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2nd UART on at89c51re2

Michael Reizing

Hello!

I have problem with configuration of UART_1 on at89c51re2 micro controller I supposed that is because I am using a at89c51xd2.h header file which does not include definition for UART_1. When I try to define
Sbit (ES1 , 0xB1, 3);
in IEN1 (0xB1) register i receive error message error C142: 'SFR': invalid base address.

Any help?

Thanks in advance

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  • 0

    I have problem with configuration of UART_1 on at89c51re2 micro controller I supposed that is because I am using a at89c51xd2.h header file which does not include definition for UART_1
    1) why do you select 251 for a '51 chip?
    2) make copy of whatever file you are using, rename it and add the SFRs you miss.

    Erik

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  • 0

    I have problem with configuration of UART_1 on at89c51re2 micro controller I supposed that is because I am using a at89c51xd2.h header file which does not include definition for UART_1
    1) why do you select 251 for a '51 chip?
    2) make copy of whatever file you are using, rename it and add the SFRs you miss.

    Erik

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