Juan Loreto / Mbed 2 deprecated Nucleo-F411RE-LGDP4535_TFT_Demo

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Dependencies:   mbed

Protocols/BUS8.cpp@0:e67bf8f398ee, 2015-08-23 (annotated)

Committer:
jloreto
Date:
Sun Aug 23 15:50:19 2015 +0000
Revision:
0:e67bf8f398ee
This program is to test MCU Friend shield based on LGDP4535 in Nucleo-F411RE board.; Libraries modified from Unigraphic Library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jloreto 0:e67bf8f398ee 1 /* mbed UniGraphic library - BUS8 protocol class
jloreto 0:e67bf8f398ee 2 * Copyright (c) 2015 Giuliano Dianda
jloreto 0:e67bf8f398ee 3 * Released under the MIT License: http://mbed.org/license/mit
jloreto 0:e67bf8f398ee 4 *
jloreto 0:e67bf8f398ee 5 * Derived work of:
jloreto 0:e67bf8f398ee 6 *
jloreto 0:e67bf8f398ee 7 * mbed library for 240*320 pixel display TFT based on ILI9341 LCD Controller
jloreto 0:e67bf8f398ee 8 * Copyright (c) 2013 Peter Drescher - DC2PD
jloreto 0:e67bf8f398ee 9 *
jloreto 0:e67bf8f398ee 10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
jloreto 0:e67bf8f398ee 11 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
jloreto 0:e67bf8f398ee 12 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
jloreto 0:e67bf8f398ee 13 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
jloreto 0:e67bf8f398ee 14 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jloreto 0:e67bf8f398ee 15 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
jloreto 0:e67bf8f398ee 16 * THE SOFTWARE.
jloreto 0:e67bf8f398ee 17 */
jloreto 0:e67bf8f398ee 18
jloreto 0:e67bf8f398ee 19 #include "BUS8.h"
jloreto 0:e67bf8f398ee 20
jloreto 0:e67bf8f398ee 21 BUS8::BUS8(PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD)
jloreto 0:e67bf8f398ee 22 : _bus(buspins), _CS(CS), _reset(reset), _DC(DC), _WR(WR), _RD(RD)
jloreto 0:e67bf8f398ee 23 {
jloreto 0:e67bf8f398ee 24 _reset = 1;
jloreto 0:e67bf8f398ee 25 _DC=1;
jloreto 0:e67bf8f398ee 26 _WR=1;
jloreto 0:e67bf8f398ee 27 _RD=1;
jloreto 0:e67bf8f398ee 28 _CS=1;
jloreto 0:e67bf8f398ee 29 _bus.mode(PullNone);
jloreto 0:e67bf8f398ee 30 _bus.output(); // will re-enable our GPIO port
jloreto 0:e67bf8f398ee 31 hw_reset();
jloreto 0:e67bf8f398ee 32 }
jloreto 0:e67bf8f398ee 33
jloreto 0:e67bf8f398ee 34 void BUS8::wr_cmd8(unsigned char cmd)
jloreto 0:e67bf8f398ee 35 {
jloreto 0:e67bf8f398ee 36 _DC = 0; // 0=cmd
jloreto 0:e67bf8f398ee 37 _bus.write(cmd); // write 8bit
jloreto 0:e67bf8f398ee 38 _WR=0;
jloreto 0:e67bf8f398ee 39 _WR=1;
