added .c/.h files

ked/device_drivers/ad9833/ad9833.c

@@ -0,0 +1,105 @@
+typedef enum {
+    _bit_FSELECT = 0x00,
+    _bit_D1 = 0x00,
+    _bit_MODE = 0x0002,
+    _bit_DIV2 = 0x0008,
+    _bit_OPBITEN = 0x0020,
+    _bit_SLEEP12 = 0x0040,
+    _bit_SLEEP1 = 0x0080,
+    _bit_RESET = 0x0100,
+    _bit_PSELECT = 0x0400,
+    _bit_FSELECT = 0x0800,
+    _bit_HLB = 0x1000,
+    _bit_B28 = 0x2000
+}bit_t;
+
+void _writeControlRegister(ad9833_t *device, uint16_t entry)
+{
+    // mask entry to prevent writing to reserved bits
+    spiWrite16bit(device->spiCH, (entry & 0x3DEA));
+}
+
+void ad9833_init(
+    ad9833_t *device,
+    ad9833_sleepMode_t sleepMode,
+    uint16_t f0,
+    uint16_t f1,
+    uint16_t p0,
+    uint16_t p1);
+{
+    // perform init sequence according to Figure 27.
+    spiWrite16bit(device->spiCH, _bit_RESET);
+    spiWrite16bit(device->spiCH, 0);
+    
+
+    // set device directly in full powerdown mode, sinosoidal output 
+    device->ctrlReg = _bit_SLEEP1 | _bit_SLEEP12;
+    spiWrite16bit(device->ctrlReg);
+}
+
+void ad9833_setRefFrequency(
+    ad9833_t *device,
+    float fref);
+{
+    
+}
+
+void ad9833_reset(
+    ad9833_t *device);
+{
+
+}
+
+void ad9833_setSleepMode(
+    ad9833_t *device,
+    ad9833_sleepMode_t sleepMode);
+{
+    
+}
+
+void ad9833_setOutputSinosoidal(
+    ad9833_t *device);
+{
+    
+}
+
+void ad9833_setOutputTrangle(
+    ad9833_t *device);
+{
+    
+}
+
+void ad9833_setOutputMSBofDACData(
+    ad9833_t *device);
+
+{
+    
+}
+
+void ad9833_setFrequency0(
+    ad9833_t *device,
+    uint16_t f0);
+{
+    
+}
+
+void ad9833_setFrequency1(
+    ad9833_t *device,
+    uint16_t f1)
+{
+
+}
+
+void ad9833_setPhase0(
+    ad9833_t *device,
+    uint32_t p0)
+{
+
+}
+
+void ad9833_setPhase1(
+    ad9833_t *device,
+    uint32_t p1)
+{
+    
+}

ked/device_drivers/ad9833/ad9833.h

@@ -0,0 +1,146 @@
+#ifndef _AD9833_H_
+#define _AD9833_H_
+
+#include <stdint.h>
+#include "spi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    spi_ch_t *spiCH;
+    uint16_t ctrlReg;
+} ad9833_t;
+
+typedef enum{
+    INACTIVE = 0x0000,
+    DAC_POWERDOWN = 0x0040,
+    INTERNAL_CLK_DISSABLE = 0x0080,
+    DAC_AND_INT_CLK_DISSABLE = 0x00C0
+}ad9833_sleepMode_t;
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param sleepMode 
+ */
+void ad9833_init(
+    ad9833_t *device,
+    ad9833_sleepMode_t sleepMode);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param fref 
+ */
+void ad9833_setRefFrequency(
+    ad9833_t *device,
+    float fref);
+
+/**
+ * @brief Reset Device
+ * 
+ * The reset function resets appropriate internal registers to 0 to provide an
+ * analog output of midscale. Reset does not reset the phase, frequency, or
+ * control registers. When the AD9833 is powered up, the part should be reset.
+ * To reset the AD9833, set the reset bit to 1. To take the part out of reset,
+ * set the bit to 0. A signal appears at the DAC to output eight MCLK cycles
+ * after reset is set to 0.
+ * 
+ * the latter was quoted from datasheet ad9833 Rev.D from Analog Devices
+ * @param device 
+ */
+void ad9833_reset(
+    ad9833_t *device);
+
+/**
+ * @brief Set different different sections in powerdown mode
+ * 
+ * Different Sections can be put into powerdown to save power.
+ * 
+ * The following modes can be set:
+ * 
+ *  No power-down                   = INACTIVE
+ *  DAC powered down                = DAC_POWERDOWN
+ *  Internal clock disabled         = INTERNAL_CLK_DISSABLE
+ *  Both the DAC powered down       = DAC_AND_INT_CLK_DISSABLE
+ *  and the internal clock disabled
+ * @param device 
+ * @param sleepMode 
+ */
+void ad9833_setSleepMode(
+    ad9833_t *device,
+    ad9833_sleepMode_t sleepMode);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ */
+void ad9833_setOutputSinosoidal(
+    ad9833_t *device);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ */
+void ad9833_setOutputTrangle(
+    ad9833_t *device);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ */
+void ad9833_setOutputMSBofDACData(
+    ad9833_t *device);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param f0 
+ */
+void ad9833_setFrequency0(
+    ad9833_t *device,
+    uint16_t f0);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param f1 
+ */
+void ad9833_setFrequency1(
+    ad9833_t *device,
+    uint16_t f1);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param p0 
+ */
+void ad9833_setPhase0(
+    ad9833_t *device,
+    uint32_t p0);
+
+/**
+ * @brief 
+ * 
+ * @param device 
+ * @param p1 
+ */
+void ad9833_setPhase1(
+    ad9833_t *device,
+    uint32_t p1);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _AD9833_H_