MSP430F169部分外围设备初始化代码

初始化时钟，以XT2为系统时钟： BCSCTL1&=~XT2OFF; //启动XT2振荡器 BCSCTL2|=SELM1; //MCLK为XT2 do { IFG1&=~OFIFG; for(i=0xFF;i>0;i--); } while((IFG1&OFIFG)!=0); 初始化串口0: void init_UART0(void) { UCTL0 &= ~SWRST; UCTL0 |=CHAR;//0X10; UBR00 = 0x03; UBR10 = 0x00; UMCTL0 = 0x4A; UTCTL0 = SSEL0;//0X10; ME1 |= UTXE0+URXE0 ; //enable the UART0 IE1 |=URXIE0; } 初始化串口1: void init_UART1(void) { unsigned int temp; ME2 |= UTXE1 + URXE1; // Enable USART1 TXD/RXD UCTL1 |= CHAR; // 8-bit character UTCTL1 |= SSEL0; // UCLK = ACLK UBR01 = 0x03; // 32k/9600 - 3.41 UBR11 = 0x00; // UMCTL1 = 0x4A; // Modulation UCTL1 &= ~SWRST; // Initialize USART state machine IE2 |= URXIE1; // Enable USART1 RX interrupt for(temp=0;temp { uart_Host_Rbuf[temp]=0; } } 初始化Timer_A： void init_ta(void) { CCTL0 = CCIE; // CCR0 interrupt enabled CCR0 = 400; TACTL = TASSEL_1 + ID_3+TACLR; // ACLK, 8分频 递增模式 TACTL|=MC_1; //Timer A mode control: 1 - Up to CCR0 }