Kenji Arai / EPD_4R2

4.2inch e-Paper HAT (C) made by WAVESHARE

Dependents:   ePD_4R2inch_test_program_on_nRF52

epdif.cpp@1:b1aa1d6a96bc, 2019-08-28 (annotated)

Committer:
kenjiArai
Date:
Wed Aug 28 23:35:01 2019 +0000
Revision:
1:b1aa1d6a96bc
Parent:
0:825022100d0f 
for 4.2inch e-Paper

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:825022100d0f 1 /**
kenjiArai 0:825022100d0f 2 * @filename : epdif.cpp
kenjiArai 0:825022100d0f 3 * @brief : Implements EPD interface functions
kenjiArai 0:825022100d0f 4 * Users have to implement all the functions in epdif.cpp
kenjiArai 0:825022100d0f 5 * @author : Yehui from Waveshare
kenjiArai 0:825022100d0f 6 *
kenjiArai 0:825022100d0f 7 * Copyright (C) Waveshare August 10 2017
kenjiArai 0:825022100d0f 8 *
kenjiArai 0:825022100d0f 9 * Permission is hereby granted, free of charge, to any person obtaining a copy
kenjiArai 0:825022100d0f 10 * of this software and associated documnetation files (the "Software"), to deal
kenjiArai 0:825022100d0f 11 * in the Software without restriction, including without limitation the rights
kenjiArai 0:825022100d0f 12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
kenjiArai 0:825022100d0f 13 * copies of the Software, and to permit persons to whom the Software is
kenjiArai 0:825022100d0f 14 * furished to do so, subject to the following conditions:
kenjiArai 0:825022100d0f 15 *
kenjiArai 0:825022100d0f 16 * The above copyright notice and this permission notice shall be included in
kenjiArai 0:825022100d0f 17 * all copies or substantial portions of the Software.
kenjiArai 0:825022100d0f 18 *
kenjiArai 0:825022100d0f 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
kenjiArai 0:825022100d0f 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
kenjiArai 0:825022100d0f 21 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
kenjiArai 0:825022100d0f 22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
kenjiArai 0:825022100d0f 23 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
kenjiArai 0:825022100d0f 24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
kenjiArai 0:825022100d0f 25 * THE SOFTWARE.
kenjiArai 0:825022100d0f 26 */
kenjiArai 0:825022100d0f 27
kenjiArai 0:825022100d0f 28 /*
kenjiArai 0:825022100d0f 29 * Modified by Kenji Arai / JH1PJL
kenjiArai 0:825022100d0f 30 *
kenjiArai 0:825022100d0f 31 * http://www.page.sannet.ne.jp/kenjia/index.html
kenjiArai 0:825022100d0f 32 * http://mbed.org/users/kenjiArai/
kenjiArai 0:825022100d0f 33 * Created: April 27th, 2019
kenjiArai 1:b1aa1d6a96bc 34 * Revised: May 26th, 2019
kenjiArai 0:825022100d0f 35 *
kenjiArai 0:825022100d0f 36 * Refrence software
kenjiArai 0:825022100d0f 37 * https://github.com/waveshare/e-Paper
kenjiArai 0:825022100d0f 38 * https://os.mbed.com/users/imachooon/code/epd1in54/
kenjiArai 0:825022100d0f 39 *
kenjiArai 0:825022100d0f 40 * Technical documents
kenjiArai 0:825022100d0f 41 * https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_(B)
kenjiArai 0:825022100d0f 42 *
kenjiArai 0:825022100d0f 43 * Product
