Vinh Le

 MCU: Freescale Kinetis K60512 ARM Cortex M4  Bus Frequency: 50MHz  Available Memory: ◦ 512KB Flash ◦ 64KB SRAM  Memory Required: ◦ 10KB Flash ◦ 4KB SRAM

 MQX RTOS provided by Freescale ◦ Real-time preemptive multitasking Kernel  Events Services for Task Synchronization ◦ Semaphores, Mutexes, and Messages  Time Delays ◦ Tick period: 1ms  Real-Time TCP/IP Communication Suite (RTCS) ◦ TCP/IP networking application protocols for Web Communication  Tasks ◦ Start Up, Key Task, UI Task, Message Task,

Description:  Enables all of MCU and Kernel resources and initializes system.  Creates other tasks  Priority #4  Period: Once (at start-up)  Execution time ~ 1s

Description:  Reads the keypad and updates the buffer  Priority #7  Period 10 ms  Execution time ~ 2.2us

Description:  Handles User Inputs ◦ Allows to set the address for the device ◦ Displays Message ◦ Navigate through messages  Priority #5  Period 0.5 sec  Execution time ~ 2 ms

Description:  Retrieve message data ◦ Download data and update message list  Priority #6  Period: 0.5 sec  Execution time ~ 50 ms

L max = 10.4% L average = 3.5%

TasksPublic Functions and Data Main.cStartTask UITask Key.cKeyTaskKeyInit() Keypend() LCD.cLcdInit() LcdClrDisp() LcdDispStrg() LcdMoveCursor() LcdCursor() Message.cMessageTask Data Message List