Diff: temp/IOgpiospi.cpp

Revision:

7:4aa3dac73b66

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/temp/IOgpiospi.cpp	Sun Mar 21 18:20:15 2021 +0100
@@ -0,0 +1,56 @@
+#include "IOgpiospi.h"
+
+#include "Pinovi.h"
+/*************************************************************************************************************************************** */
+//   mosi = PTD6, miso = PTD7, clock = PTD5
+
+
+
+C_gpioSpi::C_gpioSpi( /*PinName Mosi, PinName Miso, PinName spiClock*/)
+{
+    p_MOSI = new DigitalIn( Mosi, PullUp);
+    p_MISO = new DigitalOut( Miso, 1);
+    p_SpiClock = new InterruptIn( SpiClock, PullUp);
+     
+
+     
+     bitCount = 0;
+    p_SpiClock->fall( [this](){ spiClockCount_fun(); } );
+}
+
+void C_gpioSpi::spi_monitor( void )
+{
+    static char old_bit=0;
+    if( old_bit && bitCount && (old_bit == bitCount) ) { bitCount=0;}
+    old_bit = bitCount;
+
+}
+
+void C_gpioSpi::spiClockCount_fun(void)
+{
+
+   bitCount++;
+
+    readData <<= 1;
+    if( p_MOSI->read() )  readData |= 1;
+    else readData &= (~1);
+
+    if( writeData & 0x80 ) p_MISO->write(1);
+    else p_MISO->write(0);
+    writeData <<= 1;
+
+    if(bitCount>=8) 
+    {
+        bitCount = 0;
+ //       if(transfer_fun) transfer_fun( &writeData, readData );
+
+
+
+        spiByteTransfer( &writeData, readData);
+     
+    }
+
+ }
+
+
+