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MBHP TV (preview)


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#1 TK.

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Posted 31 August 2003 - 04:03

How about
  • a big MTC display
  • a nice meter bridge
  • a CC parameter screen
  • a MIOS status display

on your TV?

Posted Image

is coming soon :-)

Based on the Video HowTo from Rickard Gunee http://www.rickard.gunee.com/projects/

Schematic:
http://www.ucapps.de/mbhp/mbhp_tv.pdf
(you can just re-use your existing MBHP_CORE module and add the two resistors for the Video Out)

Preview firmware:
http://www.ucapps.de...preview.syx.zip
(only prints this intro on screen)

Specs:
standalone application, display accessible via MIDI, resolution: 128x64, black-white only, currently PAL only, NTSC planned.

Best Regards, Thorsten.


#2 LO

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Posted 31 August 2003 - 08:05

wow!! thats cool
great idea
good chance to reuse the old C64 video monitor

LO

#3 Captain_Hastings

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Posted 31 August 2003 - 12:23

Good God!  :D

Imagine adding gamepads... MIOS Pong with a SID soundtrack... Yay!

#4 Steven_C

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Posted 31 August 2003 - 16:24

This is so cool! It isn't some sort of joke is it? ;D

I can't help laughing at that pixelated screen ;D :D

But that makes it all the more cheazier ;)

yes, I'm glad I didn't throw away that amiga monitor!

(also brings back memories of the C64 ads, with cheezy wooden panneled '70's TV's :))

#5 Steven_C

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Posted 31 August 2003 - 16:25

No more graphical LCD screen questions! ;)

#6 pilo

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Posted 31 August 2003 - 18:02

YESS!!!!! ;D
I want try this NOW!!!!

#7 gillesdeshays

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Posted 31 August 2003 - 18:57

absolutly amazing !

i first thinked about a joke ...  ;)

but it's real !!!!!!!!

Now i have a good think to get my girlfriend off the TV !!!

;D

#8 Guest_den_Juin_*

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Posted 31 August 2003 - 22:22

I expected you'd come with some thing like this TK.



But not within the first 10 years :o

#9 pay_c

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Posted 01 September 2003 - 00:00

I DONT BELIEVE IT! You dammit Crackhead TK!!!  :D

WOW! Thats absolutely amazing!

IN 10 YEARS WE WILL RULE THE WOOOOOOORLD!!!  ;D

#10 Guest_den_Juin_*

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Posted 01 September 2003 - 01:43

yeah, probably we will.

Something to add to yer to do list TK:
A midi based take-over-the-world-function

#11 TK.

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Posted 01 September 2003 - 05:08

Thanks! :)

I started the MBHP_TV as a new challenge to learn something new (e.g. to find a solution for an isochronous system which never gets out-of-sync), it's another topic if a display with such a low resolution is usefull or not. But it awakes some vintage feeling - if MIOS would support a keyboard and a mass storage device (PRESS PLAY ON TAPE...), you would have a complete homecomputer ;-)

The fascinating thing on this project is that you can see the execution time of a routine directly on screen. Every pixel "consists" of 4 PIC instructions executed within 400 nS - I could also display a pixel with one instruction only, but the PIC18F452 doesn't offer enough memory to store so much data.


However, the code is now released and can be found in the MIOS download section (still PAL only), the resolution is 128x64, only one  character set is supported yet (but additional fonts could be included) - character size 8x8 (16x8 display)

Following SysEx commands are available:
;    o Clear Screen:
;         f0 00 00 7e 3f 00 00 f7
;    o Set Cursor Pos and Print Characters:
;         f0 00 00 7e 3f 00 01 <pos> <char_1> <char_2> ... <char_n> f7
;    o Print Characters (don't set cursor):
;         f0 00 00 7e 3f 00 02 <char_1> <char_2> ... <char_n> f7

The MBHP_TV module will be supported by the next MIDIbox LC version :)

Best Regards, Thorsten.


#12 stryd_one

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Posted 01 September 2003 - 08:31

:-X ;D :-X ;D :-X ;D :-X ;D :-X ;D :-X ;D :-X ;D
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!DUDE!!!

