-1-学习情境三数字式温度计制作与调试说明书电子1034班组别:第四组组员:XXXXXX2012年3月8日-2-目录一、工作任务..............................................................................................-3-二、总体设计思路......................................................................................-3-2.1整体功能说明..................................................-3-2.2总体框图......................................................-3-三、硬件设计..................................................................................................-3-3.1硬件模块组成..................................................-3-3.2各模块说明....................................................-3-1)主控制器.........................................................................................................................-3-2)显示驱动与显示电路...........................................................................................................-4-3)测温模块...............................................................................................................................-4-4)报警电路...............................................................................................................................-4-5)复位电路...............................................................................................................................-5-四、软件设计..................................................................................................-5-4.1程序结构......................................................-5-4.2各模块说明及流程图............................................-6-1)主程序流程图.........................................................................................................................-6-2)读出温度子程序流程图.......................................................................................................-6-3)显示数据刷新子程序流程图...............................................................................................-7-4)计算温度子程序流程...........................................................................................................-7-5)温度转换命令子程序流程图...............................................................................................-8-4.3程序清单......................................................-8-五、调试过程................................................................................................-13-5.1调试方法与步骤...............................................-13-5.2调试结果.....................................................-13-六、附件........................................................................................................-14--3-一、工作任务开发完成一个简易的数字式温度计。二、总体设计思路2.1整体功能说明开发完成一个简易的数字式温度计。测温范围在-55~125℃,误差在±0.5℃以内。温度测量间隔时间选择1~2s。通过键盘扩展(行列式或独立式按键),有温度上下限值及温度报警功能。在数字式温度计的制作中主要以51单片机(AT89C51)来控制,用温度传感器检测外界的温度,软件的显示子程序用四位一体数码管显示出来,精确到1位小数点,在超出测温范围时,进行报警功能。2.2总体框图测温按键报警显示显示驱动系统框图单片机8051复位电路时钟晶振三、硬件设计3.1硬件模块组成本电路由单片机,测温电路,复位电路,报警电路,显示驱动与显示电路等组成了数字式温度计。3.2各模块说明1)主...