Jump to content


Out of the Pack

Controlling the Cassette Motor Control Bit on the A8

Posted by Pack007, 21 September 2017 · 123 views
Cassette, Motor Control
The Cassette Motor Control(CMC) bit in the Port A Controller (PACTL ($D302)) address is going to be used as feed back from the Atari8 to the Arduino in the digital horn project.  This bit controls the logic state of Pin 8 on the SIO port. This bit has been used to control the data cassette motor.  If you're not using the bit to load data from th...

DH100-->A8 MIDI Interface

Posted by Pack007, 11 September 2017 · 138 views
dh100, midi
DH100-->A8 MIDI Interface I have 9 optocouplers setup to receive data from the Arduino for the SAM Rock You project.  Eight for the MIDI data byte from the Arduino and 1 to signal the Trigger when new data is ready to be read by the Atari8.  A tenth optocoupler needs to  be added so that the A8 can let the Arduino know that it is ready for the next byte.

The Casio DH-100 project plan

Posted by Pack007, 20 August 2017 · 268 views
DH-100, MIDI
The Casio DH-100 project plan Between the time that the Casio DH-100 Digital Horn was introduced and todays prices on eBay, the price dropped to the point where it seemed to be a bargain.  I was fortunate enough to have pulled the batteries (15 years ago), so there was a good chance that it would still work. 
Now I want to build an Atari8 sound module to accept MIDI i...

CRUTCHFIELD Spring 1982 catalog

Posted by Pack007, 05 August 2017 · 275 views
CRUTCHFIELD Spring 1982 catalog A co-worker gave me his copy of the Spring 1982 Crutchfield catalog knowing I was looking into buying my first computer.  This catalog contained 15 pages of Atari product information (page93-107). I was impressed with the graphics capabilities but the onscreen lower case letters made the 800 my first computer. I have never regretted that de...


Posted by Pack007, 13 July 2017 · 330 views
MIDI, Arduino, SAM
S.A.M. RAAKS YUW I've added a third computer to the MIDI chain.  Computer #1 plays drums, and Computer #2 runs S.A.M. and Computer  #3 plays the lead,  .  Each computer had a specific BASIC program written to read data from the joystick ports. For this example, Queen's -" We Will Rock You" was arranged for the three computers. You can listen to the MP3...

MIDI MUSIC SYSTEM and Two Synth Drums

Posted by Pack007, 27 May 2017 · 311 views
Midi, mms, drum
A second Atari8 running SYNDRUM3.BAS was added to the MIDI chain without timing problems.  There didn't seem to be a delay between the sounds from the two computers when playing 2 drum sounds on the same beat.   Listen to the drum patterns and judge for yourself.

Since the SYNDRUM program onl...

MIDI MUSIC SYSTEM and one Synth Drum

Posted by Pack007, 20 May 2017 · 254 views

MIDI MUSIC SYSTEM and one Synth Drum Last time the MIDI keyboard was talking to the Atari 8 running SYNDRUM3.BAS.  This time the MIDI keyboard will be replaced by an Atari8 running MIDI MUSIC SYSTEM software(MMS).  I needed to estimate the SYNDURM program's ability to respond to some faster tempos.
I have a good idea of the SYNDRUM software's capabilities but had to tak...

My Ultimate Atari8 MIDI Rack

Posted by Pack007, 02 May 2017 · 251 views

I was getting a second Atari 8bit operational to use as a MIDI SynthDrum sound module controlled by the first running the MIDI MUSIC SYSTEM and MIDIMAX,  when I had to leave for a babysitting gig in Rochester.  I knew I would have some free time and took a pencil and paper to sketch out a plan for my ultimate 8-bit MIDI rack.
At the end o...

Drum Synth- Antic 2/85, MIDIfied

Posted by Pack007, 18 March 2017 · 395 views
Drum kit, MIDI, Arduino
Drum Synth/Bass Synth by Glen Gutierrez are 2 programs featured in the Antic Feb. 1985 issue.  Antic Editor: "These are the most realistic instrument simulations we've ever heard at Antic."  The Drum Synth program has been MIDIfied to except data from an Arduino+MIDI shield through the joystick port.  Now the drums can be beat from a MIDI k...

A8 MIDI and the Atari Age of rediscovery

Posted by Pack007, 03 March 2017 · 296 views
MIDI, MMS, MIDIMate, midimax
When I started the Computer Blues Project I really thought there was no way to program the MIDI MATE from BASIC and that using the RS232 port was an option.  If you don't have a MIDI Mate or MIDI Max, it is an option. If you do, there are ways of programing BASIC MIDI applications for them.   I am just now starting to discover those me...

Recent Comments

Latest Visitors