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authorPaul Selkirk <paul@psgd.org>2016-04-14 18:50:38 -0400
committerPaul Selkirk <paul@psgd.org>2016-04-14 18:50:38 -0400
commit4a38cf6f44d1c013cbe794093ea6c5b50337431a (patch)
tree148201449b481794ff839cd15d335f40e0f91c9d /projects/rtos-test/mutex-test.c
parent79b1ba7104dba52dbfacf11a07305702889f440b (diff)
import mbed rtos library
Diffstat (limited to 'projects/rtos-test/mutex-test.c')
-rw-r--r--projects/rtos-test/mutex-test.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/projects/rtos-test/mutex-test.c b/projects/rtos-test/mutex-test.c
new file mode 100644
index 0000000..402f9ba
--- /dev/null
+++ b/projects/rtos-test/mutex-test.c
@@ -0,0 +1,40 @@
+#include "cmsis_os.h"
+
+#include "stm-init.h"
+#include "stm-uart.h"
+
+osMutexId stdio_mutex;
+osMutexDef(stdio_mutex);
+
+void notify(const char* name, int state) {
+ osMutexWait(stdio_mutex, osWaitForever);
+ //printf("%s: %d\n\r", name, state);
+ uart_send_string(name);
+ uart_send_string(": ");
+ uart_send_integer(state, 1);
+ uart_send_string("\r\n");
+ osMutexRelease(stdio_mutex);
+}
+
+void test_thread(void const *args) {
+ while (1) {
+ notify((const char*)args, 0); osDelay(1000);
+ notify((const char*)args, 1); osDelay(1000);
+ }
+}
+
+void t2(void const *argument) {test_thread("Th 2");}
+osThreadDef(t2, osPriorityNormal, DEFAULT_STACK_SIZE);
+
+void t3(void const *argument) {test_thread("Th 3");}
+osThreadDef(t3, osPriorityNormal, DEFAULT_STACK_SIZE);
+
+int main() {
+ stm_init();
+ stdio_mutex = osMutexCreate(osMutex(stdio_mutex));
+
+ osThreadCreate(osThread(t2), NULL);
+ osThreadCreate(osThread(t3), NULL);
+
+ test_thread((void *)"Th 1");
+}