Takashi Matsuoka / MjLibrary

MATSUJIRUSHI Library.

MjSingleDigitDisplayTZ250A.cpp@0:edeb3c119e51, 2016-02-24 (annotated)

Committer:
matsujirushi
Date:
Wed Feb 24 13:24:28 2016 +0000
Revision:
0:edeb3c119e51
Add MjSingleDigitDisplay and MjSingleDigitDisplayTZ250A.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
matsujirushi 0:edeb3c119e51 1 /* Copyright (c) 2016 Takashi Matsuoka, MIT License
matsujirushi 0:edeb3c119e51 2 *
matsujirushi 0:edeb3c119e51 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
matsujirushi 0:edeb3c119e51 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
matsujirushi 0:edeb3c119e51 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
matsujirushi 0:edeb3c119e51 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
matsujirushi 0:edeb3c119e51 7 * furnished to do so, subject to the following conditions:
matsujirushi 0:edeb3c119e51 8 *
matsujirushi 0:edeb3c119e51 9 * The above copyright notice and this permission notice shall be included in all copies or
matsujirushi 0:edeb3c119e51 10 * substantial portions of the Software.
matsujirushi 0:edeb3c119e51 11 *
matsujirushi 0:edeb3c119e51 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
matsujirushi 0:edeb3c119e51 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
matsujirushi 0:edeb3c119e51 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
matsujirushi 0:edeb3c119e51 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
matsujirushi 0:edeb3c119e51 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
matsujirushi 0:edeb3c119e51 17 */
matsujirushi 0:edeb3c119e51 18
matsujirushi 0:edeb3c119e51 19 #include "MjSingleDigitDisplayTZ250A.h"
matsujirushi 0:edeb3c119e51 20
matsujirushi 0:edeb3c119e51 21 MjSingleDigitDisplayTZ250A::MjSingleDigitDisplayTZ250A(BusOut* data, DigitalOut* reset, DigitalOut* strobe)
matsujirushi 0:edeb3c119e51 22 : MjSingleDigitDisplay(), _Data(data), _Reset(reset), _Strobe(strobe)
matsujirushi 0:edeb3c119e51 23 {
matsujirushi 0:edeb3c119e51 24 _Data->write(0);
matsujirushi 0:edeb3c119e51 25 _Reset->write(0);
matsujirushi 0:edeb3c119e51 26 _Strobe->write(0);
matsujirushi 0:edeb3c119e51 27 }
matsujirushi 0:edeb3c119e51 28
matsujirushi 0:edeb3c119e51 29 void MjSingleDigitDisplayTZ250A::reset()
matsujirushi 0:edeb3c119e51 30 {
matsujirushi 0:edeb3c119e51 31 _Reset->write(1);
matsujirushi 0:edeb3c119e51 32 wait_ms(10);
matsujirushi 0:edeb3c119e51 33 _Reset->write(0);
matsujirushi 0:edeb3c119e51 34 wait_ms(600);
matsujirushi 0:edeb3c119e51 35 }
matsujirushi 0:edeb3c119e51 36
matsujirushi 0:edeb3c119e51 37 void MjSingleDigitDisplayTZ250A::writeHalf(uint8_t value)
matsujirushi 0:edeb3c119e51 38 {
matsujirushi 0:edeb3c119e51 39 _Data->write(value);
matsujirushi 0:edeb3c119e51 40
matsujirushi 0:edeb3c119e51 41 _Strobe->write(1);
matsujirushi 0:edeb3c119e51 42 wait_ms(14); // Tdly + Tbw
matsujirushi 0:edeb3c119e51 43
matsujirushi 0:edeb3c119e51 44 _Strobe->write(0);
matsujirushi 0:edeb3c119e51 45 wait_ms(1); // Tsl
matsujirushi 0:edeb3c119e51 46 }
matsujirushi 0:edeb3c119e51 47
matsujirushi 0:edeb3c119e51 48 void MjSingleDigitDisplayTZ250A::write(uint8_t value)
matsujirushi 0:edeb3c119e51 49 {
matsujirushi 0:edeb3c119e51 50 if (value < 36)
matsujirushi 0:edeb3c119e51 51 {
matsujirushi 0:edeb3c119e51 52 value = (value << 1 & 0x70 | 0x80) | (value & 0x07);
matsujirushi 0:edeb3c119e51 53 }
matsujirushi 0:edeb3c119e51 54 else if (value == 255)
matsujirushi 0:edeb3c119e51 55 {
matsujirushi 0:edeb3c119e51 56 value = 0xc4; // Blank.
matsujirushi 0:edeb3c119e51 57 }
matsujirushi 0:edeb3c119e51 58
matsujirushi 0:edeb3c119e51 59 writeHalf(value & 0x0f);
matsujirushi 0:edeb3c119e51 60 writeHalf(value >> 4);
matsujirushi 0:edeb3c119e51 61 }