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cc2530串口操作

串口初始化

void UART0_Init(BaudSel baud)
{CLKCONCMD &= ~0X40;             //晶振  0100  0000while(!(SLEEPSTA & 0X40));                             //等待晶振稳定CLKCONCMD &= ~0X47;             //TICHSPD128分频，CLKSPD不分频  0100 0111SLEEPCMD |= 0X04;           //关闭不用的RC振荡器PERCFG = 0X00;          //位置1 P0口P0SEL |= 0X0C;          //P0用作串口  1100U0CSR |= 0X80;          //UART方式switch(baud){case BAUD_2400:      U0GCR |= 6;     U0BAUD |= 59;    break;case BAUD_4800:      U0GCR |= 7;     U0BAUD |= 59;    break;case BAUD_9600:      U0GCR |= 8;     U0BAUD |= 59;    break;case BAUD_14400:     U0GCR |= 8;     U0BAUD |= 216;   break;case BAUD_19200:     U0GCR |= 9;     U0BAUD |= 59;    break;case BAUD_28800:     U0GCR |= 9;     U0BAUD |= 216;   break;case BAUD_38400:     U0GCR |= 10;    U0BAUD |= 59;    break;case BAUD_57600:     U0GCR |= 10;    U0BAUD |= 216;   break;case BAUD_76800:     U0GCR |= 11;    U0BAUD |= 59;    break;case BAUD_115200:    U0GCR |= 11;    U0BAUD |= 216;   break;case BAUD_230400:    U0GCR |= 12;    U0BAUD |= 216;   break;default         :    U0GCR |= 11;    U0BAUD |= 216;   break; //BAUD_115200;}UTX0IF = 0;U0CSR |= 0X40;          //允许接收IEN0 |= 0X84;           //开总中断，接收中断}

寄存器

1、CLKCONCMD寄存器

  CLKCONCMD &= ~0X40;             //晶振  0100  0000while(!(SLEEPSTA & 0X40));       //等待晶振稳定

 CLKCONCMD &= ~0X47;             //TICHSPD128分频，CLKSPD不分频  0100 0111

2、SLEEPCMD寄存器

SLEEPCMD |= 0X04;         //关闭不用的RC振荡器 0000 0100

3、PERCFG寄存器

 PERCFG = 0X00;       //位置1 P0口

4、PxSEL寄存器

 P0SEL |= 0X0C;       //P0用作串口  1100

5、UxCSR寄存器

U0CSR |= 0X80;        //UART方式  1000 0000

U0CSR |= 0X40;        //允许接收 0100 0000

6、RCON2寄存器

UTX0IF = 0;

7、IEN0寄存器

 IEN0 |= 0X84;            //开总中断，接收中断  1000 0100

8、UxUCR寄存器

接收中断

#pragma vector = URX0_VECTOR  //不清楚作用__interrupt void UART0_ISR(void){static char temp[1];temp[0] = U0DBUF;UART0_Send(temp, 1);URX0IF = 0;         //清中断标志}

发送

void UART0_Send(char *Data,int len)
{int i;for(i=0;i<len;i++){U0DBUF = *Data++;while(UTX0IF == 0);UTX0IF = 0;}
}