I am a newbie to os20 and I am going to work on a st20 chipset.I am planning to start working a Set-Top Box and would like to know whether there are any sites which I should visit to get started.I have heard that the os20 is something similar to pSOS+.Is this true??any suggestions as to how I should start learning os20 is appreciated.
Thanks,
George.
take a look at the ST toolset 1.8.1. The sorces for OS/20 are included. This will answer you some questions.
There is also a short flyer form STI showing some basic ideas of OS/20.
The ST20 processor kernel, related to OS/20 is based on former INMOS "Transputer" architecture (although the higspeed serial links will not be used in an STB). The most important thing in ST20 is that it is a "stack based" processor architecture. This makes things like task switching pretty easy, but developing assembler code based on this architecture is not that fine - therefore its easier to develop things in C code.