kenjiArai 0:825022100d0f 44 * http://akizukidenshi.com/catalog/g/gP-13757/
kenjiArai 0:825022100d0f 45 * https://www.waveshare.com/2.13inch-e-paper-hat-b.htm
kenjiArai 0:825022100d0f 46 *
kenjiArai 0:825022100d0f 47 */
kenjiArai 0:825022100d0f 48
kenjiArai 0:825022100d0f 49 #include "epdif.h"
kenjiArai 0:825022100d0f 50
kenjiArai 0:825022100d0f 51 EpdIf::EpdIf()
kenjiArai 0:825022100d0f 52 {
kenjiArai 0:825022100d0f 53 ;
kenjiArai 0:825022100d0f 54 }
kenjiArai 0:825022100d0f 55
kenjiArai 0:825022100d0f 56 EpdIf::EpdIf(PinName mosi,
kenjiArai 0:825022100d0f 57 PinName miso,
kenjiArai 0:825022100d0f 58 PinName sclk,
kenjiArai 0:825022100d0f 59 PinName cs,
kenjiArai 0:825022100d0f 60 PinName dc,
kenjiArai 0:825022100d0f 61 PinName rst,
kenjiArai 0:825022100d0f 62 PinName busy,
kenjiArai 0:825022100d0f 63 PinName pwr)
kenjiArai 0:825022100d0f 64 {
kenjiArai 0:825022100d0f 65 m_spi = new SPI(mosi, miso, sclk);
kenjiArai 0:825022100d0f 66 m_cs = new DigitalOut(cs);
kenjiArai 0:825022100d0f 67 m_dc = new DigitalOut(dc);
kenjiArai 0:825022100d0f 68 m_rst = new DigitalOut(rst);
kenjiArai 0:825022100d0f 69 m_busy = new DigitalIn(busy);
kenjiArai 0:825022100d0f 70 m_pwr = new DigitalOut(pwr);
kenjiArai 1:b1aa1d6a96bc 71 p_mosi = mosi;
kenjiArai 1:b1aa1d6a96bc 72 p_sclk = sclk;
kenjiArai 0:825022100d0f 73 }
kenjiArai 0:825022100d0f 74
kenjiArai 0:825022100d0f 75 void EpdIf::DigitalWrite(DigitalOut* pin, int value)
kenjiArai 0:825022100d0f 76 {
kenjiArai 0:825022100d0f 77 *pin = value;
kenjiArai 0:825022100d0f 78 }
kenjiArai 0:825022100d0f 79
kenjiArai 0:825022100d0f 80 int EpdIf::DigitalRead(DigitalIn* pin)
kenjiArai 0:825022100d0f 81 {
kenjiArai 0:825022100d0f 82 int ret = *pin;
kenjiArai 0:825022100d0f 83 return ret;
kenjiArai 0:825022100d0f 84 }
kenjiArai 0:825022100d0f 85
kenjiArai 0:825022100d0f 86 void EpdIf::DelayMs(unsigned int delaytime)
kenjiArai 0:825022100d0f 87 {
kenjiArai 0:825022100d0f 88 ThisThread::sleep_for(delaytime);
kenjiArai 0:825022100d0f 89 }
kenjiArai 0:825022100d0f 90
kenjiArai 0:825022100d0f 91 void EpdIf::SpiTransfer(unsigned char data)
kenjiArai 0:825022100d0f 92 {
kenjiArai 0:825022100d0f 93 *m_cs = 0;
kenjiArai 0:825022100d0f 94 m_spi->write(data);
kenjiArai 0:825022100d0f 95 *m_cs = 1;
kenjiArai 0:825022100d0f 96 }
kenjiArai 0:825022100d0f 97
kenjiArai 0:825022100d0f 98 int EpdIf::IfInit(void)
kenjiArai 0:825022100d0f 99 {
kenjiArai 0:825022100d0f 100 m_spi->format(8,0);
kenjiArai 0:825022100d0f 101 m_spi->frequency(2000000);
kenjiArai 0:825022100d0f 102 return 0;
kenjiArai 0:825022100d0f 103 }
kenjiArai 1:b1aa1d6a96bc 104
kenjiArai 1:b1aa1d6a96bc 105 void EpdIf::all_off(void)
kenjiArai 1:b1aa1d6a96bc 106 {
kenjiArai 1:b1aa1d6a96bc 107 m_mosi = new DigitalOut(p_mosi);
kenjiArai 1:b1aa1d6a96bc 108 m_sclk = new DigitalOut(p_sclk);
kenjiArai 1:b1aa1d6a96bc 109 *m_mosi = 0;
kenjiArai 1:b1aa1d6a96bc 110 *m_sclk = 0;
kenjiArai 1:b1aa1d6a96bc 111 *m_cs = 0;
kenjiArai 1:b1aa1d6a96bc 112 *m_dc = 0;
kenjiArai 1:b1aa1d6a96bc 113 *m_rst = 0;
kenjiArai 1:b1aa1d6a96bc 114 *m_pwr = 0;
kenjiArai 1:b1aa1d6a96bc 115 }