test test / Mbed 2 deprecated calcRate

to test synchronize signals by a 22k signal.

7SegSRDriver.h@0:3d76f0b19b14, 2012-04-17 (annotated)

Committer:
test
Date:
Tue Apr 17 07:40:02 2012 +0000
Revision:
0:3d76f0b19b14
1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
test 0:3d76f0b19b14 1 /* mbed 7-Segment Display Driver Library (via an 8bit Shift Register)
test 0:3d76f0b19b14 2 * Copyright (c) 2011 Paul Law
test 0:3d76f0b19b14 3 *
test 0:3d76f0b19b14 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
test 0:3d76f0b19b14 5 * of this software and associated documentation files (the "Software"), to deal
test 0:3d76f0b19b14 6 * in the Software without restriction, including without limitation the rights
test 0:3d76f0b19b14 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
test 0:3d76f0b19b14 8 * copies of the Software, and to permit persons to whom the Software is
test 0:3d76f0b19b14 9 * furnished to do so, subject to the following conditions:
test 0:3d76f0b19b14 10 *
test 0:3d76f0b19b14 11 * The above copyright notice and this permission notice shall be included in
test 0:3d76f0b19b14 12 * all copies or substantial portions of the Software.
test 0:3d76f0b19b14 13 *
test 0:3d76f0b19b14 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
test 0:3d76f0b19b14 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
test 0:3d76f0b19b14 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
test 0:3d76f0b19b14 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
test 0:3d76f0b19b14 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
test 0:3d76f0b19b14 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
test 0:3d76f0b19b14 20 * THE SOFTWARE.
test 0:3d76f0b19b14 21 */
test 0:3d76f0b19b14 22
test 0:3d76f0b19b14 23 #ifndef LIB_SSEGSRDRIVER_H
test 0:3d76f0b19b14 24 #define LIB_SSEGSRDRIVER_H
test 0:3d76f0b19b14 25
test 0:3d76f0b19b14 26 #include "mbed.h"
test 0:3d76f0b19b14 27
test 0:3d76f0b19b14 28 #define SSegSRDriver_COMN_ANODE 0
test 0:3d76f0b19b14 29 #define SSegSRDriver_COMN_CATHODE 1
test 0:3d76f0b19b14 30
test 0:3d76f0b19b14 31 //Char defs: 0123456789AbCdEF
test 0:3d76f0b19b14 32 const unsigned char SSegSRDriver_chardefs[16] = {0x3F, 0x6, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x7, 0x7F, 0x6F, 0x77, 0x7C, 0x39, 0x5E, 0x79, 0x71 };
test 0:3d76f0b19b14 33
test 0:3d76f0b19b14 34 /** 7-Segment Display Driver class, via a 8-bit shift register (such as the 74HC595)
test 0:3d76f0b19b14 35 *
test 0:3d76f0b19b14 36 * Display should be hooked up to shift register as follows:
test 0:3d76f0b19b14 37 * Q0 : Decimal Point, Q1-Q7 : Segments a-g
test 0:3d76f0b19b14 38 *
test 0:3d76f0b19b14 39 * Example:
test 0:3d76f0b19b14 40 * @code
test 0:3d76f0b19b14 41 * #include "mbed.h"
test 0:3d76f0b19b14 42 * #include "7SegSRDriver.h"
test 0:3d76f0b19b14 43 *
test 0:3d76f0b19b14 44 * SSegSRDriver display(p27,p25,p26, SSegSRDriver_COMN_ANODE);
test 0:3d76f0b19b14 45 *
test 0:3d76f0b19b14 46 * int main() {
test 0:3d76f0b19b14 47 * while (1) {
test 0:3d76f0b19b14 48 * // Show the chars 0-9 then A-F, flashing the decimal point on and off
test 0:3d76f0b19b14 49 * for (int i=0; i<16; i++) {
