标签: salvo

非常经典的从原理到实现的模拟串口实现……

ThisapplicationnotecoversaReal-TimeOperatingSystem(RTOS)runningonaPIC16F877.Theapplica-tioniswritteninCusingtheHI-TECHCcompiler.MPLAB®IDEisusedastheIntegratedDevelopmentEnvironment.ThisRTOSisunique,inthatitisintendedformicrocontrollerapplicationswherememoryisseverelylimited.TheapplicationrunsonaprototypePCBthatmonitorstemperature,acceptsuserinputanddisplaysimportanttemperatureinformation.MAN777Multi-TaskingonthePIC16F877withtheSalvoRTOSAuthors:ChrisValentiSYSTEMDESCRIPTIONMicrochipTechnologyInc.Theprototype'shardwareincludesa20MHzcrystal,fourthermistors,fourpotentiometers,aserialport,AndrewE.Kalman,Ph.D.EEPROM,four7-segmentLEDs,16-buttonkeypadPumpkin,Inc.andapiezobeeper.Thephrase,“normalconditions,”willbeusedfrequentlyinthisapplicationnote,indicat-INTRODUCTIO……