mbed official / Mbed 2 deprecated cmsis_rtos_mutex

Basic example showing the CMSIS-RTOS mutex API

Dependencies:   mbed mbed-rtos

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_mutex

mutex example

Last commit 23 Jun 2017 by mbed_example

main.cpp@2:1e00d038091b, 2012-11-23 (annotated)

Committer:
emilmont
Date:
Fri Nov 23 10:51:24 2012 +0000
Revision:
2:1e00d038091b
Parent:
1:1af1f0df8694 
update libraries

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 1:1af1f0df8694 1 #include "mbed.h"
emilmont 1:1af1f0df8694 2 #include "cmsis_os.h"
emilmont 1:1af1f0df8694 3
emilmont 1:1af1f0df8694 4 osMutexId stdio_mutex;
emilmont 1:1af1f0df8694 5 osMutexDef(stdio_mutex);
emilmont 1:1af1f0df8694 6
emilmont 1:1af1f0df8694 7 void notify(const char* name, int state) {
emilmont 1:1af1f0df8694 8 osMutexWait(stdio_mutex, osWaitForever);
emilmont 1:1af1f0df8694 9 printf("%s: %d\n\r", name, state);
emilmont 1:1af1f0df8694 10 osMutexRelease(stdio_mutex);
emilmont 1:1af1f0df8694 11 }
emilmont 1:1af1f0df8694 12
emilmont 1:1af1f0df8694 13 void test_thread(void const *args) {
emilmont 1:1af1f0df8694 14 while (true) {
emilmont 1:1af1f0df8694 15 notify((const char*)args, 0); osDelay(1000);
emilmont 1:1af1f0df8694 16 notify((const char*)args, 1); osDelay(1000);
emilmont 1:1af1f0df8694 17 }
emilmont 1:1af1f0df8694 18 }
emilmont 1:1af1f0df8694 19
emilmont 1:1af1f0df8694 20 void t2(void const *argument) {test_thread("Th 2");}
emilmont 1:1af1f0df8694 21 osThreadDef(t2, osPriorityNormal, DEFAULT_STACK_SIZE);
emilmont 1:1af1f0df8694 22
emilmont 1:1af1f0df8694 23 void t3(void const *argument) {test_thread("Th 3");}
emilmont 1:1af1f0df8694 24 osThreadDef(t3, osPriorityNormal, DEFAULT_STACK_SIZE);
emilmont 1:1af1f0df8694 25
emilmont 1:1af1f0df8694 26 int main() {
emilmont 1:1af1f0df8694 27 stdio_mutex = osMutexCreate(osMutex(stdio_mutex));
emilmont 1:1af1f0df8694 28
emilmont 1:1af1f0df8694 29 osThreadCreate(osThread(t2), NULL);
emilmont 1:1af1f0df8694 30 osThreadCreate(osThread(t3), NULL);
emilmont 1:1af1f0df8694 31
emilmont 1:1af1f0df8694 32 test_thread((void *)"Th 1");
emilmont 1:1af1f0df8694 33 }