[ECOS] serial port problems with e7t

[F dot T dot Nilsson at hw dot ac dot uk]

Hi all,

I am currently developing a simple serial port application for an arm e7t 
board. I complied and executed the example program serial.c, which uses 
dev/haldiag this works fine with the cyg_io_write. But I need to use both 
the ports on my arm board so I developed an application using /dev/ser1 and 
ser0 although the handles are found it does not seem to work with 
cyg_io_write/read i.e. I don?t get any output. I found a previous posting 
on the discussion forum with the same problem and a reply with an example 
that uses dev/tty1 on top of the serial. I tried this but the code cannot 
find the handle for the tty. 

My build is the e7t default template with hardware serial device drivers, 
TTY mode serial device driver and flow control and I am compiling my 
application with the install/lib and include but the tty cannot be found.

 If anyone could give me a hand I would appreciate it.

my code
err = cyg_io_lookup( "/dev/ser1", &handle_ser1 );

if (ENOERR == err) {
     printf("Found /dev/ser1.....\n");
}
else {printf("could not find handle for ser1");}
	
err = cyg_io_lookup("/dev/tty1",&handle_tty1);
if (ENOERR == err) {
  printf("Found /dev/tty1.....\n");
}
else {printf("could not find handle for tty1");}

	serial_1.baud = CYGNUM_SERIAL_BAUD_38400;
	serial_1.stop = CYGNUM_SERIAL_STOP_1;
	serial_1.parity = CYGNUM_SERIAL_PARITY_NONE;
	serial_1.word_length = CYGNUM_SERIAL_WORD_LENGTH_8;
    serial_len = sizeof(serial_1);

printf("BAUD: %d, STOP: %d, PARITY: %d, WORDLENGTH: %d" , serial_1.baud, 
serial_1.stop, serial_1.parity, serial_1.word_length);
	
err = cyg_io_set_config(handle_ser1, CYG_IO_SET_CONFIG_SERIAL_INFO, (void*)
(&serial_1), &serial_len);

tty_1.tty_out_flags = CYG_TTY_OUT_FLAGS_DEFAULT;
tty_1.tty_in_flags = CYG_TTY_IN_FLAGS_DEFAULT;
serial_len = sizeof(tty_1);

cyg_io_set_config(handle_tty1,CYG_IO_GET_CONFIG_TTY_INFO,(void*)
(&tty_1),&serial_len);
		
   // err = cyg_io_write( handle_ser1, test_string, &len );
      err = cyg_io_write( tty1_handle test_string , &len );

Also I read a few other serial problems on the forum and there was 
something about the 2nd com port, com0 was not included in the arm e7t 
package. I have eCos 2.0 can anyone tell me if this version do have both 
port


Cheers

Fred


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