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Tutorials on PRACTICE

FREE RTOS idle task

Posted on : Wed , 08 2014 by : virusi

FreeRtosTaskStates

Theory on FREE RTOS idle task : The processor always needs something to execute – there must always be at least one task that can enter the Running state. To ensure this is the case an idle task is automatically created by the scheduler when vTaskStartScheduler() is called. The idle task has the lowest possible priority (priority 0) to ens...

FREE RTOS task states

Posted on : Wed , 07 2014 by : virusi

FreeRtosTaskStates

Theory on FREE RTOS task states : Today let’s take a look at all of the states in which a task can be. Fig.1 task states. As you can the task can be in 2 super states (running and ready). In the running state the task is active and running but in the blocking state the task is waiting to go into the running state. Only one task c...

FREE RTOS install

Posted on : Wed , 07 2014 by : virusi

FreeRtos_example

Theory on FREE RTOS : Today the response to the input data should be as fast as possible but because the data that should be processed is to big the program should be organized in such a manger that the processing of the big data should be done slower but the acquisition of the input data should be done faster and RTOS dose solve this proble...

Repetitive Interrupt Timer (RIT)

Posted on : Sat , 03 2014 by : virusi

SystemTickTimerApplication

THEORY ON RIT : The Repetitive Interrupt Timer provides a versatile means of generating interrupts at specified time intervals, without using a standard timer. It is intended for repeating interrupts that aren’t related to Operating System interrupts. However, it could be used as an alternative to the Cortex-M3 System Tick Timer. Repeti...

System Tick Timer

Posted on : Sat , 03 2014 by : virusi

SystemTickTimerApplication

Theory on System Tick Timer : The System Tick Timer is an integral part of the Cortex-M3. The System Tick Timer is intended to generate a fixed 10 millisecond interrupt for use by an operating system or other system management software. The System Tick Timer is a 24-bit timer that counts down to zero and generates an interrupt. The intent...

Joystick

Posted on : Sun , 02 2014 by : virusi

JoyStickApplication

LPC1768 Joystick Application : In this tutorial will take a look how we can work with a joystick using NXP LPC1768 microcontroller. Fig.1 Joystick Application Ok so let’s take a look at the program. AT INITIALIZATION : 1. Initialize system clock /* initialize clocks */ SystemInit(); 2. Configure PIN’s where joys...

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