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: testUniGraphic_150217 maze_TFT_MMA8451Q TFT_test_frdm-kl25z TFT_test_NUCLEO-F411RE ... more
Protocols/BUS8.h
- Committer:
- Geremia
- Date:
- 2015-03-31
- Revision:
- 21:ae0a4eedfc90
File content as of revision 21:ae0a4eedfc90:
#ifndef BUS8_H #define BUS8_H #include "mbed.h" #include "Protocols.h" //#include "GraphicsDisplay.h" /** Parallel 8bit interface */ class BUS8 : public Protocols { public: /** Create a BUS8 display interface with scattered pins and 5 control pins * * @param buspins array of PinName to group as Bus * , i.e PinName buspins[8]={PC_0,PC_1,PC_2,PC_3,D9,D8,D7,D6}; * @param CS pin connected to CS of display * @param reset pin connected to RESET of display * @param DC pin connected to data/command of display * @param WR pin connected to SDI of display * @param RD pin connected to RS of display */ BUS8(PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD); protected: /** Send 8bit command to display controller * * @param cmd: byte to send * */ virtual void wr_cmd8(unsigned char cmd); /** Send 8bit data to display controller * * @param data: byte to send * */ virtual void wr_data8(unsigned char data); /** Send 2x8bit command to display controller * * @param cmd: halfword to send * */ virtual void wr_cmd16(unsigned short cmd); /** Send 2x8bit data to display controller * * @param data: halfword to send * */ virtual void wr_data16(unsigned short data); /** Send 16bit pixeldata to display controller * * @param data: halfword to send * */ virtual void wr_gram(unsigned short data); /** Send same 16bit pixeldata to display controller multiple times * * @param data: halfword to send * @param count: how many * */ virtual void wr_gram(unsigned short data, unsigned int count); /** Send array of pixeldata shorts to display controller * * @param data: unsigned short pixeldata array * @param lenght: lenght (in shorts) * */ virtual void wr_grambuf(unsigned short* data, unsigned int lenght); /** Read 16bit pixeldata from display controller (with dummy cycle) * * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit * @returns 16bit color */ virtual unsigned short rd_gram(bool convert); /** Read 4x8bit register data (with dummy cycle) * @param reg the register to read * @returns data as uint * */ virtual unsigned int rd_reg_data32(unsigned char reg); /** Read 3x8bit ExtendedCommands register data * @param reg the register to read * @returns data as uint * @note EXTC regs (0xB0 to 0xFF) are read/write registers, for Parallel mode directly accessible in both directions */ virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd); /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent * for PAR protocols: a signle RD bit toggle * for SPI8: 8clocks * for SPI16: 16 clocks */ virtual void dummyread (); /** ILI932x specific, select register for a successive write or read * * @param reg register to be selected * @param forread false = a write next (default), true = a read next * @note forread only used by SPI protocols */ virtual void reg_select(unsigned char reg, bool forread =false); /** ILI932x specific, write register with data * * @param reg register to write * @param data 16bit data */ virtual void reg_write(unsigned char reg, unsigned short data); /** ILI932x specific, read register * * @param reg register to be read * @returns 16bit register value */ virtual unsigned short reg_read(unsigned char reg); /** HW reset sequence (without display init commands) */ virtual void hw_reset(); /** Set ChipSelect high or low * @param enable 0/1 */ virtual void BusEnable(bool enable); private: BusInOut _bus; DigitalOut _CS; DigitalOut _reset; DigitalOut _DC; DigitalOut _WR; DigitalOut _RD; }; #endif