August 2011 Meeting Notes
Compiled by Dave Jaffe
Contributions from Kevin Appert and others
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09:50 |
Coffee and a Chat |
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10:15 |
Interrupts on Arduino - CH Ting
"I thought a
trivial example of interrupts written in eForth would not be interesting to our
esteemed membership, so, I explored the possibility of turning the eForth
system into one interrupt service routine to the UART receiver interrupts. It
worked beautifully. I will report on the idea and demonstrate its actual
implementation at the meeting."
- Slides: Interrupts on Arduino
- 157 Kb pdf file
- interrupt.txt
- interrupt_1.txt
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111:45 |
Lunch
We walked to
The Treehouse by
Tresidder Union. |
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13:30 |
Introductions, announcements, rumours and gossip - All
assembled
We'll go around the room and each introduce ourselves. If
you're willing, tell us about something about yourself. Suggest a future
presentation! |
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13:45 |
Evaluation Board - John Rible
John showed off
the newly-introduced Green Arrays
evaluation
board. |
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14:00 |
Forth Audio Haiku - Brad Nelson
Brad described
his efforts to expand the Forth Haiku concept to include stereo sound. Just as
a graphical Haiku captured the mathematical expression defining an image in
terms of a short Forth program, an audio Haiku defines a raw sonic waveform. An
implementation using the newly minted Web Audio API was demonstrated.
- Slides
on Google Docs
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14:50 |
Break |
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13:30 |
The Kestrel 2 Emulator - Samuel A. Falvo II
Sam
showed off the emulator for his Kestrel 2 computer, a novel design which he is
moving forward through the cracks and crevices of his busy life. The design
works both under Mac and Linux operating systems. |
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16:00 |
Adjourn |
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Other items:
- Forth
- Forth articles in ACM Publications:
- SIGFORTH
Newsletters (access to Tables of Contents)
- All
Forth articles
- SIGFORTH
- JFAR
- SIGARCH
Computer Architecture News
- SIGPLAN
Notices
- Computers
- Software
- Hardware
- eZ430-Chronos
Wireless Watch Development Tool - $24.50 (use code: CHRONOS_50
- Atmel UC3-A3
Xplained - $29 (Dave Jaffe received on of these from the Embedded Systems
Conference.)
- Atmel
XMEGA-A1 Xplained - $29 (Kevin Appert received on of these from the
Embedded Systems Conference.)
- NetDuino
- Forth Programming Books
- Articles
- Moore's New
Law
- The
Demise of the Low-Level Programmer
- A
Conversation with Jef Raskin - ACM
- Stores
- Robots
- Games
- Companies
- Forth Jobs - submitted by Dennis Ruffer
- Software
Engineer - L-3 Communications - Bristol, PA
- Junior
Control Software Engineer - Lightsource Consulting - Fremont, CA
- Senior
Control Software Engineer - Lightsource Consulting - Fremont, CA
- Software
Developer 3 - Oracle - Santa Clara, CA
- Senior
Firmware Engineer - PEAK Technical Staffing - Orange, CA
- Data
Acquisition and Control System Engineer - JohnsonMatthey - Taylor, MI
- Course Lectures
- People
- A
Conversation with Jef Raskin - ACM
- GreenArrays
- Meetings
- Forth conference in Taipai - 02/17-18/2012
- Videos
- Pendulum
waves
- Other
- Project Jarvis -
video
-
Dave Lowry has built a
16 bit OISC in a
FPGA. Connected are ROM, SRAM, UART, and a pseudo-ISA slot, which currently
holds a floppy controller card. It's running Forth. Speed is 500,000
moves/second. Haven't done any benchmarking, but it "feels" as fast as a 68HC11
running a similar Forth model (eForth). (Reported by Nick Moffit -
07/29/2011)
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