C++ (Cpp) AT91F_US_RxReady Examples

Example #1

File: dbgu.c Project: 12019/openpcd

//*----------------------------------------------------------------------------
//* \fn    AT91F_US_Get
//* \brief Get a Char to USART
//*----------------------------------------------------------------------------
int AT91F_DBGU_Get(char *val)
{
	if ((AT91F_US_RxReady((AT91PS_USART) AT91C_BASE_DBGU)) == 0)
		return (0);
	else {
		*val = AT91F_US_GetChar((AT91PS_USART) AT91C_BASE_DBGU);
		return (-1);
	}
}

Example #2

File: syscalls.c Project: wercool/sting

static int  my_kbhit( void ) 
{
	if ((AT91F_US_RxReady((AT91PS_USART)AT91C_BASE_DBGU)) == 0) return 0;
	else return 1;
}

Example #3

File: init.c Project: Flyagin/BS-MRZV

//*----------------------------------------------------------------------------
//* \fn    AT91F_Getc
//* \brief This function receives a car through the DBGU
//*----------------------------------------------------------------------------
int AT91F_Getc() 
{
    while(!AT91F_US_RxReady((AT91PS_USART)AT91C_BASE_DBGU));
    return((int)AT91F_US_GetChar((AT91PS_USART)AT91C_BASE_DBGU));
}

Example #4

File: LoopUART.c Project: danielng01/Embedded-Microcontroller-Systems

int main()
{
	int				_row, _col;
	char			c;
	U32				status;
	
	AT91PS_PIO    	pPioA  	= AT91C_BASE_PIOA;
	AT91PS_PMC    	pPMC   	= AT91C_BASE_PMC;
	AT91PS_USART 	pUART0 	= AT91C_BASE_US0;

	
	/* Initialize the Atmel AT91SAM7X256 (watchdog, PLL clock, default interrupts, etc.) */
	AT91F_LowLevel_Init();
	
	/* Init the LCD */
	InitLCD();

	/* Init the UART */
	AT91F_US_Configure(pUART0, MCK, AT91C_US_ASYNC_MODE, 9600L, 0 );
	AT91F_PMC_EnablePeripheralClock(pPMC, 1 << AT91C_ID_US0 );
    AT91F_US_EnableRx(pUART0);
    AT91F_US_EnableTx(pUART0);
	AT91F_PIO_Disable( pPioA, RXD0 | TXD0 | RTS0 | CTS0  );
	AT91F_PIO_A_RegisterSelection( pPioA, RXD0 | TXD0 | RTS0 | CTS0  );

	
	/* enable interrupts */
	AT91F_Finalize_Init();

	
	/* add your program here ... */
	LCD_ClearScreen( LCD_COLOR_RED );
	LCD_WriteString("UART Demo:", &Fixedsys_descriptor, 2, Fixedsys_descriptor.font_height, 
			                                               LCD_COLOR_WHITE, LCD_COLOR_RED);
	_row = 2*(Fixedsys_descriptor.font_height+2);
	_col = 2;
	
	/* ... and here */
	while ( true )
	{
		status = AT91F_US_RxReady(pUART0);
		if(status) {
			c = AT91F_US_GetChar(pUART0);
			AT91F_US_PutChar(pUART0, c);
			LCD_WriteChar(c, &Fixedsys_descriptor, _col, _row, LCD_COLOR_WHITE, LCD_COLOR_RED);
			if (_col<(128-Fixedsys_descriptor.font_width))
				_col += Fixedsys_descriptor.font_width;
			else {
				_col = 2;
				_row += (Fixedsys_descriptor.font_height+2);
				if (_row>(128-Fixedsys_descriptor.font_height)) {
					LCD_ClearScreen( LCD_COLOR_RED );
					_row = 2; //Fixedsys_descriptor.font_height;
					_col = 2;
				}
			}
		}
		else
			status = AT91F_US_TxReady(pUART0);
			if(status) {
				//AT91F_US_PutChar(pUART0, '.');
			}
	}
	
	/* Actually, the execution never gets here */
	return 0;
}