Ilya Krylov / SX127x1

123

Diff: sx127x.cpp

Revision:
27:da6341d9d5b1
Parent:
25:fa867fb9d2f6
Child:
29:b72ac28d59e9
--- a/sx127x.cpp	Mon Jul 18 21:13:50 2016 +0000
+++ b/sx127x.cpp	Thu Jul 28 00:57:22 2016 +0000
@@ -222,7 +222,7 @@
 {
     uint32_t frf;
     
-    frf = MHz / FREQ_STEP_MHZ;
+    frf = MHz / (float)FREQ_STEP_MHZ;
     write_u24(REG_FRFMSB, frf);
     
     if (MHz < 525)
@@ -258,11 +258,15 @@
 
 void SX127x::hw_reset()
 {
-    /* only a french-swiss design would have hi-Z deassert */
+    int in = reset_pin.read();
     reset_pin.output();
     reset_pin.write(1);
-    wait(0.05);
+    wait(0.05);    
+    if (in == 1) { /* pin is pulled up somewhere? */
+        reset_pin.write(0);
+        wait(0.005);
+    }
     reset_pin.input();
-    wait(0.05);
+    wait(0.005);
 }