Moxa Technologies Moxa Smartio C168H Manual de usuario descargar pdf (Pagina 67)

Serial Programming Tools

Smartio C168H/HS User’s Manual 4-9

setting = TurnON /* or TurnOFF */;

ioc.ic_cmd = MTCRTS;

ioc.ic_timout = 0;

ioc.ic_len = sizeof(int);

ioc.ic_dp = (char *)&setting;

ioctl(moxa_fd, I_STR, &ioc);

4. MTCDTR

This function, only valid when hardware flow control is turned off (see

MHWFLOW), is used to drive DTR signal on or off.

Syntax for SCO UNIX/OpenServer

#define MTCDTR 0x404

#define TurnON 1

#define TurnOFF 0

ioctl(moxa_fd, MTCDTR, TurnON);

ioctl(moxa_fd, MTCDTR, TurnOFF);

Syntax for UNIX SVR4.2

#include <sys/stropts.h>

#include <sys/sysmacros.h>

#define MTCDTR 0x404

#define TurnON 1

#define TurnOFF 0

struct strioctl ioc;

int setting;

setting = TurnON /* or TurnOFF */;

ioc.ic_cmd = MTCDTR;

ioc.ic_timout = 0;

ioc.ic_len = sizeof(int);

ioc.ic_dp = (char *)&setting;

ioctl(moxa_fd, I_STR, &ioc);

5. MLOWATER

Sometimes the application software may not be able to write any further data to the

output buffer because of the output buffer being full. The application has to wait

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Moxa Technologies Moxa Smartio C168H Manual de usuario Pagina 67