PAR8.h

00001 #ifndef PAR8_H
00002 #define PAR8_H
00003 
00004 #include "mbed.h"
00005 #include "Protocols.h "
00006 //#include "GraphicsDisplay.h"
00007 
00008 /** Parallel 8bit interface
00009 */
00010 class PAR8 : public Protocols
00011 {
00012  public:
00013 
00014     /** Create a PAR8 display interface with a GPIO port and 5 control pins
00015     *
00016     * @param port GPIO port to use
00017     * @param CS pin connected to CS of display
00018     * @param reset pin connected to RESET of display
00019     * @param DC pin connected to data/command of display
00020     * @param WR pin connected to SDI of display
00021     * @param RD pin connected to RS of display 
00022     */ 
00023     PAR8(PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD);
00024 
00025 protected:
00026   
00027     /** Send 8bit command to display controller 
00028     *
00029     * @param cmd: byte to send  
00030     *
00031     */   
00032     virtual void wr_cmd8(unsigned char cmd);
00033     
00034     /** Send 8bit data to display controller 
00035     *
00036     * @param data: byte to send   
00037     *
00038     */   
00039     virtual void wr_data8(unsigned char data);
00040     
00041     /** Send 2x8bit command to display controller 
00042     *
00043     * @param cmd: halfword to send  
00044     *
00045     */   
00046     virtual void wr_cmd16(unsigned short cmd);
00047     
00048     /** Send 2x8bit data to display controller 
00049     *
00050     * @param data: halfword to send   
00051     *
00052     */   
00053     virtual void wr_data16(unsigned short data);
00054     
00055     /** Send 16bit pixeldata to display controller 
00056     *
00057     * @param data: halfword to send   
00058     *
00059     */   
00060     virtual void wr_gram(unsigned short data);
00061     
00062     /** Send same 16bit pixeldata to display controller multiple times
00063     *
00064     * @param data: halfword to send
00065     * @param count: how many
00066     *
00067     */   
00068     virtual void wr_gram(unsigned short data, unsigned int count);
00069     
00070     /** Send array of pixeldata shorts to display controller
00071     *
00072     * @param data: unsigned short pixeldata array
00073     * @param lenght: lenght (in shorts)
00074     *
00075     */   
00076     virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
00077     
00078     /** Read 16bit pixeldata from display controller (with dummy cycle)
00079     *
00080     * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
00081     * @returns 16bit color
00082     */ 
00083     virtual unsigned short rd_gram(bool convert);
00084     
00085     /** Read 4x8bit register data (with dummy cycle)
00086     * @param reg the register to read
00087     * @returns data as uint
00088     * 
00089     */ 
00090     virtual unsigned int rd_reg_data32(unsigned char reg);
00091     
00092     /** Read 3x8bit ExtendedCommands register data
00093     * @param reg the register to read
00094     * @returns data as uint
00095     * @note EXTC regs (0xB0 to 0xFF) are read/write registers, for Parallel mode directly accessible in both directions
00096     */ 
00097     virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd);
00098     
00099     /** HW reset sequence (without display init commands)   
00100     */
00101     virtual void hw_reset();
00102     
00103     /** Set ChipSelect high or low
00104     * @param enable 0/1   
00105     */
00106     virtual void BusEnable(bool enable);
00107   
00108    
00109 
00110 private:
00111 
00112     PortInOut _port;
00113     DigitalOut _CS; 
00114     DigitalOut _reset;
00115     DigitalOut _DC;
00116     DigitalOut _WR;
00117     DigitalOut _RD;
00118   
00119 };
00120 #endif