Marco Zecchini / OneWire

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependents:   DS1820

Diff: OneWire.cpp

Revision:
13:573a546ef5f9
Parent:
12:27a1b359b95c
diff -r 27a1b359b95c -r 573a546ef5f9 OneWire.cpp
--- a/OneWire.cpp	Sun Mar 10 13:17:38 2019 +0000
+++ b/OneWire.cpp	Wed Mar 13 10:05:02 2019 +0000
@@ -187,20 +187,21 @@
  */
 uint8_t OneWire::read_bit(void)
 {
-    const int SAMPLE_POINT = 10;
+    //const int SAMPLE_POINT = 9; // 10 works for f401re
     uint8_t r;
-    int     t;
+    //int     t;
 
     OUTPUT();
     WRITE(0);
-    timer.start();
+    //timer.start();
     INPUT();
-    t = timer.read_us();
-    if (t < SAMPLE_POINT)
-        WAIT_US(SAMPLE_POINT - t);
+    //t = timer.read_us();
+    //if (t < SAMPLE_POINT)
+    //    WAIT_US(SAMPLE_POINT - t);
+    WAIT_US(1);
     r = READ();
-    timer.stop();
-    timer.reset();
+    //timer.stop();
+    //timer.reset();
     WAIT_US(55);
     //printf("t = %d\r\n", t);
     return r;