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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
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