Fork of LCD-Window which works with Enhanced TextLCD from Wim
Fork of LcdWindow by
sed1335text.cpp@7:b472970bd8f6, 2011-01-04 (annotated)
- Committer:
- hlipka
- Date:
- Tue Jan 04 22:58:59 2011 +0000
- Revision:
- 7:b472970bd8f6
- Parent:
- 6:7ba288afed38
- Child:
- 8:ba176eea3e40
removed debug messages, changed initialization for SED1335 to work for all display sizes (single panel only)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hlipka | 6:7ba288afed38 | 1 | /* |
hlipka | 6:7ba288afed38 | 2 | * mbed LCDWindow library |
hlipka | 6:7ba288afed38 | 3 | * Copyright (c) 2010 Hendrik Lipka |
hlipka | 6:7ba288afed38 | 4 | * |
hlipka | 6:7ba288afed38 | 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
hlipka | 6:7ba288afed38 | 6 | * of this software and associated documentation files (the "Software"), to deal |
hlipka | 6:7ba288afed38 | 7 | * in the Software without restriction, including without limitation the rights |
hlipka | 6:7ba288afed38 | 8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
hlipka | 6:7ba288afed38 | 9 | * copies of the Software, and to permit persons to whom the Software is |
hlipka | 6:7ba288afed38 | 10 | * furnished to do so, subject to the following conditions: |
hlipka | 6:7ba288afed38 | 11 | * |
hlipka | 6:7ba288afed38 | 12 | * The above copyright notice and this permission notice shall be included in |
hlipka | 6:7ba288afed38 | 13 | * all copies or substantial portions of the Software. |
hlipka | 6:7ba288afed38 | 14 | * |
hlipka | 6:7ba288afed38 | 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
hlipka | 6:7ba288afed38 | 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
hlipka | 6:7ba288afed38 | 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
hlipka | 6:7ba288afed38 | 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
hlipka | 6:7ba288afed38 | 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
hlipka | 6:7ba288afed38 | 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
hlipka | 6:7ba288afed38 | 21 | * THE SOFTWARE. |
hlipka | 6:7ba288afed38 | 22 | */ |
hlipka | 6:7ba288afed38 | 23 | |
hlipka | 6:7ba288afed38 | 24 | #include "sed1335text.h" |
hlipka | 6:7ba288afed38 | 25 | |
hlipka | 6:7ba288afed38 | 26 | #include "BusOut.h" |
hlipka | 6:7ba288afed38 | 27 | #include "DigitalOut.h" |
hlipka | 6:7ba288afed38 | 28 | #include "wait_api.h" |
hlipka | 6:7ba288afed38 | 29 | |
hlipka | 7:b472970bd8f6 | 30 | #define FIRSTBANK_MEM 0 |
hlipka | 7:b472970bd8f6 | 31 | #define SECONDBANK_MEM 0x1000 |
hlipka | 7:b472970bd8f6 | 32 | #define THIRDBANK_MEM 0x800 |
hlipka | 7:b472970bd8f6 | 33 | |
hlipka | 7:b472970bd8f6 | 34 | #define HIGH(x) ((x&0xff00)>>8) |
hlipka | 7:b472970bd8f6 | 35 | #define LOW(x) (x&0xff) |
hlipka | 7:b472970bd8f6 | 36 | |
hlipka | 6:7ba288afed38 | 37 | void SED1335TextLCD::writeText(const unsigned int column, const unsigned int row, const char text[]) { |
hlipka | 6:7ba288afed38 | 38 | int i=0; |
hlipka | 6:7ba288afed38 | 39 | |
hlipka | 6:7ba288afed38 | 40 | int pos=row*getColumns()+column; |
hlipka | 6:7ba288afed38 | 41 | |
hlipka | 6:7ba288afed38 | 42 | sendCmd(0x46); // set cursor addr |
hlipka | 7:b472970bd8f6 | 43 | sendData(LOW(pos)); |
hlipka | 7:b472970bd8f6 | 44 | sendData(HIGH(pos)); |
hlipka | 6:7ba288afed38 | 45 | |
hlipka | 6:7ba288afed38 | 46 | sendCmd(0x42); |
hlipka | 6:7ba288afed38 | 47 | while (text[i]!=0) { |
hlipka | 6:7ba288afed38 | 48 | sendData(text[i]); |
hlipka | 6:7ba288afed38 | 49 | i++; |
hlipka | 6:7ba288afed38 | 50 | } |
hlipka | 6:7ba288afed38 | 51 | } |
