Potentiometer Genesis Overclocking and ramifications.
Posted: Tue Oct 28, 2014 2:51 am
Someone has offered to do some modding on a Sega Genesis model 2 and donate it to me for the tracker project. On the table amongst other nifty mods are a potentiometer to overclock the Genesis. But this has raised concerns.
What would the ramifications of this kind of a mod be on the sound chips' clocks? It's wondered if this will alter the pitches/frequencies of the notes and the timing system for tracker playback. I also don't understand the precision of a potentiometer as far as how it affects clock speed... I need answers and hardware itself is not my area of expertise here. Thanks in advance guys.
EDIT: I have some more information from this person via email. I'm not very well versed in this stuff so forgive my ignorance on the topic.
"Honestly, I had just planned to add in a 10K pot, desolder the crystal,
throw it on the pot, and then add in the mod.
This way, a mid-range setting would be the default, and you'd be able to
push it higher or lower if need be.
It would in no way be a permanent/fixed oc."
What would the ramifications of this kind of a mod be on the sound chips' clocks? It's wondered if this will alter the pitches/frequencies of the notes and the timing system for tracker playback. I also don't understand the precision of a potentiometer as far as how it affects clock speed... I need answers and hardware itself is not my area of expertise here. Thanks in advance guys.
EDIT: I have some more information from this person via email. I'm not very well versed in this stuff so forgive my ignorance on the topic.
"Honestly, I had just planned to add in a 10K pot, desolder the crystal,
throw it on the pot, and then add in the mod.
This way, a mid-range setting would be the default, and you'd be able to
push it higher or lower if need be.
It would in no way be a permanent/fixed oc."