serial port, I think I can handle it ( i hope ).

OK, there are a few issues here. First, the Stamp is only in the RC. The OI consists of several other types of ICs. Similarly, the RC is A LOT more than just the Stamp. There are also processors for input, output and a master processor to control it all. This master processor (or mater uP) is the only thing the Stamp communicates with directly.

As for what comes out of the computer, its sorta complicated. It starts by waiting for a 255,255,1 sequence, then reads the next 11 bytes. These eleven bytes contain all eight sensors, both bytes of rc switches, and a control byte that I use internally to prevent bytes from every being 0 (Windows doesn't like sending or receiving 0 as it thinks it is the end of the message). It then waits to get back a 255,255,255 sequence indicating that the Stamp is ready to receive the new data. It then sends a 20-byte packet to the RC that contains all 16PWMs, both relay bytes, a byte for all eight LEDs, and a control byte similar to the one I discussed previously.

If you want to see this as actual code, open up the "RoboCon RC.bsx" file and take a look.

Finally, do you have an OI and an RC and the necessary cables (one F-F and one M-F)? If so, I'll try to write a little program in the next few days to record everything that gets sent back-and-forth between the two.

As another note, would people be interested in a more detailed description (possibly even a whitepaper) on the overall setup of the RC and OI?
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