Altera Embedded Peripherals IP User Manual
Page 105
usleep(1000);
if(ERROR== altera_16550_uart_read(uart_1, RXMessage, 1, 0)) return
ERROR;
if(TXMessage[0]==RXMessage[0]) Match=1; else
{
printf("Sent:'%c', Received:'%c', Match:%d\n", TXMessage[0],
RXMessage[0], Match);
return ERROR;
}
printf("Sent:'%c', Received:'%c', Match:%d\n", TXMessage[0],
RXMessage[0], Match);
}
}
}
free(UART0_Config);
free(UART1_Config);
return SUCCESS;
}
int UARTFIFOModeTest()
{
UartConfig *UART0_Config = malloc(1*sizeof(UartConfig));
UartConfig *UART1_Config = malloc(1*sizeof(UartConfig));
int i=0, direction=0, CharCounter=0, Match=0;
const int nBaud = 2;
int BaudRateCoverage[]= {BR115200, /*BR19200, BR38400, BR57600,*/ BR9600};
altera_16550_uart_state* uart_0;
altera_16550_uart_state* uart_1;
printf("================================ UART FIFO Mode Test Starts Here
=======================================\n");
uart_0 = altera_16550_uart_open ("/dev/a_16550_uart_0");
uart_1 = altera_16550_uart_open ("/dev/a_16550_uart_1");
for (direction=0; direction<2; direction++)
{
for (i=0; i
UARTDefaultConfig(UART0_Config);
UARTDefaultConfig(UART1_Config);
UART0_Config->baudrate=BaudRateCoverage[i];
UART1_Config->baudrate=BaudRateCoverage[i];
UART0_Config->fifo_mode = 1;
UART1_Config->fifo_mode = 1;
UART0_Config->hwfc = 0;
UART1_Config->hwfc = 0;
if(ERROR == alt_16550_uart_config (uart_0, UART0_Config)) return ERROR;
if(ERROR == alt_16550_uart_config (uart_1, UART1_Config)) return ERROR;
printf("Testing Baud Rate: %d\n", UART0_Config->baudrate);
switch(direction)
{
case 0:
printf("Ping Pong FIFO Test: UART#0 to UART#1\n");
CharCounter=altera_16550_uart_write(uart_0, &TXMessage,
strlen(TXMessage), 0);
//usleep(50000);
if(ERROR== altera_16550_uart_read(uart_1, RXMessage,
strlen(TXMessage), 0)) return ERROR;
if(strcmp(TXMessage, RXMessage)==0) Match=1; else Match=0;
printf("Sent:'%s' CharCount:%d, Received:'%s' CharCount:%d, Match:%d
\n", TXMessage, CharCounter, RXMessage, strlen(RXMessage), Match);
if(Match==0) return ERROR;
break;
case 1:
UG-01085
2014.24.07
Driver Examples
9-19
16550 UART
Altera Corporation