SE/30 with Interware Booster SE/30 -- Silly bongs no more?

[rickrob]

I have an SE/30 with an Interware Booster SE/30 clone installed. Always had the silly bongs on startup.. until I installed a GW4402B ROM Simm from Garrett's Workshop. Norton System Info still shows the 68030 @ 47Mhz, and the accelerator is working, just no more silly bongs.

Just wondering why. Speed of the flash ROM maybe?

 

[obsolete]

Yep, I've noticed the same thing. The bongs are only silly with the factory SE/30 ROM.

 

[zigzagjoe]

IIsi/Universal ROM chime sound code is different, more cpu-speed agnostic and so interacts better with the mechanic used by the accelerator to correct the chime playback.

The SE30 ROM chime code does not control for CPU speed, so by default it plays quickly, and approaches taken to 'fix' that vary. Daystar didn't try to fix the chime so it plays fast, Diimo went over the top (sounds nearly normal), and the booster tries to fix it but the sound varies for unknown reasons. Booster 2.0 cards will take the daystar approach as they will correct audio playback in an OS-agnostic manner, but not try to fix the chime.

 

[rickrob]

That's good to know about the SE/30 stock ROM... This particular SE/30 is the only one that had a stock ROM-- I usually install A GG Labs IIsi ROM, just to get 32 bit clean code. The GW 4402B ROM has some cool features, so I figured I'd try it in this machine.

 

[obsolete]

Booster 2.0 cards will take the daystar approach as they will correct audio playback in an OS-agnostic manner, but not try to fix the chime.

Is this for practical reasons, frivolous reasons, or a happy confluence of both?

 

[zigzagjoe]

Is this for practical reasons, frivolous reasons, or a happy confluence of both?

Bit of a coincidence: The amount of bus cycle delay I found necessary to correct both floppy and sound behavior ends up being similar to what Daystar introduced (though the underlying approach is different). Found that when I thought to measure a Powercache afterwards as I was curious why their chimes sounded similar.

The lack of deliberate correction for the SE/30 ROM's chime (as opposed to the general treatment for sound) is more practical in that it'd be obnoxious to implement and introduce unneeded complexity for what is a nonessential fix especially given folks like to install IIsi ROMs anyways.

 

[micheledipaola]

Not directly related but can you check the card’s firmware number? There is a specific thread looking for a dump of v. 1.1.2 rom…

 

[zigzagjoe]

Not directly related but can you check the card’s firmware number? There is a specific thread looking for a dump of v. 1.1.2 rom…

These cards do not have firmware. The discussion in that thread has meandered from the topic and is discussing the CV-40 68040 booster, not the original 50-SE30F cards or my derivatives.

 

[micheledipaola]

These cards do not have firmware. The discussion in that thread has meandered from the topic and is discussing the CV-40 68040 booster, not the original 50-SE30F cards or my derivatives.

whoops sorry my bad... I should have checked the thread before