[Diy_efi] Re: What type masked ROMS on early motronic ecu's

[Mike Rosendale]

These roms are from early BMW with cdp1802 processor.  The installed roms are 
not eproms but masked roms with chip select pinouts and will not read as an 
eprom would.  Excluding the chip select pins, the remainder are the same as a 
2716.  I made a circuit to switch combinations of 5v and ground to the chip 
select pins thinking that might make them readable.  But no luck.  So how does 
one read a cdp1834 masked rom on a standard eprom reader?

regards,

IPM
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