This application note covers a Real-Time Operating System (RTOS) running on a PIC16F877. The applica- tion is written in C using the HI-TECH C compiler. MPLAB ® IDE is used as the Integrated Development Environment. This RTOS is unique, in that it is intended for microcontroller applications where memory is severely limited. The application runs on a prototype PCB that monitors temperature, accepts user input and displays important temperature information.M AN777 Multi-Tasking on the PIC16F877 with the Salvo RTOS Authors: Chris Valenti SYSTEM DESCRIPTION Microchip Technology Inc. The prototype's hardware includes a 20 MHz crystal, four thermistors, four potentiometers, a serial port, Andrew E. Kalman, Ph.D. EEPROM, four 7-segment LEDs, 16-button keypad Pumpkin, Inc. and a piezo beeper. The phrase, “normal conditions,” will be used frequently in this application note, indicat- INTRODUCTIO……