[En-Nut-Discussion] Problem with UART init.

[Brett Abbott]

Basil

I suggest you start with the "uart" and "rs232d" sample programs as a 
base - Once you get that working, add your own bits step by step - this 
way, when it breaks you know which bit is wrong.

With the uart, I think r+ means read and write, and r+b means read and 
write binary (ie. 8 bit)  - Worry about this once you get the demo code 
working.

Good luck.
Brett

basil.thomas at bluewin.ch wrote:
> Hello to all members
>
> Im trying to init. the RS232 port 0 on my xnut-105 so that i can us 
> the standart  C comands. But some how it wont print anithing out. It 
> can`t be something big, but i am not realy understanding how this 
> works with the device register function. Wath mens the "w" or the 
> "r+"?  I found something in the API description but did not got it.
>
> this is the code: 
>
> #include <string.h>
> #include <stdio.h>
> #include <io.h>
> #include <stdlib.h>
> #include <dev/board.h>
> #include <fcntl.h>
> #include <sys/heap.h>
> #include <sys/thread.h>
> #include <sys/timer.h>
> #include <sys/socket.h>
> //#include <dev/debug.h>
> #include <dev/nicrtl.h>
> #include <dev/uartavr.h>
> #include <arpa/inet.h>
> #include <pro/dhcp.h>
> #include <net/errno.h>
> #include <dev/atcan.h>
>
>
>
> /***************************************************************************
>  * Devine
>  
> ***************************************************************************/
>
> //RS232
> //	static char inbuf[128];
>
>
> /***************************************************************************
>  * Main
>  
> ***************************************************************************/
>
> int main(void)
> {
> //INIT RS232
>    	u_long baud = 38400;
> 	NutRegisterDevice(&DEV_UART0, 0, 0);
> 	freopen(DEV_UART_NAME, "w", stdout);
> 	_ioctl(_fileno(stdout), UART_SETSPEED, &baud);
>
> 	printf("Starting up...\n");
>
> 	return 1;
> }
> _______________________________________________
> En-Nut-Discussion mailing list
> En-Nut-Discussion at egnite.de
> http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion
>
>
>   

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Brett Abbott, Managing Director, Digital Telemetry Limited
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