S4 library, am i able to add a new device?
Posted: 14 Nov 2011 16:58
Hi Neil
I would like to either add a device to the S4 library, or create a custom library eprom for 1 rom that the S4 won't at the moment do. All i want to do is read the contents and do a checksum, no programming capacity for the device is needed.
The device is a 9316 masked rom (used in the arcade games of years ago), which is practically identical to the standard generic 5v 2716 eprom, the diference being is pins 18 and 21
2716 for reading has pin 18 LOW 0v, but i need it HIGH 5v for the 9316 rom
2716 for reading has pin 21 HIGH 5v, but i need it LOW 0v for the 9316 rom
The rest of the pins are the same. In other words just swapping pins 18 and 21
I currently use a home made adaptor (which is falling appart) but would be much nicer if i could make some kind of a library for the S4 to alter the pins for reading
(The reading / checksum of this rom is handy as they do go faulty as are getting old, so this function would be very good on the S4 for me to verify there ok)
is this possible?
many thanks
Andrew
I would like to either add a device to the S4 library, or create a custom library eprom for 1 rom that the S4 won't at the moment do. All i want to do is read the contents and do a checksum, no programming capacity for the device is needed.
The device is a 9316 masked rom (used in the arcade games of years ago), which is practically identical to the standard generic 5v 2716 eprom, the diference being is pins 18 and 21
2716 for reading has pin 18 LOW 0v, but i need it HIGH 5v for the 9316 rom
2716 for reading has pin 21 HIGH 5v, but i need it LOW 0v for the 9316 rom
The rest of the pins are the same. In other words just swapping pins 18 and 21
I currently use a home made adaptor (which is falling appart) but would be much nicer if i could make some kind of a library for the S4 to alter the pins for reading
(The reading / checksum of this rom is handy as they do go faulty as are getting old, so this function would be very good on the S4 for me to verify there ok)
is this possible?
many thanks
Andrew