Diff: common/wait_api.c

Revision:

1:71204b8406f2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/wait_api.c	Fri Jul 24 21:01:44 2015 +1000
@@ -0,0 +1,30 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "wait_api.h"
+#include "us_ticker_api.h"
+
+void wait(float s) {
+    wait_us(s * 1000000.0f);
+}
+
+void wait_ms(int ms) {
+    wait_us(ms * 1000);
+}
+
+void wait_us(int us) {
+    uint32_t start = us_ticker_read();
+    while ((us_ticker_read() - start) < (uint32_t)us);
+}