William Singleton
/
595_Lab_8_Part_IV_Queue
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Revision 13:510fb9ae8592, committed 2020-05-03
- Comitter:
- wssingle
- Date:
- Sun May 03 19:15:05 2020 +0000
- Parent:
- 12:4e3f46e615d9
- Commit message:
- Lab 8 part 4
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Mon Mar 30 18:54:14 2020 +0000
+++ b/main.cpp Sun May 03 19:15:05 2020 +0000
@@ -0,0 +1,42 @@
+#include "mbed.h"
+#include "rtos.h"
+
+typedef struct {
+ float voltage; /* AD result of measured voltage */
+ float current; /* AD result of measured current */
+ uint32_t counter; /* A counter value */
+} message_t;
+
+MemoryPool<message_t, 16> mpool;
+Queue<message_t, 16> queue;
+
+/* Send Thread */
+void send_thread (void) {
+ uint32_t i = 0;
+ while (true) {
+ i++; // fake data update
+ message_t *message = mpool.alloc();
+ message->voltage = (i * 0.1) * 33;
+ message->current = (i * 0.1) * 11;
+ message->counter = i;
+ queue.put(message);
+ Thread::wait(1000);
+ }
+}
+
+int main (void) {
+ Thread thread;
+ thread.start(callback(send_thread));
+
+ while (true) {
+ osEvent evt = queue.get();
+ if (evt.status == osEventMessage) {
+ message_t *message = (message_t*)evt.value.p;
+ printf("\nVoltage: %.2f V\n\r" , message->voltage);
+ printf("Current: %.2f A\n\r" , message->current);
+ printf("Number of cycles: %u\n\r", message->counter);
+
+ mpool.free(message);
+ }
+ }
+}
\ No newline at end of file