mbed_example
/
events_ex_1
Additional events example
main.cpp@0:aea2e03f5625, 2017-01-19 (annotated)
- Committer:
- mab5449
- Date:
- Thu Jan 19 14:24:27 2017 -0600
- Revision:
- 0:aea2e03f5625
- Child:
- 1:3ee1c217f3cb
Initial commit. Ported code snippets to mbed OS 5 projects
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mab5449 | 0:aea2e03f5625 | 1 | #include "mbed.h" |
mab5449 | 0:aea2e03f5625 | 2 | #include "mbed_events.h" |
mab5449 | 0:aea2e03f5625 | 3 | |
mab5449 | 0:aea2e03f5625 | 4 | DigitalOut led1(LED1); |
mab5449 | 0:aea2e03f5625 | 5 | InterruptIn sw(SW2); |
mab5449 | 0:aea2e03f5625 | 6 | EventQueue queue(32 * EVENTS_EVENT_SIZE); |
mab5449 | 0:aea2e03f5625 | 7 | Thread t; |
mab5449 | 0:aea2e03f5625 | 8 | |
mab5449 | 0:aea2e03f5625 | 9 | void rise_handler(void) { |
mab5449 | 0:aea2e03f5625 | 10 | printf("rise_handler in context %p\r\n", Thread::gettid()); |
mab5449 | 0:aea2e03f5625 | 11 | // Toggle LED |
mab5449 | 0:aea2e03f5625 | 12 | led1 = !led1; |
mab5449 | 0:aea2e03f5625 | 13 | } |
mab5449 | 0:aea2e03f5625 | 14 | |
mab5449 | 0:aea2e03f5625 | 15 | void fall_handler(void) { |
mab5449 | 0:aea2e03f5625 | 16 | printf("fall_handler in context %p\r\n", Thread::gettid()); |
mab5449 | 0:aea2e03f5625 | 17 | // Toggle LED |
mab5449 | 0:aea2e03f5625 | 18 | led1 = !led1; |
mab5449 | 0:aea2e03f5625 | 19 | } |
mab5449 | 0:aea2e03f5625 | 20 | |
mab5449 | 0:aea2e03f5625 | 21 | int main() { |
mab5449 | 0:aea2e03f5625 | 22 | // Start the event queue |
mab5449 | 0:aea2e03f5625 | 23 | t.start(callback(&queue, &EventQueue::dispatch_forever)); |
mab5449 | 0:aea2e03f5625 | 24 | printf("Starting in context %p\r\n", Thread::gettid()); |
mab5449 | 0:aea2e03f5625 | 25 | // The 'rise' handler will execute in IRQ context |
mab5449 | 0:aea2e03f5625 | 26 | sw.rise(rise_handler); |
mab5449 | 0:aea2e03f5625 | 27 | // The 'fall' handler will execute in the context of thread 't' |
mab5449 | 0:aea2e03f5625 | 28 | sw.fall(queue.event(fall_handler)); |
mab5449 | 0:aea2e03f5625 | 29 | } |
mab5449 | 0:aea2e03f5625 | 30 |