busyuart2.c

来自「Microchip的官方PIC24H系列16位单片机的外设源程序库。」· C语言 代码 · 共 24 行

#include<uart.h>
#include<p30fxxxx.h>

/* UART2 is defined in following devices */
#if defined(__dsPIC30F3011__) || defined(__dsPIC30F4011__) || defined(__dsPIC30F6010__) || \
    defined(__dsPIC30F3013__) || defined(__dsPIC30F3014__) || defined(__dsPIC30F5011__)	|| \
    defined(__dsPIC30F6011__) || defined(__dsPIC30F6012__) || defined(__dsPIC30F5013__) || \
    defined(__dsPIC30F6013__) || defined(__dsPIC30F6014__) || defined(__dsPIC30F4013__)

/***********************************************************************
* Function Name     : BusyUART2
* Description       : This returns status whether the transmission 
                      is in progress or not, by checking Status bit TRMT
* Parameters        : None
* Return Value      : char info whether transmission is in progress 
***********************************************************************/

char BusyUART2(void)
{  
    return(!U2STAbits.TRMT);
}

#endif