Using rs232 HAL in Nios II IDE

Hello!

I'm have the same doubt... Im using the altera RS232 university program, and I use the functions described in the datasheet of the RS232 core.

I was trying to send some data with nios 2 to the rs232... but I could't get any success yet.

Here's the code:

# include <stdio.h># include <system.h># include <string.h># include <stdlib.h># include <unistd.h># include "altera_up_avalon_rs232.h";

int main()

{

int c;

printf("\033[2J"); //clean screen

printf(" Start.\n");

alt_u8 data;

unsigned int space;

alt_u8 temp;

alt_u8 RS232_dev;

data = 2; //just some data to send...

RS232_dev = alt_up_rs232_open_dev (RS232_NAME);

space = alt_up_rs232_get_available_space_in_write_FIFO(RS232_dev);

printf("%d\n", space);

while (1)

{

temp = alt_up_rs232_write_data(RS232_dev, data);

printf("%d", temp); //if temp is =0, the data was send...

for(c=1; c<=100000; c++) //delay

{}

}

return 0;

}

The function "alt_up_rs232_write_data" is returning "0", that means success... but I'm geting nothing through RS232, which I'm reading with a software (like Hyperterminal) in a computer.

Link to the datasheet of the RS232 core: ftp://ftp.altera.com/up/pub/altera_material/11.1/university_program_ip_cores/communications/rs232.pdf

Thanks!