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Implementing a second RS232 for C51 (At89C2051) ?

Hallo all,
maybe someone can help me.

I must have 2 RS232 Ports on my atmel x51 controler, but on the web you only can find examples in ASM, and i have big Problems to call an ASM routine from my C-Program.
Does someone have a C-Code for an RS232 (polling mode ;-) ), or can someone help me to implement ASM Code into my C-programm ,please ?.

If it help's i can send you the RS232 ASM Code.


Greetings
markus

Parents
  • See the getkey.c and putchar.c files supplied with C51
    - they're in the C51\LIB folder

    There are also interrupt-driven samples in the file download area on this site, and C/Assembler examples.

    The uVision Getting Started guide also has a section on C/Assembler interfacing

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  • See the getkey.c and putchar.c files supplied with C51
    - they're in the C51\LIB folder

    There are also interrupt-driven samples in the file download area on this site, and C/Assembler examples.

    The uVision Getting Started guide also has a section on C/Assembler interfacing

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