linuxシリアルポート転送ファイル
FPGAmからPC機にファイルを転送する必要があります.次はシリアルポート転送ファイルの小さなプログラムです.シリアルポートbufferのサイズをテストすることができます.私のパソコンには4 K以上あります.シリアルポートレジスタのサイズをテストして読み出しサイズを読み込むこともできます.私のところは32 bytesです.
write.c
write.c #include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#define BUFFER_SIZE 16
#define FALSE -1
#define TRUE 1
int speed_arr[] = { B38400, B19200, B9600, B4800, B2400, B1200, B300,
B38400, B19200, B9600, B4800, B2400, B1200, B300, };
int name_arr[] = {38400, 19200, 9600, 4800, 2400, 1200, 300,
38400, 19200, 9600, 4800, 2400, 1200, 300, };
void set_speed(int fd, int speed);
int set_Parity(int fd,int databits,int stopbits,int parity);
int main(int argc,char *argv[])
{
char *interface = NULL,*filename = NULL;
if (argc < 2)
{
interface = "/dev/ttyUSB0";
filename = "hello.txt" ;
}
else
{
interface = argv[1];
filename = argv[2];
}
int fd=open(interface,O_RDWR|O_NOCTTY|O_NDELAY);
if(fd == -1)
{
printf("%s Open Error!
",interface);
return -1;
}
printf("open %s successfully !",interface);
set_speed(fd,19200);
if (set_Parity(fd,8,1,'N')== FALSE)
{
printf("Set Parity Error
");
exit(1);
}
int fp = open(filename,O_RDWR);
if ( fp == -1 )
{
printf("open %s failured
",filename);
return -1;
}
int nread = 1;
char buffer[BUFFER_SIZE] = {'\0'};
int sum = 0;
while(nread > 0)
{
int nwrite = 0;
int tmp = 0,pos=0;
nread = read(fp,buffer,BUFFER_SIZE); //
printf(" : %d bytes
",nread);
int size_write = nread; //size_write
while (size_write > 0)
{
// int pos = 0>=nwrite?0:nwrite ; //
// printf("pos = %d
",pos);
tmp = (nwrite > tmp)? nwrite : tmp; //
pos = tmp ;
//printf("tmp = %d,pos %d
",tmp,pos);
nwrite = write(fd,buffer + pos,size_write); //nwrite
if (nwrite == -1)
{
sleep (2);
continue;
}
sum = sum + nwrite; //nwrite 8
printf(" : %d, : %d
",sum,size_write);
size_write = size_write-nwrite; //
}
}
printf("sussfully write %s
",filename);
close(fp);
close(fd);
return 0;
}
void set_speed(int fd, int speed)
{
int i;
int status;
struct termios Opt;
tcgetattr(fd, &Opt);
for ( i= 0; i < sizeof(speed_arr) / sizeof(int); i++)
{
if (speed == name_arr[i])
{
tcflush(fd, TCIOFLUSH);
cfsetispeed(&Opt, speed_arr[i]);
cfsetospeed(&Opt, speed_arr[i]);
status = tcsetattr(fd, TCSANOW, &Opt);
if (status != 0)
{
perror("tcsetattr fd1");
return;
}
}
tcflush(fd,TCIOFLUSH);
}
}
int set_Parity(int fd,int databits,int stopbits,int parity)
{
struct termios options;
if (tcgetattr( fd,&options) != 0)
{
perror("SetupSerial 1");
return(FALSE);
}
options.c_cflag &= ~CSIZE;
switch (databits) /* */
{
case 7:
options.c_cflag |= CS7;
break;
case 8:
options.c_cflag |= CS8;
break;
default:
fprintf(stderr,"Unsupported data size
");
return (FALSE);
}
switch (parity)
{
case 'n':
case 'N':
options.c_cflag &= ~PARENB; /* Clear parity enable */
options.c_iflag &= ~INPCK; /* Enable parity checking */
break;
case 'o':
case 'O':
options.c_cflag |= (PARODD | PARENB); /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'e':
case 'E':
options.c_cflag |= PARENB; /* Enable parity */
options.c_cflag &= ~PARODD; /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'S':
case 's': /*as no parity*/
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
break;
default:
fprintf(stderr,"Unsupported parity
");
return (FALSE);
}
/* */
switch (stopbits)
{
case 1:
options.c_cflag &= ~CSTOPB;
break;
case 2:
options.c_cflag |= CSTOPB;
break;
default:
fprintf(stderr,"Unsupported stop bits
");
return (FALSE);
}
/* Set input parity option */
if (parity != 'n')
options.c_iflag |= INPCK;
options.c_cc[VTIME] = 150; // 15 seconds
options.c_cc[VMIN] = 0;
tcflush(fd,TCIFLUSH); /* Update the options and do it NOW */
if (tcsetattr(fd,TCSANOW,&options) != 0)
{
perror("SetupSerial 3");
return (FALSE);
}
return (TRUE);
}
read.c #include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#define BUFFER_SIZE 16
#define MAX 1024
