Voice and 8k games

[Chris!]

So I found my Voice module, and put it in, and after getting it working, I put in the SD cart in the Voice. I put in an 8k game, one I am working on. But after loading it, it just does what's in bank 3 (the introduction) over and over again. What is the largest cart size the Voice can support? Or is it a problem with my Voice module?

[VideopacBelgium]

So I found my Voice module, and put it in, and after getting it working, I put in the SD cart in the Voice. I put in an 8k game, one I am working on. But after loading it, it just does what's in bank 3 (the introduction) over and over again. What is the largest cart size the Voice can support? Or is it a problem with my Voice module?

The uSD cart does not support TheVoice games.
Turtles is a 8K game and works with TheVoice.

[Chris!]

My game doesn't use the Voice, though. Are you saying that I have to unplug my voice when I want to use the uSD cart? Rene's flash cart was like that as well. I wonder what makes the Voice incompatible with any flash carts?

[HAL]

The Voice module uses a pin on the cartridge mapping to T0 of the 8048 processor. It uses T0 to determine if the Voice is ready to load data. I don't know about the uSD cart, but the elegant ram-cart Soren Gust designed in the 90's used the same line for serial input and was therefor incompatible with The Voice.

That in itself shouldn't activate the Voice, but writing to RAM with addresses above 0x80 will. If the uSD cart expands memory and an attempt to read from those addresses is made it will activate the voice.

If you look at the original cartridges, there is a pin that is grounded for all non-voice games, but allowed to float otherwise. If that pin is grounded the voice will remain silent. I think there are one or two old games that might accidentally activate the Voice if run from a multicart for that reason.