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Honda often used MCUs that had internal (on-chip) programs. These were often copy protected. There are Mcu Readers to defeat the copy protection
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Honda often used MCUs that had internal (on-chip) programs. These were often copy protected. There are Mcu Readers to defeat the copy protection.
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It is possible to switch between more than one program on your oversized EEPROM. All you need to do is add a pullup resistor to the extra address lines (A15, A16, Etc.), then to switch them, just add a debounced switch to the address lines to ground them.
Here is a diagram of 28 & 32 pin EEPROMS:
%META:FILEATTACHMENT{name="1.32_pin-2-28PinIC.jpg" attr="" comment="EEPROM pinouts" date="1170725945" path="1. 32_pin-2-28Pin IC.jpg" size="39713" user="JaredKaragen" version="1.1"}% |
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