Ken Todotani / nRF51822-hrm1017

Nordic stack and drivers for the mbed BLE API Modified for HRM1017 for library 0.1.0

Fork of nRF51822 by Nordic Semiconductor

Files at this revision

API Documentation at this revision

Revision 47:db25ca6ed092, committed 2014-07-16

Comitter:
Rohit Grover
Date:
Wed Jul 16 10:56:11 2014 +0100
Parent:
46:2bfbbe290083
Child:
48:895748db3357
Commit message:
introduce nrf_delay.h; borrowed from the Nordic SDK

Changed in this revision

nordic/nrf-sdk/nrf_delay.h Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nordic/nrf-sdk/nrf_delay.h	Wed Jul 16 10:56:11 2014 +0100
@@ -0,0 +1,74 @@
+#ifndef _NRF_DELAY_H
+#define _NRF_DELAY_H
+
+// #include "nrf.h"
+
+/*lint --e{438, 522} "Variable not used" "Function lacks side-effects" */
+#if defined ( __CC_ARM   )
+static __ASM void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
+{
+loop
+        SUBS    R0, R0, #1
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        NOP
+        BNE    loop
+        BX     LR
+}
+#elif defined ( __ICCARM__ )
+static void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
+{
+__ASM (
+"loop:\n\t"
+       " SUBS R0, R0, #1\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " NOP\n\t"
+       " BNE loop\n\t");
+}
+#elif defined   (  __GNUC__  )
+static void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
+{
+    do
+    {
+    __ASM volatile (
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+        "NOP\n\t"
+    );
+    } while (--number_of_us);
+}
+#endif
+
+void nrf_delay_ms(uint32_t volatile number_of_ms);
+
+#endif