Hallo Gordon, > In theory, a 6532 RIOT and a small PROM can be combined > on a little adapter board to replace a RRIOT Unfortunately it isn't that simple, please have a look at my site: http://www.baltissen.org/newhtm/6530.htm One 6530 isn't the other. The idea with the board can only work if you know the exact behaviour of the used 6530. A friend of mine is going to test if the 901885-04 inside a 1001/8250LP can be replaced by the 901885-01 from the full height 8250. Having only one spare 901885-04 myself, I think it is time to find out myself how this 6530 looks like. The replacement board idea worked for the KIM-1, C= used the same idea themself (I only found out much later that my idea wasn't that original), so why shouldn't it work here as well? > it should be possible to do the entire work of a RRIOT with > a relatively cheap modern FPGA, including the ROM function. In theory yes, but there are several problems IMHO: - modern FPGAs aren't 5V compatible and therefore need buffers. - they need an EEPROM to program the FPGA at power up. And during that programming the 6504/6502 cannot start up, how are you going to tell that the 6504/6502? - a 6532 board can be soldered by someone with reasonable soldering skills. The FPGA board has to be made by professionals, I wonder what the cost will be at the end. - as said before, one 6530 isn't the other: how can somebody reprogram the EEPROM so this 6530FPGA can be used in another Commodore device? But if these problems have been solved and the price is right, I'm the first one to buy at least two of these devices. -- ___ / __|__ / / |_/ Groetjes, Ruud Baltissen \ \__|_\ \___| URL: Ruud.C64.org De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen. APG Algemene Pensioen Groep NV is gevestigd te Heerlen en is ingeschreven in het handelsregister van de Kamer van Koophandel Limburg onder nummer 14099617 The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose its contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission. APG Algemene Pensioen Groep NV is registered in the trade register of the Chamber of Commerce Limburg, The Netherlands, registration number: 14099617 Message was sent through the cbm-hackers mailing listReceived on 2012-06-19 06:00:05
Archive generated by hypermail 2.2.0.