Autor: Tomasz Finke (tom_at_sprocket.ict.pwr.wroc.pl)
Data: Mon 19 May 1997 - 14:13:52 MET DST
Arek Bielawski (bielak_at_polbox.com) wrote:
> Poszukuje dokumentacji na wykonanie we wlasnym zakresie przewodu MIDI.
> Posiadam klawisz ROLAND E-38 ze zlaczem MIDI IN/OUT i RS 232
> W PC mam GAMEPORT,PS2 i standartowe porty komunikacyjne.
> Osoby mogace mi pomoc bardzo prosze o kontakt
Z Gravis Ultrasound FAQ v.2.02:
Generic Midi Out/In/Through Circuit
===================================
The following shows a typical OUT, cable, and IN circuit
MIDI OUT port ---->|<- cable ->|<---- MIDI IN port +5V
270 |
+5V DIN DIN +--\/\/\/-+
| 220 +-+ +-------+ +-+ 220 +--------+ |
|\ +-\/\/\/--|4|-|-------|-|4|--\/\/\/--| OPTO |-+-+- UART RXD
UART | \ | | | | | | |ISOLATOR| |
TXD ---| \---\/\/\/--|5|-|-------|-|5|----------| |-+ |
| / 220 | | +-------+ | | +--------+ | |
| / +--|2|-+ +-|2| 6N138 GND|
|/ 7407 | +-+ +-+ |
GND |
|
+-------------------------------------------+
|
| +5V DIN
| | 220 +-+
| |\ +-\/\/\/--|4|
+--| \---\/\/\/--|5| MIDI THRU
| / 220 | |
| / +--|2|
|/ 7407 | +-+
GND
I jeszcze:
Gravis Ultrasound Circuit
=========================
15 pin D connector
220R
pin-1 +5v ----+--------------------------/\/\/\---------------\
| \ 4
| Gnd--2 MIDI OUT
| |\ |\ 220R / 5
pin-12 tr >---|------| o-----| o----------/\/\/\--------------/
| 13|/ 12 11|/ 10
| 220R
+---------------------------/\/\/\-------------\
| \ 4
pin-15 rx <---|--------------------+ Gnd--2 MIDI THRU
| |\ |\ | 220R / 5
| +--| o-----| o---+-------/\/\/\------------/
| | 1|/ 2 3|/ 4
| |
| +------+
| 270R | 220R
+--/\/\/\--+ +------+----------/\/\/\--------\
|B |C |A | \ 4
+-|----------|----|-+ | MIDI IN
| 8 6 2 | ----- / 5
| | / \ IN914 or IN4148 +-/
| 6N138 | --- |
| | | |
| 5 3 | | |
+------------|----|-+ | |
| |K | |
pin-5 Gnd --------------+ +------+----------------------+
Inverters are 74LS04. (This is a 14-pin IC containing 6
inverters. Connect pin 14 to +5V, pin 7 to GND)
Leave pin 2 of the MIDI IN unconnected (Don't connect to ground).
Szczegoly: ftp://ftp.pwr.wroc.pl/pub/ultrasound/info/
Tomek
To archiwum zostało wygenerowane przez hypermail 2.1.7 : Tue 18 May 2004 - 16:06:42 MET DST