UniGraphic-Fork for ST7920-LCD-controller and SH1106. Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
Dependents: UniGraphic-St7920-Test AfficheurUTILECO
Fork of UniGraphic by
Fork of the UniGraphic-Library for monochrome LCDs with ST7920 controller and 128x64-IIC-OLED-Display with SH1106-Controller
Had to adapt LCD for following reasons:
- Give access to screenbuffer buffer[] to parent class
- pixel() and pixel_read() as they are hardware-dependent
- added reset-pin to IIC-Interface
GraphicDisplay:: sends buffer to LCD when auto_update is set to true.
Testprogram for ST7920 can be found here:
https://developer.mbed.org/users/charly/code/UniGraphic-St7920-Test/
Protocols/PAR16.cpp@38:1b6f9fc49a03, 2018-10-30 (annotated)
- Committer:
- charly
- Date:
- Tue Oct 30 20:00:29 2018 +0000
- Revision:
- 38:1b6f9fc49a03
- Parent:
- 27:acb2594b8aa4
some modifications.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Geremia | 4:12ba0ecc2c1f | 1 | /* mbed UniGraphic library - PAR16 protocol class |
Geremia | 4:12ba0ecc2c1f | 2 | * Copyright (c) 2015 Giuliano Dianda |
Geremia | 4:12ba0ecc2c1f | 3 | * Released under the MIT License: http://mbed.org/license/mit |
Geremia | 4:12ba0ecc2c1f | 4 | * |
Geremia | 4:12ba0ecc2c1f | 5 | * Derived work of: |
Geremia | 4:12ba0ecc2c1f | 6 | * |
Geremia | 4:12ba0ecc2c1f | 7 | * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller |
Geremia | 4:12ba0ecc2c1f | 8 | * Copyright (c) 2013 Peter Drescher - DC2PD |
Geremia | 4:12ba0ecc2c1f | 9 | * |
Geremia | 4:12ba0ecc2c1f | 10 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
Geremia | 4:12ba0ecc2c1f | 11 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
Geremia | 4:12ba0ecc2c1f | 12 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
Geremia | 4:12ba0ecc2c1f | 13 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
Geremia | 4:12ba0ecc2c1f | 14 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
Geremia | 4:12ba0ecc2c1f | 15 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
Geremia | 4:12ba0ecc2c1f | 16 | * THE SOFTWARE. |
Geremia | 4:12ba0ecc2c1f | 17 | */ |
dreschpe | 27:acb2594b8aa4 | 18 | #include "platform.h" |
dreschpe | 25:daacdcf34e52 | 19 | #if DEVICE_PORTINOUT |
dreschpe | 25:daacdcf34e52 | 20 | |
Geremia | 4:12ba0ecc2c1f | 21 | #include "PAR16.h" |
Geremia | 4:12ba0ecc2c1f | 22 | |
Geremia | 4:12ba0ecc2c1f | 23 | PAR16::PAR16(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD) |
Geremia | 4:12ba0ecc2c1f | 24 | : _port(port,0xFFFF), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD) |
Geremia | 4:12ba0ecc2c1f | 25 | { |
Geremia | 4:12ba0ecc2c1f | 26 | _reset = 1; |
Geremia | 4:12ba0ecc2c1f | 27 | _DC=1; |
Geremia | 4:12ba0ecc2c1f | 28 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 29 | _RD=1; |
Geremia | 4:12ba0ecc2c1f | 30 | _CS=1; |
Geremia | 4:12ba0ecc2c1f | 31 | _port.mode(PullNone); |
Geremia | 4:12ba0ecc2c1f | 32 | _port.output(); // will re-enable our GPIO port |
Geremia | 4:12ba0ecc2c1f | 33 | hw_reset(); |
Geremia | 4:12ba0ecc2c1f | 34 | } |
Geremia | 4:12ba0ecc2c1f | 35 | |
Geremia | 4:12ba0ecc2c1f | 36 | void PAR16::wr_cmd8(unsigned char cmd) |
Geremia | 20:14daa48ffd4c | 37 | { |
Geremia | 4:12ba0ecc2c1f | 38 | _DC = 0; // 0=cmd |
Geremia | 4:12ba0ecc2c1f | 39 | _port.write(cmd); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 40 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 41 | _WR=1; |
