I'm trying to communicate with an old device that operates at 1200 baud only. The tablet I'm using to control the old device will only go as low as 2400 baud. Any ideas on how to bridge this gap would be greatly appreciated.
Maybe you need to be talking to the vendor of the tablet, or writing the drivers to suit your needs? Got to presume someone selling a WinCE device has some people with some programming competence behind them.
Alternatively why not make a small board that converts/bridges serial ports of different rates. I've seen people use 30 cent Cortex-M0 parts to mitigate between serial rates and formats. You'd probably want buffering and flow control to hold off the faster device, but not an unduly complicated set of requirements.