Revision 0:cc32f8c167de, committed 2015-06-18

Comitter:

ohneta

Date:

Thu Jun 18 03:58:23 2015 +0000

Commit message:

1st commit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AD9850/AD9850.cpp	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,135 @@
+//----------------------------------------------------------------
+/**
+ * 中華DDS AD9850のコントロール
+ * 
+ * mbed LPC1768では SPIを操作することで40bitの出力ができるが、
+ * mbed HRM1017等ではSPIの動作が違うためソフトウェアでシリアルデータを出力する
+ * 
+ * 参考資料
+ *   AD9850データシート
+ *     http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf
+ *   mbed LPC1768 SPIでの実装例
+ *     http://developer.mbed.org/users/liamg/code/AD9850-function-generator-SPI-driver/
+ */
+//----------------------------------------------------------------
+
+#include "AD9850.h"
+
+#define AD9850_FREQ_CONST   34.359738368
+/*
+ * AD9850/clock=125MHz 
+ * 2の32乗=4294967296、DDSクロック＝=125MHzを前提とすると...
+ * 1Hz設定時の値 = 4294967296/125000000 = 34.359738368 となる
+ */
+
+//----------------------------------------------------------------
+/**
+ * コンストラクタ
+ *
+ * @param PinName data   データ転送ピン
+ * @param PinName w_clk  クロックピン
+ * @param PinName fu_ud  モジュール選択
+ * @param PinName reset  リセット
+ */
+AD9850::AD9850(PinName data, PinName w_clk, PinName fu_ud, PinName reset)
+    : _outBit(data), _w_clk(w_clk), _fu_ud(fu_ud), _reset(reset)
+{
+    init();
+}
+
+//----------------------------------------------------------------
+/**
+ * デストラクタ
+ */
+AD9850::~AD9850()
+{
+}
+
+//----------------------------------------------------------------
+/**
+ *　初期化
+ */
+void AD9850::init()
+{
+    reset();
+}
+
+//----------------------------------------------------------------
+/**
+ * リセット
+ */
+void AD9850::reset()
+{
+    _reset = 0; wait_ms(5);
+    _reset = 1; wait_ms(5);
+    _reset = 0; wait_ms(5);
+}
+
+//----------------------------------------------------------------
+/**
+ * 周波数設定
+ *
+ * @param int freq  設定する周波数(Hz)
+ *                  AD9850ボードに依存するがクロック125MHzで概ね 1〜40000000(1Hz〜40MHz)程度まで安定して動作する模様
+ * @param int pdwon パワーダウンビット (W34)
+ * @param int phase コントロール/フェーズ等データ (W32〜W39)
+ *
+ * AD9850へ送信する40bit
+ *  W0〜W31:
+ *    freqにAD9850_FREQ_CONSTを乗算した32bit値
+ *  W32, W33:
+ *    コントロールビット。常に0
+ *  W34:
+ *    1でパワーダウン(通常は0)
+ *  W35〜W39:
+ *    位相オフセット調整値 (11.25度単位)
+ */
+void AD9850::setFrequency(int freq, int pdwon, int phase)
+{
+    int freqParam = (int)((double)freq * AD9850_FREQ_CONST);    // 周波数に対応した32bitデータ(W0〜W31)
+
+    _w_clk = 0;
+    _fu_ud = 0; wait_ms(5);
+    _fu_ud = 1; wait_ms(5);
+    _fu_ud = 0;
+
+    for (int i = 0; i < 32; i++) {
+        int bit = ((freqParam >> i) & 0x01);    // LSBから送信
+        _w_clk = 0;
+        _outBit = bit;
+        wait_ms(0.1);
+        _w_clk = 1; wait_ms(2);
+        _w_clk = 0; wait_ms(2);
+    }
+
+    for (int i = 0; i < 8; i++) {
+        int bit = ((phase >> (7 - i)) & 0x01);
+        _w_clk = 0;
+        _outBit = bit;
+        wait_ms(0.1);
+        _w_clk = 1; wait_ms(2);
+        _w_clk = 0; wait_ms(2);
+    }
+
+    _fu_ud = 0; wait_ms(5);
+    _fu_ud = 1; wait_ms(5);
+    _fu_ud = 0;
+}
+
+//----------------------------------------------------------------
+/*
+
+// mbed HRM1017の場合
+AD9850 dds(P0_20, P0_25, P0_24, P0_23);
+
+int main()
+{
+    int frq = 10 * 1000 * 1000; // 10MHz
+    int phase = 0;
+    
+    dds.setFrequency(frq, phase);
+    while(1) {
+        // 
+    }
+}
+*/

