That's great work! Is there enough clearance around the modern version that a 3d-printed case could fit?
On Tue, Sep 12, 2023, 01:47 Brian K. White <b.kenyo...@gmail.com> wrote: > > The unverified schematic I arrived at from beeping out an original NODE > DATAPAC is now verified. > > Based on that best guess original schematic I made a new schematic that > uses 1 256k sram instead of 8 32k sram, but otherwise replicates the > original circuit with the way the binary counters and bus latch works. > > And the new device works! > > https://github.com/bkw777/NODE_DATAPAC#minindp > > This is kind of a pointless device today because in most cases a > Backpack is more useful and practical. > > But here are a few distinguishing points: > * The driver software is only 1.4k on a 100, 1.2k on a 200, vs ts-dos > over 5k. Teeny is only 0.75k but lacks features (can't format a disk or > even list the directory) > * The DATAPAC or MiniNDP uses the system bus, leaving the serial port > available for other use. > > -- > bkw >
