Revision 0:3d76f0b19b14, committed 2012-04-17

Comitter:

test

Date:

Tue Apr 17 07:40:02 2012 +0000

Commit message:

1.0

Changed in this revision

diff -r 000000000000 -r 3d76f0b19b14 7SegSRDriver.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/7SegSRDriver.cpp	Tue Apr 17 07:40:02 2012 +0000
@@ -0,0 +1,71 @@
+#include "mbed.h"
+#include "7SegSRDriver.h"
+
+/* mbed 7-Segment Display Driver Library (via an 8bit Shift Register)
+ * Copyright (c) 2011 Paul Law
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Display should be hooked up to shift register as follows:
+// Q0 : Decimal Point, Q1-Q7 : Segments a-g
+
+SSegSRDriver::SSegSRDriver(PinName srData, PinName srClock, PinName srLatch, bool disp_type): _srData(srData), _srClock(srClock), _srLatch(srLatch) {
+    _disp_type = disp_type;
+    write_raw(0);
+}
+
+void SSegSRDriver::set_type(bool disp_type) {
+    _disp_type = disp_type;
+}
+
+void SSegSRDriver::clear() {
+    write_raw(0);
+}
+
+void SSegSRDriver::write(unsigned char number) {
+    write(number,0);
+}
+
+void SSegSRDriver::write(unsigned char number, bool dp) {
+    if (number<16) {
+        // Find the definition of the number in chardefs, shift left, set dp (LSB)
+        if(!_disp_type) //if Common Anode
+            write_raw((SSegSRDriver_chardefs[number])<<1 | dp); //small change to fit taobao buy LEDs.
+        else //if common Cathode
+            write_raw((SSegSRDriver_chardefs[number]) | (dp<<0x7)); //small change to fit taobao buy LEDs.
+    }
+}
+
+void SSegSRDriver::write_raw(unsigned char bValue) {
+
+    if (!_disp_type) bValue = ~bValue;  // Reverse value for Common Anode
+
+    if (bValue<=0xFF) {
+        // Push value to shift register and latch
+        _srLatch = 0;
+        for (int i=7;i>=0;i--) {    // Output MSB to LSB
+            _srClock = 0;
+            _srData = (bValue & (1<<i));
+            _srClock = 1;
+        }
+        _srLatch = 1;
+        _srData = 0;
+    }
+}
\ No newline at end of file

