Naeem Mannan nmannan97
nmannan97
/ RTOS,Lab7,EE138
Last active
May 25, 2018 06:06
RTOS lab to make operating system for a PID controlled motor. One button would make a motor run at 1500 RPM with PID. A second button would control the position. The last would allow for free movement of the motor.
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| //***************Lab 7*************/ | |
| /*Notes: | |
| ~Mutex = mutual exclusion | |
| ~A semaphore that is used for mutual exclusion must always be returned | |
| ~A mutex is a type of semaphore | |
| ~To create a mutex type semaphore, use the xSemaphoreCreateMutex() API function. | |
| ~xSemaphoreTake( xMutex, portMAX_DELAY ); | |
| ~ The following line will only execute once the mutex has been successfully obtained. | |
| ~xSemaphoreGive( xMutex ); The mutex MUST be given back! | |
| ~main() simply creates the mutex, creates the tasks, then starts the scheduler |
nmannan97
/ RTOS,Lab7,EE138
Created
May 25, 2018 05:42
RTOS lab using FreeRTOS 8.0.1 for Atmel studios for a SAMD20J and pre-made PCB board for hardware interfacing. Operating System made from scratch to utilize a better timing management instead of the basic programming. RTOS was utilized to control a PID system for a motor to move at 1500 RPM on command by user input from a keypad. On a separate c…
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| //***************Lab 7*************/ | |
| /*Notes: | |
| ~Mutex = mutual exclusion | |
| ~A semaphore that is used for mutual exclusion must always be returned | |
| ~A mutex is a type of semaphore | |
| ~To create a mutex type semaphore, use the xSemaphoreCreateMutex() API function. | |
| ~xSemaphoreTake( xMutex, portMAX_DELAY ); | |
| ~ The following line will only execute once the mutex has been successfully obtained. | |
| ~xSemaphoreGive( xMutex ); The mutex MUST be given back! | |
| ~main() simply creates the mutex, creates the tasks, then starts the scheduler |