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 Thursday, June 29 2017 @ 00:47 CEST

ZXGATE - Old Computers in new FPGAs

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

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HardwareOpen 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
 
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EEP: EEPROM Programmer for Linux

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HardwareAn 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.
 
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The Oric IDE Interface

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HardwareFor those of you which still have an Oric-1 in working condition The Oric IDE Interface is an interesting idea..
 
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Apple2fpga: Reconstructing an Apple II+ on an FPGA

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HardwareApple2fpga is an Apple II+ implemented on a FPGA development board, the Altera DE2 FPGA board.
 
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AppleCrate II

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HardwareFirst 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.
 
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Quick tip: Sun SPARCstation 2 - fix invalid IDPROM data

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HardwareIf 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:
  1. Hit ``n'' to get the new openboot prompt
  2. setenv diag-switch? false
  3. f idprom@ 1 xor f mkp (this will invalidate the checkum in the idprom)
  4. 8 0 20 0e c1 62 0ec162 mkpl (hit enter)
  5. Hit ctrl-D then ctrl-R, if you do NOT see a Sun Copyright notice, it worked, otherwise it failed.
  6. 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.
 
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HPSDR - High Performance Software Defined Radio

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HardwareHPSDR 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.
 
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SoftRock-40 - small, low-cost SDR receiver

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HardwareSoftRock-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.
 
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PicoLCD

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HardwareThe 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.
 
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