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about T89c51rc2

Raul Comer

i am now using the "Ateml T89c51rc2" to develope my project.
In the Keil uVersion2, i can select this chip as my target chip.
However, in the chip's function description window, it does not this chip have SPI function.
However,according to the chip's datasheet, this chip have the SPI function.

Then, can i programming the spi port by Keil compiler?

Parents
  • 0 in reply to Andy Neil

    Andrew, do you really use the Keil device header files? In the past 8 years or so I haven't. I just sfr or sbit the few SFR's I need in the .c files I use them in. I guess this stems from not being able to get past assigning a value to something in all upper case, e.g.

    SCON = 0x00;
    vs.
    r_scon = 0x00;
    where I use the r_ prefix to indicate a CPU register (of sorts).

    Sometimes I even rename a port pin to its functional use! So instead of 
    P3 |= RED_LED_ON;
    I'd sbit the port pin and use it like
    r_redLedOn = 1;
    Just wondering,

    - Mark

Reply
  • 0 in reply to Andy Neil

    Andrew, do you really use the Keil device header files? In the past 8 years or so I haven't. I just sfr or sbit the few SFR's I need in the .c files I use them in. I guess this stems from not being able to get past assigning a value to something in all upper case, e.g.

    SCON = 0x00;
    vs.
    r_scon = 0x00;
    where I use the r_ prefix to indicate a CPU register (of sorts).

    Sometimes I even rename a port pin to its functional use! So instead of 
    P3 |= RED_LED_ON;
    I'd sbit the port pin and use it like
    r_redLedOn = 1;
    Just wondering,

    - Mark

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