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Saturday, September 22 2018 @ 08:11 CEST

ZXGATE - Old Computers in new FPGAs

Monday, July 27 2009 @ 21:07 CEST
Contributed by: tingo
Views: 1,241

ZXGATE - Old Computers in new FPGAs is interesting. ZX81, ZX Spectrum, Jupiter Ace and TRS80 in a FPGA.

Open Programmer

Sunday, July 19 2009 @ 21:32 CEST
Contributed by: tingo
Views: 676

Open Programmer - an open source USB programmer for PIC micros, I2C and MicroWire EEPROMs, some ATMEL micros, generic I2C/SPI devices and (soon) other devices. Quick facts:

Completely free and Open Source (including firmware)
Programs PIC10-12-16-18, 24xxxx I2C EEPROMs, 93SX6 MicroWire EEPROMs, some ATMEL micros, communicates with generic I2C & SPI devices
USB 2.0 Full Speed interface, HID class (same as keyboards, mice, etc.)
Self powered
Built from easy to find components (estimated cost ~10€)
Hardware generated timings for maximum speed and reliability (writes a 18F2550 in 15s, 8s under Linux)
Open source control programs for Linux and Windows

EEP: EEPROM Programmer for Linux

Monday, July 13 2009 @ 21:24 CEST
Contributed by: tingo
Views: 999

An oldie, but still: EEP: EEPROM Programmer for Linux: EEP is an open hardware design EEPROM burner for 24-pin and 28-pin 5-volt EEPROMs with Linux support. Cool if you need it.

The Oric IDE Interface

Friday, July 10 2009 @ 01:21 CEST
Contributed by: tingo
Views: 861

For those of you which still have an Oric-1 in working condition The Oric IDE Interface is an interesting idea..

Apple2fpga: Reconstructing an Apple II+ on an FPGA

Friday, July 10 2009 @ 00:25 CEST
Contributed by: tingo
Views: 762

Apple2fpga is an Apple II+ implemented on a FPGA development board, the Altera DE2 FPGA board.

AppleCrate II

Thursday, July 09 2009 @ 22:23 CEST
Contributed by: tingo
Views: 742

First the AppleCrate 1 cluster which was very impressive, and now - the AppleCrate II. The AppleCrate II is a cluster made from 17 Enhanced Apple //e main boards. Both versions of the AppleCrate cluster uses NadaNet for networking. Extremely impressive.

Quick tip: Sun SPARCstation 2 - fix invalid IDPROM data

Tuesday, June 16 2009 @ 21:37 CEST
Contributed by: tingo
Views: 1,337

If your Sun SPARCstation 2 boots up and says "IDPROM data invalid" or some such, you can have problem operating it, because the IDPROM conations the ethernet address and Hostid. Luckily, the Sun NVRAM/Hostid faq have answers. To fix the problem, you do like this:

Hit ``n'' to get the new openboot prompt
setenv diag-switch? false
f idprom@ 1 xor f mkp (this will invalidate the checkum in the idprom)
8 0 20 0e c1 62 0ec162 mkpl (hit enter)
Hit ctrl-D then ctrl-R, if you do NOT see a Sun Copyright notice, it worked, otherwise it failed.
That's it

Oh, if it doesn't work the first time, try again. And - if the battery on you SPARCstation 2 is dead you will have to do this every time the machine has been switched off.

HPSDR - High Performance Software Defined Radio

Sunday, April 19 2009 @ 14:53 CEST
Contributed by: tingo
Views: 921

HPSDR is a High Performance Software Defined Radio: The HPSDR is an open source (GNU type) hardware and software project intended as a "next generation" Software Defined Radio (SDR) for use by Radio Amateurs ("hams") and Short Wave Listeners (SWLs). Wikipedia: HPSDR.

SoftRock-40 - small, low-cost SDR receiver

Sunday, April 19 2009 @ 13:46 CEST
Contributed by: tingo
Views: 1,127

SoftRock-40 is a small, low-cost "Software Defined Radio" receiver kit for 40-meters, used with powerful software on the PC for multi-mode operation. It's like a low-cost, receiver-only GNU Radio for the 40 meter band. Cool! Ther is also info about a version 5 of the kit. Even more info on SoftRockRadio.org. Other kits at SDR-Kits.net.

PicoLCD

Sunday, September 14 2008 @ 13:01 CEST
Contributed by: tingo
Views: 645

The PicoLCD is an interesting device. Display, keys and IR receiver. It plugs into a usb port (ok, it is only full speed, but anyway) and there is Linux drivers and opensource SDK. I think they are supporting LCDproc so this will work with most opensource systems. More info here.