Satyan Raj / UniGraphic

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of UniGraphic by GraphicsDisplay

Protocols/BUS8.h@23:70790fa6e0ca, 2015-09-21 (annotated)

Committer:
satyanraj
Date:
Mon Sep 21 15:48:50 2015 +0000
Revision:
23:70790fa6e0ca
Parent:
21:ae0a4eedfc90 
test commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 21:ae0a4eedfc90 1 #ifndef BUS8_H
Geremia 21:ae0a4eedfc90 2 #define BUS8_H
Geremia 21:ae0a4eedfc90 3
Geremia 21:ae0a4eedfc90 4 #include "mbed.h"
Geremia 21:ae0a4eedfc90 5 #include "Protocols.h"
Geremia 21:ae0a4eedfc90 6 //#include "GraphicsDisplay.h"
Geremia 21:ae0a4eedfc90 7
Geremia 21:ae0a4eedfc90 8 /** Parallel 8bit interface
Geremia 21:ae0a4eedfc90 9 */
Geremia 21:ae0a4eedfc90 10 class BUS8 : public Protocols
Geremia 21:ae0a4eedfc90 11 {
Geremia 21:ae0a4eedfc90 12 public:
Geremia 21:ae0a4eedfc90 13
Geremia 21:ae0a4eedfc90 14 /** Create a BUS8 display interface with scattered pins and 5 control pins
Geremia 21:ae0a4eedfc90 15 *
Geremia 21:ae0a4eedfc90 16 * @param buspins array of PinName to group as Bus
Geremia 21:ae0a4eedfc90 17 * , i.e PinName buspins[8]={PC_0,PC_1,PC_2,PC_3,D9,D8,D7,D6};
Geremia 21:ae0a4eedfc90 18 * @param CS pin connected to CS of display
Geremia 21:ae0a4eedfc90 19 * @param reset pin connected to RESET of display
Geremia 21:ae0a4eedfc90 20 * @param DC pin connected to data/command of display
Geremia 21:ae0a4eedfc90 21 * @param WR pin connected to SDI of display
Geremia 21:ae0a4eedfc90 22 * @param RD pin connected to RS of display
Geremia 21:ae0a4eedfc90 23 */
Geremia 21:ae0a4eedfc90 24 BUS8(PinName* buspins, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD);
Geremia 21:ae0a4eedfc90 25
Geremia 21:ae0a4eedfc90 26 protected:
Geremia 21:ae0a4eedfc90 27
Geremia 21:ae0a4eedfc90 28 /** Send 8bit command to display controller
Geremia 21:ae0a4eedfc90 29 *
Geremia 21:ae0a4eedfc90 30 * @param cmd: byte to send
Geremia 21:ae0a4eedfc90 31 *
Geremia 21:ae0a4eedfc90 32 */
Geremia 21:ae0a4eedfc90 33 virtual void wr_cmd8(unsigned char cmd);
Geremia 21:ae0a4eedfc90 34
Geremia 21:ae0a4eedfc90 35 /** Send 8bit data to display controller
Geremia 21:ae0a4eedfc90 36 *
Geremia 21:ae0a4eedfc90 37 * @param data: byte to send
Geremia 21:ae0a4eedfc90 38 *
Geremia 21:ae0a4eedfc90 39 */
Geremia 21:ae0a4eedfc90 40 virtual void wr_data8(unsigned char data);
Geremia 21:ae0a4eedfc90 41
Geremia 21:ae0a4eedfc90 42 /** Send 2x8bit command to display controller
Geremia 21:ae0a4eedfc90 43 *
Geremia 21:ae0a4eedfc90 44 * @param cmd: halfword to send
Geremia 21:ae0a4eedfc90 45 *
Geremia 21:ae0a4eedfc90 46 */
Geremia 21:ae0a4eedfc90 47 virtual void wr_cmd16(unsigned short cmd);
Geremia 21:ae0a4eedfc90 48
Geremia 21:ae0a4eedfc90 49 /** Send 2x8bit data to display controller
Geremia 21:ae0a4eedfc90 50 *
Geremia 21:ae0a4eedfc90 51 * @param data: halfword to send
Geremia 21:ae0a4eedfc90 52 *
Geremia 21:ae0a4eedfc90 53 */
Geremia 21:ae0a4eedfc90 54 virtual void wr_data16(unsigned short data);
Geremia 21:ae0a4eedfc90 55
Geremia 21:ae0a4eedfc90 56 /** Send 16bit pixeldata to display controller
Geremia 21:ae0a4eedfc90 57 *
Geremia 21:ae0a4eedfc90 58 * @param data: halfword to send
Geremia 21:ae0a4eedfc90 59 *
Geremia 21:ae0a4eedfc90 60 */
Geremia 21:ae0a4eedfc90 61 virtual void wr_gram(unsigned short data);
Geremia 21:ae0a4eedfc90 62
Geremia 21:ae0a4eedfc90 63 /** Send same 16bit pixeldata to display controller multiple times
Geremia 21:ae0a4eedfc90 64 *
Geremia 21:ae0a4eedfc90 65 * @param data: halfword to send
Geremia 21:ae0a4eedfc90 66 * @param count: how many
Geremia 21:ae0a4eedfc90 67 *
Geremia 21:ae0a4eedfc90 68 */
Geremia 21:ae0a4eedfc90 69 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 21:ae0a4eedfc90 70
Geremia 21:ae0a4eedfc90 71 /** Send array of pixeldata shorts to display controller
Geremia 21:ae0a4eedfc90 72 *
Geremia 21:ae0a4eedfc90 73 * @param data: unsigned short pixeldata array