jloreto 0:e67bf8f398ee 40 _DC = 1; // 1=data next
jloreto 0:e67bf8f398ee 41 }
jloreto 0:e67bf8f398ee 42 void BUS8::wr_data8(unsigned char data)
jloreto 0:e67bf8f398ee 43 {
jloreto 0:e67bf8f398ee 44 _bus.write(data); // write 8bit
jloreto 0:e67bf8f398ee 45 _WR=0;
jloreto 0:e67bf8f398ee 46 _WR=1;
jloreto 0:e67bf8f398ee 47 }
jloreto 0:e67bf8f398ee 48 void BUS8::wr_cmd16(unsigned short cmd)
jloreto 0:e67bf8f398ee 49 {
jloreto 0:e67bf8f398ee 50 _DC = 0; // 0=cmd
jloreto 0:e67bf8f398ee 51 _bus.write(cmd>>8); // write 8bit
jloreto 0:e67bf8f398ee 52 _WR=0;
jloreto 0:e67bf8f398ee 53 _WR=1;
jloreto 0:e67bf8f398ee 54 _bus.write(cmd&0xFF); // write 8bit
jloreto 0:e67bf8f398ee 55 _WR=0;
jloreto 0:e67bf8f398ee 56 _WR=1;
jloreto 0:e67bf8f398ee 57 _DC = 1; // 1=data next
jloreto 0:e67bf8f398ee 58 }
jloreto 0:e67bf8f398ee 59 void BUS8::wr_data16(unsigned short data)
jloreto 0:e67bf8f398ee 60 {
jloreto 0:e67bf8f398ee 61 _bus.write(data>>8); // write 8bit
jloreto 0:e67bf8f398ee 62 _WR=0;
jloreto 0:e67bf8f398ee 63 _WR=1;
jloreto 0:e67bf8f398ee 64 _bus.write(data&0xFF); // write 8bit
jloreto 0:e67bf8f398ee 65 _WR=0;
jloreto 0:e67bf8f398ee 66 _WR=1;
jloreto 0:e67bf8f398ee 67 }
jloreto 0:e67bf8f398ee 68 void BUS8::wr_gram(unsigned short data)
jloreto 0:e67bf8f398ee 69 {
jloreto 0:e67bf8f398ee 70 _bus.write(data>>8); // write 8bit
jloreto 0:e67bf8f398ee 71 _WR=0;
jloreto 0:e67bf8f398ee 72 _WR=1;
jloreto 0:e67bf8f398ee 73 _bus.write(data&0xFF); // write 8bit
jloreto 0:e67bf8f398ee 74 _WR=0;
jloreto 0:e67bf8f398ee 75 _WR=1;
jloreto 0:e67bf8f398ee 76 }
jloreto 0:e67bf8f398ee 77 void BUS8::wr_gram(unsigned short data, unsigned int count)
jloreto 0:e67bf8f398ee 78 {
jloreto 0:e67bf8f398ee 79 if((data>>8)==(data&0xFF))
jloreto 0:e67bf8f398ee 80 {
jloreto 0:e67bf8f398ee 81 count<<=1;
jloreto 0:e67bf8f398ee 82 // _bus.write(data); // write 8bit
jloreto 0:e67bf8f398ee 83 while(count)
jloreto 0:e67bf8f398ee 84 {
jloreto 0:e67bf8f398ee 85 _bus.write(data); // rewrite even if same data, otherwise too much fast
jloreto 0:e67bf8f398ee 86 _WR=0;
jloreto 0:e67bf8f398ee 87 _WR=1;
jloreto 0:e67bf8f398ee 88 count--;
jloreto 0:e67bf8f398ee 89 }
jloreto 0:e67bf8f398ee 90 }
jloreto 0:e67bf8f398ee 91 else
jloreto 0:e67bf8f398ee 92 {
jloreto 0:e67bf8f398ee 93 while(count)
jloreto 0:e67bf8f398ee 94 {
jloreto 0:e67bf8f398ee 95 _bus.write(data>>8); // write 8bit
jloreto 0:e67bf8f398ee 96 _WR=0;
jloreto 0:e67bf8f398ee 97 _WR=1;
jloreto 0:e67bf8f398ee 98 _bus.write(data&0xFF); // write 8bit
jloreto 0:e67bf8f398ee 99 _WR=0;
