CC2530芯片（iar软件）温控风扇

Question

串口波特率9600
通过CC2530芯片通风温湿度模块获取温度，将温度值通过串口软件发送到PC机，通过对温度值的大小（阈值自行设置）来控制风扇的开关

Answer 1

先参考下这个：

#include <REG51.H>
#include <stdio.h>

#define FAN_PIN P1_0
#define BAUDRATE 9600
#define TH_RS232_TXV2 P0_4

void UART_Init(void)
{
    P0SEL &= ~0x40;
    P2DIR &= ~0xC0;
    PERCFG |= 0x01;
    U1CSR = 0x00;
    U1BAUD = BAUDRATE;
    U1GCR = 8;
    U1CSR |=0x40;
    IEN0 |= 0x84;
    TH_RS232_TXV2 = 1;
}

void UART_Int_Enable(void)
{
   URX1IE=1;
   EA=1; 
}

void UART_Int_Disable(void)
{
  URX1IE=0;
}

void uart_send(char data)
{
   U1DBUF = data;
   while(!(U1CSR & 0x02)); 
   U1CSR &= ~0x02;
}

void control_fan(int temperature) 
{
    if(temperature >= 25)
    {
        FAN_PIN = 1;
    }
    else
    {
        FAN_PIN = 0;
    }
}

void UART_RX_ISR(void) interrupt 6
{
     if (URX1IF==1)
    {
         int temprature = U1DBUF; // Assuming Temperature data is sent over UART.
         control_fan(temperature);
         URX1IF=0;
    }
}

void main()
{
    UART_Init();
    UART_Int_Enable();
    while(1)
    {
        _nop_(); // Just do nothing.
    }
}