hlipka | 6:7ba288afed38 | 52 | |
hlipka | 7:b472970bd8f6 | 53 | void SED1335TextLCD::clearBank(int start, int size, int data) { |
hlipka | 6:7ba288afed38 | 54 | sendCmd(0x46); // set cursor addr |
hlipka | 7:b472970bd8f6 | 55 | sendData(LOW(start)); // start of RAM |
hlipka | 7:b472970bd8f6 | 56 | sendData(HIGH(start)); |
hlipka | 6:7ba288afed38 | 57 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 58 | |
hlipka | 6:7ba288afed38 | 59 | sendCmd(0x42); // write to memory |
hlipka | 7:b472970bd8f6 | 60 | for (int i=0;i<size;i++) |
hlipka | 7:b472970bd8f6 | 61 | sendData(data); // send space |
hlipka | 6:7ba288afed38 | 62 | wait_ms(1); |
hlipka | 7:b472970bd8f6 | 63 | } |
hlipka | 6:7ba288afed38 | 64 | |
hlipka | 7:b472970bd8f6 | 65 | void SED1335TextLCD::clear() { |
hlipka | 7:b472970bd8f6 | 66 | _guard->take(); |
hlipka | 7:b472970bd8f6 | 67 | |
hlipka | 7:b472970bd8f6 | 68 | clearBank(FIRSTBANK_MEM,getColumns()*getRows(),0x20); |
hlipka | 7:b472970bd8f6 | 69 | clearBank(SECONDBANK_MEM,getColumns()*getRows()*8,0); |
hlipka | 7:b472970bd8f6 | 70 | clearBank(THIRDBANK_MEM,getColumns()*getRows(),0); |
hlipka | 6:7ba288afed38 | 71 | |
hlipka | 6:7ba288afed38 | 72 | _guard->release(); |
hlipka | 6:7ba288afed38 | 73 | } |
hlipka | 6:7ba288afed38 | 74 | |
hlipka | 6:7ba288afed38 | 75 | |
hlipka | 6:7ba288afed38 | 76 | void SED1335TextLCD::character(int column, int row, int c){ |
hlipka | 6:7ba288afed38 | 77 | _guard->take(); |
hlipka | 6:7ba288afed38 | 78 | _guard->release(); |
hlipka | 6:7ba288afed38 | 79 | } |
hlipka | 6:7ba288afed38 | 80 | |
hlipka | 6:7ba288afed38 | 81 | SED1335TextLCD::SED1335TextLCD |
hlipka | 6:7ba288afed38 | 82 | (const unsigned int columns, const unsigned int rows, BusOut *data, const PinName read, const PinName write, const PinName cs, const PinName a0, const PinName reset) |
hlipka | 6:7ba288afed38 | 83 | :TextLCDBase(columns, rows) { |
hlipka | 6:7ba288afed38 | 84 | _data=data; |
hlipka | 6:7ba288afed38 | 85 | _rd=new DigitalOut(read); |
hlipka | 6:7ba288afed38 | 86 | _wr=new DigitalOut(write); |
hlipka | 6:7ba288afed38 | 87 | _a0=new DigitalOut(a0); |
hlipka | 6:7ba288afed38 | 88 | _cs=new DigitalOut(cs); |
hlipka | 6:7ba288afed38 | 89 | _reset=new DigitalOut(reset); |
hlipka | 6:7ba288afed38 | 90 | wait_ms(10); |
hlipka | 6:7ba288afed38 | 91 | } |
hlipka | 6:7ba288afed38 | 92 | |
hlipka | 6:7ba288afed38 | 93 | void SED1335TextLCD::init() { |
hlipka | 6:7ba288afed38 | 94 | _reset->write(0); |
hlipka | 6:7ba288afed38 | 95 | wait_ms(2); |
hlipka | 6:7ba288afed38 | 96 | _reset->write(1); |
hlipka | 6:7ba288afed38 | 97 | wait_ms(10); |
hlipka | 6:7ba288afed38 | 98 | |
hlipka | 6:7ba288afed38 | 99 | sendCmd(0x40); // SYSTEM SET |
hlipka | 6:7ba288afed38 | 100 | sendData(0x30); // p1 set cg rom |
hlipka | 6:7ba288afed38 | 101 | sendData(0x87); // p2 |
hlipka | 6:7ba288afed38 | 102 | sendData(0x7); // p3 |
hlipka | 7:b472970bd8f6 | 103 | sendData(getColumns()-1); // p4 |
hlipka | 7:b472970bd8f6 | 104 | sendData(getColumns()+3); // p5 |
hlipka | 6:7ba288afed38 | 105 | sendData(0xef); // p6 |
hlipka | 7:b472970bd8f6 | 106 | sendData(getColumns()); // p7 |
hlipka | 6:7ba288afed38 | 107 | sendData(0x0); // p8 |
hlipka | 6:7ba288afed38 | 108 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 109 | |
hlipka | 6:7ba288afed38 | 110 | sendCmd(0x44); // SCROLL |
hlipka | 7:b472970bd8f6 | 111 | sendData(LOW(FIRSTBANK_MEM)); // first block |
hlipka | 7:b472970bd8f6 | 112 | sendData(HIGH(FIRSTBANK_MEM)); |
hlipka | 7:b472970bd8f6 | 113 | sendData(getRows()*8); // lines |
