asad patel / stm-spirit1-rf-driver

Prototype RF driver for STM Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo.

Dependents:   DISCO_IOT-wifi_client

Fork of stm-spirit1-rf-driver by ST

Files at this revision

API Documentation at this revision

Revision 71:4a7772415d9c, committed 2017-07-18

Comitter:
Wolfgang Betz
Date:
Tue Jul 18 09:53:41 2017 +0200
Parent:
70:19b5f9b9ba80
Child:
72:413cb97ac077
Commit message:
Optimize `BUSYWAIT_UNTIL()`

Changed in this revision

source/SimpleSpirit1.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/source/SimpleSpirit1.cpp	Thu Jul 13 09:21:06 2017 +0200
+++ b/source/SimpleSpirit1.cpp	Tue Jul 18 09:53:41 2017 +0200
@@ -13,15 +13,9 @@
         do { \
             uint32_t start = us_ticker_read(); \
             uint32_t limit = (uint32_t)millisecs*1000U; \
-            \
             while (!(cond)) { \
                 uint32_t now = us_ticker_read(); \
-                \
-                if(now >= start) { \
-                    if((now - start) > limit) break; \
-                } else { \
-                    if((now + ~start) > limit) break; \
-                } \
+                if((now - start) > limit) break; \
             } \
         } while(0)