SPIDebug.cpp

00001 ///////////////////////////////////////////////////////////////////////////////
00002 // SPIDebug.h
00003 //
00004 // COPYRIGHT (c) 2012 by David Van Wagner
00005 //
00006 // dave@vanwagner.org
00007 // http://techwithdave.blogspot.com
00008 //
00009 // License: Creative Commons Attribution-ShareAlike 3.0 Unported License
00010 // http://creativecommons.org/licenses/by-sa/3.0/
00011 ///////////////////////////////////////////////////////////////////////////////
00012 
00013 #include "SPIDebug.h"
00014 
00015 bool SPIDebug::debug = true; // default on
00016 
00017 SPIDebug::SPIDebug(PinName mosi, PinName miso, PinName sclk, const char *name)
00018 {
00019     if (debug)
00020         printf("SPI(%08x, %08x, %08x, %s)\n", mosi, miso, sclk, name);
00021     spi = new SPI(mosi, miso, sclk, name);
00022 }
00023 
00024 SPIDebug::~SPIDebug()
00025 {
00026     delete spi;
00027 }
00028 
00029 void SPIDebug::format(int bits, int mode)
00030 {
00031     if (debug)
00032         printf("SPI.format(%d, %d)\n", bits, mode);
00033     spi->format(bits, mode);
00034 }
00035 
00036 void SPIDebug::frequency(int hz)
00037 {
00038     if (debug)
00039         printf("SPI.frequency(%d)\n", hz);
00040     spi->frequency(hz);
00041 }
00042 
00043 int SPIDebug::write(int value)
00044 {
00045     int result = spi->write(value);
00046     if (debug)
00047         printf(">%02x <%02x ", value, result);
00048     return result;
00049 }
00050 
00051 CSDebug::CSDebug(PinName pin)
00052 {
00053     cs = new DigitalOut(pin);
00054 }
00055 
00056 CSDebug::~CSDebug()
00057 {
00058     delete cs;
00059 }
00060 
00061 void CSDebug::write(bool state)
00062 {
00063     cs->write(state);
00064     if (SPIDebug::debug)
00065     {
00066         if (state == false)
00067             printf("SPI CS\n");
00068         else
00069             printf("\n");
00070     }
00071 }