Add changes from #30

Author: oclyke

cores/arduino/ard_sup/iomaster/ap3_iomaster.cpp

@@ -51,6 +51,8 @@ ap3_err_t IOMaster::initialize(am_hal_iom_config_t config){
     if (retVal32 != AM_HAL_STATUS_SUCCESS){ return AP3_ERR; }
 
     // Configure the IOM pins. (Must be done by the inherited classes [this is just a reminder])
+
+    return AP3_OK;
 }
 
 ap3_err_t IOMaster::deinitialize( void ){

libraries/SPI/src/SPI.cpp

@@ -214,14 +214,11 @@ void SPIClass::setDataMode(uint8_t mode)
   initialize();
 }
 
-// void SPIClass::setClockDivider(uint8_t div)
-// {
-//   // if (div < SPI_MIN_CLOCK_DIVIDER) {
-//   //   _p_sercom->setBaudrateSPI(SPI_MIN_CLOCK_DIVIDER);
-//   // } else {
-//   //   _p_sercom->setBaudrateSPI(div);
-//   // }
-// }
+void SPIClass::setClockDivider(uint8_t div)
+{
+  _config.ui32ClockFreq = F_CPU / div;
+  initialize();
+}
 
 byte SPIClass::transfer(uint8_t data)
 {

libraries/SPI/src/SPI.h

@@ -104,7 +104,7 @@ class SPIClass : public IOMaster {
 
   void setBitOrder(BitOrder order);
   void setDataMode(uint8_t uc_mode);
-  // void setClockDivider(uint8_t uc_div);
+  void setClockDivider(uint8_t uc_div);
 
 private:
   void config(SPISettings settings);