Author
| Demo with LEDs used as VU meters
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NYYRIKKI
msx master
Posts: 1528 |  Posted: November 04 2003, 18:47 |
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(to be honest I have to look it up too... I made a routine yeaars ago using all leds but can't remember shit)
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About LED's in MSX tR:
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- Power LED can not be changed by software.
- Caps led can be changed trough PPI port C (I/O #AA) by changeing bit 6
- Kana-lock led can be changed using PSG register 15, bit 7
- Pause led can be changed trough I/O #A7 bit 0
- CPU led can be changed trhough I/O #A7 bit 7
- Diskdrive led is not that nice to use as it also changes drive motor status if disk is in the drive. This can be anyway changed trough address #7FF2, bit 4 in slot 3-2
- Rensha Turbo led is probably most hard one. I don't think that it is meat to be controlled trough software, but you can get some kind of access to it trough I/O ports #E4 and #E5... at least in tR A1ST. I remember, that I accidentally managed to change the led once, but computer also hanged and I did not do more tests. This might have been also software generated short-circuit.  Now I did few tests, but I could not repeat this effect on A1GT. These ports are usually used for changeing CPU and ROM / DRAM mode.
~NYYRIKKI
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manuel
msx guru
Posts: 3548 | Posted: October 16 2004, 15:48 |
no one knows?
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Sonic_aka_T
msx guru
Posts: 2269 | Posted: October 16 2004, 17:04 |
I bet Mi-Chi knows...
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snout
msx legend
Posts: 4992 | Posted: November 01 2004, 23:56 |
I'll try and dig through my disks with turboR software. I -know- I have the demo you're looking for... somewhere....
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BiFi
msx guru
Posts: 3142 | Posted: November 02 2004, 09:36 |
I made a little MSX-DOS command to set any of those LED's either on or off a few years ago. If someone wants it, just gimme a yell or email or something. The source of that thing is on www.hansotten.com iirc if you want to compile it yourself  |
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manuel
msx guru
Posts: 3548 | Posted: January 30 2005, 19:54 |
The two scrolls (the English one and the German one) say that the viewer is faced with a password and that the letters of it should be pressed in the end demo. However, the only thing I have seen that could be the password is "Flawil", but holding F L A W I doesn't work... ANy other ideas?
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manuel
msx guru
Posts: 3548 | Posted: February 17 2007, 14:20 |
OK, I found it: the password is GOONIES! So, press G O N I E and S at the same time in the end part and you get the music replayer. It does use the LED's, but not as VU-meters... So, this is not the demo I meant!
Robert Wilting: I haven't checked out those MCCMs yet, but do you have an idea which demo that was? I see you wrote a tip about the above (The Swiss Demo) in MCCM 75, but that is not what I meant, as I already said (the tip is a bit wrong anyway).
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AuroraMSX
msx master
Posts: 1263 | Posted: February 17 2007, 17:43 |
Quote:
| It does use the LED's, but not as VU-meters... So, this is not the demo I meant!
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Hm, wasn't it some Xelasoft demo, using FM-PAC/PCM/SCC for music (A demo or SME3 promo...) |
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