Revision 0:0f32ac84dca5, committed 2012-04-10

Comitter:

davervw

Date:

Tue Apr 10 04:42:12 2012 +0000

Commit message:

SPIDebug library initial commit

Changed in this revision

diff -r 000000000000 -r 0f32ac84dca5 SPIDebug.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPIDebug.cpp	Tue Apr 10 04:42:12 2012 +0000
@@ -0,0 +1,71 @@
+///////////////////////////////////////////////////////////////////////////////
+// SPIDebug.h
+//
+// COPYRIGHT (c) 2012 by David Van Wagner
+//
+// dave@vanwagner.org
+// http://techwithdave.blogspot.com
+//
+// License: Creative Commons Attribution-ShareAlike 3.0 Unported License
+// http://creativecommons.org/licenses/by-sa/3.0/
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SPIDebug.h"
+
+bool SPIDebug::debug = true; // default on
+
+SPIDebug::SPIDebug(PinName mosi, PinName miso, PinName sclk, const char *name)
+{
+    if (debug)
+        printf("SPI(%08x, %08x, %08x, %s)\n", mosi, miso, sclk, name);
+    spi = new SPI(mosi, miso, sclk, name);
+}
+
+SPIDebug::~SPIDebug()
+{
+    delete spi;
+}
+
+void SPIDebug::format(int bits, int mode)
+{
+    if (debug)
+        printf("SPI.format(%d, %d)\n", bits, mode);
+    spi->format(bits, mode);
+}
+
+void SPIDebug::frequency(int hz)
+{
+    if (debug)
+        printf("SPI.frequency(%d)\n", hz);
+    spi->frequency(hz);
+}
+
+int SPIDebug::write(int value)
+{
+    int result = spi->write(value);
+    if (debug)
+        printf(">%02x <%02x ", value, result);
+    return result;
+}
+
+CSDebug::CSDebug(PinName pin)
+{
+    cs = new DigitalOut(pin);
+}
+
+CSDebug::~CSDebug()
+{
+    delete cs;
+}
+
+void CSDebug::write(bool state)
+{
+    cs->write(state);
+    if (SPIDebug::debug)
+    {
+        if (state == false)
+            printf("SPI CS\n");
+        else
+            printf("\n");
+    }
+}

diff -r 000000000000 -r 0f32ac84dca5 SPIDebug.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPIDebug.h	Tue Apr 10 04:42:12 2012 +0000
@@ -0,0 +1,38 @@
+///////////////////////////////////////////////////////////////////////////////
+// SPIDebug.h
+//
+// COPYRIGHT (c) 2012 by David Van Wagner
+//
+// dave@vanwagner.org
+// http://techwithdave.blogspot.com
+//
+// License: Creative Commons Attribution-ShareAlike 3.0 Unported License
+// http://creativecommons.org/licenses/by-sa/3.0/
+///////////////////////////////////////////////////////////////////////////////
+
+#include <mbed.h>
+
+class SPIDebug
+{
+private:
+    SPI* spi;
+    
+public:
+    SPIDebug(PinName mosi, PinName miso, PinName sclk, const char *name = NULL);
+    virtual ~SPIDebug();
+    void format(int bits, int mode = 0);
+    void frequency(int hz = 10000000);
+    virtual int write(int value);
+    static bool debug; // allow to be changed to control whether there are debug messages
+};
+
+class CSDebug
+{
+private:
+    DigitalOut* cs;
+
+public:
+    CSDebug(PinName pin);
+    ~CSDebug();
+    void write(bool state);
+};