#define FALSE -1
#define TRUE 1
int speed_arr[] = { B38400, B19200, B9600, B4800, B2400, B1200, B300,
B38400, B19200, B9600, B4800, B2400, B1200, B300, };
int name_arr[] = {38400, 19200, 9600, 4800, 2400, 1200, 300,
38400, 19200, 9600, 4800, 2400, 1200, 300, };
void set_speed(int fd, int speed);
int set_Parity(int fd,int databits,int stopbits,int parity);
int main(int argc,char *argv[])
{
char *interface = NULL,*filename = NULL;
if (argc < 2)
{
interface = "/dev/ttyACM0";
filename = "hello.txt" ;
}
else
{
interface = argv[1];
filename = argv[2];
}
int fd=open(interface,O_RDWR|O_NOCTTY|O_NDELAY);
if(fd == -1)
{
printf("%s Open Error!
",interface);
return -1;
}
printf("open %s successfully !",interface);
set_speed(fd,19200);
if (set_Parity(fd,8,1,'N')== FALSE)
{
printf("Set Parity Error
");
exit(1);
}
int fp = open(filename,O_RDWR|O_CREAT);
if ( fp == -1 )
{
printf("open %s failured
",filename);
return -1;
}
int nread = 1,nwrite = 0;
char buffer[BUFFER_SIZE] = {'\0'};
while(1)
{
nread = read(fd,buffer,BUFFER_SIZE);
if (nread > 0)
{
// printf(" %d bytes
",nread);
nwrite = write(fp,buffer,nread);
// printf(" %d bytes
",nwrite);
if (nwrite <= 0)
{
printf("write into file finished n");
break;
}
}
}
printf("sussfully get %s
",filename);
return 0;
}
void set_speed(int fd, int speed)
{
int i;
int status;
struct termios Opt;
tcgetattr(fd, &Opt);
for ( i= 0; i < sizeof(speed_arr) / sizeof(int); i++)
{
if (speed == name_arr[i])
{
tcflush(fd, TCIOFLUSH);
cfsetispeed(&Opt, speed_arr[i]);
cfsetospeed(&Opt, speed_arr[i]);
status = tcsetattr(fd, TCSANOW, &Opt);
if (status != 0)
{
perror("tcsetattr fd1");
return;
}
}
tcflush(fd,TCIOFLUSH);
}
}
int set_Parity(int fd,int databits,int stopbits,int parity)
{
struct termios options;
if (tcgetattr( fd,&options) != 0)
{
perror("SetupSerial 1");
return(FALSE);
}
options.c_cflag &= ~CSIZE;
switch (databits) /* */
{
case 7:
options.c_cflag |= CS7;
break;
case 8:
options.c_cflag |= CS8;
break;
default:
fprintf(stderr,"Unsupported data size
");
return (FALSE);
}
switch (parity)
{
case 'n':
case 'N':
options.c_cflag &= ~PARENB; /* Clear parity enable */
options.c_iflag &= ~INPCK; /* Enable parity checking */
break;
case 'o':
case 'O':
options.c_cflag |= (PARODD | PARENB); /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'e':
case 'E':
options.c_cflag |= PARENB; /* Enable parity */
options.c_cflag &= ~PARODD; /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'S':
case 's': /*as no parity*/
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
break;
default:
fprintf(stderr,"Unsupported parity
");
return (FALSE);
}
/* */
switch (stopbits)
{
case 1:
options.c_cflag &= ~CSTOPB;
break;
case 2:
options.c_cflag |= CSTOPB;
break;
default:
fprintf(stderr,"Unsupported stop bits
");
return (FALSE);
}
/* Set input parity option */
if (parity != 'n')
options.c_iflag |= INPCK;
options.c_cc[VTIME] = 150; // 15 seconds
options.c_cc[VMIN] = 0;
tcflush(fd,TCIFLUSH); /* Update the options and do it NOW */
if (tcsetattr(fd,TCSANOW,&options) != 0)
{
perror("SetupSerial 3");
return (FALSE);
}
return (TRUE);
}
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#define BUFFER_SIZE 16
#define FALSE -1
#define TRUE 1
int speed_arr[] = { B38400, B19200, B9600, B4800, B2400, B1200, B300,
B38400, B19200, B9600, B4800, B2400, B1200, B300, };
int name_arr[] = {38400, 19200, 9600, 4800, 2400, 1200, 300,
38400, 19200, 9600, 4800, 2400, 1200, 300, };
void set_speed(int fd, int speed);
int set_Parity(int fd,int databits,int stopbits,int parity);
int main(int argc,char *argv[])
{
char *interface = NULL,*filename = NULL;
if (argc < 2)
{
interface = "/dev/ttyUSB0";
filename = "hello.txt" ;
}
else
{
interface = argv[1];
filename = argv[2];
}
int fd=open(interface,O_RDWR|O_NOCTTY|O_NDELAY);
if(fd == -1)
{
printf("%s Open Error!
