is it possible to rebuild old c64 hardware enhancements?

On Fri, Mar 6, 2009 at 05:24, Alexandre Souza <alexandre-listas at e-secure.com.br> wrote: True, I have seen a (non-booting) IDE interface, and it is pretty easy - a CF based one could be simpler, since it could be done with a 8-bit interface only at a small loss of speed. However, all bootable interfaces would require a ROM to tell kickstart how to use it. (I am thinking of something that would work with an original A500). But at the expense of convenience, the SDHC parport interface would be super simple and thus cheap. In fact, the minimal implementation would require: - DB25 parport plug - protoboard - 6 resistors - a way to connect a SD card (could be soldering pins directly to a SD-microSD converter and one can still swap microSD cards) - some wire Thus no ROMs, microcontrollers, special PCB, large card-edge connectors, etc, etc... I might wire one up this weekend, and just try to talk to it from a simple asm program. Joe. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem