Steven Kay
Example software of using the mbed-rtos to control a simple vehicle's on board computer
Dependencies: MCP23017 WattBob_TextLCD mbed-rtos mbed
Revision 0:f7d6ed1dfe3e, committed 2016-03-21
- Comitter:
- sk398
- Date:
- Mon Mar 21 13:57:22 2016 +0000
- Child:
- 1:cdf851858518
- Commit message:
- Initial commit. 2 threads running correctly. Think the Mutex works well but not sure how to text
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Mar 21 13:57:22 2016 +0000
@@ -0,0 +1,67 @@
+#include "mbed.h"
+#include "rtos.h"
+
+DigitalOut myled(LED1);
+AnalogIn Accelerometer(p20);
+
+Mutex readvalues;
+Semaphore read_s(1);
+
+
+float readValue = 1.0;
+
+typedef struct
+{
+ float value;
+} value_t;
+
+void thread1(void const *args)
+{
+ while(1)
+ {
+// read_s.wait();
+ value_t *mail = mail_box.alloc();
+
+ readvalues.lock();
+ value_t -> value = Accelerometer.read();
+ readvalues.unlock();
+// read_s.release();
+// printf("hello-1 = %1.3f\r\n",readValue);
+ Thread::wait(1000);
+ }
+
+}
+
+void thread2(void const *args)
+{
+ while(1)
+ {
+ readvalues.lock();
+// read_s.wait();
+ printf("readValue = %s\r\n",(const char*)args);
+// read_s.release();
+ readvalues.unlock();
+ Thread::wait(500);
+ }
+
+}
+
+int main() {
+ char array[10];
+
+ Thread thread_1(thread1);
+ Thread thread_2(thread2,(void *)array);
+
+ while(1) {
+
+ readvalues.lock();
+ int var = sprintf(array,"%1.3f",readValue);
+ printf("%s\r\n",array);
+ readvalues.unlock();
+
+ myled = 1;
+ wait(0.2);
+ myled = 0;
+ wait(0.2);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Mon Mar 21 13:57:22 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/mbed_official/code/mbed-rtos/#dfc27975e193
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Mar 21 13:57:22 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/87f2f5183dfb \ No newline at end of file