Difference between revisions of "Simple SoC"

From Hackerspace.gr
Jump to: navigation, search
Line 12: Line 12:
  
 
=== Upcoming ===
 
=== Upcoming ===
==== [[PLD_Workshop_2013/11/06|2013/11/06 - Differential debugging]] ====
+
==== [[PLD_Workshop_2013/11/20|2013/11/20 - Want some ICE?]] ====
* investigate program upload without reflash
+
* Implement UART
* test suite?
+
* Implement the ICE spec
  
 
=== Log ===
 
=== Log ===
 +
==== [[PLD_Workshop_2013/11/06|2013/11/13 - Differential debugging]] ====
 +
* Investigate serial communications
 +
* Try out UART sample
 +
* draft out ICE spec
 +
 
==== [[PLD_Workshop_2013/10/30|2013/10/30 - Corrupted Pixels]] ====
 
==== [[PLD_Workshop_2013/10/30|2013/10/30 - Corrupted Pixels]] ====
 
* Had no luck actually locating the vga corruption bug
 
* Had no luck actually locating the vga corruption bug

Revision as of 22:15, 13 November 2013

Description

A very basic, custom SoC softcore


Primary git repo: on github

Specs/Design: on github as well

We'll merely keep a meetup log and notes here, important stuff will be stored in One Single Repo (tm), next to the code :)

Meetups

Upcoming

2013/11/20 - Want some ICE?

  • Implement UART
  • Implement the ICE spec

Log

2013/11/13 - Differential debugging

  • Investigate serial communications
  • Try out UART sample
  • draft out ICE spec

2013/10/30 - Corrupted Pixels

  • Had no luck actually locating the vga corruption bug
  • simulator results and simpler test cases seem to work fine
  • implemented wait

2013/10/23 - We love glitches

  • Fixed VGA, centered image, still outputs corrupted data though
  • vram resized to 256x256x3 in order to fit

2013/10/16 - How about conditions?

  • Implemented beq, bga, bgt, jr, draw, fixed write16, read16
  • wired up vram (resized to 2bpp because it doesn't fit)
  • added vga output, but it is glitched/buggy

2013/10/09 - Howdy Simulator, for real

  • debug, debug, debug, and simulate
  • Implemented more state logic
  • cpu mostly works, needs some more opcodes!

2013/10/02 - Howdy Simulator

  • Implemented ram
  • Added delays for ram

2013/09/25 - Verilog at last

  • Spec now has vsync
  • Reviewed sdlcore code
  • Hacked together some very basic Verilog

2013/09/18 - Let there be code

  • Debugged & Finished sdlcore implementation

2013/09/11 - September reunion

  • Discuss and improve specs a bit
  • Update documentation and C# ref. implementation
  • forked from Programmable Logic Lessons to Simple SoC

Resources