Advantech RSB-4210 Evaluation Kit User Manual download pdf (Page 75)

67 RSB-4210 User Manual

Chapter 3 Software Functionality

return(retval);

}

int trun, rrun;

int fd;

int size = 10000;

unsigned int tcount, rcount;

FILE *furead;

void *Uartsend(void * threadParameter)

{

int *tx;

double speed;

double time;

tcount = 0;

tx = malloc(size);

memset(tx, 0x0f, size);

while(trun) {

sleep(1);

tx[0] = 0x55;

time = get_time();

write(fd, tx, size);

time = get_time() - time;

speed = size * 8 / (time/1000000);

tcount += size;

printf("sent %d bytes with speed %fbps\n", size,

speed);

}

free(tx);

return 0;

}

void *Uartread(void * threadParameter)

{

char *rx;

int iores, iocount;

rcount = 0;

while(rrun) {

iocount = 0;

iores = ioctl(fd, FIONREAD, &iocount);

if(!iocount)

continue;

rx = malloc(iocount);

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