Geremia | 20:14daa48ffd4c | 42 | _DC = 1; // 1=data next |
Geremia | 4:12ba0ecc2c1f | 43 | } |
Geremia | 4:12ba0ecc2c1f | 44 | void PAR16::wr_data8(unsigned char data) |
Geremia | 4:12ba0ecc2c1f | 45 | { |
Geremia | 4:12ba0ecc2c1f | 46 | _port.write(data); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 47 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 48 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 49 | } |
Geremia | 4:12ba0ecc2c1f | 50 | void PAR16::wr_cmd16(unsigned short cmd) |
Geremia | 20:14daa48ffd4c | 51 | { |
Geremia | 4:12ba0ecc2c1f | 52 | _DC = 0; // 0=cmd |
Geremia | 4:12ba0ecc2c1f | 53 | _port.write(cmd>>8); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 54 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 55 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 56 | _port.write(cmd&0xFF); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 57 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 58 | _WR=1; |
Geremia | 20:14daa48ffd4c | 59 | _DC = 1; // 1=data next |
Geremia | 4:12ba0ecc2c1f | 60 | } |
Geremia | 4:12ba0ecc2c1f | 61 | void PAR16::wr_data16(unsigned short data) |
Geremia | 4:12ba0ecc2c1f | 62 | { |
Geremia | 4:12ba0ecc2c1f | 63 | _port.write(data>>8); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 64 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 65 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 66 | _port.write(data&0xFF); // write 8bit |
Geremia | 4:12ba0ecc2c1f | 67 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 68 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 69 | } |
Geremia | 4:12ba0ecc2c1f | 70 | void PAR16::wr_gram(unsigned short data) |
Geremia | 4:12ba0ecc2c1f | 71 | { |
Geremia | 4:12ba0ecc2c1f | 72 | _port.write(data); // write 16bit |
Geremia | 4:12ba0ecc2c1f | 73 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 74 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 75 | } |
Geremia | 4:12ba0ecc2c1f | 76 | void PAR16::wr_gram(unsigned short data, unsigned int count) |
Geremia | 4:12ba0ecc2c1f | 77 | { |
Geremia | 4:12ba0ecc2c1f | 78 | while(count) |
Geremia | 4:12ba0ecc2c1f | 79 | { |
Geremia | 20:14daa48ffd4c | 80 | _port.write(data); // rewrite even if same data, otherwise too much fast |
Geremia | 4:12ba0ecc2c1f | 81 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 82 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 83 | count--; |
Geremia | 4:12ba0ecc2c1f | 84 | } |
Geremia | 4:12ba0ecc2c1f | 85 | } |
Geremia | 4:12ba0ecc2c1f | 86 | void PAR16::wr_grambuf(unsigned short* data, unsigned int lenght) |
Geremia | 4:12ba0ecc2c1f | 87 | { |
Geremia | 4:12ba0ecc2c1f | 88 | while(lenght) |
Geremia | 4:12ba0ecc2c1f | 89 | { |
Geremia | 4:12ba0ecc2c1f | 90 | _port.write(*data); // write 16bit |
Geremia | 4:12ba0ecc2c1f | 91 | _WR=0; |
Geremia | 4:12ba0ecc2c1f | 92 | _WR=1; |
Geremia | 4:12ba0ecc2c1f | 93 | data++; |
Geremia | 4:12ba0ecc2c1f | 94 | lenght--; |
Geremia | 4:12ba0ecc2c1f | 95 | } |
Geremia | 4:12ba0ecc2c1f | 96 | } |
Geremia | 11:b842b8e332cb | 97 | unsigned short PAR16::rd_gram(bool convert) |
Geremia | 5:b222a9461d6b | 98 | { |
Geremia | 11:b842b8e332cb | 99 | unsigned int r=0; |
Geremia | 7:bb0383b91104 | 100 | _port.input(); |
Geremia | 7:bb0383b91104 | 101 | |
Geremia | 7:bb0383b91104 | 102 | _RD = 0; |
