User Tools

Site Tools


projets:fuz:duhamel_flipdot

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
projets:fuz:duhamel_flipdot [2020/04/09 20:17]
lomanic add log from last reverse engineering attempt months ago
projets:fuz:duhamel_flipdot [2020/04/09 20:34] (current)
lomanic [Log] typofix
Line 7: Line 7:
   * Owner: [[:​user:​Lomanic]]   * Owner: [[:​user:​Lomanic]]
   * Participants:​ [[:​user:​Fabien]],​ you?   * Participants:​ [[:​user:​Fabien]],​ you?
-  * Status: **alpha**+  * Status: **alpha** 
 +  * Project created on **Sat 25-01-20** by **[[user:​lomanic|lomanic]]**
  
 ===== Goals ===== ===== Goals =====
Line 21: Line 22:
 [[:​user:​Fabien]] and [[:​user:​Lomanic]] (Fabien mostly :-D) barely scratched the surface of the flipdot during one Saturday afternoon of tracing its PCB and components, what we found: [[:​user:​Fabien]] and [[:​user:​Lomanic]] (Fabien mostly :-D) barely scratched the surface of the flipdot during one Saturday afternoon of tracing its PCB and components, what we found:
   * the fluorescent light works, unfortunately I don't remember the DC voltage as it was months ago… :-(   * the fluorescent light works, unfortunately I don't remember the DC voltage as it was months ago… :-(
-  * there'​s an antique Lattice in here ([[https://​www.latticesemi.com/​-/​media/​LatticeSemi/​Documents/​Solutions/​Packaging-Solutions/​ispLSI-2032_A-Data-Sheet.ashx?​la=en|Lattice ispLSI 2032 80LJ]] H907B01). Dumping its memory would really hard (as in, find a computer running DOS/NT with the right hardware to talk to it and try to dump that, then… try to make something of the binary returned!!) and useless, this is a black box and should be swapped for an ESP+  * there'​s an antique Lattice in here ([[https://​www.latticesemi.com/​-/​media/​LatticeSemi/​Documents/​Solutions/​Packaging-Solutions/​ispLSI-2032_A-Data-Sheet.ashx?​la=en|Lattice ispLSI 2032 80LJ]] H907B01). Dumping its memory would be really hard (as in, find a computer running DOS/NT with the right hardware to talk to it and try to dump that, then… try to make something of the binary returned!!) and useless, this is a black box and should be swapped for an ESP
   * we were able to manually flip some dots by applying current on some traces on the back of a module. We were also able to flip a line but without a lot of logic, using an Arduino. Next step is to put an ESP in place of the Lattice and try to flip some dots from the ESP, should be way easier.   * we were able to manually flip some dots by applying current on some traces on the back of a module. We were also able to flip a line but without a lot of logic, using an Arduino. Next step is to put an ESP in place of the Lattice and try to flip some dots from the ESP, should be way easier.
   * we weren'​t able to find a serial-based or CAN-based protocol from the weird plug, where we would have been emulating the original "​computer"​ to send commands to the display   * we weren'​t able to find a serial-based or CAN-based protocol from the weird plug, where we would have been emulating the original "​computer"​ to send commands to the display
- 
-<WRAP notice round box 70%> 
-===== Follow-up ===== 
-  * Project created on **Sat 25-01-20** by **[[user:​lomanic|lomanic]]** 
-</​WRAP>​ 
  
  
projets/fuz/duhamel_flipdot.1586456245.txt.gz · Last modified: 2020/04/09 20:17 by lomanic