jloreto 0:e67bf8f398ee 100 _WR=1;
jloreto 0:e67bf8f398ee 101 count--;
jloreto 0:e67bf8f398ee 102 }
jloreto 0:e67bf8f398ee 103 }
jloreto 0:e67bf8f398ee 104 }
jloreto 0:e67bf8f398ee 105 void BUS8::wr_grambuf(unsigned short* data, unsigned int lenght)
jloreto 0:e67bf8f398ee 106 {
jloreto 0:e67bf8f398ee 107 while(lenght)
jloreto 0:e67bf8f398ee 108 {
jloreto 0:e67bf8f398ee 109 _bus.write((*data)>>8); // write 8bit
jloreto 0:e67bf8f398ee 110 _WR=0;
jloreto 0:e67bf8f398ee 111 _WR=1;
jloreto 0:e67bf8f398ee 112 _bus.write((*data)&0xFF); // write 8bit
jloreto 0:e67bf8f398ee 113 _WR=0;
jloreto 0:e67bf8f398ee 114 _WR=1;
jloreto 0:e67bf8f398ee 115 data++;
jloreto 0:e67bf8f398ee 116 lenght--;
jloreto 0:e67bf8f398ee 117 }
jloreto 0:e67bf8f398ee 118 }
jloreto 0:e67bf8f398ee 119 unsigned short BUS8::rd_gram(bool convert)
jloreto 0:e67bf8f398ee 120 {
jloreto 0:e67bf8f398ee 121 unsigned int r=0;
jloreto 0:e67bf8f398ee 122 _bus.input();
jloreto 0:e67bf8f398ee 123
jloreto 0:e67bf8f398ee 124 _RD = 0;
jloreto 0:e67bf8f398ee 125 _RD = 0; // add wait
jloreto 0:e67bf8f398ee 126 _bus.read(); //dummy read
jloreto 0:e67bf8f398ee 127 _RD = 1;
jloreto 0:e67bf8f398ee 128
jloreto 0:e67bf8f398ee 129 _RD = 0;
jloreto 0:e67bf8f398ee 130 _RD = 0; // add wait
jloreto 0:e67bf8f398ee 131 r |= _bus.read();
jloreto 0:e67bf8f398ee 132 _RD = 1;
jloreto 0:e67bf8f398ee 133 r <<= 8;
jloreto 0:e67bf8f398ee 134
jloreto 0:e67bf8f398ee 135 _RD = 0;
jloreto 0:e67bf8f398ee 136 _RD = 0; // add wait
jloreto 0:e67bf8f398ee 137 r |= _bus.read();
jloreto 0:e67bf8f398ee 138 _RD = 1;
jloreto 0:e67bf8f398ee 139 if(convert)
jloreto 0:e67bf8f398ee 140 {
jloreto 0:e67bf8f398ee 141 r <<= 8;
jloreto 0:e67bf8f398ee 142 _RD = 0;
jloreto 0:e67bf8f398ee 143 // _RD = 0; // add wait
jloreto 0:e67bf8f398ee 144 r |= _bus.read();
jloreto 0:e67bf8f398ee 145 _RD = 1;
jloreto 0:e67bf8f398ee 146 // gram is 18bit/pixel, if you set 16bit/pixel (cmd 3A), during writing the 16bits are expanded to 18bit
jloreto 0:e67bf8f398ee 147 // during reading, you read the raw 18bit gram
jloreto 0:e67bf8f398ee 148 r = RGB24to16((r&0xFF0000)>>16, (r&0xFF00)>>8, r&0xFF);// 18bit pixel padded to 24bits, rrrrrr00_gggggg00_bbbbbb00, converted to 16bit
jloreto 0:e67bf8f398ee 149 }
jloreto 0:e67bf8f398ee 150 _bus.output();
jloreto 0:e67bf8f398ee 151 return (unsigned short)r;
jloreto 0:e67bf8f398ee 152 }
jloreto 0:e67bf8f398ee 153 unsigned int BUS8::rd_reg_data32(unsigned char reg)
jloreto 0:e67bf8f398ee 154 {
jloreto 0:e67bf8f398ee 155 wr_cmd8(reg);
jloreto 0:e67bf8f398ee 156 unsigned int r=0;
jloreto 0:e67bf8f398ee 157 _bus.input();
jloreto 0:e67bf8f398ee 158
jloreto 0:e67bf8f398ee 159 _RD = 0;
jloreto 0:e67bf8f398ee 160 _bus.read(); //dummy read
jloreto 0:e67bf8f398ee 161 _RD = 1;
jloreto 0:e67bf8f398ee 162
jloreto 0:e67bf8f398ee 163 _RD = 0;
jloreto 0:e67bf8f398ee 164 // _RD = 0; // add wait
jloreto 0:e67bf8f398ee 165 r |= (_bus.read()&0xFF);
jloreto 0:e67bf8f398ee 166 r <<= 8;
jloreto 0:e67bf8f398ee 167 _RD = 1;
jloreto 0:e67bf8f398ee 168
jloreto 0:e67bf8f398ee 169 _RD = 0;
jloreto 0:e67bf8f398ee 170 // _RD = 0; // add wait
jloreto 0:e67bf8f398ee 171 r |= (_bus.read()&0xFF);
jloreto 0:e67bf8f398ee 172 r <<= 8;
jloreto 0:e67bf8f398ee 173 _RD = 1;
jloreto 0:e67bf8f398ee 174
jloreto 0:e67bf8f398ee 175 _RD = 0;
jloreto 0:e67bf8f398ee 176 // _RD = 0; // add wait
jloreto 0:e67bf8f398ee 177 r |= (_bus.read()&0xFF);
jloreto 0:e67bf8f398ee 178 r <<= 8;
jloreto 0:e67bf8f398ee 179 _RD = 1;
jloreto 0:e67bf8f398ee 180
jloreto 0:e67bf8f398ee 181 _RD = 0;
jloreto 0:e67bf8f398ee 182 // _RD = 0; // add wait
jloreto 0:e67bf8f398ee 183 r |= (_bus.read()&0xFF);
jloreto 0:e67bf8f398ee 184 _RD = 1;
jloreto 0:e67bf8f398ee 185
jloreto 0:e67bf8f398ee 186 _CS = 1; // force CS HIG to interupt the cmd in case was not supported
jloreto 0:e67bf8f398ee 187 _CS = 0;
jloreto 0:e67bf8f398ee 188 _bus.output();
jloreto 0:e67bf8f398ee 189 return r;
jloreto 0:e67bf8f398ee 190 }
jloreto 0:e67bf8f398ee 191 // in Par mode EXTC regs (0xB0-0xFF) can be directly read
jloreto 0:e67bf8f398ee 192 unsigned int BUS8::rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd)
jloreto 0:e67bf8f398ee 193 {
jloreto 0:e67bf8f398ee 194 return rd_reg_data32(reg);
jloreto 0:e67bf8f398ee 195 }
jloreto 0:e67bf8f398ee 196 // ILI932x specific
jloreto 0:e67bf8f398ee 197 void BUS8::dummyread()
jloreto 0:e67bf8f398ee 198 {
jloreto 0:e67bf8f398ee 199 _bus.input();
jloreto 0:e67bf8f398ee 200 _RD=0;
jloreto 0:e67bf8f398ee 201 _RD=0; // add wait
jloreto 0:e67bf8f398ee 202 _bus.read(); // dummy read
jloreto 0:e67bf8f398ee 203 _RD=1;
jloreto 0:e67bf8f398ee 204 // _bus.output();
jloreto 0:e67bf8f398ee 205 }
jloreto 0:e67bf8f398ee 206 // ILI932x specific
jloreto 0:e67bf8f398ee 207 void BUS8::reg_select(unsigned char reg, bool forread)
jloreto 0:e67bf8f398ee 208 {
jloreto 0:e67bf8f398ee 209 _DC = 0;
jloreto 0:e67bf8f398ee 210 _bus.write(0); // write MSB
jloreto 0:e67bf8f398ee 211 _WR=0;
jloreto 0:e67bf8f398ee 212 _WR=1;
jloreto 0:e67bf8f398ee 213 _bus.write(reg); // write LSB
