RtCom does not support RTS/CTS handshake.
Please disable it in your opposite minicom.
Jens Michaelsen
Raul Montoliu Colás schrieb:
> Hello everybody!!
>
> I have comunication problems with rt_com, My linux program writes in a
> fifo, and
> the module, read the fifo and sends with rt_com_write, but in the other
> linux PC, with
> miniterm appear nothing.
>
> If I use miniterm in the two computers then is all Ok,
>
> In a Readme in rt_com coments is necesary do: setserial /dev/ttyS1 uart
> none,
>
> If i do this, then miniterm doesn't work.
>
> I execute setserial /dev/ttyS1 uart none, before load rt_com module, i
> check the fifo is Ok.
>
> What is happing?
>
> Can anyboy help me!
>
> Thanks in advance!
> ------------------------------------------------------------
> The rt_com_table in rt_com.c is:
> #define RT_COM_CNT 0
> struct rt_com_struct rt_com_table[ RT_COM_CNT ] =
> {
> { 0, BASE_BAUD, 0x2f8, 3, STD_COM_FLAG, rt_com0_isr },
> };
>
> the results of setserial /dev/ttyS1 (before setserial /dev/ttyS1 uart
> none) are:
> /dev/ttyS1, UART: unknown, Port: 0x02f8, IRQ: 3
>
> ------------------------------------------------------------
> The code of my module is :
>
> #include <linux/config.h>
> #include <linux/errno.h>
> #include <linux/ioport.h>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/version.h>
>
> #include <rtl_conf.h>
> #include <rtl_core.h>
> #include <rtl_sync.h>
> #include <rtl_fifo.h>
> #include <rt_com.h>
>
> static int _fifo_read = 1; /* default fifo used to read is 1 */
> static int _port = 0;
>
> int read_handler(unsigned int fifo)
> {
> char c;
> int err;
>
> err=rtf_get(_fifo_read,&c,1);
> if (err<0)
> {
> printk("read_handler: rtf_get error %d\n",err);
> }
> rt_com_write(_port,&c,1);
> return 0;
> }
>
> /* -------------------------------------------------- */
> /* - init_module - */
> /* -------------------------------------------------- */
> int init_module( void )
> {
> int fifo_r;
> int err;
>
> if( (fifo_r = rtf_create(_fifo_read,1000) ) <0)
> {
> printk("head: Error al crear la FIFO read, error: %d\n",fifo_r);
> return -1;
> }
>
> /* when there is something in the fifo read, the read_handler is
> executed*/
> if ( (err=rtf_create_handler(_fifo_read, &read_handler))<0)
> {
> rtf_destroy(_fifo_read);
> printk("head: Error al crear el handler, error: %d\n",err);
> return -1;
> }
>
> /* configure /dev/ttyS1 port*/
> rt_com_setup(_port, 38400, RT_COM_PARITY_NONE, 1, 8);
>
> printk("head: Module head is loaded\n");
> return(0);
> }
>
> /* -------------------------------------------------- */
> /* - cleanup_module - */
> /* -------------------------------------------------- */
> void cleanup_module( void )
> {
> rtf_destroy(_fifo_read);
> }
>
> --------------------------------------------------
> And the linux program:
>
> #include <unistd.h>
> #include <stdio.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> #include <fcntl.h>
>
> int main()
> {
> int fd1;
> unsigned char letra='1';
> int err;
>
> fd1=open("/dev/rtf1",O_WRONLY);
>
> if (fd1!=0)
> {
> while(letra != '0')
> {
> printf("Write a char: (exit with: '0'):\n");
> letra=getchar();
> if((err=write(fd1,&letra,1))!=1)
> {
> // error
> printf("Error, %d\n",err);
> }
>
> }
> }
> return(0);
> }
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