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@2:713844a55c4e, 2015-02-13 (annotated)

Committer:
Geremia
Date:
Fri Feb 13 23:17:55 2015 +0000
Revision:
2:713844a55c4e
Parent:
1:ff019d22b275
Child:
3:48f3282c2be8
Initial TFT implementation, needs to add read cmds

Who changed what in which revision?

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