Hi, i got a quick question i hope someone can help me with.
I just flashed 2 x Atmel AT27C010 (datasheet here http://www.atmel.com/images/doc0321.pdf)
with chr and prg rom data and now that im looking to solder the roms onto my doner board i got kinda confused.
the EEprom conversion list for SLROM
says the followring.
My question is this. do i just simply count the pins on the 27C010's and holes on the board and solder it or do i do it accordingly to pin-configuration (ie A16, 0E, A13 etc)
The main reason this confused me is that the numbers in the guide does not correspondent to whats on the pinout of the rom and there is no A17 at all on the 27C010 rom.
Thanks in advance - Jiggy
I just flashed 2 x Atmel AT27C010 (datasheet here http://www.atmel.com/images/doc0321.pdf)
with chr and prg rom data and now that im looking to solder the roms onto my doner board i got kinda confused.
the EEprom conversion list for SLROM
says the followring.
Code:
SLROM (mapper 1):
PRG socket:
Bend up pins 1, 2, 24, 30 and 31 (or cut tracks)
Solder pin 2 to hole 24 (A16)
Solder pin 24 to GND (OE)
Solder pin 30 to hole 1 (A17)
CHR socket:
Bend up pins 1, 2, 22, 24, 30 and 31 (or cut tracks)
Solder pin 2 to hole 24 (A16)
Solder pin 22 to hole 31 (CE or CHR /A13)
Solder pin 24 to hole 2 (OE or CHR /RD)
PRG socket:
Bend up pins 1, 2, 24, 30 and 31 (or cut tracks)
Solder pin 2 to hole 24 (A16)
Solder pin 24 to GND (OE)
Solder pin 30 to hole 1 (A17)
CHR socket:
Bend up pins 1, 2, 22, 24, 30 and 31 (or cut tracks)
Solder pin 2 to hole 24 (A16)
Solder pin 22 to hole 31 (CE or CHR /A13)
Solder pin 24 to hole 2 (OE or CHR /RD)
My question is this. do i just simply count the pins on the 27C010's and holes on the board and solder it or do i do it accordingly to pin-configuration (ie A16, 0E, A13 etc)
The main reason this confused me is that the numbers in the guide does not correspondent to whats on the pinout of the rom and there is no A17 at all on the 27C010 rom.
Thanks in advance - Jiggy