Display text on LCD displays (even on multiple ones). Allow to create windows (frames) on display, and to combine them (split, add, duplicate, scroll). See http://mbed.org/users/hlipka/notebook/lcdwindow/ for more information.
dogm_spi.cpp@9:2fe93daa2106, 2011-02-22 (annotated)
- Committer:
- hlipka
- Date:
- Tue Feb 22 22:57:44 2011 +0000
- Revision:
- 9:2fe93daa2106
- Parent:
- 3:e5d5e2fe4bf6
fixed semaphore handling - should now be really thread safe (can be called from interrupts)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hlipka | 0:ae5037e3d6e0 | 1 | /* |
hlipka | 0:ae5037e3d6e0 | 2 | * mbed LCDWindow library |
hlipka | 0:ae5037e3d6e0 | 3 | * Copyright (c) 2010 Hendrik Lipka |
hlipka | 0:ae5037e3d6e0 | 4 | * |
hlipka | 0:ae5037e3d6e0 | 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
hlipka | 0:ae5037e3d6e0 | 6 | * of this software and associated documentation files (the "Software"), to deal |
hlipka | 0:ae5037e3d6e0 | 7 | * in the Software without restriction, including without limitation the rights |
hlipka | 0:ae5037e3d6e0 | 8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
hlipka | 0:ae5037e3d6e0 | 9 | * copies of the Software, and to permit persons to whom the Software is |
hlipka | 0:ae5037e3d6e0 | 10 | * furnished to do so, subject to the following conditions: |
hlipka | 0:ae5037e3d6e0 | 11 | * |
hlipka | 0:ae5037e3d6e0 | 12 | * The above copyright notice and this permission notice shall be included in |
hlipka | 0:ae5037e3d6e0 | 13 | * all copies or substantial portions of the Software. |
hlipka | 0:ae5037e3d6e0 | 14 | * |
hlipka | 0:ae5037e3d6e0 | 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
hlipka | 0:ae5037e3d6e0 | 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
hlipka | 0:ae5037e3d6e0 | 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
hlipka | 0:ae5037e3d6e0 | 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
hlipka | 0:ae5037e3d6e0 | 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
hlipka | 0:ae5037e3d6e0 | 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
hlipka | 0:ae5037e3d6e0 | 21 | * THE SOFTWARE. |
hlipka | 0:ae5037e3d6e0 | 22 | */ |
hlipka | 0:ae5037e3d6e0 | 23 | |
hlipka | 0:ae5037e3d6e0 | 24 | #include "dogm_spi.h" |
hlipka | 0:ae5037e3d6e0 | 25 | |
hlipka | 0:ae5037e3d6e0 | 26 | #include "SPI.h" |
hlipka | 0:ae5037e3d6e0 | 27 | #include "DigitalOut.h" |
hlipka | 0:ae5037e3d6e0 | 28 | #include "wait_api.h" |
hlipka | 0:ae5037e3d6e0 | 29 | |
hlipka | 0:ae5037e3d6e0 | 30 | DogmLCDSPI::DogmLCDSPI |
hlipka | 2:5ac5bab7daaf | 31 | (unsigned int columns, unsigned int rows, SPI *spi, PinName enable, PinName rs) |
