Hydra and Pal TV n00b question

Jos Visser

Hi folks,

Bought a Hydra in the US, brought it home (Switzerland) and connected it to my TV's AV input. Modified the mars_lander_011 program to make the TV driver generate PAL output. And .... nothing. Messed around a bit but to no avail. As I am not an electronics wizard (more of a software wizard ) I am trying to understand which settings I need to make this work. As I get it I need to configure TV driver for:

- Pal
- Pins 24..31
- Mode: baseband (chroma? aural)?

Before I start hooking up a scope to the port to see what is happening, is there anyone else here that has his/her Hydra connected in a setup like this? Anything obvious I am missing?

Kind regards,

Jos Visser

Post Edited (Jos Visser) : 2/11/2010 10:19:32 PM GMT

trodoss

Hello Jos!

Unfortunately, almost all of the TV drivers that come with the Hydra are NTSC based.· I believe the Parallax TV driver can output both NTSC and PAL, which you could try to use to test.

The Boulderdash thread has a TV driver that can be configured to use PAL (the code posted by HPG)
http://forums.parallax.com/showthread.php?p=721591

There are most likely others, but I cannot think of them off hand.· Some of the code by Baggers I believe may support PAL and NTSC.

·[noparse][[/noparse]Edit:] Also, Eric Ball had posted NTSC/PAL "template" drivers.· You should be able to try that without really any configuration, as it has an 'auto detect' for the hardware in the code (PAL_colorbars.spin)

http://obex.parallax.com/objects/483/




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Game(s) Mythic Flight
Utilities Font Editors (AIGeneric, Potato_Text, etc.)

Post Edited (trodoss) : 2/11/2010 10:42:44 PM GMT

RedNifre

Keep in mind that NTSC uses a smaller resolution than PAL, so maybe it helps if you also output some black bars around the image?

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Unterwelt (My first game for the HYDRA):
http://forums.parallax.com/showthread.php?p=696204

Hydra in a LEGO NES:
http://forums.parallax.com/showthread.php?p=654788