Tonight's MAME development fun-fest: Writing a device class for the SAA1043 Universal Sync Generator IC, which will make life easier in emulating the Philips VP415 LV-ROM Player. I'll try to start streaming at roughly 19:00 Stockholm time. No voice, just video and music.
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The VP415 is a beast but very modular. @simoninns has one of my players for repair and i have given the go ahead if he needs to dump anything from it. Be aware that there are multiple versions of the firmware EPROMs.
Ahoy Ian! Thanks for the heads-up. In discussing it with Simon, we've agreed that we'll try the initial 8041 dumping process on a spare Module S from a VP410, and if results look okay, only then will we try it on the VP415. Better safe than sorry.
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In principle, it's as simple as going to verify mode while skipping 'program' mode - as safe as houses. In practice, since these are mask parts and the instructions are for EPROM parts, it's important to start at a relatively low voltage applied to the EA pin and go slowly up.
Kiitos. Käytämme tätä aikajanasi parantamiseen. KumoaKumoa
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