[ts-7000] Re: Ts-7200

["khouryelie" <>]

--- In  Jason Stahls  wrote:
>
> On 1/31/2013 5:44 AM, khouryelie wrote:
> > HELLO,
> >
> > I AM WORKING WITH A ts-7200, and running my com2 port in full duplex
> >
> > I AM NOT ABLE TO RECEIVE DATA ON MY COM2 PORT, I CAN ONLY TRANSMIT
> >
> > WHY IS THAT ?
> >
> > _______________________________
> >
> > FROM TS-7200 MANUAL
> >
> > switch COM2 into Full duplex RS-485 mode, the COM2 Mode register at 
> > 0x22C0_0000
> > must be set to Hex 01. In this mode, the TX drivers are always asserted.
> >
> >
> > "TX drivers are always asserted" is this my prob ?
> 
> Please answer my question from the other thread you posted about this.  
> It sounds like you have it wired up for RS485 half-duplex and trying to 
> run in full-duplex.
> 
> -- 
> Jason Stahls
>


hello jason

thanks for the reply 

but you didnt ask any question on the other thread or i am not seeing anything 
there

anyway i am 100% sure its full duplex, cause TS7200 tell me this

SETTING FULL DUPLEX

 
this is my code 

#include<unistd.h>
#include<sys/types.h>
#include<sys/mman.h>
#include<stdio.h>
#include<fcntl.h>
#include<assert.h>
#include<linux/ts_sbc.h>
#include<asm/ioctls.h>
#include<sys/ioctl.h>

// futher info at 
http://wiki.embeddedarm.com/wiki/Linux_for_ARM_on_TS-72XX_User%27s_Guide#RS-485_Support_on_COM2


#define TIOC_SBCC485 _IOW('T',0x70, int) /*TS RTS/485 mode Clear*/
#define TIOC_SBCS485 _IOW('T',0x71, int) /*TS RTS/485 mode Set */
#define AUTO485FD 1
#define RTSMODE 2
#define AUTO485HD 4

int main(void)
{
        int fd,status;
        char mcr;
        fd = open("/dev/ttyAM1", O_RDWR | O_SYNC);
        if (fd == -1) 
        {
                perror("Error opening file for writing");
        }

        mcr = AUTO485FD;
        status=ioctl (fd, TIOC_SBCS485, &mcr);
        if(status==-1) 
        {
                printf("ERROR\n");
        }

}

        



------------------------------------

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/ts-7000/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/ts-7000/join
    (Yahoo! ID required)

<*> To change settings via email:
     
    

<*> To unsubscribe from this group, send an email to:
    

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/