Revision 0:c162b0b96146, committed 2010-01-25

Comitter:

no2chem

Date:

Mon Jan 25 05:56:58 2010 +0000

Commit message:

Changed in this revision

diff -r 000000000000 -r c162b0b96146 GetTickCount/GetTickCount.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GetTickCount/GetTickCount.cpp	Mon Jan 25 05:56:58 2010 +0000
@@ -0,0 +1,5 @@
+volatile unsigned int TickCount;
+
+extern "C" void SysTick_Handler (void) {
+    TickCount+= 10;
+}
\ No newline at end of file

diff -r 000000000000 -r c162b0b96146 GetTickCount/GetTickCount.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GetTickCount/GetTickCount.h	Mon Jan 25 05:56:58 2010 +0000
@@ -0,0 +1,31 @@
+/* mbed GetTickCount Library
+  * Copyright (c) 2010 Michael Wei
+  */ 
+  
+//shouldn't have to include, but fixes weird problems with defines
+#include "LPC1768/LPC17xx.h"
+
+#ifndef MBED_TICKCOUNT_H 
+#define MBED_TICKCOUNT_H 
+extern volatile unsigned int TickCount;
+
+inline void GetTickCount_Start(void) {
+    //CMSIS SYSTICK Config
+    SysTick_Config(SystemCoreClock / 100);               /* Generate interrupt every 10 ms */
+}
+
+inline void GetTickCount_Stop(void) {
+    SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (0<<SYSTICK_ENABLE) | (0<<SYSTICK_TICKINT);    /* Disable SysTick IRQ and SysTick Timer */
+}
+
+inline void GetTickCount_Reset(void) {
+     SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (0<<SYSTICK_ENABLE) | (0<<SYSTICK_TICKINT);    /* Disable SysTick IRQ and SysTick Timer */
+     TickCount = 0;
+     SysTick->CTRL = (1 << SYSTICK_CLKSOURCE) | (1<<SYSTICK_ENABLE) | (1<<SYSTICK_TICKINT);    /* Enable SysTick IRQ and SysTick Timer */
+}
+
+inline unsigned int GetTickCount(void)
+{
+    return TickCount;
+}
+#endif
\ No newline at end of file

diff -r 000000000000 -r c162b0b96146 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jan 25 05:56:58 2010 +0000
@@ -0,0 +1,15 @@
+#include "mbed.h"
+#include "GetTickCount/GetTickCount.h"
+
+int main() {
+    printf("GetTickCount() Demo App\r\n");
+    printf("Timer resolution is 10ms.\r\n");
+    printf("Sample will show the system timer every second.");
+    
+    GetTickCount_Start();
+    while(1) {
+        
+                printf("Ticks: %d\r\n", GetTickCount());
+                wait(1);
+    }
+}

diff -r 000000000000 -r c162b0b96146 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Jan 25 05:56:58 2010 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/49a220cc26e0