Started by SerErris, 15:26, 27 January 22
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Quote from: gerald on 13:53, 29 January 22Too small The ink/border registers already require 17*5 bit = 85 DFF. You only have 72.My first prototype used a XC2C256.
Quote from: SerErris on 22:43, 01 February 22Mine is 166 .. but I remember (maybe wrong) that it supposed to be 88 ...
Dedicated logic registers 171 -- By type: -- Primary logic registers 165 / 112,960 < 1 % -- Secondary logic registers 6 / 112,960 < 1 %-- By function: -- Design implementation registers 166 -- Routing optimization registers 5
Quote from: SerErris on 15:56, 20 October 22Hi, thanks for the offering.I do think a collaboration makes sense - if we match up.E.g. it needs to be on KiCad - as I do have no interest into investing another learning curve into anything else. In the end it is an hobby.Also I think it needs to be a 2 layer design. A 4 layer design is just very expensive in a small manufacturing volume and esp. prototyping will kill you with cost.So 2 layer design it is - which also rules out BGAs. They are in the size we need them by far to small to route them on a 2 layer board (including power and GND as well). So it needs to be the QFN48 package. But that will fit on a small board.If you could start with a very typical schematic for the ice40 - including the two voltage regulators and the flash circuitry (e.g. resistors required and what not), that would be already of great help. I can then add all the stuff around the 40007 (voltage translators and buffers where required).A github repository would be nice (I can create one if required).Suggestions?
Quote from: GUNHED on 18:12, 20 October 22Why not using 64 colors instead of 32?Color selection actually uses &40-&5F, the values &60-&7F are free and could be used.Imagine a CPC with 64 colors. All the brown and gray we miss.
Quote from: GUNHED on 17:22, 25 October 22Somehow the KC compact has 64 colors possible, I did hear. Don't know if this is real or a rumor though.
Quote from: GUNHED on 17:22, 25 October 22Thanks for the information. So the voltage levels come from outside the GA.And probably it's hard to get additional voltage levels inside the new GA, right?Somehow the KC compact has 64 colors possible, I did hear. Don't know if this is real or a rumor though.
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