ex ELLA / SWSPI

Software SPI allows non-standard SPI pins to be used for interfacing with SPI devices

Fork of SWSPI by Dave Van Wagner

Diff: SWSPI.cpp

Revision:
3:8c19911bdb58
Parent:
2:eafe3ec5fbf8
--- a/SWSPI.cpp	Fri May 08 08:23:58 2015 +0000
+++ b/SWSPI.cpp	Fri May 08 08:29:50 2015 +0000
@@ -50,7 +50,7 @@
 void SWSPI::frequency(int hz)
 {
     // TODO: need wait_ns taking int
-    this->delay_s = 0.5f/hz;
+    this->delay_us = 500000/hz;
 }
 
 int SWSPI::write(int value)
@@ -63,22 +63,22 @@
         if (phase == 0)
         {
             if (miso && miso->read())
-                read |= (1 << bit);
+                read |= bit;
         }
 
         sclk.write(!polarity);
 
-        wait(delay_s);
+        if (delay_us) wait_us(delay_us);
 
         if (phase == 1)
         {
             if (miso && miso->read())
-                read |= (1 << bit);
+                read |= bit;
         }
 
         sclk.write(polarity);
 
-        wait(delay_s);
+        if (delay_us) wait_us(delay_us);
     }
     
     return read;