Karl Zweimüller
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 
GraphicsDisplay
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/
Diff: Inits/IST3020.cpp
- Revision:
- 1:ff019d22b275
- Parent:
- 0:75ec1b3cde17
- Child:
- 2:713844a55c4e
diff -r 75ec1b3cde17 -r ff019d22b275 Inits/IST3020.cpp
--- a/Inits/IST3020.cpp Thu Feb 12 22:22:47 2015 +0000
+++ b/Inits/IST3020.cpp Fri Feb 13 15:25:10 2015 +0000
@@ -18,8 +18,8 @@
BusEnable(true);
init();
}
-IST3020::IST3020(proto_t displayproto, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
- : LCD(displayproto, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
+IST3020::IST3020(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const char *name)
+ : LCD(displayproto, Hz, mosi, miso, sclk, CS, reset, DC, LCDSIZE_X, LCDSIZE_Y, IC_X_SEGS, IC_Y_COMS, name)
{
hw_reset();
init();
@@ -29,35 +29,35 @@
{
/* Start Initial Sequence ----------------------------------------------------*/
- wr_cmd(0xE2); // sw reset
+ wr_cmd8(0xE2); // sw reset
wait_ms(10);
- wr_cmd(0xAE); // display off
- wr_cmd(0xAB); // built-in OSC on
- wr_cmd(0xA2); // bias voltage (1/9)
- // wr_cmd(0xA3); // bias voltage (1/7)
+ wr_cmd8(0xAE); // display off
+ wr_cmd8(0xAB); // built-in OSC on
+ wr_cmd8(0xA2); // bias voltage (1/9)
+ // wr_cmd8(0xA3); // bias voltage (1/7)
- wr_cmd(0xA0); // ADC select seg0-seg223
- //wr_cmd(0xA1); // ADC select seg223-seg0
- wr_cmd(0xC8); // SHL select com63-com0
- //wr_cmd(0xC0); // SHL select com0-com63
+ wr_cmd8(0xA0); // ADC select seg0-seg223
+ //wr_cmd8(0xA1); // ADC select seg223-seg0
+ wr_cmd8(0xC8); // SHL select com63-com0
+ //wr_cmd8(0xC0); // SHL select com0-com63
- wr_cmd(0x2C); // Internal Voltage Converter ON
+ wr_cmd8(0x2C); // Internal Voltage Converter ON
wait_ms(10);
- wr_cmd(0x2E); // Internal Voltage Regulator ON
+ wr_cmd8(0x2E); // Internal Voltage Regulator ON
wait_ms(10);
- wr_cmd(0x2F); // Internal Voltage Follower ON
+ wr_cmd8(0x2F); // Internal Voltage Follower ON
wait_ms(10);
- wr_cmd(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps
+ wr_cmd8(0x20); // Regulor_Resistor_Select resistor ratio 20-27 20=4.5(default) 27=8.0, 0.5 steps
set_contrast(48);
- //wr_cmd(0x81); // set contrast (reference voltage register set)
- //wr_cmd(0x20); // contrast 00-3F default 20
+ //wr_cmd8(0x81); // set contrast (reference voltage register set)
+ //wr_cmd8(0x20); // contrast 00-3F default 20
- wr_cmd(0xA4); // LCD display ram (EntireDisplayOn disable)
- //wr_cmd(0x70); // External Capacitors Discharge function enable (should be enabled by default)
- //wr_cmd(0x77); // External Capacitors Discharge function disable
- wr_cmd(0x40); // start line = 0
- wr_cmd(0xA6); // display normal (1 = illuminated)
- wr_cmd(0xAF); // display ON
+ wr_cmd8(0xA4); // LCD display ram (EntireDisplayOn disable)
+ //wr_cmd8(0x70); // External Capacitors Discharge function enable (should be enabled by default)
+ //wr_cmd8(0x77); // External Capacitors Discharge function disable
+ wr_cmd8(0x40); // start line = 0
+ wr_cmd8(0xA6); // display normal (1 = illuminated)
+ wr_cmd8(0xAF); // display ON
}
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