Derek_Stewart wrote:Hi Dave,
Your expansion plans for the QL sound good. But why not goto the 68040 or 68060. I am not really intetested in the 68030...
I built many Q60 boards in 2002. A lot of work to solder many joints and there are some construction issues that if care is not taken failure could occur.
As Qbranch found out, there requires alot of attension to detail. Which they did not have, ad thet suffered failures due bad component choice and useless solderong skills. Only the 1st batch of Q40s built by Tony Firshman were consistantly good.
The EC030 is the highest CPU with dynamic bus sizing, that can talk to a BBQL. That involves spending our design budget in areas that make a difference today. Coming up with custom logic for the 040 or 060 is a bit of a different beast. They're much faster and more efficient. Bottom line, we need to sell 100 '030 "Platinum Cards" with $100 profit on each to raise the funds to develop a custom logic to use the 040 or 060 in any meaningful timescale. It requires a good amount of prototyping, specialist test equipment (which we have mostly already bought and owe a lot on!) and then going out and buying a batch of 060s and all the rest of the bill of materials, it could easily cost $250 per card, so making 50 cards is a $12,500 up front commitment in components, PCBs, etc. Faster, non-fake '060s are expensive.