Geremia | 7:bb0383b91104 | 103 | _port.read(); //dummy read |
Geremia | 7:bb0383b91104 | 104 | _RD = 1; |
Geremia | 7:bb0383b91104 | 105 | |
Geremia | 7:bb0383b91104 | 106 | _RD = 0; |
Geremia | 20:14daa48ffd4c | 107 | // _RD = 0; // add wait |
Geremia | 7:bb0383b91104 | 108 | r |= _port.read(); |
Geremia | 7:bb0383b91104 | 109 | _RD = 1; |
Geremia | 11:b842b8e332cb | 110 | if(convert) |
Geremia | 11:b842b8e332cb | 111 | { |
Geremia | 11:b842b8e332cb | 112 | r <<= 8; |
Geremia | 11:b842b8e332cb | 113 | _RD = 0; |
Geremia | 11:b842b8e332cb | 114 | // _RD = 0; // add wait |
Geremia | 11:b842b8e332cb | 115 | r |= _port.read()>>8; //MSB of port read is blue, LSB is red of next pixel |
Geremia | 11:b842b8e332cb | 116 | _RD = 1; |
Geremia | 11:b842b8e332cb | 117 | // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit |
Geremia | 11:b842b8e332cb | 118 | // during reading, you read the raw 18bit gram |
Geremia | 11:b842b8e332cb | 119 | r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit |
Geremia | 11:b842b8e332cb | 120 | } |
Geremia | 7:bb0383b91104 | 121 | _port.output(); |
Geremia | 11:b842b8e332cb | 122 | return (unsigned short)r; |
Geremia | 7:bb0383b91104 | 123 | } |
Geremia | 7:bb0383b91104 | 124 | unsigned int PAR16::rd_reg_data32(unsigned char reg) |
Geremia | 7:bb0383b91104 | 125 | { |
Geremia | 7:bb0383b91104 | 126 | wr_cmd8(reg); |
Geremia | 5:b222a9461d6b | 127 | unsigned int r=0; |
Geremia | 20:14daa48ffd4c | 128 | // _DC = 1; // 1=data |
Geremia | 5:b222a9461d6b | 129 | _port.input(); |
Geremia | 5:b222a9461d6b | 130 | |
Geremia | 5:b222a9461d6b | 131 | _RD = 0; |
Geremia | 5:b222a9461d6b | 132 | _port.read(); //dummy read |
Geremia | 5:b222a9461d6b | 133 | _RD = 1; |
Geremia | 5:b222a9461d6b | 134 | |
Geremia | 5:b222a9461d6b | 135 | _RD = 0; |
Geremia | 5:b222a9461d6b | 136 | // _RD = 0; // add wait |
Geremia | 5:b222a9461d6b | 137 | r |= (_port.read()&0xFF); |
Geremia | 5:b222a9461d6b | 138 | r <<= 8; |
Geremia | 5:b222a9461d6b | 139 | _RD = 1; |
Geremia | 5:b222a9461d6b | 140 | |
Geremia | 5:b222a9461d6b | 141 | _RD = 0; |
Geremia | 5:b222a9461d6b | 142 | // _RD = 0; // add wait |
Geremia | 5:b222a9461d6b | 143 | r |= (_port.read()&0xFF); |
Geremia | 5:b222a9461d6b | 144 | r <<= 8; |
Geremia | 5:b222a9461d6b | 145 | _RD = 1; |
Geremia | 5:b222a9461d6b | 146 | |
Geremia | 5:b222a9461d6b | 147 | _RD = 0; |
Geremia | 5:b222a9461d6b | 148 | // _RD = 0; // add wait |
Geremia | 5:b222a9461d6b | 149 | r |= (_port.read()&0xFF); |
Geremia | 5:b222a9461d6b | 150 | r <<= 8; |
Geremia | 5:b222a9461d6b | 151 | _RD = 1; |
Geremia | 5:b222a9461d6b | 152 | |
Geremia | 5:b222a9461d6b | 153 | _RD = 0; |
Geremia | 5:b222a9461d6b | 154 | // _RD = 0; // add wait |
Geremia | 5:b222a9461d6b | 155 | r |= (_port.read()&0xFF); |
Geremia | 5:b222a9461d6b | 156 | _RD = 1; |
Geremia | 5:b222a9461d6b | 157 | |
Geremia | 20:14daa48ffd4c | 158 | _CS = 1; // toggle CS to interupt the cmd in case was not supported |
Geremia | 5:b222a9461d6b | 159 | _CS = 0; |
Geremia | 20:14daa48ffd4c | 160 | |
Geremia | 5:b222a9461d6b | 161 | _port.output(); |
Geremia | 5:b222a9461d6b | 162 | return r; |
Geremia | 5:b222a9461d6b | 163 | } |
Geremia | 7:bb0383b91104 | 164 | // in Par mode EXTC regs (0xB0-0xFF) can be directly read |
Geremia | 7:bb0383b91104 | 165 | unsigned int PAR16::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd) |
Geremia | 5:b222a9461d6b | 166 | { |
