初始化提交

arduino-cli/libraries/RF24/utility/ATXMegaD3/spi.cpp

@@ -0,0 +1,64 @@
+/*
+ * spi.cpp
+ *
+ * Created: 20/1/2016 10:10:39
+ *  Author: akatran
+ */
+
+#include <avr/io.h>
+#include "gpio_helper.h"
+#include "spi.h"
+
+using namespace std;
+
+void SPI::begin(uint8_t _port)
+{
+    if (_port == XMEGA_SPI_PORT_C) // Select SPI on PORTC
+    {
+        device = &SPIC;
+        port = &PORTC;
+    } else if (_port == XMEGA_SPI_PORT_D) // Select SPI on PORTD
+    {
+        device = &SPID;
+        port = &PORTD;
+    }
+
+    init();
+}
+
+uint8_t SPI::transfer(uint8_t tx_)
+{
+    register8_t data;
+    device->DATA = tx_;
+    while (!(device->STATUS & (1 << 7))) {
+    }
+    data = device->DATA;
+    //PORTF.OUT = data;
+    return data;
+}
+
+void SPI::init()
+{
+    port->DIRCLR = SPI_MISO_bm;
+    port->DIRSET = SPI_MOSI_bm | SPI_SCK_bm | SPI_SS_bm;
+
+    //device->CTRL = 0;
+    device->CTRL = SPI_ENABLE_bm | SPI_MASTER_bm | SPI_MODE_0_gc | SPI_PRESCALER_DIV4_gc;
+    device->INTCTRL = 0; //Disable interrupts
+
+}
+
+SPI::SPI()
+{
+
+}
+
+SPI::~SPI()
+{
+
+}
+
+void operator delete(void* p) // or delete(void *, std::size_t)
+{
+
+}