diff -r 000000000000 -r 3d76f0b19b14 7SegSRDriver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/7SegSRDriver.h	Tue Apr 17 07:40:02 2012 +0000
@@ -0,0 +1,109 @@
+/* mbed 7-Segment Display Driver Library (via an 8bit Shift Register)
+ * Copyright (c) 2011 Paul Law
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef LIB_SSEGSRDRIVER_H
+#define LIB_SSEGSRDRIVER_H
+
+#include "mbed.h"
+
+#define SSegSRDriver_COMN_ANODE 0
+#define SSegSRDriver_COMN_CATHODE 1
+
+//Char defs: 0123456789AbCdEF
+const unsigned char SSegSRDriver_chardefs[16] = {0x3F, 0x6, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x7, 0x7F, 0x6F, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 };
+
+/** 7-Segment Display Driver class, via a 8-bit shift register (such as the 74HC595)
+ *
+ * Display should be hooked up to shift register as follows:
+ * Q0 : Decimal Point, Q1-Q7 : Segments a-g
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "7SegSRDriver.h"
+ *
+ * SSegSRDriver display(p27,p25,p26, SSegSRDriver_COMN_ANODE);
+ *
+ * int main() {
+ *     while (1) {
+ *         // Show the chars 0-9 then A-F, flashing the decimal point on and off
+ *         for (int i=0; i<16; i++) {
+ *             display.write(i,i%2 == 0);
+ *             wait(1);
+ *         }
+ *     }
+ * }
+ * @endcode
+ */
+class SSegSRDriver {
+
+public:
+
+    /** Create a 7-Segment Display Driver object connected to a 8-bit shift register on the given DigitalOut pins
+     *
+     * @param srData Shift Register Data pin (DigitalOut)
+     * @param srClock Shift Register Clock pin (DigitalOut)
+     * @param srLatch Shift Register Latch pin (DigitalOut)
+     * @param disp_type Display Type: Common Anode/Cathode (SSegSRDriver_COMN_ANODE (0) or SSegSRDriver_COMN_CATHODE (1))
+     */
+    SSegSRDriver(PinName srData, PinName srClock, PinName srLatch, bool disp_type);
+
+    /** Change the type of 7-Segment Display
+     *
+     * @param disp_type Display Type: Common Anode/Cathode (SSegSRDriver_COMN_ANODE (0) or SSegSRDriver_COMN_CATHODE (1))
+     */
+    void set_type(bool disp_type);
+    
+    /** Sets the currently shown digit on the display
+     *
+     * @param number The digit to display (0-15) to show numbers 0-9 and letters A-F
+     */
+    void write(unsigned char number); 
+    
+    /** Sets the currently shown digit on the display along with the decimal place
+     *
+     * @param number The digit to display (0-15) to show numbers 0-9 and letters A-F
+     * @param dp If the decimal place should be lit (0:Off, 1:On)
+     */
+    void write(unsigned char number, bool dp);   
+    
+    /** Sets the segments of the display directly
+     * Segments are lit by binary flags where LSB is the decimal point, then segments a-g up to the MSB
+     * e.g. to light segments e, f and the decimal place = 01100001
+     *
+     * @param bValue The segments to light
+     */
+    void write_raw(unsigned char number);   // Write directly to the display - Q0/Q1-Q7
+    
+    /** Turn all segments of the display off
+     */
+    void clear();   // Clears the display
+    
+private:
+
+    DigitalOut _srData;
+    DigitalOut _srClock;
+    DigitalOut _srLatch;
+    bool _disp_type;
+};
+
+#endif
\ No newline at end of file

diff -r 000000000000 -r 3d76f0b19b14 TextLCD.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Tue Apr 17 07:40:02 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37

