Diff: BurstSPI_KL25Z.cpp

Revision:

3:7d9b64d67b22

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BurstSPI_KL25Z.cpp	Thu Jul 04 19:03:58 2013 +0000
@@ -0,0 +1,24 @@
+#ifdef TARGET_KL25Z
+#include "BurstSPI.h"
+
+void BurstSPI::fastWrite(int data) {
+    //Wait until FIFO has space
+    while(((_spi.spi->S) & SPI_S_SPTEF_MASK) == 0);
+    //transmit data
+    _spi.spi->D = data;
+    }
+
+void BurstSPI::clearRX( void ) {
+    //We put in a delay here, this function shouldn't be called very often, so not a huge problem
+    //Without delay you will rise the CS line before it is finished (been there, done that)
+    //We use time required to transmit 20 bits (8 bits being transmitted, 8 bits in FIFO, 4 bits safety margin
+    
+    float bytetime = 20.0/_hz;
+    wait(bytetime);    
+    
+    //Wait until status is flagged that we can read, read:
+    while (_spi.spi->S & SPI_S_SPRF_MASK == 0);
+    int dummy = _spi.spi->D;
+
+}
+#endif
\ No newline at end of file