Geremia | 7:bb0383b91104 | 167 | return rd_reg_data32(reg); |
Geremia | 5:b222a9461d6b | 168 | } |
Geremia | 20:14daa48ffd4c | 169 | // ILI932x specific |
Geremia | 20:14daa48ffd4c | 170 | void PAR16::dummyread() |
Geremia | 20:14daa48ffd4c | 171 | { |
Geremia | 20:14daa48ffd4c | 172 | _port.input(); |
Geremia | 20:14daa48ffd4c | 173 | _RD = 0; |
Geremia | 20:14daa48ffd4c | 174 | _port.read(); // dummy read |
Geremia | 20:14daa48ffd4c | 175 | _RD=1; |
Geremia | 20:14daa48ffd4c | 176 | // _port.output(); |
Geremia | 20:14daa48ffd4c | 177 | } |
Geremia | 20:14daa48ffd4c | 178 | // ILI932x specific |
Geremia | 20:14daa48ffd4c | 179 | void PAR16::reg_select(unsigned char reg, bool forread) |
Geremia | 20:14daa48ffd4c | 180 | { |
Geremia | 20:14daa48ffd4c | 181 | _DC = 0; |
Geremia | 20:14daa48ffd4c | 182 | _port.write(reg); // write 16bit |
Geremia | 20:14daa48ffd4c | 183 | _WR=0; |
Geremia | 20:14daa48ffd4c | 184 | _WR=1; |
Geremia | 20:14daa48ffd4c | 185 | _DC = 1; // 1=data next |
Geremia | 20:14daa48ffd4c | 186 | } |
Geremia | 20:14daa48ffd4c | 187 | // ILI932x specific |
Geremia | 20:14daa48ffd4c | 188 | void PAR16::reg_write(unsigned char reg, unsigned short data) |
Geremia | 20:14daa48ffd4c | 189 | { |
Geremia | 20:14daa48ffd4c | 190 | _DC = 0; |
Geremia | 20:14daa48ffd4c | 191 | _port.write(reg); // write 16bit |
Geremia | 20:14daa48ffd4c | 192 | _WR=0; |
Geremia | 20:14daa48ffd4c | 193 | _WR=1; |
Geremia | 20:14daa48ffd4c | 194 | _DC = 1; |
Geremia | 20:14daa48ffd4c | 195 | _port.write(data); // write 16bit |
Geremia | 20:14daa48ffd4c | 196 | _WR=0; |
Geremia | 20:14daa48ffd4c | 197 | _WR=1; |
Geremia | 20:14daa48ffd4c | 198 | } |
Geremia | 20:14daa48ffd4c | 199 | // ILI932x specific |
Geremia | 20:14daa48ffd4c | 200 | unsigned short PAR16::reg_read(unsigned char reg) |
Geremia | 20:14daa48ffd4c | 201 | { |
Geremia | 20:14daa48ffd4c | 202 | unsigned short r=0; |
Geremia | 20:14daa48ffd4c | 203 | _DC = 0; |
Geremia | 20:14daa48ffd4c | 204 | _port.write(reg); // write 16bit |
Geremia | 20:14daa48ffd4c | 205 | _WR=0; |
Geremia | 20:14daa48ffd4c | 206 | _WR=1; |
Geremia | 20:14daa48ffd4c | 207 | _DC = 1; |
Geremia | 20:14daa48ffd4c | 208 | _port.input(); |
Geremia | 20:14daa48ffd4c | 209 | _RD=0; |
Geremia | 20:14daa48ffd4c | 210 | r |= _port.read(); // read 16bit |
Geremia | 20:14daa48ffd4c | 211 | _RD=1; |
Geremia | 20:14daa48ffd4c | 212 | _port.output(); |
Geremia | 20:14daa48ffd4c | 213 | return r; |
Geremia | 20:14daa48ffd4c | 214 | } |
Geremia | 4:12ba0ecc2c1f | 215 | void PAR16::hw_reset() |
Geremia | 4:12ba0ecc2c1f | 216 | { |
Geremia | 4:12ba0ecc2c1f | 217 | wait_ms(15); |
Geremia | 4:12ba0ecc2c1f | 218 | _DC = 1; |
Geremia | 4:12ba0ecc2c1f | 219 | _CS = 1; |
Geremia | 4:12ba0ecc2c1f | 220 | _WR = 1; |
Geremia | 4:12ba0ecc2c1f | 221 | _RD = 1; |
Geremia | 4:12ba0ecc2c1f | 222 | _reset = 0; // display reset |
Geremia | 20:14daa48ffd4c | 223 | wait_ms(2); |
Geremia | 4:12ba0ecc2c1f | 224 | _reset = 1; // end reset |
Geremia | 20:14daa48ffd4c | 225 | wait_ms(100); |
Geremia | 4:12ba0ecc2c1f | 226 | } |
Geremia | 4:12ba0ecc2c1f | 227 | void PAR16::BusEnable(bool enable) |
Geremia | 4:12ba0ecc2c1f | 228 | { |
Geremia | 4:12ba0ecc2c1f | 229 | _CS = enable ? 0:1; |
dreschpe | 25:daacdcf34e52 | 230 | } |
dreschpe | 25:daacdcf34e52 | 231 | |
dreschpe | 25:daacdcf34e52 | 232 | #endif |