C64DTV: Unterschied zwischen den Versionen

(6 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]]

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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:

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|-

|}

== 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]]