KanedaFr wrote:Hmmm....
So, if I don't connect !cart to GND (on cart side), CD will boot and cart data is readable on $400000+
if I don't connect !cart to GND (on cart side) and doesn't connect a CD, nothing happens.
if I connect !cart to GND (on cart side), Cart will be boot and CD is readable at $400000+
Right.
KanedaFr wrote:I'm not familiar with $A12000-$A120FF, it's where you can switch on/off the led and initiate transfert between MD68k and CD68k right ?
It's too related to CD, not general use...I mean I can't use $A12000-$A120FF to access 'something' else on the ext port
For example, in this thread, my projects use !ROM for access to ROM and !FDC for access to devices, such as HDD in first project and MMC in second project. In case of MCD, there are control registers of MCD.
Oh! you're right! I totally forgot ECart while I bookmarked it!
The author gave some details on exp port.
I'm looking for a way to communicate throught the exp port because it should be faster than using joy3 port.
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