hlipka | 7:b472970bd8f6 | 114 | sendData(LOW(SECONDBANK_MEM)); // second block |
hlipka | 7:b472970bd8f6 | 115 | sendData(HIGH(SECONDBANK_MEM)); |
hlipka | 7:b472970bd8f6 | 116 | sendData(getRows()*8); // lines |
hlipka | 7:b472970bd8f6 | 117 | sendData(LOW(THIRDBANK_MEM)); // third block at 0x800 |
hlipka | 7:b472970bd8f6 | 118 | sendData(HIGH(THIRDBANK_MEM)); |
hlipka | 6:7ba288afed38 | 119 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 120 | |
hlipka | 6:7ba288afed38 | 121 | sendCmd(0x5a); // HDOT SCR |
hlipka | 6:7ba288afed38 | 122 | sendData(0x0); |
hlipka | 6:7ba288afed38 | 123 | |
hlipka | 6:7ba288afed38 | 124 | |
hlipka | 6:7ba288afed38 | 125 | sendCmd(0x5b); // OVLAY |
hlipka | 6:7ba288afed38 | 126 | sendData(0x01); // 2 layers, text, x-or |
hlipka | 6:7ba288afed38 | 127 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 128 | |
hlipka | 6:7ba288afed38 | 129 | sendCmd(0x59); // DISP on |
hlipka | 6:7ba288afed38 | 130 | sendData(0x54); // all layers on, cursor off |
hlipka | 6:7ba288afed38 | 131 | // sendData(0x56); // all layers on, cursor flashing |
hlipka | 6:7ba288afed38 | 132 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 133 | |
hlipka | 6:7ba288afed38 | 134 | clear(); |
hlipka | 6:7ba288afed38 | 135 | |
hlipka | 6:7ba288afed38 | 136 | sendCmd(0x5d); // CSR FORM |
hlipka | 6:7ba288afed38 | 137 | sendData(0x04); // 8 pixels wide |
hlipka | 6:7ba288afed38 | 138 | sendData(0x86); // 2 pixel high, block cursor |
hlipka | 6:7ba288afed38 | 139 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 140 | |
hlipka | 6:7ba288afed38 | 141 | sendCmd(0x4c); // CSR DIR right |
hlipka | 6:7ba288afed38 | 142 | wait_ms(1); |
hlipka | 6:7ba288afed38 | 143 | |
hlipka | 6:7ba288afed38 | 144 | } |
hlipka | 6:7ba288afed38 | 145 | |
hlipka | 6:7ba288afed38 | 146 | void SED1335TextLCD::sendCmd(const unsigned char cmd) { |
hlipka | 6:7ba288afed38 | 147 | _rd->write(1); |
hlipka | 6:7ba288afed38 | 148 | _wr->write(1); |
hlipka | 6:7ba288afed38 | 149 | _a0->write(1); |
hlipka | 6:7ba288afed38 | 150 | _cs->write(0); |
hlipka | 6:7ba288afed38 | 151 | // address setup time is 0 |
hlipka | 6:7ba288afed38 | 152 | sendByte(cmd); |
hlipka | 6:7ba288afed38 | 153 | wait_us(10); |
hlipka | 6:7ba288afed38 | 154 | } |
hlipka | 6:7ba288afed38 | 155 | |
hlipka | 6:7ba288afed38 | 156 | void SED1335TextLCD::sendData(const unsigned char cmd) { |
hlipka | 6:7ba288afed38 | 157 | _rd->write(1); |
hlipka | 6:7ba288afed38 | 158 | _wr->write(1); |
hlipka | 6:7ba288afed38 | 159 | _a0->write(0); |
hlipka | 6:7ba288afed38 | 160 | _cs->write(0); |
hlipka | 6:7ba288afed38 | 161 | // address setup time is 0 |
hlipka | 6:7ba288afed38 | 162 | sendByte(cmd); |
hlipka | 6:7ba288afed38 | 163 | wait_us(10); |
hlipka | 6:7ba288afed38 | 164 | } |
hlipka | 6:7ba288afed38 | 165 | |
hlipka | 6:7ba288afed38 | 166 | void SED1335TextLCD::sendByte(const unsigned char byte) { |
hlipka | 6:7ba288afed38 | 167 | // display reads with rising flank of /wr |
hlipka | 6:7ba288afed38 | 168 | // first, set data, then set /wr low (no timing needed) |
hlipka | 6:7ba288afed38 | 169 | _data->write(byte); |
hlipka | 6:7ba288afed38 | 170 | _wr->write(0); |
hlipka | 6:7ba288afed38 | 171 | // wait for setup |
hlipka | 6:7ba288afed38 | 172 | wait_us(1); |
hlipka | 6:7ba288afed38 | 173 | // set /wr back to high |
hlipka | 6:7ba288afed38 | 174 | _wr->write(1); |
hlipka | 6:7ba288afed38 | 175 | // address / data hold time is 10 / 5 ns, so its handled by executing normal code :) |
hlipka | 6:7ba288afed38 | 176 | } |