The Web Site to Remember National Semiconductor's Series 32000 Family


In the 1990's the Unix based NetBSD operating system was ported for the Series 32000 architecture. NetBSD is an open source based OS. Unfortunately today no data of the PC532 port can be found at any more. Some years ago the data was still in the archive.

In 2009 I downloaded most of the software for my PC532E project. Luckily I found some support in the internet how to get a system up and running. Again luckily the most important help is located not far away from my hometown. The contact also gave some important information for my M32632 CPU project. For example how is the instruction cache updated in case of self-modifying code (used for dynamic libraries) ? This is an interesting question if the cache size is made bigger in the M32632.

At the end NetBSD version 1.5.3 is running stable on my PC532E. After two month of testing the M32632 with the same software I believed that the CPU was free of simple bugs. But this was a mistake - see Systems/Acorn. Today the PC632M is running stable like the PC532E.

The detailed install procedure for NetBSD 1.5.3 on a PC532 can be read here:

NetBSD 1.5.3 Installation (HTML)

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