GraphicsDisplay / UniGraphic

Basically i glued Peter Drescher and Simon Ford libs in a GraphicsDisplay class, then derived TFT or LCD class (which inherits Protocols class), then the most derived ones (Inits), which are per-display and are the only part needed to be adapted to diff hw.

Dependents:   testUniGraphic_150217 maze_TFT_MMA8451Q TFT_test_frdm-kl25z TFT_test_NUCLEO-F411RE ... more

Inits/IST3020.cpp@4:12ba0ecc2c1f, 2015-02-15 (annotated)

Committer:
Geremia
Date:
Sun Feb 15 20:06:07 2015 +0000
Revision:
4:12ba0ecc2c1f
Parent:
3:48f3282c2be8
Child:
9:1749ae993cfe
Added PAR16, separated 16bit writes for cmd parameters and pixeldata

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 4:12ba0ecc2c1f 1 /* mbed UniGraphic library - Device specific 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 0:75ec1b3cde17 5 #include "Protocols.h"
Geremia 0:75ec1b3cde17 6 #include "IST3020.h"
Geremia 0:75ec1b3cde17 7
Geremia 3:48f3282c2be8 8 /*this is a quite standard config, should be compatible with ST7565, except bigger screen and diff resistor ratio value*/
Geremia 3:48f3282c2be8 9
Geremia 0:75ec1b3cde17 10 //////////////////////////////////////////////////////////////////////////////////
Geremia 0:75ec1b3cde17 11 // display settings ///////////////////////////////////////////////////////
Geremia 0:75ec1b3cde17 12 /////////////////////////////////////////////////////////////////////////
Geremia 0:75ec1b3cde17 13 #define IC_X_SEGS 256 // IST3020 SEG has range 0-255 (255-0 if ADC=1), check your datasheet, important for the orientation
Geremia 0:75ec1b3cde17 14 #define IC_Y_COMS 64 // IST3020 COM has range 0-63 (63-0 if SHL=1), check your datasheet, important for the orientation
Geremia 0:75ec1b3cde17 15 #define LCDSIZE_X 192 // display X pixels, IST3020 is advertised as 224x65 but display size could be smaller
Geremia 0:75ec1b3cde17 16 #define LCDSIZE_Y 64 // display Y pixels, the 65th is for accessing "icons"
Geremia 0:75ec1b3cde17 17
Geremia 0:75ec1b3cde17 18
Geremia 0:75ec1b3cde17 19
Geremia 0:75ec1b3cde17 20 IST3020::IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name)
Geremia 0:75ec1b3cde17 21 : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
Geremia 0:75ec1b3cde17 22 {
Geremia 0:75ec1b3cde17 23 hw_reset();
Geremia 0:75ec1b3cde17 24 BusEnable(true);
Geremia 2:713844a55c4e 25 init();
Geremia 2:713844a55c4e 26 cls();
Geremia 2:713844a55c4e 27 set_orientation(1);
Geremia 2:713844a55c4e 28 locate(0,0);
Geremia 0:75ec1b3cde17 29 }
Geremia 1:ff019d22b275 30 IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
Geremia 1:ff019d22b275 31 : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
Geremia 0:75ec1b3cde17 32 {
Geremia 0:75ec1b3cde17 33 hw_reset();
Geremia 2:713844a55c4e 34 BusEnable(true);
Geremia 2:713844a55c4e 35 init();
Geremia 2:713844a55c4e 36 cls();
Geremia 2:713844a55c4e 37 set_orientation(1);
Geremia 2:713844a55c4e 38 locate(0,0);
Geremia 0:75ec1b3cde17 39 }
Geremia 0:75ec1b3cde17 40 // reset and init the lcd controller
Geremia 3:48f3282c2be8 41 // init sequence is manufacturer specific
Geremia 0:75ec1b3cde17 42 void IST3020::init()
Geremia 0:75ec1b3cde17 43 {
Geremia 0:75ec1b3cde17 44 /* Start Initial Sequence ----------------------------------------------------*/
Geremia 0:75ec1b3cde17 45
Geremia 1:ff019d22b275 46 wr_cmd8(0xE2); // sw reset
Geremia 0:75ec1b3cde17 47 wait_ms(10);
Geremia 0:75ec1b3cde17 48
Geremia 1:ff019d22b275 49 wr_cmd8(0xAE); // display off
Geremia 1:ff019d22b275 50 wr_cmd8(0xAB); // built-in OSC on
Geremia 1:ff019d22b275 51 wr_cmd8(0xA2); // bias voltage (1/9)
Geremia 1:ff019d22b275 52 // wr_cmd8(0xA3); // bias voltage (1/7)
Geremia 0:75ec1b3cde17 53
Geremia 1:ff019d22b275 54 wr_cmd8(0xA0); // ADC select seg0-seg223
Geremia 1:ff019d22b275 55 //wr_cmd8(0xA1); // ADC select seg223-seg0
Geremia 1:ff019d22b275 56 wr_cmd8(0xC8); // SHL select com63-com0
Geremia 1:ff019d22b275 57 //wr_cmd8(0xC0); // SHL select com0-com63
Geremia 0:75ec1b3cde17 58
Geremia 1:ff019d22b275 59 wr_cmd8(0x2C); // Internal Voltage Converter ON
Geremia 0:75ec1b3cde17 60 wait_ms(10);
Geremia 1:ff019d22b275 61 wr_cmd8(0x2E); // Internal Voltage Regulator ON
Geremia 0:75ec1b3cde17 62 wait_ms(10);
Geremia 1:ff019d22b275 63 wr_cmd8(0x2F); // Internal Voltage Follower ON
Geremia 0:75ec1b3cde17 64 wait_ms(10);
Geremia 1:ff019d22b275 65 wr_cmd8(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps
Geremia 3:48f3282c2be8 66 set_contrast(46);
Geremia 1:ff019d22b275 67 //wr_cmd8(0x81); // set contrast (reference voltage register set)
Geremia 1:ff019d22b275 68 //wr_cmd8(0x20); // contrast 00-3F default 20
Geremia 0:75ec1b3cde17 69
Geremia 1:ff019d22b275 70 wr_cmd8(0xA4); // LCD display ram (EntireDisplayOn disable)
Geremia 1:ff019d22b275 71 //wr_cmd8(0x70); // External Capacitors Discharge function enable (should be enabled by default)
Geremia 1:ff019d22b275 72 //wr_cmd8(0x77); // External Capacitors Discharge function disable
Geremia 1:ff019d22b275 73 wr_cmd8(0x40); // start line = 0
Geremia 1:ff019d22b275 74 wr_cmd8(0xA6); // display normal (1 = illuminated)
Geremia 1:ff019d22b275 75 wr_cmd8(0xAF); // display ON
Geremia 0:75ec1b3cde17 76
Geremia 0:75ec1b3cde17 77 }