Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: keropi on June 27, 2006, 03:37:31 PM
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Where is pin1 of the clockport on KickflashOS4???? I need to install a subway there...
lol, what a mess! :laughing
(http://amiga.resource.cx/gallery/Kickflash.jpg)
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Errr.... you have a 50/50 chance of getting it right! :-)
Seriously, I'm sure you're aware that you really need to know where pin 1 is before plugging anything in...
- Ali
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hehe, Ive just read the manual and thats as helpfull :-/
"Please mind that
the orientation of the port is geared toward expansions by individual Computers,
because other modules might not fir mechanically, or only fit the wrong way
round. The Silversurfer for example only fits the right way round, but other
expansions will not fit correctly. If you start the computer with such an improperly
installed clockport module on Kickflash, the module and Kickflash might be
damaged. This is the case with all clockport expansions by RBM, and for example
the Melody1200. Please check back with the vendor of the clockport module to
find out if it can work on Kickflash. Damages caused by wrong installation are of
course not covered by the warranty."
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Hehe!
Translation: we're not going to tell you which way you should plug it in, but if you get it wrong, your warranty is invalid!
Nice! :-)
- Ali
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There's only the hard way to go then... looking at the back of the kickflash one can be pritty sure the thick line going right next to the printed "42" is power. If you're lucky you'll find a simular fat line on your clockport hardware and then it's just a matter of maching it up. :)
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Look at the reverse side of the board. Usually pin #1 is a square and the other pins are rounded.
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eerrrmmm, no?
(http://amiga.resource.cx/gallery/Kickflash-back.jpg)
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First of all, the clockport does not have a "Pin 1". This is because the part of the clockport connector, that would have this pin, is usually not populated.
Clock Header Pinout information
Type: 22-pin Male DIL Header
20 22 24 26 28 30 32 34 36 38 40
19 21 23 25 27 39 31 33 35 37 39
19: GND Ground 30: A2 Address Bus Bit 2
20: +5v +5v DC 31: D23 Data Bus Bit 23
21: INT6 Interupt Request 32: D22 Data Bus Bit 22
22: _SPARE_CS 33: D21 Data Bus Bit 21
23: _RTC_CS Real Time Clock CS 34: D20 Data Bus Bit 20
24: _PWR_BAD 35: D19 Data Bus Bit 19
25: _IORD IO Read 36: D18 Data Bus Bit 18
26: _IOWR IO Write 37: D17 Data Bus Bit 17
27: A5 Address Bus Bit 5 38: D16 Data Bus Bit 16
28: A4 Address Bus Bit 4 39: GND Ground
29: A3 Address Bus Bit 3 40: +5V +5v
Note that the GND and Vcc pins are nearly symmetrical on both ends of the connector.
The pin on the Subway with an arrow is GND, and as there is a transistor
close to this end, I assume this pin is 19 (the transistor is used for the
INT6 line).
Now on Kickflash you should be able to trace the corresponding INT6 line
directly to the zorro connector. Either that or check for _RTC_CS probably
not connected. I *assume* that _RTC_CS is close to the 42 on the left hand
side (bottom view), as the other side looks like the 8 bit data bus.
I would guess the Pin 20/19 is on the right hand side of the top view
picture. This means that the subway should be connected with the arrow pin
on the right hand side of the cable (or closer to the middle than to the
outside of the kickflash board).
This is only a guess. I went to the same hell when connecting a MP3@64 on
my highway...
Good luck. Don't blame me, if this stuff is wrong. Ask Jens and Michael for
safe information ;)
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Look at the pinout of that connector. If you reverse it you swap Power and Ground. That is guaranteed to break almost anything plugged in back to front :(
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luckily we have this (http://www.amiga.org/gallery/index.php?n=1556=13) as a guide... I am curious for the mp3@64 though... can amiga use it? platon42?