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
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: Protocols/PAR16.cpp
- Revision:
- 5:b222a9461d6b
- Parent:
- 4:12ba0ecc2c1f
- Child:
- 7:bb0383b91104
diff -r 12ba0ecc2c1f -r b222a9461d6b Protocols/PAR16.cpp --- a/Protocols/PAR16.cpp Sun Feb 15 20:06:07 2015 +0000 +++ b/Protocols/PAR16.cpp Mon Feb 16 00:52:24 2015 +0000 @@ -150,7 +150,73 @@ _CS = 1; #endif } - +unsigned int PAR16::rd_data32_wdummy() +{ +#ifdef USE_CS + _CS = 0; +#endif + unsigned int r=0; + _DC = 1; // 1=data + _port.input(); + + _RD = 0; + _port.read(); //dummy read + _RD = 1; + + _RD = 0; +// _RD = 0; // add wait + r |= (_port.read()&0xFF); + r <<= 8; + _RD = 1; + + _RD = 0; +// _RD = 0; // add wait + r |= (_port.read()&0xFF); + r <<= 8; + _RD = 1; + + _RD = 0; +// _RD = 0; // add wait + r |= (_port.read()&0xFF); + r <<= 8; + _RD = 1; + + _RD = 0; +// _RD = 0; // add wait + r |= (_port.read()&0xFF); + _RD = 1; + + _CS = 1; // force CS HIG to interupt the cmd in case was not supported +#ifndef USE_CS //if CS is not used, force fixed LOW again + _CS = 0; +#endif + _port.output(); + return r; +} +unsigned short PAR16::rd_gram() +{ +#ifdef USE_CS + _CS = 0; +#endif + unsigned short r=0; + _DC = 1; // 1=data + _port.input(); + + _RD = 0; + _port.read(); //dummy read + _RD = 1; + + _RD = 0; +// _RD = 0; // add wait + r |= _port.read(); + _RD = 1; + +#ifdef USE_CS + _CS = 1; +#endif + _port.output(); + return r; +} void PAR16::hw_reset() { wait_ms(15);