Revision 0:b3c7c9d52c61, committed 2010-12-04

Comitter:

guruimage

Date:

Sat Dec 04 06:49:44 2010 +0000

Commit message:

HW3B_Part1_runAtTrigger

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 04 06:49:44 2010 +0000
@@ -0,0 +1,60 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+Serial pc(USBTX, USBRX);
+DigitalOut out(p18);
+struct timeval
+{
+  unsigned long long tv_sec;        /* Seconds. */
+  unsigned long long tv_usec;    /* Microseconds. */
+};
+void Timer2_IRQHandler(void);
+void setupTrigger(void);
+void runAtTrigger(void(*trigFunc)(struct timeval *tv));
+void (*mytrigFunc)(struct timeval *tv);
+void trigFunc(struct timeval *tv);
+void getTime(struct timeval *tv);
+timeval globalTime;
+int main() {
+        
+        setupTrigger();
+        while(1){
+        wait(1);
+        out=!out;
+        myled=!myled;
+        }   
+
+}
+
+
+void setupTrigger(void){
+LPC_SC->PCONP |= 1 << 22; //power on timer 2;
+LPC_PINCON->PINSEL0 |= 0x00000300;//use capture cap2.0 (pin 30)
+LPC_PINCON->PINMODE0 |=0x00000100;//set pin mode of pin30(p0.04) as repeter
+LPC_TIM2->TCR = 0x2;         // Reset and set to timer mode
+LPC_TIM2->CTCR = 0x00000003;       //increment TC on rising and falling edge
+LPC_TIM2->CCR = 0x00000007;     //trigger interrupt on rising and falling edge
+LPC_TIM2->TCR = 1;           // Enable Timer
+
+ // Enable the ISR vector
+ NVIC_SetVector (TIMER2_IRQn, (uint32_t)&Timer2_IRQHandler);
+ NVIC_EnableIRQ(TIMER2_IRQn);
+ }
+void Timer2_IRQHandler(void)
+{
+     myled=!myled;
+     LPC_TIM2->IR = 63;
+     runAtTrigger(trigFunc);
+}
+void runAtTrigger(void (*trigFunc) (struct timeval *tv)){
+        
+        (*trigFunc)(&globalTime);
+}
+void trigFunc(struct timeval *tv){
+    getTime(tv);
+    printf("time is %llu!\r\n",tv->tv_usec);
+}   
+void getTime(struct timeval *tv){
+        tv->tv_sec =(unsigned long long int) 10;
+        tv->tv_usec=(unsigned long long int) 10000;
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Dec 04 06:49:44 2010 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e