display in use (top left hand corner)

We got a [pile of Control Tower displays from Schiphol airport (or Eurocontrol, etc)] used for tracking what is in the air.

They are basically small 2-3 CPU boards on a common RS 485 bus or on RS 232. One CPU is purely for programming. The other is the main board and handles the traffic on the bus (it may be ASTERIX format?) and the other handles the display. They are interconnected by a TTL serial on 9600 8N1. Each box also contains a high quality PSU.

The programming chip is also 9600 8N1 and contains some debugging tooling. Photo below shows the testpoints used for programming.

But easiest may be to use normal ATMEL programmeing on MISO/MOSI - which are nicely broken out on the connector.

Code

Some fairly functional code: https://github.com/MakerSpaceLeiden/AirtrafficControlDisplaysSchiphol

Bestand:Schiphol-first-light.mov
grote (50229) display eerste test-tekst (youtube)

Schiphol Air Traffic Control displays

<tabs>

main board 50xxxmain board 50xxx

Main Board 50XXX series

<form id="tabs-inputform" class="tabs tabs-inputform" action="#"></form><input id="Tabs_1" class="tabs-input" checked="checked" form="tabs-inputform" type="checkbox" /><label class="tabs-label" for="Tabs_1">main board 50xxxmain board 50xxx</label>Connection on the main bord - top row near the yellow 'TOP1' label. Shared by all 50XXX boards.Wiring / pinout main CPU board<img src="/mediawiki/images/thumb/c/cd/Radarboard-pinout-main.jpg/480px-Radarboard-pinout-main.jpg" srcset="/mediawiki/images/thumb/c/cd/Radarboard-pinout-main.jpg/720px-Radarboard-pinout-main.jpg 1.5x, /mediawiki/images/thumb/c/cd/Radarboard-pinout-main.jpg/960px-Radarboard-pinout-main.jpg 2x" alt="wiring for programming" width="480" height="297" />.

TOP 1	SCK of CPU display board
TOP 2	MISO of CPU display board
TOP 3	MOSI of CPU display board
TOP 10	RST of CPU display board
TOP 13,14	TX/RX of CPU display board
BOT far left/right	Power

Progamming cable ATMEL <img src="/mediawiki/images/thumb/3/38/Atmel-isp-pinout.png/180px-Atmel-isp-pinout.png" srcset="/mediawiki/images/thumb/3/38/Atmel-isp-pinout.png/270px-Atmel-isp-pinout.png 1.5x, /mediawiki/images/thumb/3/38/Atmel-isp-pinout.png/360px-Atmel-isp-pinout.png 2x" alt="Atmel-isp-pinout.png" width="180" height="70" /> to which this needs to be connected.

board 50.028board 50.028

Board 50.028

board 50219board 50219

Board 50219

board 50226board 50226

Board 50226

board 50227board 50227

Board 50227

board 50228board 50228

Board 50228

board 50229board 50229

Board 50229

board 7003-asyboard 7003-asy

Board 7003-asy

Om een van de hierboven ge-"transclude"d pagina's te wijzigen, bezoek de pagina via Categorie:DisplayBoardsSchiphol.

Datasheet displays

50228 and 50229 use PD44x (PD4435, red) displays. 50.028 and 50219 use DLO3416 (red). 50227 uses DLO1414 (smaller 4-digit display, red). 7003-assy uses PD2573 (green).

PD44x
Code in https://github.com/MakerSpaceLeiden/AirtrafficControlDisplaysSchiphol/blob/main/shared/pd44.c