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AD9850/AD9850.h	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,29 @@
+//----------------------------------------------------------------
+//----------------------------------------------------------------
+/**
+ * 中華DDS AD9850のコントロール
+ * 
+ */
+//----------------------------------------------------------------
+//----------------------------------------------------------------
+
+#include "mbed.h"
+
+
+class AD9850 {
+
+public:
+    AD9850(PinName data, PinName w_clk, PinName fu_ud, PinName reset);
+    ~AD9850();
+
+    void init();
+    void reset();
+    void setFrequency(int freq, int pdwon = 0, int phase = 0);
+
+private:
+    DigitalOut  _outBit;
+    DigitalOut  _w_clk;
+    DigitalOut  _fu_ud;
+    DigitalOut  _reset;
+};
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BLE_API.lib	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Bluetooth-Low-Energy/code/BLE_API/#c4436674db7b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,191 @@
+#include "mbed.h"
+#include "AD9850.h"
+#include "BLEDevice.h"
+
+#define DEBUG 1
+
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+Ticker ticker;
+Serial		pc(P0_9, P0_11);
+DigitalOut  led1(P0_18);
+DigitalOut  led2(P0_19);
+DigitalIn   btn1(P0_16);
+DigitalIn   btn2(P0_17);
+
+AD9850 dds(P0_20, P0_25, P0_24, P0_23);
+
+//-----------------------------------------------------------------------
+
+uint32_t targetFreq		= 10 * 1000 * 1000; // 10MHz - default
+uint32_t incrementFreq	= 100 * 1000;		// This is a 100KHz frequency increment
+
+//-----------------------------------------------------------------------
+
+BLEDevice  ble;
+
+const static char     DEVICE_NAME[] = "DDS-CTRL 0.2";
+static const uint16_t uuid16_list[] = {0xFFFF};     // Custom UUID, FFFF is reserved for development
+
+// Set Up custom Characteristics
+static uint8_t      deviceValue = 0;
+static uint8_t      outputValue = 0;
+static uint32_t		frequencyValue = 0;
+
+ReadWriteArrayGattCharacteristic<uint8_t, 1>    deviceChar(0xA201,    &deviceValue);
+ReadWriteArrayGattCharacteristic<uint8_t, 1>    outputChar(0xA202,    &outputValue);
+ReadWriteArrayGattCharacteristic<uint32_t, 1> 	frequencyChar(0xA203, &frequencyValue);
+
+// Set up custom service
+GattCharacteristic *characteristics[] = {
+    &deviceChar,
+    &outputChar,
+    &frequencyChar,
+};
+GattService customService(0xA001, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
+
+
+//-----------------------------------------------------------------------
+/**
+ *
+ */
+ void connectionCallback(Gap::Handle_t Handle_t,
+                         Gap::addr_type_t peerAddrType, const Gap::address_t peerAddr,
+                         Gap::addr_type_t ownAddrType,  const Gap::address_t ownAddr,
+                         const Gap::ConnectionParams_t *params)
+{
+    pc.printf("connectionCallback\n");
+}
+
+//--------------------------------
+/*
+ *  Restart advertising when phone app disconnects
+ */ 
+void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
+{
+    pc.printf("disconnectionCallback\n");
+    ble.startAdvertising(); 
+}
+
+//--------------------------------
+/* 
+ *  handle writes to writeCharacteristic
+ */
+void writeCharCallback(const GattCharacteristicWriteCBParams *params)
+{
+    led2 = !led2;
+
+	pc.printf("BLE:onDataWritten\n");
+