jloreto 0:e67bf8f398ee 214 _WR=0;
jloreto 0:e67bf8f398ee 215 _WR=1;
jloreto 0:e67bf8f398ee 216 _DC = 1; // 1=data next
jloreto 0:e67bf8f398ee 217 }
jloreto 0:e67bf8f398ee 218 // ILI932x specific
jloreto 0:e67bf8f398ee 219 void BUS8::reg_write(unsigned char reg, unsigned short data)
jloreto 0:e67bf8f398ee 220 {
jloreto 0:e67bf8f398ee 221 _DC = 0;
jloreto 0:e67bf8f398ee 222 _bus.write(0); // write MSB
jloreto 0:e67bf8f398ee 223 _WR=0;
jloreto 0:e67bf8f398ee 224 _WR=1;
jloreto 0:e67bf8f398ee 225 _bus.write(reg); // write MSB
jloreto 0:e67bf8f398ee 226 _WR=0;
jloreto 0:e67bf8f398ee 227 _WR=1;
jloreto 0:e67bf8f398ee 228 _DC = 1;
jloreto 0:e67bf8f398ee 229 _bus.write(data>>8);
jloreto 0:e67bf8f398ee 230 _WR=0;
jloreto 0:e67bf8f398ee 231 _WR=1;
jloreto 0:e67bf8f398ee 232 _bus.write(data&0xFF);
jloreto 0:e67bf8f398ee 233 _WR=0;
jloreto 0:e67bf8f398ee 234 _WR=1;
jloreto 0:e67bf8f398ee 235 }
jloreto 0:e67bf8f398ee 236 // ILI932x specific
jloreto 0:e67bf8f398ee 237 unsigned short BUS8::reg_read(unsigned char reg)
jloreto 0:e67bf8f398ee 238 {
jloreto 0:e67bf8f398ee 239 unsigned short r=0;
jloreto 0:e67bf8f398ee 240 _DC = 0;
jloreto 0:e67bf8f398ee 241 _bus.write(0);
jloreto 0:e67bf8f398ee 242 _WR=0;
jloreto 0:e67bf8f398ee 243 _WR=1;
jloreto 0:e67bf8f398ee 244 _bus.write(reg);
jloreto 0:e67bf8f398ee 245 _WR=0;
jloreto 0:e67bf8f398ee 246 _WR=1;
jloreto 0:e67bf8f398ee 247 _DC = 1;
jloreto 0:e67bf8f398ee 248 _bus.input();
jloreto 0:e67bf8f398ee 249 _RD=0;
jloreto 0:e67bf8f398ee 250 r |= _bus.read(); // read 8bit
jloreto 0:e67bf8f398ee 251 _RD=1;
jloreto 0:e67bf8f398ee 252 r <<= 8;
jloreto 0:e67bf8f398ee 253 _RD=0;
jloreto 0:e67bf8f398ee 254 r |= _bus.read(); // read 8bit
jloreto 0:e67bf8f398ee 255 _RD=1;
jloreto 0:e67bf8f398ee 256 _bus.output();
jloreto 0:e67bf8f398ee 257
jloreto 0:e67bf8f398ee 258 return r;
jloreto 0:e67bf8f398ee 259 }
jloreto 0:e67bf8f398ee 260 void BUS8::hw_reset()
jloreto 0:e67bf8f398ee 261 {
jloreto 0:e67bf8f398ee 262 wait_ms(15);
jloreto 0:e67bf8f398ee 263 _DC = 1;
jloreto 0:e67bf8f398ee 264 _CS = 1;
jloreto 0:e67bf8f398ee 265 _WR = 1;
jloreto 0:e67bf8f398ee 266 _RD = 1;
jloreto 0:e67bf8f398ee 267 _reset = 0; // display reset
jloreto 0:e67bf8f398ee 268 wait_ms(2);
jloreto 0:e67bf8f398ee 269 _reset = 1; // end reset
jloreto 0:e67bf8f398ee 270 wait_ms(100);
jloreto 0:e67bf8f398ee 271 }
jloreto 0:e67bf8f398ee 272 void BUS8::BusEnable(bool enable)
jloreto 0:e67bf8f398ee 273 {
jloreto 0:e67bf8f398ee 274 _CS = enable ? 0:1;
jloreto 0:e67bf8f398ee 275 }