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/SPI8.cpp
- Revision:
- 1:ff019d22b275
- Parent:
- 0:75ec1b3cde17
- Child:
- 4:12ba0ecc2c1f
--- a/Protocols/SPI8.cpp Thu Feb 12 22:22:47 2015 +0000 +++ b/Protocols/SPI8.cpp Fri Feb 13 15:25:10 2015 +0000 @@ -2,7 +2,7 @@ //#define USE_CS -SPI8::SPI8(PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC) +SPI8::SPI8(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC) : _CS(CS), _spi(mosi, miso, sclk), _reset(reset), _DC(DC) { _reset = 1; @@ -10,11 +10,11 @@ _CS=1; _spi.format(8,0); // 8 bit spi mode 0 // _spi.frequency(12000000); // 10 Mhz SPI clock, 12mhz for F411 - _spi.frequency(10000000); + _spi.frequency(Hz); hw_reset(); } -void SPI8::wr_cmd(unsigned char cmd) +void SPI8::wr_cmd8(unsigned char cmd) { #ifdef USE_CS _CS = 0; @@ -25,18 +25,18 @@ _CS = 1; #endif } -void SPI8::wr_data8(unsigned char data8) +void SPI8::wr_data8(unsigned char data) { #ifdef USE_CS _CS = 0; #endif _DC.write(1); // 1=data - _spi.write(data8); // write 8bit + _spi.write(data); // write 8bit #ifdef USE_CS _CS = 1; #endif } -void SPI8::wr_data8(unsigned char data8, unsigned int count) +void SPI8::wr_data8(unsigned char data, unsigned int count) { #ifdef USE_CS _CS = 0; @@ -44,14 +44,14 @@ _DC.write(1); // 1=data while(count) { - _spi.write(data8); // write 8bit + _spi.write(data); // write 8bit count--; } #ifdef USE_CS _CS = 1; #endif } -void SPI8::wr_data8buf(unsigned char* data8, unsigned int lenght) +void SPI8::wr_data8buf(unsigned char* data, unsigned int lenght) { #ifdef USE_CS _CS = 0; @@ -59,8 +59,77 @@ _DC.write(1); // 1=data while(lenght) { - _spi.write(*data8++); // write 8bit - // data8++; + _spi.write(*data++); // write 8bit + // data++; + lenght--; + } +#ifdef USE_CS + _CS = 1; +#endif +} +void SPI8::wr_cmd16(unsigned short cmd) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC.write(0); // 0=cmd + _spi.write(cmd>>8); // write 8bit + _spi.write(cmd&0xFF); // write 8bit +#ifdef USE_CS + _CS = 1; +#endif +} +void SPI8::wr_data16(unsigned short data) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC.write(1); // 1=data + _spi.write(data>>8); // write 8bit + _spi.write(data&0xFF); // write 8bit +#ifdef USE_CS + _CS = 1; +#endif +} +void SPI8::wr_data16(unsigned short data, unsigned int count) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC.write(1); // 1=data + if((data>>8)==(data&0xFF)) + { + count<<=1; + while(count) + { + _spi.write(data); // write 8bit + count--; + } + } + else + { + while(count) + { + _spi.write(data>>8); // write 8bit + _spi.write(data&0xFF); // write 8bit + count--; + } + } +#ifdef USE_CS + _CS = 1; +#endif +} +void SPI8::wr_data16buf(unsigned short* data, unsigned int lenght) +{ +#ifdef USE_CS + _CS = 0; +#endif + _DC.write(1); // 1=data + while(lenght) + { + _spi.write((*data)>>8); // write 8bit + _spi.write((*data)&0xFF); // write 8bit + data++; lenght--; } #ifdef USE_CS