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MariusKintel (Diskussion | Beiträge)
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(8 dazwischenliegende Versionen von einem anderen Benutzer werden nicht angezeigt)
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__TOC__
[[Bild:C64DTV_orig.png|thumb|right|200px|Before]]
[[Bild:C64DTV_mod1.png|thumb|right|200px|After]]
[[Bild:C64DTV_mod2.png|thumb|right|200px|After]]
== WTF? ==
== 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 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]).
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.
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:
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)
* The quality of the joystick itself is far from the gold standard (Competition Pro)


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== Project Overview ==
== 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 ===
=== Part List ===
Zeile 25: Zeile 33:
* 2x Buchsenleiste 32-polig          740438          2.30
* 2x Buchsenleiste 32-polig          740438          2.30
* 1x 5V 7805 Spannungsregler        179205          0.65
* 1x 5V 7805 Spannungsregler        179205          0.65
* 1x 100 uF Elko
* 1x 100 uF Elko (we've got more of these in the lab)
* 2x 100 nF Kondensator
* 2x 100 nF Kondensator (we've got more of these in the lab)
 
== 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 :)).
 
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]]
 
[[Kategorie:WhateverLab]]
[[Kategorie:Projekte]]
Abgerufen von „https://metalab.at/alpakaparty/C64DTV“