|Info:||Tiny-EPROMer - as seen in 64'er Magazine, special issue 84.|
Tiny-EPROMer is a C64 hardware device that creates (or ‘burns’) EPROMs (Erasable Programmable Read-Only Memory). It first appeared as an electronics project in 64'er Magazine, special issue 84. It plugs into the C64 user / joystick ports. The accompanying software displays text in English or German.
EPROMs have advantages over other types of storage:
- Boot instantly — no waiting for a tape to load.
- Permanent storage that keeps data when powered off.
- Unlike ROMs, EPROMs are rewriteable. (EPROM wiping uses ultraviolet light. Removable tape protects EPROMs from the ultraviolet in sunlight).
EPROMs allow C64 hackers to conveniently create their own custom bootable kernals (known as ‘modding’). One popular use for this technique is customizing the C64 start-up screen text and colors.
As well as modding, EPROMs also allow instant booting between alternative kernals (example: a stock C64 kernal / JiffyDOS). The original C64 kernal ROM is replaced by a device such as a Switchless Kernal or Dual Kernal adapter (available online) and two EPROMs. During boot, the 'restore' button switches between the C64 kernal / JiffyDOS.
Tiny-EPROMer software is available online from:
Title: Tiny-EPROMer V2.0 Category: Utility/EPROM Release Date: Unknown Language: German Size: 16K Machine: PAL & NTSC Code Type: Basic Distribution: Freeware Notes: Original by Rüdiger Stahl, converted by The Luser.
A PCB layout is available online from:
A full schematic is available online from:
Tiny-EPROMer is over 30 years old, and more convenient alternatives now exist for burning / managing / booting EPROMs, including the versa64cart:
- 64'er magazine special issue 84: "Hardware; u.a. zum Selbstbau: Floppy-Speeder, 8-Kanal-Schaltinterface"