",interface);
return -1;
}
printf("open %s successfully !",interface);
set_speed(fd,19200);
if (set_Parity(fd,8,1,'N')== FALSE)
{
printf("Set Parity Error
");
exit(1);
}
int fp = open(filename,O_RDWR);
if ( fp == -1 )
{
printf("open %s failured
",filename);
return -1;
}
int nread = 1;
char buffer[BUFFER_SIZE] = {'\0'};
int sum = 0;
while(nread > 0)
{
int nwrite = 0;
int tmp = 0,pos=0;
nread = read(fp,buffer,BUFFER_SIZE); //
printf(" : %d bytes
",nread);
int size_write = nread; //size_write
while (size_write > 0)
{
// int pos = 0>=nwrite?0:nwrite ; //
// printf("pos = %d
",pos);
tmp = (nwrite > tmp)? nwrite : tmp; //
pos = tmp ;
//printf("tmp = %d,pos %d
",tmp,pos);
nwrite = write(fd,buffer + pos,size_write); //nwrite
if (nwrite == -1)
{
sleep (2);
continue;
}
sum = sum + nwrite; //nwrite 8
printf(" : %d, : %d
",sum,size_write);
size_write = size_write-nwrite; //
}
}
printf("sussfully write %s
",filename);
close(fp);
close(fd);
return 0;
}
void set_speed(int fd, int speed)
{
int i;
int status;
struct termios Opt;
tcgetattr(fd, &Opt);
for ( i= 0; i < sizeof(speed_arr) / sizeof(int); i++)
{
if (speed == name_arr[i])
{
tcflush(fd, TCIOFLUSH);
cfsetispeed(&Opt, speed_arr[i]);
cfsetospeed(&Opt, speed_arr[i]);
status = tcsetattr(fd, TCSANOW, &Opt);
if (status != 0)
{
perror("tcsetattr fd1");
return;
}
}
tcflush(fd,TCIOFLUSH);
}
}
int set_Parity(int fd,int databits,int stopbits,int parity)
{
struct termios options;
if (tcgetattr( fd,&options) != 0)
{
perror("SetupSerial 1");
return(FALSE);
}
options.c_cflag &= ~CSIZE;
switch (databits) /* */
{
case 7:
options.c_cflag |= CS7;
break;
case 8:
options.c_cflag |= CS8;
break;
default:
fprintf(stderr,"Unsupported data size
");
return (FALSE);
}
switch (parity)
{
case 'n':
case 'N':
options.c_cflag &= ~PARENB; /* Clear parity enable */
options.c_iflag &= ~INPCK; /* Enable parity checking */
break;
case 'o':
case 'O':
options.c_cflag |= (PARODD | PARENB); /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'e':
case 'E':
options.c_cflag |= PARENB; /* Enable parity */
options.c_cflag &= ~PARODD; /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'S':
case 's': /*as no parity*/
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
break;
default:
fprintf(stderr,"Unsupported parity
");
return (FALSE);
}
/* */
switch (stopbits)
{
case 1:
options.c_cflag &= ~CSTOPB;
break;
case 2:
options.c_cflag |= CSTOPB;
break;
default:
fprintf(stderr,"Unsupported stop bits
");
return (FALSE);
}
/* Set input parity option */
if (parity != 'n')
options.c_iflag |= INPCK;
options.c_cc[VTIME] = 150; // 15 seconds
options.c_cc[VMIN] = 0;
tcflush(fd,TCIFLUSH); /* Update the options and do it NOW */
if (tcsetattr(fd,TCSANOW,&options) != 0)
{
perror("SetupSerial 3");
return (FALSE);
}
return (TRUE);
}#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#define BUFFER_SIZE 16
#define MAX 1024
#define FALSE -1
#define TRUE 1
int speed_arr[] = { B38400, B19200, B9600, B4800, B2400, B1200, B300,
B38400, B19200, B9600, B4800, B2400, B1200, B300, };
int name_arr[] = {38400, 19200, 9600, 4800, 2400, 1200, 300,
38400, 19200, 9600, 4800, 2400, 1200, 300, };
void set_speed(int fd, int speed);
int set_Parity(int fd,int databits,int stopbits,int parity);
int main(int argc,char *argv[])
{
char *interface = NULL,*filename = NULL;
if (argc < 2)
{
interface = "/dev/ttyACM0";
filename = "hello.txt" ;
}
else
{
interface = argv[1];
filename = argv[2];
}
int fd=open(interface,O_RDWR|O_NOCTTY|O_NDELAY);
if(fd == -1)
{
printf("%s Open Error!
