jason berry
race condition
Dependencies: mbed C12832 LM75B
Revision 0:f1b1100243a3, committed 2021-09-27
- Comitter:
- jasonberry
- Date:
- Mon Sep 27 09:46:05 2021 +0000
- Commit message:
- race codition
Changed in this revision
diff -r 000000000000 -r f1b1100243a3 C12832.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/C12832.lib Mon Sep 27 09:46:05 2021 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/chris/code/C12832/#7de323fa46fe
diff -r 000000000000 -r f1b1100243a3 LM75B.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LM75B.lib Mon Sep 27 09:46:05 2021 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/neilt6/code/LM75B/#7ac462ba84ac
diff -r 000000000000 -r f1b1100243a3 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 27 09:46:05 2021 +0000
@@ -0,0 +1,100 @@
+#include "mbed.h"
+#include "rtos.h"
+
+#include "LM75B.h"
+#include "C12832.h"
+
+Mutex speaker_mutex;
+
+C12832 lcd(p5, p7, p6, p8, p11);
+LM75B sensor(p28,p27);
+Serial pc(USBTX,USBRX);
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+
+PwmOut spkr(p26);
+DigitalIn fire(p14);
+
+void led1_thread(void const *args) {
+ while (true) {
+
+ //play tone on speaker
+
+ //lock mutex
+ /////////////////////
+ speaker_mutex.lock();
+ for (float i=2000.0; i<10000.0; i+=100)
+ {
+ spkr.period(1.0/i);
+ spkr=0.5;
+
+ led1 = !led1;
+ Thread::wait(50);
+ }
+
+ spkr=0.0;
+ //unlock mutex
+ //////////////////////
+ speaker_mutex.unlock();
+
+ //wait for user to hit fire before repeating
+ while(!fire) {
+ led1 = !led1;}
+
+ }
+}
+
+void led2_thread(void const *args) {
+
+ //Try to open the LM75B
+ if (sensor.open()) {
+ printf("Device detected!\n");
+ }
+
+ while (true)
+ {
+
+ lcd.cls();
+ lcd.locate(0,3);
+ lcd.printf("Temp = %.3f\n", (float)sensor.temp());
+
+ //play one pulse tone for 1 second if temp high
+ if((float)sensor.temp() > 26)
+ {
+ //lock mutex
+ /////////////////////
+ speaker_mutex.lock();
+
+ spkr.period(1.0/1000);
+ spkr=0.5;
+
+
+ }
+ else
+ {
+
+
+ //turn off after every pulse
+ spkr=0.0;
+
+ //unlock mutex
+ //////////////////////
+ speaker_mutex.unlock();
+ }
+
+ led2 = !led2;
+ Thread::wait(850);
+ }
+}
+
+int main() {
+ Thread thread1(led1_thread);
+ Thread thread2(led2_thread);
+
+ while (true) {
+ led3 = !led3;
+ Thread::wait(1100);
+ }
+}
diff -r 000000000000 -r f1b1100243a3 mbed-os.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os.lib Mon Sep 27 09:46:05 2021 +0000 @@ -0,0 +1,1 @@ +https://github.com/ARMmbed/mbed-os/#2885c1b41e63158cb6faf5f107cd821ae06ef26c
diff -r 000000000000 -r f1b1100243a3 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Sep 27 09:46:05 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file