Diff: pause.cpp

Revision:

0:ade62dde274b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pause.cpp	Thu Dec 10 17:45:30 2015 +0000
@@ -0,0 +1,23 @@
+#ifndef PAUSE_CPP
+#define PAUSE_CPP
+#include "mbed.h"
+
+// http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0496b/BABDJCCI.html
+#pragma diag_suppress 174 // suppress the warning "Expression has no effect".  This warning is displayed for each of these functions.
+
+
+
+// these are various delays
+inline void pause(uint32_t seconds) {
+    for(seconds; seconds > 0; seconds--) for(uint32_t i = 0x1ffffff; i > 0; i--) asm("nop");
+}
+
+inline void pause_ms(uint32_t milliseconds) {
+    for(milliseconds; milliseconds > 0; milliseconds--) for(uint32_t i = 0x8312; i > 0; i--) asm("nop");
+}
+
+inline void pause_us(uint32_t microseconds) {
+    for(microseconds; microseconds > 0; microseconds--) for(uint32_t i = 0x21; i > 0; i--) asm("nop");
+}
+
+#endif 
\ No newline at end of file