C++ (Cpp) UART_BDL_REG примеры использования

Пример #1

Файл: UART.c Проект: EmanuelVF/Seguidor-De-Luz

void UART_init(void) {

    // Habilito la llave general de las interrupciones

    NVICISER0 |= NVIC_ISER_SETENA(1<<31);

    //Habilito los cuatro modulos de UART
    SIM_SCGC4 |= SIM_SCGC4_UART0_MASK;
    SIM_SCGC5 |= SIM_SCGC5_PORTB_MASK;
    // Habilito el pin PTC1 como salida del canal 0
    PORTB_PCR16 = (PORT_PCR_ISF_MASK |
                   PORT_PCR_MUX(0x03));	//Tx
    PORTB_PCR17 = (PORT_PCR_ISF_MASK |
                   PORT_PCR_MUX(0x03)); //Rx

    //Habilito por interrupcion, un bit de stop y baudrate
    UART_C1_REG(UART0_BASE_PTR) = 0x00;

    UART_BDH_REG(UART0_BASE_PTR) = /*UART_BDH_RXEDGIE_MASK | */UART_BDH_SBR(BAUDRATEHIGH);
    UART_BDL_REG(UART0_BASE_PTR) = UART_BDL_SBR(BAUDRATELOW);

    UART_C2_REG(UART0_BASE_PTR) = UART_C2_TIE_MASK | UART_C2_TE_MASK | UART_C2_RE_MASK | UART_C2_RIE_MASK;
    UART_C3_REG(UART0_BASE_PTR) = UART_C3_TXDIR_MASK;
    UART_PFIFO_REG(UART0_BASE_PTR) = UART_PFIFO_TXFE_MASK | UART_PFIFO_TXFIFOSIZE(0x06) | UART_PFIFO_RXFE_MASK | UART_PFIFO_RXFIFOSIZE(0x01);
    UART_S2_REG(UART0_BASE_PTR) = 0x00;
}

Пример #2

Файл: MKL_uart.c Проект: hudieka/SWD

/*********************************************************************************************************
** Function name:           uart2Init
** Descriptions:            UART2µÄ³õʼ»¯
** input parameters:        ucBaudRate:²¨ÌØÂÊ£»ucParityEnable:УÑéλѡÔñ£»
**                          ucParityType:УÑéÀàÐÍ£»ucDataLength:Êý¾Ý³¤¶È£»ucStopBit:ֹͣλ£»
** output parameters:       none
** Returned value:          none
** Created by:              
** Created date:            
**--------------------------------------------------------------------------------------------------------
** Modified by:             
** Modified date:           
*********************************************************************************************************/
void  uart2Init (INT32U  ulBaudRate, 
                 INT8U   ucParityEnable,
                 INT8U   ucParityType,
                 INT8U   ucDataLength, 
                 INT8U   ucStopBit) 
{
    UART_MemMapPtr uartPtr     = UART2_BASE_PTR;
    register INT16U usBaudRate  = 0;  
    
#if UART_PARAM_DEBUG
    UART_CHECK_PARAM(UART_PARAM_LENGTH(ucDataLength)); 
    UART_CHECK_PARAM(UART_PARAM_STOP(ucStopBit));
    UART_CHECK_PARAM(UART_PARAM_LOGIC(ucParityEnable));
    UART_CHECK_PARAM(UART_PARAM_PARITY(ucParityType));   
#endif  
    
    SIM_SCGC4 |= SIM_SCGC4_UART2_MASK;                                  /* ÔÊÐíÍâÉèʱÖÓ                 */       
    uart2TranControl(UART_TX_DISABLE, UART_RX_DISABLE);                 /* Ê×ÏȽûֹͨÐÅ                 */


    #if 0                                                               
    PORTD_PCR3 = PORT_PCR_MUX(0x3);                                     /* UART2_TXD                    */
    PORTD_PCR2 = PORT_PCR_MUX(0x3);                                     /* UART2_RXD                    */
    #endif
    #if 0                                                               
    PORTD_PCR5 = PORT_PCR_MUX(0x3);                                     /* UART2_TXD                    */
    PORTD_PCR4 = PORT_PCR_MUX(0x3);                                     /* UART2_RXD                    */
    #endif
    #if 0                                                               
    PORTE_PCR22 = PORT_PCR_MUX(0x4);                                    /* UART2_TXD                    */
    PORTE_PCR23 = PORT_PCR_MUX(0x4);                                    /* UART2_RXD                    */
    #endif           
    
     

    UART_C1_REG(uartPtr) &= ~(UART_C1_M_MASK |                          /* Êý¾Ý³¤¶È                     */
                              UART_C1_PT_MASK |                         /* УÑéλÀàÐÍ                   */
                              UART_C1_PE_MASK);                         /* УÑéλ                       */
    
    UART_C1_REG(uartPtr) |= ((ucDataLength - 8UL) << UART_C1_M_SHIFT)|
                            (ucParityEnable << UART_C1_PE_SHIFT)|
                            (ucParityType << UART_C1_PT_SHIFT);                

    
    usBaudRate = SystemBusClock/(ulBaudRate * 16);    
    UART_BDH_REG(uartPtr) = (usBaudRate & 0x1F00) >> 8;                 /* ²¨ÌØÂÊ                       */
    UART_BDL_REG(uartPtr) = (INT8U)(usBaudRate & UART_BDL_SBR_MASK);
    UART_BDH_REG(uartPtr) &= ~UART_BDH_SBNS_MASK;                       /* ֹͣλ                       */
    UART_BDH_REG(uartPtr) |= (ucStopBit - 1) << UART_BDH_SBNS_SHIFT;
    UART_C2_REG(uartPtr) &= ~(UART_C2_TIE_MASK | UART_C2_TCIE_MASK|     /* Çå³ýÖжÏÉèÖà                 */
                              UART_C2_RIE_MASK | UART_C2_ILIE_MASK);  

    while ((UART_S1_REG(uartPtr) & UART_S1_RDRF_MASK) &&
           (UART_D_REG(uartPtr)));                                      /* Çå½ÓÊÕ»º³åÇø                 */
   
                                              
    #if UART2_IRQ_ENABLE       
        #if UART2_SEND_IRQ
        UART_C2_REG(uartPtr) |= UART_C2_TCIE_MASK;
        #endif
        #if UART2_RECEIVE_IRQ
        UART_C2_REG(uartPtr) |= UART_C2_RIE_MASK;
        #endif             
    NVIC_EnableIRQ(UART2_IRQn);
    NVIC_SetPriority(UART2_IRQn,3);                                     /* Óû§×Ô¼º¶¨Òå                 */        
    #endif            

}