Some re-addresses of 51 MCU ROM

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Some re-addresses of 51 MCU ROM

 

0000H   MCU entry address after reset                (3 bytes in total)

00003H  External interrupt 0 interrupt service entry address          8 bytes in total)

000BH   Timer/Counter 0 overflow interrupt service entry address   (8 bytes in total)

0013H   External interrupt 1 interrupt service entry address           (8 bytes in total)

001BH   Timer/Counter 1 overflow interrupt service entry address    (8 bytes in total)

0023H   serial port interrupt service entry address

If you need to use related interrupts when writing a program, be careful not to overwrite them with irrelevant code segments.

Reference address:Some re-addresses of 51 MCU ROM

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