Project: 1541-III
What it does:
The 1541-
Because the circuit is based on a
Start-up screen of the 1541-III and
1541-III DTV
Current features:
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features firmware version
V08.--.-- |
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Feature |
Remark |
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Opening
.D64 image files and accessing them as if they were real 5.25" disks |
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Reading
of . Writing
is supported only within .D64 files |
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Selecting image files with common basic
commands (example) : -LOAD"$CARD",DEVICE for loading
the card’s directory or entering subdirectories -LOAD"$..”,DEVICE
return to the parent directory -LOAD"$IMAGE",DEVICE for
loading the image file |
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Support
the use of the truncated Long-File-Names to select the D64 (example): - LOAD”$FILENAME”,<DEVICE> |
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Write
support and write related commands (i.e. save, scratch, rename, replace) |
Tested in the folowing games: Int. Karate (works), Donkey Kong (works), Duck Shoot (works), Commando (saves highscore, but game crashes
when loading it, can’t see why though <help>) |
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When not possible to use the basic
selection commands, use the 3 buttons, prev, select or next to select a .D64
or parent directory or (sub)directory |
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Less weight,
low power consumption, suitable placement inside computer |
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Connection
to a graphical LCD (PCD8544) which shows: -
card initialisation information -
number of files inside the current
(sub)directory -
index number and name of selected image
file -
file information and details during
browsing with buttons -
progressbar (usefull to see how long it
takes, when loading) -
error, device, track and sector -
mode of operation (Hard-disk mode,
D64-mode) |
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V1.0:
RS232 serial port for connection to PC for uploading new firmware V1.1:
CP2102 USB-UART for connection to PC for uploading new firmware |
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Maximum
number of files in root is limitted to 512 (name stored according 8.3 format).
But because subdirectories are supported the total number of files on a
MMC/SD-card is only unlimtted by the size of the card. Keep in
mind not to store too much files inside the root or subdirectory, simply
because it would take a lot of time to load the files... and loading a very
large directory may not even fit into the limitted memory of the computer
itself. A standard VIC20 has only 3.5K available to the user. |
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MW and MR
commands to set the timing to 1540 mode . The setting to VIC20 mode is stored
to EEPROM and needs to be configured only once (if desired). Also setting the
VIC20 mode adjusts the allignment of the directory structure so it fit’s
nicely on the small screen of the VIC20. |
I.e. for 25%
faster IEC bus on VIC20 |
Scheduled
for development:
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features scheduled for development
(in other words “my list of wishes”) |
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Feature |
Remark |
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BR and BW
commands required for simple disc copying |
Routines are functional but command handling has to be done. |
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Support for T64 or other tape related files
(research required) |
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Support
for D71, D81 kind of files (research required) |
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Although not certain if it possible but a personal wish
is still the Power cartridge and/or Final cartridge support... |
Require detailed
info. Contact me if you have more information regarding these cartridges. |
Downloads:
Attention :
the downloads below can be used to build your own 1541-III. The design is based
on a 18F2620 in order to fully support future enhancements. Keep in mind that
the software is constantly being improved so visit this website from time to
time to see if updates are available. Use the bootloader in order to easily
update to new firmware versions using the serialport and a small software tool
on your PC (Windows only). For an overview of the changes within the firmware,
please read sourcecode (MAIN.C, history:)
Files required for 1541-III
firmware updates:
1541-III firmware.hex V20080227
(.ZIP) (-LATEST- .hex file,
ready for programming into PIC.)
1541-III firmware.hex V20071027
(.ZIP) (-OLD- .hex file, ready
for programming into PIC.)
1541-III firmware.hex V20070815 (.ZIP)
(-OLD- .hex file, ready for
programming into PIC.)
