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6 results for tags FPGA x

The J1 Forth CPU — excamera

J1 is a small (200 lines of Verilog) stack-based CPU, intended for FPGAs. A complete J1 with 16Kbytes of RAM fits easily on a small Xilinx FPGA. Some highlights:
Extremely high code density. A complete system including the TCP/IP stack fits in under 8K bytes.
Single cycle call, zero cycle return
Instruction set maps trivially to Forth
Cross compiler runs on Windows, Mac and Unix
Basic software includes a sizeable subset of ANS Forth and a portable TCP/IP networking stack.
Thu Jun 28 18:18:51 2018 - permalink -
- http://www.excamera.com/sphinx/fpga-j1.html

computer Forth FPGA hardware
w11: PDP-11/70 CPU and SoC

The project contains the VHDL code for a complete DEC PDP-11 system: a PDP-11/70 CPU with memory management unit, but without floating point unit, a complete set of mass storage peripherals (RK11/RK05, RL11/RL02, RK70/RP06, TM11/TU10) and a basic set of UNIBUS peripherals (DL11, LP11, PC11), and last but not least a cache and memory controllers for SRAM and PSRAM.

The design is FPGA proven, runs currently on Digilent Cmod A7 , Arty , Basys3 , Nexys4 DDR , Nexys4 , Nexys3 , Nexys2 and S3board boards. See section Complete Systems for more information.

5th Edition UNIX, 7th Edition UNIX, and 2.11BSD UNIX are known to boot, the hardware should also support DEC RT11 and RSX-11M, see section Running Systems for more information.

This is a retrocomputing project, rebuilding hardware from the late 70s and running historical software. To get into the tune see Figure D-1, a 11/70 console, and Figure F-2, a baseline system setup.
Mon May 14 11:31:23 2018 - permalink -
- https://wfjm.github.io/home/w11/

computer DEC FPGA history pdp-11 unix VHDL
OberonStation - The Oberon computing platform

OberonStation™ is a self-contained FPGA-based, 32-bit computer designed specifically to run Oberon RISC, as described by Profs. Niklaus Wirth and Jürg Gutknecht in Project Oberon (New Edition 2013).
http://www.projectoberon.com/
Fri Mar 25 20:27:12 2016 - permalink -
- http://oberonstation.x10.mx/

computer FPGA hardware Oberon Wirth
snickerdoodle: Create Something Different | Crowd Supply

A palm-sized, reconfigurable Linux computer that connects to the real world: ARM + FPGA (Zynq) + Wi-Fi + Bluetooth + 154 I/O
Tue Mar 22 13:46:11 2016 - permalink -
- https://www.crowdsupply.com/krtkl/snickerdoodle

ARM electronics FOSS FPGA hardware
TE0726 "ZynqBerry"

The Trenz Electronic TE0726 is a Rasberry Pi compatible FPGA module integrating a Xilinx Zynq-7010, 4 USB ports, an Ethernet port and 16 MByte Flash memory for configuration und operation.
Tue Mar 22 12:42:44 2016 - permalink -
- http://www.xilinx.com/products/boards-and-kits/1-ckymke.html

electronics FPGA hardware pi raspberry π
Homemade GPS Receiver

Fairly detailed description of a GPS receiver using 1-bit quantisation, down-conversion, despreading and tracking in an FPGA. The tracking loops are implemented in firmware on a custom Forth-based processor (in the same FPGA), the navigation solution is computed in a Raspberry π (http://www.raspberrypi.org/archives/3916).
Wed Jun 26 09:51:23 2013 - permalink -
- http://www.holmea.demon.co.uk/GPS/Main.htm

FPGA GPS hack hardware navigation satellite

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