",interface);
return -1;
}
printf("open %s successfully !",interface);
set_speed(fd,19200);
if (set_Parity(fd,8,1,'N')== FALSE)
{
printf("Set Parity Error
");
exit(1);
}
int fp = open(filename,O_RDWR|O_CREAT);
if ( fp == -1 )
{
printf("open %s failured
",filename);
return -1;
}
int nread = 1,nwrite = 0;
char buffer[BUFFER_SIZE] = {'\0'};
while(1)
{
nread = read(fd,buffer,BUFFER_SIZE);
if (nread > 0)
{
// printf(" %d bytes
",nread);
nwrite = write(fp,buffer,nread);
// printf(" %d bytes
",nwrite);
if (nwrite <= 0)
{
printf("write into file finished n");
break;
}
}
}
printf("sussfully get %s
",filename);
return 0;
}
void set_speed(int fd, int speed)
{
int i;
int status;
struct termios Opt;
tcgetattr(fd, &Opt);
for ( i= 0; i < sizeof(speed_arr) / sizeof(int); i++)
{
if (speed == name_arr[i])
{
tcflush(fd, TCIOFLUSH);
cfsetispeed(&Opt, speed_arr[i]);
cfsetospeed(&Opt, speed_arr[i]);
status = tcsetattr(fd, TCSANOW, &Opt);
if (status != 0)
{
perror("tcsetattr fd1");
return;
}
}
tcflush(fd,TCIOFLUSH);
}
}
int set_Parity(int fd,int databits,int stopbits,int parity)
{
struct termios options;
if (tcgetattr( fd,&options) != 0)
{
perror("SetupSerial 1");
return(FALSE);
}
options.c_cflag &= ~CSIZE;
switch (databits) /* */
{
case 7:
options.c_cflag |= CS7;
break;
case 8:
options.c_cflag |= CS8;
break;
default:
fprintf(stderr,"Unsupported data size
");
return (FALSE);
}
switch (parity)
{
case 'n':
case 'N':
options.c_cflag &= ~PARENB; /* Clear parity enable */
options.c_iflag &= ~INPCK; /* Enable parity checking */
break;
case 'o':
case 'O':
options.c_cflag |= (PARODD | PARENB); /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'e':
case 'E':
options.c_cflag |= PARENB; /* Enable parity */
options.c_cflag &= ~PARODD; /* */
options.c_iflag |= INPCK; /* Disnable parity checking */
break;
case 'S':
case 's': /*as no parity*/
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
break;
default:
fprintf(stderr,"Unsupported parity
");
return (FALSE);
}
/* */
switch (stopbits)
{
case 1:
options.c_cflag &= ~CSTOPB;
break;
case 2:
options.c_cflag |= CSTOPB;
break;
default:
fprintf(stderr,"Unsupported stop bits
");
return (FALSE);
}
/* Set input parity option */
if (parity != 'n')
options.c_iflag |= INPCK;
options.c_cc[VTIME] = 150; // 15 seconds
options.c_cc[VMIN] = 0;
tcflush(fd,TCIFLUSH); /* Update the options and do it NOW */
if (tcsetattr(fd,TCSANOW,&options) != 0)
{
perror("SetupSerial 3");
return (FALSE);
}
return (TRUE);
}