Duncan Wood / 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:   Brew

Inits/IST3020.cpp@34:67b3634507da, 2022-01-07 (annotated)

Committer:
dswood
Date:
Fri Jan 07 12:05:27 2022 +0000
Revision:
34:67b3634507da
Parent:
18:ffa58f1a680a 
The libraries used would not output %.  I tried escaping it but nothing worked. So I changed the & in the font and used that.  Not cleaver I know.  I don't recommend this to anyone.

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 18:ffa58f1a680a 8 /*this is a quite standard config, similar to 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
dreschpe 9:1749ae993cfe 15 // put in constructor
dreschpe 9:1749ae993cfe 16 //#define LCDSIZE_X 192 // display X pixels, IST3020 is advertised as 224x65 but display size could be smaller
dreschpe 9:1749ae993cfe 17 //#define LCDSIZE_Y 64 // display Y pixels, the 65th is for accessing "icons"
Geremia 0:75ec1b3cde17 18
Geremia 0:75ec1b3cde17 19
Geremia 0:75ec1b3cde17 20
dreschpe 9:1749ae993cfe 21 IST3020::IST3020(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const char *name, unsigned int LCDSIZE_X, unsigned int LCDSIZE_Y)
Geremia 0:75ec1b3cde17 22 : LCD(displayproto, port, CS, reset, DC, WR, RD, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
Geremia 0:75ec1b3cde17 23 {
Geremia 0:75ec1b3cde17 24 hw_reset();
Geremia 0:75ec1b3cde17 25 BusEnable(true);
Geremia 2:713844a55c4e 26 init();
Geremia 2:713844a55c4e 27 cls();
Geremia 2:713844a55c4e 28 set_orientation(1);
Geremia 2:713844a55c4e 29 locate(0,0);
Geremia 0:75ec1b3cde17 30 }
dreschpe 9:1749ae993cfe 31 IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name, unsigned int LCDSIZE_X, unsigned int LCDSIZE_Y)
Geremia 1:ff019d22b275 32 : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
Geremia 0:75ec1b3cde17 33 {
Geremia 0:75ec1b3cde17 34 hw_reset();
Geremia 2:713844a55c4e 35 BusEnable(true);
Geremia 2:713844a55c4e 36 init();
Geremia 2:713844a55c4e 37 cls();
Geremia 2:713844a55c4e 38 set_orientation(1);
Geremia 2:713844a55c4e 39 locate(0,0);
Geremia 0:75ec1b3cde17 40 }
Geremia 0:75ec1b3cde17 41 // reset and init the lcd controller
Geremia 3:48f3282c2be8 42 // init sequence is manufacturer specific
Geremia 0:75ec1b3cde17 43 void IST3020::init()
Geremia 0:75ec1b3cde17 44 {
Geremia 0:75ec1b3cde17 45 /* Start Initial Sequence ----------------------------------------------------*/
Geremia 0:75ec1b3cde17 46
Geremia 1:ff019d22b275 47 wr_cmd8(0xE2); // sw reset
Geremia 0:75ec1b3cde17 48 wait_ms(10);
Geremia 0:75ec1b3cde17 49
Geremia 1:ff019d22b275 50 wr_cmd8(0xAE); // display off
Geremia 1:ff019d22b275 51 wr_cmd8(0xAB); // built-in OSC on
Geremia 1:ff019d22b275 52 wr_cmd8(0xA2); // bias voltage (1/9)
Geremia 1:ff019d22b275 53 // wr_cmd8(0xA3); // bias voltage (1/7)
Geremia 0:75ec1b3cde17 54
Geremia 1:ff019d22b275 55 wr_cmd8(0xA0); // ADC select seg0-seg223
Geremia 1:ff019d22b275 56 //wr_cmd8(0xA1); // ADC select seg223-seg0
Geremia 1:ff019d22b275 57 wr_cmd8(0xC8); // SHL select com63-com0
Geremia 1:ff019d22b275 58 //wr_cmd8(0xC0); // SHL select com0-com63
Geremia 0:75ec1b3cde17 59
Geremia 1:ff019d22b275 60 wr_cmd8(0x2C); // Internal Voltage Converter ON
Geremia 0:75ec1b3cde17 61 wait_ms(10);
Geremia 1:ff019d22b275 62 wr_cmd8(0x2E); // Internal Voltage Regulator ON
Geremia 0:75ec1b3cde17 63 wait_ms(10);
Geremia 1:ff019d22b275 64 wr_cmd8(0x2F); // Internal Voltage Follower ON
Geremia 0:75ec1b3cde17 65 wait_ms(10);
Geremia 1:ff019d22b275 66 wr_cmd8(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps
Geremia 3:48f3282c2be8 67 set_contrast(46);
Geremia 1:ff019d22b275 68 //wr_cmd8(0x81); // set contrast (reference voltage register set)
Geremia 1:ff019d22b275 69 //wr_cmd8(0x20); // contrast 00-3F default 20
Geremia 0:75ec1b3cde17 70
Geremia 1:ff019d22b275 71 wr_cmd8(0xA4); // LCD display ram (EntireDisplayOn disable)
Geremia 1:ff019d22b275 72 //wr_cmd8(0x70); // External Capacitors Discharge function enable (should be enabled by default)
Geremia 1:ff019d22b275 73 //wr_cmd8(0x77); // External Capacitors Discharge function disable
Geremia 1:ff019d22b275 74 wr_cmd8(0x40); // start line = 0
Geremia 1:ff019d22b275 75 wr_cmd8(0xA6); // display normal (1 = illuminated)
Geremia 1:ff019d22b275 76 wr_cmd8(0xAF); // display ON
Geremia 0:75ec1b3cde17 77
Geremia 0:75ec1b3cde17 78 }