test 0:3d76f0b19b14 50 * display.write(i,i%2 == 0);
test 0:3d76f0b19b14 51 * wait(1);
test 0:3d76f0b19b14 52 * }
test 0:3d76f0b19b14 53 * }
test 0:3d76f0b19b14 54 * }
test 0:3d76f0b19b14 55 * @endcode
test 0:3d76f0b19b14 56 */
test 0:3d76f0b19b14 57 class SSegSRDriver {
test 0:3d76f0b19b14 58
test 0:3d76f0b19b14 59 public:
test 0:3d76f0b19b14 60
test 0:3d76f0b19b14 61 /** Create a 7-Segment Display Driver object connected to a 8-bit shift register on the given DigitalOut pins
test 0:3d76f0b19b14 62 *
test 0:3d76f0b19b14 63 * @param srData Shift Register Data pin (DigitalOut)
test 0:3d76f0b19b14 64 * @param srClock Shift Register Clock pin (DigitalOut)
test 0:3d76f0b19b14 65 * @param srLatch Shift Register Latch pin (DigitalOut)
test 0:3d76f0b19b14 66 * @param disp_type Display Type: Common Anode/Cathode (SSegSRDriver_COMN_ANODE (0) or SSegSRDriver_COMN_CATHODE (1))
test 0:3d76f0b19b14 67 */
test 0:3d76f0b19b14 68 SSegSRDriver(PinName srData, PinName srClock, PinName srLatch, bool disp_type);
test 0:3d76f0b19b14 69
test 0:3d76f0b19b14 70 /** Change the type of 7-Segment Display
test 0:3d76f0b19b14 71 *
test 0:3d76f0b19b14 72 * @param disp_type Display Type: Common Anode/Cathode (SSegSRDriver_COMN_ANODE (0) or SSegSRDriver_COMN_CATHODE (1))
test 0:3d76f0b19b14 73 */
test 0:3d76f0b19b14 74 void set_type(bool disp_type);
test 0:3d76f0b19b14 75
test 0:3d76f0b19b14 76 /** Sets the currently shown digit on the display
test 0:3d76f0b19b14 77 *
test 0:3d76f0b19b14 78 * @param number The digit to display (0-15) to show numbers 0-9 and letters A-F
test 0:3d76f0b19b14 79 */
test 0:3d76f0b19b14 80 void write(unsigned char number);
test 0:3d76f0b19b14 81
test 0:3d76f0b19b14 82 /** Sets the currently shown digit on the display along with the decimal place
test 0:3d76f0b19b14 83 *
test 0:3d76f0b19b14 84 * @param number The digit to display (0-15) to show numbers 0-9 and letters A-F
test 0:3d76f0b19b14 85 * @param dp If the decimal place should be lit (0:Off, 1:On)
test 0:3d76f0b19b14 86 */
test 0:3d76f0b19b14 87 void write(unsigned char number, bool dp);
test 0:3d76f0b19b14 88
test 0:3d76f0b19b14 89 /** Sets the segments of the display directly
test 0:3d76f0b19b14 90 * Segments are lit by binary flags where LSB is the decimal point, then segments a-g up to the MSB
test 0:3d76f0b19b14 91 * e.g. to light segments e, f and the decimal place = 01100001
test 0:3d76f0b19b14 92 *
test 0:3d76f0b19b14 93 * @param bValue The segments to light
test 0:3d76f0b19b14 94 */
test 0:3d76f0b19b14 95 void write_raw(unsigned char number); // Write directly to the display - Q0/Q1-Q7
test 0:3d76f0b19b14 96
test 0:3d76f0b19b14 97 /** Turn all segments of the display off
test 0:3d76f0b19b14 98 */
test 0:3d76f0b19b14 99 void clear(); // Clears the display
test 0:3d76f0b19b14 100
test 0:3d76f0b19b14 101 private:
test 0:3d76f0b19b14 102
test 0:3d76f0b19b14 103 DigitalOut _srData;
test 0:3d76f0b19b14 104 DigitalOut _srClock;
test 0:3d76f0b19b14 105 DigitalOut _srLatch;
test 0:3d76f0b19b14 106 bool _disp_type;
test 0:3d76f0b19b14 107 };
test 0:3d76f0b19b14 108
test 0:3d76f0b19b14 109 #endif