Got a Slyva SC552ES from the PDX mini-maker fair as a giveaway. I've found very little information about this board online, but luckily all the manuals were included!
On boot, the board identifies itself as:
* SC552ES(22Mhz) V1.563 (C)1997 SYLVA Control Systems *
The board appears to be a vintage Intel 8051 design using a Phillips 80C552 CPU with a whole bunch of glue logic. Primarily intended for home automation (via X10) or potentially data collection (via I2C + ADC/digital inputs)
Note: All files in the from_vendor folder are collected from around the internet, mostly the Internet Archive. I DO NOT OWN THESE FILES AND I DID NOT CREATE THEM.
- Scans of the manual + related documentation I recieved with the board are in the "scans" directory
- I suspect these are just printed out versions of the "WinHelp" files downloaded from the Sylva website. I found a copy of these on the Internet Archive and included them in the repo. I'm unsure how different the WinHelp files are from the PDFs I have.
- SYLPRO1.EXE (downloaded from Internet Archive): Required for sending/receiving programs.
- I suspect you may be able to modify another program to work, basically using any other program (PuTTY, TeraTerm, Mac OS Serial, etc.) to transfer files to the device causes most of the characters to be dropped. The Sylva program appears to wait for the ">" prompt on each line to work around this.
- 19200,8,N,1 (with baud jumper set)
- 9600,8,N,1 (without baud jumper set)