Previews of arrayForth 3 Software & Documentation

During the development of arrayForth 3, the most recently made installer as well current drafts of relevant documentation are now posted near the bottom of the Customer Support Central page.

This set of software and documentation is not yet released and is not supported until then. It’s posted for the convenience of people actively working […]


New Initiatives for 2019

GreenArrays is pleased to announce two major projects for 2019.

An improved evaluation board, EVB002, is being manufactured and should become available during first quarter of 2019.

The design of a new chip, the G144A13, is underway with many improvements.

Look for further announcements soon!


DB001 Updated

Updated version of Data Book DB001, F18A Technology Reference, is published. The new edition resolves comments received: Add Ldata for side analog nodes. Clarify variable length destination address field. Emphasize conditions for overflow in multiply step. Clarify shared pin wake-up configuration is a chip design issue not an F18 issue.


New Publications for Forth Day, 2017

It’s nearly time for Forth Day (18 Nov 2017) at Stanford University, hosted by SVFIG. This year we will have Daniel Kalny from Czech Republic, Stefan Mauerhofer from Switzerland, and Greg Bailey from GreenArrays presenting recent work done by these men and by the GreenArrays team. In support of these presentations, we have just published […]


New GreenArrays Headquarters

We have finished moving our offices and lab into more permanent quarters in Cheyenne, Wyoming. Our new home provides considerably more space for those activities as well as more and better accommodations for visiting colleagues. For updated contact information, see the Contact Information page on our website.


Corrections to AN007 and AN016

For the benefit of those planning to attend our presentation on Forth Day 15 November, minor corrections have been posted for the recently published documents App Note AN007 (dated 12 Nov) and App Note AN016 (dated 11 Nov).


New App Note AN007 (Software-Defined NIC)

App Note AN007, Software-Defined NIC…, has been newly issued. A software-defined full duplex 10baseT Network Interface Controller is implemented as a team of nodes controlling transmit and receive signal pins directly. The signals are conditioned by minimal electrical interface circuitry. External transmit timing is used. The team is designed to function as a memory-mapped device […]


New App Note AN016 (PID Controller)

App Note AN016, Incremental PID Controller for a Brushed DC Motor, has been newly issued. The work of Daniel Kalný, this paper describes how to control speed of a brushed DC motor equipped with an optical encoder using a PID controller in a closed loop system. The theory of regulation is well described in literature. […]


Updated App Note AN001 (MD5)

App Note AN001, Implementing MD5 on a GA144, has been revised and updated. Among other things, this revision shows how to test and exercise a module such as the MD5 team under control of polyFORTH running on the host chip of an EVB001 evaluation board.


New App Brief AB004 (Port Execution)

App Brief AB004, Port Execution, has been newly issued. This single-page brief gives a simplified demonstration of controlling a neighbor node by feeding it instructions over a COM port.