C64DTV: Unterschied zwischen den Versionen

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+__TOC__
 [[Bild:C64DTV_orig.png|thumb|right|200px|Before]]
 [[Bild:C64DTV_mod1.png|thumb|right|200px|After]]
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 == WTF? ==
 The C64 Direct-to-TV, called C64DTV for short, is a single-chip implementation of the Commodore 64 computer, contained in a joystick with 30 built-in games ([http://en.wikipedia.org/wiki/C64_Direct-to-TV C64_Direct-to-TV]).
+The games are stored on a built-in 2MB flash memory.
 The joystick can be bought at Conrad (but I've also seen it at Zielpunkt) for ~25 Euros.
 This is an amazing piece of hardware, but comes with a few weaknesses:
-* Only 1 joystick, no support for two-player games
+* Only one joystick, no support for two-player games
-* Only a limited selection of games
+* A limited selection of games
 * The quality of the joystick itself is far from the gold standard (Competition Pro)
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 == Project Overview ==
-The goal is to add ports for two external joysticks, a PS/2 keyboard and a disk drive (1541 compatible).
+The goal is to remedy the stated weaknesses by doing the following:
+* Add ports for two external joysticks => support multi-player gaming and we can use better joysticks
+* Add connectors for a PS/2 keyboard and a 1541 compatible disk drive => load games from 5.25" floppy disks
 === Part List ===
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 == Connectors ==
-I have fitted the connectors onto the casing of the joystick, using a dremel and a glue gun (NB! no gaffa was used in this project :).
+I have fitted the connectors onto the casing of the joystick, using a dremel and a glue gun (NB! no gaffa was used in this project :)).
 Connectors, seen from the front:
+{|
+|valign="top"|Joystick
+{|border="1" cellspacing="0"
+|colspan="2"|[[Bild:joystick.png|128px|Joystick, male]]
+|-
+|1 || Up
+|-
+|2 || Down
+|-
+|3 || Left
+|-
+|4 || Right
+|-
+|6 || Fire
+|-
+|6 || +5V
+|-
+|8 || GND
+|-
+|}
+|valign="top"|Keyboard
+{|border="1" cellspacing="0"
+|colspan="2"|[[Bild:keyboard.png|80px|PS/2 keyboard, female]]
+|-
+|1 || DTA
+|-
+|3 || +5V
+|-
+|4 || GND
+|-
+|5 || CLK
+|-
+|}
+|valign="top"|Disk drive
+{|border="1" cellspacing="0"
+|colspan="2"|[[Bild:diskdrive.png|DIN6 disk drive, female]]
+|-
+|2 || GND
+|-
+|3 || ATN
+|-
+|4 || CLK
+|-
+|5 || DTA
+|-
+|}
+|}
+== Connecting to the PCB ==
+All soldering should be done on the backside of the PCB. Note that some soldering points are located under the rubber buttons. For flexibility, I built internal connectors to easier be able to disconnect and debug the connectors.
+{|
+|[[Bild:solderpoints.png|thumb|200px|soldering points on PCB]]
+|[[Bild:internal1.png|thumb|200px|Keyboard && disk connectors]]
+|-
+|[[Bild:internal2.png|thumb|200px|Joystick connectors]]
+|[[Bild:internal3.png|thumb|200px|PCB with connectors]]
+|}
+<p>
+== Power Supply ==
+When connecting peripherals to the joystick, it will not be able to run from batteries anymore, so I'm running it from a DC power supply. Since the joystick assumes a 5V power supply, I've build a 5V voltage regulator circuit. The regulator is connected to the output of the battery pack (see picture). NB! Remove batteries before connecting external power.
+{|
+|[[Bild:regulator_schem.png|200px|regulator schematics]]
+|[[Bild:regulator.png|200px|+5V voltage regulator]]
+|[[Bild:regulator_conn.png|200px|regulator connection]]
+|}
+== Result ==
+[[Bild:system.jpg|left|thumb|200px|Modded joystick in action]]
+== TODO/ideas ==
+* Reprogram the built-in flash memory with an updated game collection
+* Add a memory card reader which supports reading disk images stored on a CF/SD/XD/USB-stick/whatever memory card.
+For comments, questions, ideas etc., contact [[Benutzer:MariusKintel|Marius]]
-[[Bild:joystick.png|128px|Joystick, male]]
+[[Kategorie:WhateverLab]]
-[[Bild:keyboard.png|80px|PS/2 keyboard, female]]
+[[Kategorie:Projekte]]
-[[Bild:diskdrive.png|DIN6 disk drive, female]]