mbed official / Mbed 2 deprecated rtos_isr

Basic example showing the Queue API with a producer in an ISR and a consumer in a normal thread.

Dependencies:   mbed-rtos mbed

mbed 2 and mbed OS 5

This is an mbed 2 example. mbed OS 5 has integrated the mbed library with mbed-rtos. For an mbed-os example, please see:

Import programrtos_isr

isr example

Last commit 15 Oct 2018 by mbed_example

main.cpp@5:23a456bf0487, 2017-02-15 (annotated)

Committer:
mbed_official
Date:
Wed Feb 15 13:59:58 2017 -0600
Revision:
5:23a456bf0487
Parent:
4:40078e697304 
Revert update to mbed-os.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 1:3043ec651794 1 #include "mbed.h"
mbed_official 5:23a456bf0487 2 #include "rtos.h"
mbed_official 0:4979ad0f5cb9 3
emilmont 1:3043ec651794 4 Queue<uint32_t, 5> queue;
mbed_official 5:23a456bf0487 5
emilmont 1:3043ec651794 6 DigitalOut myled(LED1);
emilmont 1:3043ec651794 7
emilmont 1:3043ec651794 8 void queue_isr() {
emilmont 1:3043ec651794 9 queue.put((uint32_t*)2);
emilmont 1:3043ec651794 10 myled = !myled;
emilmont 1:3043ec651794 11 }
emilmont 1:3043ec651794 12
mbed_official 5:23a456bf0487 13 void queue_thread(void const *args) {
emilmont 1:3043ec651794 14 while (true) {
emilmont 1:3043ec651794 15 queue.put((uint32_t*)1);
mbed_official 5:23a456bf0487 16 Thread::wait(1000);
emilmont 1:3043ec651794 17 }
emilmont 1:3043ec651794 18 }
emilmont 1:3043ec651794 19
emilmont 1:3043ec651794 20 int main (void) {
mbed_official 5:23a456bf0487 21 Thread thread(queue_thread);
mbed_official 5:23a456bf0487 22
mbed_official 5:23a456bf0487 23 Ticker ticker;
emilmont 1:3043ec651794 24 ticker.attach(queue_isr, 1.0);
mbed_official 5:23a456bf0487 25
emilmont 1:3043ec651794 26 while (true) {
emilmont 1:3043ec651794 27 osEvent evt = queue.get();
emilmont 1:3043ec651794 28 if (evt.status != osEventMessage) {
emilmont 1:3043ec651794 29 printf("queue->get() returned %02x status\n\r", evt.status);
emilmont 1:3043ec651794 30 } else {
emilmont 1:3043ec651794 31 printf("queue->get() returned %d\n\r", evt.value.v);
emilmont 1:3043ec651794 32 }
emilmont 1:3043ec651794 33 }
emilmont 1:3043ec651794 34 }