UART 16550 vs standard UART

Hi all,

just tried to get the 16550 UART to work at all, but no output so far. I tried to implement, what is in the the "ug_embedded_ip" manual, but so far no luck.

Is there anything obvious missing, or wrong:

# include <stdio.h>

# include <stdlib.h>

# include <sys/ioctl.h>

# include <sys/termios.h>

# include <fcntl.h>

# include <string.h>

# include <unistd.h>

# include <sys/time.h>

# include <time.h>

# include "system.h"

# include "altera_16550_uart.h"

# include "altera_16550_uart_regs.h"

# define BUFSIZE 512

char TXMessage[BUFSIZE] = "Hello World, UART16550 sending\n";

int UARTDefaultConfig(UartConfig *Config)

{

Config->stop_bit = STOPB_1;

Config->parity_bit = NO_PARITY;

Config->data_bit = CS_8;

Config->baudrate = BR115200;

Config->fifo_mode = 0;

Config->hwfc = 0;

Config->rx_fifo_level= RXFULL;

Config->tx_fifo_level= TXEMPTY;

return 0;

}

int UARTBaudRateTest()

{

UartConfig *UART0_Config = malloc(1*sizeof(UartConfig));

altera_16550_uart_state* uart_0;

uart_0 = altera_16550_uart_open ("/dev/a_16550_uart_0");

UARTDefaultConfig(UART0_Config);

altera_16550_uart_write(uart_0, &TXMessage, strlen(TXMessage), 0);

usleep(1000);

free(UART0_Config);

return (0);

}

int main()

{

int result=0;

result = UARTBaudRateTest();

}

Thanks!