***falls over***

hehehehe

my sequencer is gonna LOVE this. I love it!! I think I just officially stopped working on the UI hehehehehhee!!

TK, you're like....wow dude....That's pretty impressive :) So what's limiting the resolution anyway?

#13 DrBunsen

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Posted 01 September 2003 - 09:30

TK, you are a FREAK!!!  In a good way...  ;D ;D ;D

That would go great with a SEQ box...

Good thing we Aussies use PAL video

#14 d2k

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Posted 01 September 2003 - 15:00

lol TK, where do these ideas come from damn u!!! :D

Amazing stuff man!

Is it connected to the tv via just a regular aerial cable and then tuned in on any channel? Or have u used a scart socket and used the A/V chan?

Best

Dan

#15 TK.

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Posted 02 September 2003 - 04:14

Dan: you've to use the scart socket (A/V input of your TV)

Btw.: the next MIOS version will support a new display type #6 which redirects all print commands directly to the MIDI Out based on the new MBHP_TV protocol. By changing the device ID up to 128 "MLCDs" can be addressed in this way - not only the MBHP_TV itself, but also other "slaves" which support this protocol (example driver for a character LCD as slave will follow).

I also plan to include a "soft font" feature into the MBHP_TV which allows to create special characters dynamically like known from character LCDs - hold the line ;-)

Best Regards, Thorsten.


#16 stryd_one

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Posted 02 September 2003 - 06:02

TK you are a machine!!!!  :D

Btw.: the next MIOS version will support a new display type #6 which redirects all print commands directly to the MIDI Out based on the new MBHP_TV protocol. By changing the device ID up to 128 "MLCDs" can be addressed in this way - not only the MBHP_TV itself, but also other "slaves" which support this protocol (example driver for a character LCD as slave will follow).


I can see it now...rows and rows of TV screens displaying SID parameters, sequences, routing paths, control data.... ;D :P ;D *twitch* *twitch* I'm freaking out man!!

#17 pay_c

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Posted 03 September 2003 - 05:19

Tried it out! Cooooooooooooool!!! ;D

But to things (just questions):
I read a little about this 2TV PIC on Rickards site and two things came to my mind:
First: Hey there is a gray scale, too! (just white, grey and black, but whatever) Can that be implemented into MIOS? Its just sending the signal to Port D1 and let D0 on mass. Possibility? But on the other hand: Usefull for MIOS? Perhaps...
Second: Rickard used a slow and little PIC16C84 with a 12 Mhz Oscilator. With a PIC18F (with lets say a 24 Mhz oscillator quadrupled to 48 Mhz) the signal would be sent four times as fast and so double the vertical and horizontal resolution (256x128!!!!! *freaking out again*), or not? Possible? To much work?

These are just some thoughts, but I`m just to hot about that TV thing!! So dammit cool!!!  :D

Wont sleep to much tonight!

#18 pilo

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Posted 03 September 2003 - 15:00

hehe I think I'm going to try this this afternood! :)
maybe with a faster pic... more resolution? :)

But, is anybody here who know the "minitel"? it's a french, old, phone terminal, with a small screen... maybe usefull as a MIOS screen (and cheaper than a tv)

#19 TK.

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Posted 03 September 2003 - 16:13

The resolution isn't limited by speed, but by the available RAM.

However, the next version will support a hires mode with quadrubled resolution which will only work with "ROM fonts" and with 1 pixel distance between the 8x8 characters. This will be nice as replacement for the MIDIbox LC display, since exactly 56 characters can be displayed per line in this way.

Grayscales: not possible since two pins cannot be stimulated at the same time when the shifting method (for highest speed) is used.

Best Regards, Thorsten.


#20 Guest_den_Juin_*

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Posted 03 September 2003 - 17:55

<dreamer mode>
Maybe it's possible to implement a dedicated processor, so higher res, and maybe even colours could be possible.
</dreamer mode>

Anyway, keep up the good work TK, i see lots of potential in this new little gadget :D