More accurate specifications and FPGA design well underway

A project log for DEXT Meteor:

The DEXT Meteor is a powerful and small FPGA computer with a unique OS.

dylan-brophyDylan Brophy 07/01/2018 at 04:100 Comments

I have been working a lot on the FPGA design.  I now have a more accurate idea of specifications.

short list of new specs:

Detailed explenation:

First off, we are now going to use a Spartan 6 LX9 FPGA.  They are much faster, and allow the system to run at 100Mhz (YAY!) - but just barely.  about .5 ns slack.  But doing pretty well!!

I don't have any experience with SDRAM controllers, so we are going for the more expensive, lower density, yet much faster option: SRAM.  I don't want to play with any technology I am not used to for this project, maybe another project I will use SDRAM.

Not entirely sure about graphics or audio yet,  ESP8266 for WiFi and bluetooth, and an SD card controller somewhere in there.

I will either build the graphics into the FPGA, or I will use the VLSI chip VS23S0100.