Case study Embedded System Design
/
Case_Study_rtos_signals
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Case_Study_rtos_signals2
by 
cathal deehy-power
main.cpp@4:3925b40d3296, 2015-02-13 (annotated)
- Committer:
- cathal66
- Date:
- Fri Feb 13 14:36:56 2015 +0000
- Revision:
- 4:3925b40d3296
- Parent:
- 1:6a8fcc666593
comments added with 2 flags
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| emilmont | 1:6a8fcc666593 | 1 | #include "mbed.h" |
| emilmont | 1:6a8fcc666593 | 2 | #include "rtos.h" |
| emilmont | 1:6a8fcc666593 | 3 | |
| cathal66 | 4:3925b40d3296 | 4 | PwmOut led(p25); //setup LED for PWM |
| emilmont | 1:6a8fcc666593 | 5 | |
| emilmont | 1:6a8fcc666593 | 6 | void led_thread(void const *argument) { |
| emilmont | 1:6a8fcc666593 | 7 | while (true) { |
| emilmont | 1:6a8fcc666593 | 8 | // Signal flags that are reported as event are automatically cleared. |
| cathal66 | 4:3925b40d3296 | 9 | Thread::signal_wait(0x2); //Wait for flag to be set after thread wait for 2000 msec |
| cathal66 | 4:3925b40d3296 | 10 | led = 0.5; //dim LED to half brightness |
| cathal66 | 4:3925b40d3296 | 11 | Thread::signal_wait(0x1); //Wait for flag to be set after thread wait for 100 msec |
| cathal66 | 4:3925b40d3296 | 12 | led = 1; //turn off LED |
| emilmont | 1:6a8fcc666593 | 13 | } |
| emilmont | 1:6a8fcc666593 | 14 | } |
| emilmont | 1:6a8fcc666593 | 15 | |
| emilmont | 1:6a8fcc666593 | 16 | int main (void) { |
| cathal66 | 4:3925b40d3296 | 17 | Thread thread(led_thread); //start thread |
| emilmont | 1:6a8fcc666593 | 18 | |
| emilmont | 1:6a8fcc666593 | 19 | while (true) { |
| cathal66 | 4:3925b40d3296 | 20 | Thread::wait(1000); //thread wait for 1000 msec |
| cathal66 | 4:3925b40d3296 | 21 | thread.signal_set(0x1); //set the flag for "0x1" |
| cathal66 | 4:3925b40d3296 | 22 | Thread::wait(2000); //Thread wait for 2000 msec |
| cathal66 | 4:3925b40d3296 | 23 | thread.signal_set(0x2); //set the flag for "0x2 |
| emilmont | 1:6a8fcc666593 | 24 | } |
| emilmont | 1:6a8fcc666593 | 25 | } |