uart.c

dm642下的一个串口程序

#include <stdio.h>
#include <std.h>
#include <sys.h>
#include <csl.h>
#include <csl_edma.h>
#include <csl_gpio.h>

#include "evmdm642.h"
#include "evmdm642_uart.h"

#define ICETEKDM642PCI_UART_BAUD115200     10
#define ICETEKDM642PCI_UART_BAUD57600      20
#define ICETEKDM642PCI_UART_BAUD38400      30
#define ICETEKDM642PCI_UART_BAUD19200      60
#define ICETEKDM642PCI_UART_BAUD9600       120
#define ICETEKDM642PCI_UART_BAUD4800       240
#define ICETEKDM642PCI_UART_BAUD2400       480
#define ICETEKDM642PCI_UART_BAUD1200       960

/* Flag to make sure POST only runs once after power cycle */
Uint32 testflag;

Int16 TEST_uartA()
{
    EVMDM642_UART_Handle hUart;
    EVMDM642_UART_Config uartcfg = {
        0x00,  // IER
        0x57,  // FCR - FIFO Mode, 16 character trigger level
        0x03,  // LCR - 8 bits, no parity, 1 stop
        0x00   // MCR
    };
    
    /* Open UART */
    hUart = EVMDM642_UART_open(EVMDM642_UARTA, ICETEKDM642PCI_UART_BAUD9600, &uartcfg);

    while ( 1 )
    {
        EVMDM642_UART_putChar(hUart, EVMDM642_UART_getChar(hUart));
    }
    
    return 0;
}

main()
{
    /* Call BSL init */
    EVMDM642_init();
        
    /* Run the tests sequentially */
	TEST_uartA();

    /* Disable interrupts */
    IRQ_globalDisable();
}