Vhd interface for victor hc90/95

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بواسطة popolon_

Champion (420)

صورة popolon_

02-04-2023, 15:21

ok, I got e-mail that now the manual shuold be in f i l e h u n t e r ... in Manuals folder

بواسطة popolon_

Champion (420)

صورة popolon_

02-04-2023, 15:45

I looked at Sharp X1 Road Blaster cassette dump using x1tape program, and in that binary there is almoust same commands as given to MSX VP commands:
H01
RS0F0
M2
M5
I0
R1
R2
R3
E
S+0
G00000
P
RG
U0
U1
that RS0F0 was also in MSX case used in Thunder storm game, but that is not mentioned in IF-7900 manual...
and RG, R1-R3 are not in manual either, so what would those be...or would those actually be read operations, so RG would be reading G, and R1-R3 would be status command read as in MSX case are S1-S3...
So maybe MSX interface + MSX specific VHD player could be used in Sharp X1 case also, but the problem is how to adapt that (maybe timing issues and also that info how X1 checks is parallel or serial communication used, in this case parallel operation would be used).
I am trying to dump Thunder storm X1 game to really make comparison about these commands between MSX and X1, but i got errors every time and no usable data at all.

بواسطة popolon_

Champion (420)

صورة popolon_

02-04-2023, 17:14

Quite strange that the manual says that CALL VHD also works in HD-7800 player, where there is no VHDpc logo? There is no mention that it does not work in that player. Only VP command L is not supported by HD-7800, and some M mute command behave differently.

بواسطة mars2000you

Enlighted (6556)

صورة mars2000you

02-04-2023, 17:18

Yes, you need to combine with the flyer to get a more accurate info about HD-7800.

بواسطة popolon_

Champion (420)

صورة popolon_

02-04-2023, 17:19

by the way, HD-7500 player does not have din-13, but that din-8 connector for AHD.
and HD-7100 player does not even have any AHD port.

بواسطة mars2000you

Enlighted (6556)

صورة mars2000you

02-04-2023, 17:29

It means that both the manual and the flyer are not perfect!

بواسطة mars2000you

Enlighted (6556)

صورة mars2000you

03-04-2023, 23:43

Just finished the update of the CALL VP page Smile

بواسطة popolon_

Champion (420)

صورة popolon_

04-04-2023, 06:45

Thanks! By the way the AC command example is missing equal sign (between C and 12) and plus sign (between S and 0). Or is wiki page just not able to show these kind of text combinations as plain text?

بواسطة mars2000you

Enlighted (6556)

صورة mars2000you

04-04-2023, 07:42

The example comes from page 14 of the manual, but it is indeed wrong. Only the sign + can be omitted according page 13. Fixed in the wiki.

بواسطة popolon_

Champion (420)

صورة popolon_

04-04-2023, 08:08

Now that it seems that some VHD players without VHDpc logo(but have din13 AHD port) can be operated using VP command, then for example that Victor HD 500 player could added to wiki. I will receive that player so can verify it, if the player is otherwise working...

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