Alex Whittemore
Simple program that demonstrates how one might send signals to arbitrary threads from an ISR.
Revision 0:32a3e697c11f, committed 2012-04-10
- Comitter:
- alexwhittemore
- Date:
- Tue Apr 10 13:26:44 2012 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 32a3e697c11f main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Apr 10 13:26:44 2012 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+#include "rtos.h"
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+Serial pc(USBTX,USBRX);
+
+Thread *LED_THREAD_POINTER;
+
+uint32_t UART_0_RBR;
+
+void UART0_ISR(){
+ UART_0_RBR = LPC_UART0->RBR; // Clear the RBR flag to make sure the interrupt doesn't loop
+ led3=!led3;
+ (*LED_THREAD_POINTER).signal_set(0x1); // Dereference the LED_THREAD_POINTER then set the signal 0x1 flag of the thread it points to
+}
+
+void led3blinker(void const *argument){
+ while(true){
+ Thread::signal_wait(0x1);
+ led2=!led2;
+ //Thread::wait(233);
+ }
+}
+
+int main() {
+ Thread led3blinkerthread(led3blinker);
+ pc.attach(&UART0_ISR);
+ LED_THREAD_POINTER = &led3blinkerthread; // Set the globally-accessible thread pointer
+
+ while(true){
+ led1=!led1;
+ Thread::wait(1000);
+ led3blinkerthread.signal_set(0x1);
+ }
+}
diff -r 000000000000 -r 32a3e697c11f mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Apr 10 13:26:44 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/737756e0b479