diff -r 000000000000 -r 3d76f0b19b14 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Apr 17 07:40:02 2012 +0000
@@ -0,0 +1,157 @@
+#include "mbed.h"
+#include "7SegSRDriver.h"
+#include "TextLCD.h" //driver 1602 lcd screen
+
+#define pin_debug 0
+#if pin_debug
+DigitalOut pin8(P2_7),pin6(P1_24);
+Ticker pinFlip;
+#endif
+
+Timeout CalcRate;
+DigitalOut led1(P2_2);
+DigitalIn signal(P2_9),XFC(P2_8);;
+//InterruptIn flip(P1_21),flip1(P1_23);    in mbed P1_21 is defined to be LED1, connect LCD to 3V3, can't generate interrupt
+//InterruptIn flip(P2_8),flip1(P2_9); //flip XFC flip1 signal
+TextLCD lcd(P0_24, P0_25, P0_26, P0_3, P0_2,P1_0,TextLCD::LCD16x2); // rs, e, d4-d7
+int signalTotal,XFCTotal,sync_Pass,sync_Fail;
+int i,max; //used for dataToArry function
+int printArray[4];
+float dataToarray(float data);
+int sync_delay = 16;// sync delay micro seconds.
+void pinflip();
+//7 segment class definition,Data,Clock,latch
+SSegSRDriver display(P2_1,P0_7,P0_9, SSegSRDriver_COMN_CATHODE);
+
+
+void calcRate() {
+    float rate = 0;
+    int tempsignalTotal,temp_pass,temp_fail;
+    int j =0;
+    int LEDArray[4];
+#if pin_debug
+    pinFlip.detach();
+#endif
+    //put to temp value to ensure these values not change after this.
+    tempsignalTotal =signalTotal;
+    temp_pass = sync_Pass;
+    temp_fail = sync_Fail;
+    if(sync_Pass>0)
+        rate = (float)temp_pass/(float)(temp_pass+temp_fail)*100;
+    else
+        rate = 0;
+    i=max=0;
+       lcd.cls();
+    if (rate>50) {
+        for (j= 0; j<=3; j++) //clear printArray buffer to 0
+            printArray[j] = 0;
+        dataToarray(rate);
+        //lcd.printf("XFC: %6dHz\n",tempXFCTotal*2); //print XFC: 023000Hz,remeber I'm using one counter to trigger the count
+        lcd.printf("Working\n"); //Don't show XFC message.
+        lcd.printf("Sig: %6dHz\n",tempsignalTotal);//print Sig: 023000Hz
+        j = max; //max is from dataToarray, global variable to index the lenth of the array
+        //printf("The array to print is:");
+        for (int a=0; a<=4; a++)
+            display.clear();
+        
+        while (j<3) {
+            //printf("%d",0);
+            j++;
+            for (int tempIndex = j; tempIndex>=1; tempIndex--)
+                printArray[tempIndex]=printArray[tempIndex-1];
+            printArray[0] = 0;
+        }
+        for (j=0; (j<=3); j++) {
+            //printf("%d ",printArray[j]);
+            LEDArray[j]=printArray[j];
+        }
+        if (max>3) { //which means 100%
+            display.write(LEDArray[3],false);
+            display.write(LEDArray[2],true);
+            display.write(LEDArray[1],false);
+            display.write(LEDArray[0],false);
+        } else {
+            display.write(LEDArray[3],false);
+            display.write(LEDArray[2],false);
+            display.write(LEDArray[1],true);
+            display.write(LEDArray[0],false);
+        }
+    }
+    else{
+      lcd.printf("Warning!\n"); //show warning message message.
+      lcd.printf("No Sync signal\n");
+    }
+     signalTotal = sync_Pass=sync_Fail =0;
+    CalcRate.attach(&calcRate,1.0);
+    led1 = !led1;
+    
+#if pin_debug
+    pinFlip.attach_us(&pinflip,10); //the best speed is 100k/s
+#endif
+}
+#if pin_debug
+void pinflip() {
+    pin8 = !pin8;
+}
+#endif
+float dataToarray(float data) {
+    if (data>=0.1) {
+        i++; //counter increase
+        data = dataToarray(data/10)*10;
+    }
+
+    if (max<=i)
+        //make sure max is the biggest number pointer
+        max = i;
+    float tempData;
+    tempData = data*100;
+    printArray[max-i] = (int)tempData;
+    data = (tempData-printArray[max-i])/100;
+    i--;
+    return (data);
+
+
+}
+int main() {
+    int tempSignal,tempXFC;
+    //lcd.printf("XFC: 0Hz\n"); //initialize
+    lcd.printf("Working\n"); //initialize
+    lcd.printf("Sig: 0Hz\n");//The Sig: 0Hz
+    //clear the led first
+     for (int a=0; a<=4; a++)
+            display.clear();
+    signalTotal = sync_Pass=sync_Fail =0;
+    tempSignal = tempXFC = 0;
+    CalcRate.attach(&calcRate,1.0);
+#if pin_debug
+    pin8 = pin6 =0;
+    pinFlip.attach_us(&pinflip,10); //the best speed is 100k/s
+#endif
+   
+    while (1) {
+        if(tempSignal!=signal)
+        {
+            tempSignal = signal;
+            signalTotal++;
+        }
+        if(tempXFC!=XFC)
+        {
+            tempXFC = XFC;
+            wait_us(sync_delay);
+            if(tempSignal!=signal) //synchronized 
+            {
+                tempSignal = signal;
+                signalTotal++;  
+                sync_Pass++;
+            }
+            else //didn't find sync signal
+                sync_Fail++;
+        }
+        wait_us(1);
+        
+        
+
+
+    }
+
+}

diff -r 000000000000 -r 3d76f0b19b14 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Apr 17 07:40:02 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/4c0c40fd0593