|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[edit | edit source]
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).
Usage[edit | edit source]
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.
Software[edit | edit source]
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.
PCB[edit | edit source]
A PCB layout is available online from:
Schematic[edit | edit source]
A full schematic is available online from:
Alternatives[edit | edit source]
Tiny-EPROMer is over 30 years old, and more convenient alternatives now exist for burning / managing / booting EPROMs, including the versa64cart:
Links[edit | edit source]
References[edit | edit source]
- 64'er magazine, special issue 84: "Hardware; u.a. zum Selbstbau: Floppy-Speeder, 8-Kanal-Schaltinterface"