+    if (params->charHandle == deviceChar.getValueHandle()) {
+        memcpy(&deviceChar, params->data, params->len);
+        pc.printf("deviceChar\n");
+        pc.printf("deviceChar: deviceValue: %x\n", deviceValue);
+
+    } else
+    if (params->charHandle == outputChar.getValueHandle()) {
+        memcpy(&outputValue, params->data, params->len);
+        pc.printf("outputChar : outputValue: %x\n", outputValue);
+
+    } else
+    if (params->charHandle == frequencyChar.getValueHandle()) {
+        memcpy(&targetFreq, params->data, params->len);
+        pc.printf("frequencyChar\n");
+        pc.printf("targetFreq: %d\n", targetFreq);
+    }
+
+}
+
+//-----------------------------------------------------------------------
+
+void tickerCallback()
+{
+    led1 = !led1;
+}
+
+char guruguru(int cnt)
+{
+	static char gurus[] = {'-', '\\', '|', '/'};
+	return gurus[cnt % 4];
+}
+
+//--------------------------------
+
+int main(void)
+{
+    ticker.attach(&tickerCallback, 0.5);
+
+    pc.baud(115200);
+    pc.printf("\n");
+	pc.printf("------------------------\n");
+	pc.printf("DDS-CTRL start\n");
+	led1 = 0; led2 = 0;;
+
+
+    ble.init();
+    ble.onConnection(connectionCallback);
+    ble.onDisconnection(disconnectionCallback);
+    ble.onDataWritten(writeCharCallback);
+		
+	// setup advertising
+    {
+        // BLE only, no classic BT
+        ble.accumulateAdvertisingPayload(   GapAdvertisingData::BREDR_NOT_SUPPORTED | 
+                                            GapAdvertisingData::LE_GENERAL_DISCOVERABLE );
+        // advertising type
+        ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+        // add name
+        ble.accumulateAdvertisingPayload(   GapAdvertisingData::COMPLETE_LOCAL_NAME, 
+                                            (uint8_t *)DEVICE_NAME, 
+                                            sizeof(DEVICE_NAME) );
+        // UUID's broadcast in advertising packet
+        ble.accumulateAdvertisingPayload(   GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,
+                                            (uint8_t *)uuid16_list,
+                                            sizeof(uuid16_list) );
+        ble.setAdvertisingInterval(100); // interval is 100ms. 
+        // add my service
+        ble.addService(customService);
+
+        // start advertising
+        ble.startAdvertising();
+    }
+	pc.printf("BLE init\n");
+
+
+	// DDS 初期化
+	{
+		dds.init();
+pc.printf("\nFREQ: %d [default]\n", targetFreq);
+	    dds.setFrequency(targetFreq, 0, 0);
+	    dds.setFrequency(targetFreq, 0, 0);
+			// TODO: なぜか最初だけ２回ださないと設定されない... 
+	}
+	pc.printf("DDS init\n");
+
+
+	int loopCounter = 0;
+	int lastFreq = targetFreq;
+    while (true) {
+        ble.waitForEvent();
+
+		loopCounter++;
+		//pc.putc(guruguru(loopCounter));
+		//pc.putc('\r');
+		pc.putc('*');
+		wait_ms(100);
+
+		if (lastFreq != targetFreq) {
+pc.printf("\nFREQ: %d\n", targetFreq);
+        	dds.setFrequency(targetFreq, 0, 0);
+
+			//gInternalStorageBuffer.freq = targetFreq;
+			//nRF51822_internalStorage_write();
+
+			lastFreq = targetFreq;
+		}
+	}
+
+}
+
+//---------------------------------------------------------
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/7cff1c4259d7
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nRF51822.lib	Thu Jun 18 03:58:23 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#d0fc349b9a1b