hlipka | 2:5ac5bab7daaf | 32 | :SPILCDBase(columns,rows,spi,enable,rs) |
hlipka | 0:ae5037e3d6e0 | 33 | { |
hlipka | 0:ae5037e3d6e0 | 34 | } |
hlipka | 0:ae5037e3d6e0 | 35 | |
hlipka | 0:ae5037e3d6e0 | 36 | void DogmLCDSPI::init() |
hlipka | 0:ae5037e3d6e0 | 37 | { |
hlipka | 0:ae5037e3d6e0 | 38 | unsigned char initCmd[10]={0x38,0x39,0x14,0x55,0x6d,0x78,0x38,0x0c,0x01,0x06}; |
hlipka | 0:ae5037e3d6e0 | 39 | |
hlipka | 0:ae5037e3d6e0 | 40 | _enable->write(1); |
hlipka | 0:ae5037e3d6e0 | 41 | wait_ms(80); |
hlipka | 0:ae5037e3d6e0 | 42 | |
hlipka | 0:ae5037e3d6e0 | 43 | for (int i=0;i<sizeof(initCmd);i++) |
hlipka | 0:ae5037e3d6e0 | 44 | { |
hlipka | 0:ae5037e3d6e0 | 45 | sendCmd(initCmd[i]); |
hlipka | 0:ae5037e3d6e0 | 46 | wait_ms(4); |
hlipka | 0:ae5037e3d6e0 | 47 | } |
hlipka | 0:ae5037e3d6e0 | 48 | } |
hlipka | 0:ae5037e3d6e0 | 49 | |
hlipka | 2:5ac5bab7daaf | 50 | void DogmLCDSPI::character(int column, int row, int c) |
hlipka | 0:ae5037e3d6e0 | 51 | { |
hlipka | 2:5ac5bab7daaf | 52 | int address=(row)*0x40+(column); |
hlipka | 9:2fe93daa2106 | 53 | if (!_guard->take()) |
hlipka | 9:2fe93daa2106 | 54 | return; |
hlipka | 2:5ac5bab7daaf | 55 | sendCmd((char)address|0x80); |
hlipka | 2:5ac5bab7daaf | 56 | wait_ms(1); |
hlipka | 2:5ac5bab7daaf | 57 | sendData(c); |
hlipka | 3:e5d5e2fe4bf6 | 58 | _guard->release(); |
hlipka | 2:5ac5bab7daaf | 59 | wait_ms(1); |
hlipka | 2:5ac5bab7daaf | 60 | } |
hlipka | 2:5ac5bab7daaf | 61 | |
hlipka | 2:5ac5bab7daaf | 62 | void DogmLCDSPI::writeText(const unsigned int column, const unsigned int row, const char text[]) |
hlipka | 2:5ac5bab7daaf | 63 | { |
hlipka | 2:5ac5bab7daaf | 64 | int address=(row)*0x40+(column); |
hlipka | 9:2fe93daa2106 | 65 | if (!_guard->take()) |
hlipka | 9:2fe93daa2106 | 66 | return; |
hlipka | 0:ae5037e3d6e0 | 67 | sendCmd((char)address|0x80); |
hlipka | 0:ae5037e3d6e0 | 68 | wait_ms(1); |
hlipka | 0:ae5037e3d6e0 | 69 | |
hlipka | 0:ae5037e3d6e0 | 70 | int i=0; |
hlipka | 0:ae5037e3d6e0 | 71 | while(text[i]!=0) |
hlipka | 0:ae5037e3d6e0 | 72 | { |
hlipka | 0:ae5037e3d6e0 | 73 | sendData(text[i]); |
hlipka | 0:ae5037e3d6e0 | 74 | wait_ms(1); |
hlipka | 0:ae5037e3d6e0 | 75 | i++; |
hlipka | 0:ae5037e3d6e0 | 76 | } |
hlipka | 3:e5d5e2fe4bf6 | 77 | _guard->release(); |
hlipka | 0:ae5037e3d6e0 | 78 | } |
hlipka | 0:ae5037e3d6e0 | 79 | |
hlipka | 0:ae5037e3d6e0 | 80 | void DogmLCDSPI::clear() |
hlipka | 0:ae5037e3d6e0 | 81 | { |
hlipka | 9:2fe93daa2106 | 82 | if (!_guard->take()) |
hlipka | 9:2fe93daa2106 | 83 | return; |
hlipka | 0:ae5037e3d6e0 | 84 | sendCmd(1); |
hlipka | 3:e5d5e2fe4bf6 | 85 | _guard->release(); |
hlipka | 0:ae5037e3d6e0 | 86 | } |
hlipka | 0:ae5037e3d6e0 | 87 |