On 2012-09-15, at 20:55, Konrad B wrote: > Schematic ? Well... > http://www.zimmers.net/anonftp/pub/cbm/schematics/printers/1520009.gif > > 6500/1 MPU, mask programmable. 2kB ROM, 64B RAM. Cool - one chip does it all :) Yeah - that's it. No regular ROMs and stuff.. > CSG's ones have a special "test mode" (see http://highgate.comm.sfu.ca/~rcini/classiccmp/pdf/ds_6500.pdf) The requested URL /~rcini/classiccmp/pdf/ds_6500.pdf was not found on this server. > , so they were able to dump the ROM for verification. But it is hardly documented :( :-( So far I haven't seen much on that either. Message was sent through the cbm-hackers mailing listReceived on 2012-09-15 23:00:06
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