MicroSys SBC1190 Problems

I'm not familiar with the board, but have some guesses in case nobody comes forward with authoritative info.

That would indicate possible lack of an operating system, as you've no doubt conjectured.

It might not be sending anything because it doesn't have a program to tell it to do so.

It might be expecting a program to load into flash. Maybe in intel hex, or trx, or bin or whatever. I didn't read the PDF, it didn't specify? If so, it would probably be fairly stupid, and expect it in one certain format AND NO OTHER, and at some certain bitrate AND NO OTHER. Hopefully your vendor or another developer will come through with some real data, because you'd lose a lot of hair trying every possibility!

Possibly, but the brochure says the OS in in flash, on the bottom of the board. and the socket is for ROM or RAM (user supplied?)

I got an RS232 tester and hooked it up. I am getting a "heartbeat" signal on COM2, but its probably a non-printing character. I get nothing on hyperterm.

Still haven't received any info from MicroSys tech support :(

If you are getting one character repeated at a fixed interval, I bet you it's actually the start of an XModem session. The unit is begging you for a decent meal of fresh software, and you aren't giving it any, you heartless cad.

Well, if you have a copy of the MicroSys software, I'd be happy to feed it to it.

As my OP stated, I got the board from Alltronics as is. No software, no manual and MicroSys is too $$$ for my budget right now.

I don't - but I hope you're not believing what Alltronics wrote about "this board will run Linux".

I think you've just had an object lesson in the true meaning of "penny wise, pound foolish", but looking at the datasheet shows that it does indeed have an XModem application loader built in, and it seems to be slightly DOS compatible. The heartbeat character you are seeing is probably , 15H. Given this information and either a terminal program that will display hex or an oscilloscope, you should be able to work out the baud rate in fairly short order. If you send the board a DOS .EXE (use Turbo C or OpenWatcom to build it), the board should run it.

It's like they used to say about newspapers: Don't believe everything you read.

More like Blackjack in Vegas. I got to other PC104 boards off of EBAY, both Octogon products and they work fine. So 2 out of 3 aint bad.

but looking at the datasheet shows that it does