1541-III firmware.hex V20061215 (.ZIP)
(-OLD- .hex file, ready for
programming into PIC)
1541-III
v1.0 (RS-232 version)
How
to upload firmware (RS232) (.PDF) (manual:
how to update your 1541-III’s firmware using a Windows PC)
Updaten
1541-III firmware (RS232)(.PDF) (DUTCH
version of ‘how to upload firmware’ using a Windows PC)
Windows
app for updating firmware (.ZIP) (application
(by: Claudiu Chiculita) to update the firmware of your 1541-III)
Linux app for updating
firmware (.tar.gz) (application
(by: Hannu Nuotio) to update the firmware of the 1541-III v1.0)
1541-III
v1.1 (USB version)
Updaten 1541-III firmware (USB) (.PDF) (DUTCH version of ‘how to upload firmware’
using a Windows PC)
How
to upload firmware (USB) (.PDF) (manual:
how to update your 1541-III’s firmware using a Windows PC)
USB driver for the 1541-III (.ZIP) (a driver that is required to
upload new firmware for the USB equiped 1541-III)
Windows
app for updating firmware (.ZIP) (application
(by: Claudiu Chiculita) to update the firmware of your 1541-III)
1541-III Manuals, promotion
material and related documents:
User manual 1541-III
(.ZIP) (the main manual
of the 1541-III)
Promotion
‘flyer’ (.PDF) (a
simple ‘flyer’ to hand out at meetings, saves the trouble of endlessly
explaining my project)
IEC-related documents (.ZIP) (a collection of documents
describing IEC communication on CBM equipment)
1st
promotional movie (YOUTUBE) (my
first promotional film, actually just a test to try out video editting
software)
2nd promotional
movie (YOUTUBE) (my second
promotional film, a bit longer, in color and intended to be fun to watch)
Software tools for the
1541-III:
Basictool 1541-III (.ZIP)
(C64 Basic tool for
chnaging special drive settings of the 1541-III)
Empty D64 (.ZIP) (For those who
require an empty .D64 file but do not know how to make one)
SDbrowse (.ZIP) (SD-browse,
the latest version and sources, read the readme inside for more info)
Files required for
development/building of the 1541-III:
Source code, V20080227 (.ZIP) (-LATEST-
complete sources and project directory of 1541-III firmware)
Source code, V20071027 (.ZIP)
(-OLD- complete sources and project directory of 1541-III firmware)
Source code, V20070815 (.ZIP) (-OLD- complete sources and project
directory of 1541-III firmware)
Source code, V20061215 (.ZIP) (-OLD- complete sources and project
directory of 1541-III firmware)
Schematic (.PDF) (the schematic
of the 1541-III v1 PCB, very usefull if you want to hack it… (can’t see why J))
Printed Circuit
Board (.ZIP of .PDF) (sheets of all
individual layers, so you can etch the PCB yourself (not for beginners))
Gerber files of PCB
(.ZIP) (a gerber file for each individual
layer)
Bill of materials
(.txt) (a
list of all the parts you will need to build a 1541-III)
Bootloader for
PIC18F devices (link) (a bootloader
is required to re-program the PIC over the serial port)
Adding
a nokia display (.PDF) (a small
document to describe the basics required to use this display)
Frontside + mech drawing (.PDF) (hole positions and 1541-III’s front, print it on
stickerpaper and stick it on your 1541-III’s case)
Power connector adapter (.PDF) (an adapter designed for stealing power
directly from your C64’s power supply)
Expansion
port powercon (.PDF) (single
sided PCB designed for stealing power from your C64’s expansion (cartridge)
port)
How to
order:
Please keep in mind that the 1541-III is not a product, it is a hobby
project. For those who whish to own a 1541-III and can’t build one themselves
contact me at mailto:jd1541@hotmail.com
1541-III related projects:
1541-III DTV
The 1541-III stripped down to a
version perfectly suited for use INSIDE the C64-DTV. A great idea made into a
real product by Pyrofer. This is a project that uses the 1541-III’s source-code
on a slightly different PCB in order to suit the C64DTV. For info, updates and
support about this project refer to
Pyrofers
website : http://www.pyrofersprojects.com/15413.php
Pyrofer
also has a very usefull forum which is worth visiting, even if you do not have
a DTV:
http://www.pyrofersprojects.com/forum/index.php?sid=e0ce333e3c4e6494995b5c2d30868bc1
MMC2IEC
Lars
Pontoppidan has made an AVR version the 1541-III DTV. This version is has very
few components and is easy to rebuild. His project’s development was stimulated
by the 1541-III project and is rewritten espically for the AVR microcontroller.
Read all about it at his website and be amazed by this tiny PCB that will
easily fit into your C64DTV. For info, updates and support about this project refer to
Lars’s website : http://pontoppidan.info/lars/index.php?proj=mmc2iec