phillip m gallo wrote:
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That said, i think it is just fine for "one of a kind" or even a "swiss army knife" cpu pcb.

You just have to be aware of it's warts.

Hi Philip,
Exactly my argument. For the small scale and the non-pro use that many in the forum use it for, its fine. Its hard enough to get to grips with MCU hardware without asking people to write CPLD code as well. I do incidentally use the dynamic mode changing on 8255s in our core instrumentation computer system.

Thanks for the reference too. If IP could be bought for the cost of the single component then this idea woul really take off. Have you seen the typical costs of IP for these things ????

Steve



a ref:

HDL 8255

regards,
p