99 lines
4.0 KiB
Plaintext
99 lines
4.0 KiB
Plaintext
SDrive-MAX
|
|
==========
|
|
|
|
SDrive-MAX is a new disk drive and tape emulator for Atari 8bit computers
|
|
based on sdrive-ng ported to arduino and enhanced with a touchscreen display
|
|
for controlling. So it can work without sdrive software on the Atari, but
|
|
could be used anyway. Changing disk images during live operation is one of the
|
|
most important features, i think.
|
|
|
|
What do you need?
|
|
|
|
- an arduino UNO with atmega328p
|
|
- an Elegoo 2,8" TFT-Touchscreen Shield or similar with ILI9341 compatible
|
|
controller using 8bit parallel mode(i think, that one from the adafruit
|
|
project is the same). Touchlines must be wired as followed:
|
|
Update! Touchlines are now auto detected!
|
|
|
|
X+ <-> 8
|
|
X- <-> A2
|
|
Y+ <-> A3
|
|
Y- <-> 9
|
|
|
|
The other lines are always the same, as far as i could see
|
|
(TFT-Data 2-9, -Ctrl. A0-A4, SD 10-13). In doubt, ask!
|
|
|
|
Update! Other displays with one of the following chip are now also supported:
|
|
ILI9329, ILI9340, HX8347G, HX8347I
|
|
- a diode 1N4148 or similar - Update!
|
|
better use a schottky diode
|
|
- a micro SD-Card(SD or SDHC)
|
|
- some cable and connectors to Atari's SIO-Port
|
|
- avrdude Software for firmware programming
|
|
|
|
Wirering Arduino <-> Atari-SIO:
|
|
|
|
TXD <-> Pin 3 (Data-In, over the diode, cathode to arduino)
|
|
GND <-> Pin 4 (Ground)
|
|
RXD <-> Pin 5 (Data-Out)
|
|
A5 <-> Pin 7 (Command)
|
|
* +5V <-> Pin 10 (+5V/Ready)
|
|
|
|
*Optional, if you want power from Atari, but then you can't use Display
|
|
while Atari ist powered off!
|
|
Update! We strongly recommend to use an external power supply, because the
|
|
Atari is specified at 50mA max., and Sdrive-MAX needs about 150mA!
|
|
Voltage drop on the SIO lines will make curious problems especially in
|
|
conjunction with other devices!
|
|
|
|
Firmware programming:
|
|
|
|
First use the eeprom-writer.hex to set the correct values to the EEPROM!
|
|
Wait until the writer has done, then programm the SDrive.hex into the flash.
|
|
That's it!
|
|
|
|
Display usage:
|
|
|
|
- On first start follow touching the calibration crosses. You can redo this
|
|
at any time by hold touching during startup. This have to be also done,
|
|
if you have changed the display rotation.
|
|
- Press drive buttons in the middle to select the actual boot drive (D1:)
|
|
(on startup always the internal drive D0: with SDRIVE.ATR loaded is selected
|
|
for old sdrive(-ng) compatibility)
|
|
- Press drive buttons on the left do deactivate the drive
|
|
- Press dirve buttons on the right at the disk logo to insert an image
|
|
- D0: can only be selected as boot drive, not changed
|
|
- If you want to boot from an external drive, select an empty drive slot as D1:!
|
|
- Press on the New button will create a new image on the selected drive
|
|
during the next format command
|
|
- Press on the output window at bottom will open SIO debug mode. To close
|
|
press anywhere on the screen
|
|
- File select window should be self descripting
|
|
- To save selected images on EEPROM, press the Cfg button, highlight
|
|
the SaveIm button, and press Save
|
|
- If you want also to boot from drive 1 by default, highlight the BootD1
|
|
button too before pressing Save
|
|
- The "1050" option in Cfg menu uses timing for 1050 drive on ATX files,
|
|
instead of 810
|
|
- Do not power off, while the red signal on top left of the screen appears,
|
|
then the write cache was not written to SD!
|
|
|
|
Tape operation:
|
|
|
|
- point the actual boot drive (D1:) to an empty slot(some loader won't start,
|
|
if a disk drive is active)
|
|
- press Tape: button and select an image of type FUJI or raw binary
|
|
- hold down the START & OPTION keys on the atari and power on
|
|
- press any key to start tape operation after the burp
|
|
- and press the Start button on sdrive-max immediately
|
|
- if a multi stage loader requires a key press to go on, then do this quick,
|
|
because the tape does not hold! (we have no motor signal connected)
|
|
- to stop hold down the Start button until the next block loading
|
|
- the tape is automatically rewind, so you could start again from beginning
|
|
at this point
|
|
- press the Turbo button, if you want to enable a 1000 baud transmission
|
|
- exit ends the tape emulation
|
|
- you can also load basic files with CLOAD, if you are lucky :)
|
|
|
|
(by KBr from forum64.de)
|