基于LM3S9B96的DS18B20温度显示.pdfVIP

基于LM3S9B96的DS18B20温度显示程序 -- persueadream /* ** ** 文件名称: temperature.c ** ** 摘 要； 基于LM3S9B96 ,利用DS18B20采集温度，然后将采集结果利用串口发送出 去。 ** ** 当前版本： 1.0 ** ** 作 者: persueadream ** ** 完成日期: 2013-03-05 ** ** 修改记录: 无 ** */ #include inc/hw_memmap.h #include inc/hw_types.h #include driverlib/adc.h #include driverlib/gpio.h #include driverlib/sysctl.h #include utils/uartstdio.h #define DELAY_1US (SysCtlClockGet()/3000000) //SysCtlDelay(x*DELAY_1US),x=1,delay 1us. //***************************************************************************** // // This function sets up UART0 to be used for a console to display information // as the example is running. // //***************************************************************************** void InitConsole(void) { // // Enable GPIO port A which is used for UART0 pins. // TODO: change this to whichever GPIO port you are using. // SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA); // // Configure the pin muxing for UART0 functions on port A0 and A1. // This step is not necessary if your part does not support pin muxing. // TODO: change this to select the port/pin you are using. // GPIOPinConfigure(GPIO_PA0_U0RX); GPIOPinConfigure(GPIO_PA1_U0TX); // // Select the alternate (UART) function for these pins. // TODO: change this to select the port/pin you are using. // GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1); // // Initialize the UART for console I/O. // UARTStdioInit(0); } // //将DS18B20总线拉高 // void DQ_H() { GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_0, 0x01); } // //将DS18B20总线拉低 // void DQ_L() { GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_0, 0x00); } // //读DS18B20总线数据 // unsigned int DQ_R(void) { unsigned int ret; GPIODirModeSet ( GPIO_PORTD_BASE ,GPIO_PIN_0 , GPIO_DIR_MODE_