Geremia 21:ae0a4eedfc90 74 * @param lenght: lenght (in shorts)
Geremia 21:ae0a4eedfc90 75 *
Geremia 21:ae0a4eedfc90 76 */
Geremia 21:ae0a4eedfc90 77 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 21:ae0a4eedfc90 78
Geremia 21:ae0a4eedfc90 79 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 21:ae0a4eedfc90 80 *
Geremia 21:ae0a4eedfc90 81 * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
Geremia 21:ae0a4eedfc90 82 * @returns 16bit color
Geremia 21:ae0a4eedfc90 83 */
Geremia 21:ae0a4eedfc90 84 virtual unsigned short rd_gram(bool convert);
Geremia 21:ae0a4eedfc90 85
Geremia 21:ae0a4eedfc90 86 /** Read 4x8bit register data (with dummy cycle)
Geremia 21:ae0a4eedfc90 87 * @param reg the register to read
Geremia 21:ae0a4eedfc90 88 * @returns data as uint
Geremia 21:ae0a4eedfc90 89 *
Geremia 21:ae0a4eedfc90 90 */
Geremia 21:ae0a4eedfc90 91 virtual unsigned int rd_reg_data32(unsigned char reg);
Geremia 21:ae0a4eedfc90 92
Geremia 21:ae0a4eedfc90 93 /** Read 3x8bit ExtendedCommands register data
Geremia 21:ae0a4eedfc90 94 * @param reg the register to read
Geremia 21:ae0a4eedfc90 95 * @returns data as uint
Geremia 21:ae0a4eedfc90 96 * @note EXTC regs (0xB0 to 0xFF) are read/write registers, for Parallel mode directly accessible in both directions
Geremia 21:ae0a4eedfc90 97 */
Geremia 21:ae0a4eedfc90 98 virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd);
Geremia 21:ae0a4eedfc90 99
Geremia 21:ae0a4eedfc90 100 /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent
Geremia 21:ae0a4eedfc90 101 * for PAR protocols: a signle RD bit toggle
Geremia 21:ae0a4eedfc90 102 * for SPI8: 8clocks
Geremia 21:ae0a4eedfc90 103 * for SPI16: 16 clocks
Geremia 21:ae0a4eedfc90 104 */
Geremia 21:ae0a4eedfc90 105 virtual void dummyread ();
Geremia 21:ae0a4eedfc90 106
Geremia 21:ae0a4eedfc90 107 /** ILI932x specific, select register for a successive write or read
Geremia 21:ae0a4eedfc90 108 *
Geremia 21:ae0a4eedfc90 109 * @param reg register to be selected
Geremia 21:ae0a4eedfc90 110 * @param forread false = a write next (default), true = a read next
Geremia 21:ae0a4eedfc90 111 * @note forread only used by SPI protocols
Geremia 21:ae0a4eedfc90 112 */
Geremia 21:ae0a4eedfc90 113 virtual void reg_select(unsigned char reg, bool forread =false);
Geremia 21:ae0a4eedfc90 114
Geremia 21:ae0a4eedfc90 115 /** ILI932x specific, write register with data
Geremia 21:ae0a4eedfc90 116 *
Geremia 21:ae0a4eedfc90 117 * @param reg register to write
Geremia 21:ae0a4eedfc90 118 * @param data 16bit data
Geremia 21:ae0a4eedfc90 119 */
Geremia 21:ae0a4eedfc90 120 virtual void reg_write(unsigned char reg, unsigned short data);
Geremia 21:ae0a4eedfc90 121
Geremia 21:ae0a4eedfc90 122 /** ILI932x specific, read register
Geremia 21:ae0a4eedfc90 123 *
Geremia 21:ae0a4eedfc90 124 * @param reg register to be read
Geremia 21:ae0a4eedfc90 125 * @returns 16bit register value
Geremia 21:ae0a4eedfc90 126 */
Geremia 21:ae0a4eedfc90 127 virtual unsigned short reg_read(unsigned char reg);
Geremia 21:ae0a4eedfc90 128
Geremia 21:ae0a4eedfc90 129 /** HW reset sequence (without display init commands)
Geremia 21:ae0a4eedfc90 130 */
Geremia 21:ae0a4eedfc90 131 virtual void hw_reset();
Geremia 21:ae0a4eedfc90 132
Geremia 21:ae0a4eedfc90 133 /** Set ChipSelect high or low
Geremia 21:ae0a4eedfc90 134 * @param enable 0/1
Geremia 21:ae0a4eedfc90 135 */
Geremia 21:ae0a4eedfc90 136 virtual void BusEnable(bool enable);
Geremia 21:ae0a4eedfc90 137
Geremia 21:ae0a4eedfc90 138
Geremia 21:ae0a4eedfc90 139
Geremia 21:ae0a4eedfc90 140 private:
Geremia 21:ae0a4eedfc90 141
Geremia 21:ae0a4eedfc90 142 BusInOut _bus;
Geremia 21:ae0a4eedfc90 143 DigitalOut _CS;
Geremia 21:ae0a4eedfc90 144 DigitalOut _reset;
Geremia 21:ae0a4eedfc90 145 DigitalOut _DC;
Geremia 21:ae0a4eedfc90 146 DigitalOut _WR;
Geremia 21:ae0a4eedfc90 147 DigitalOut _RD;
Geremia 21:ae0a4eedfc90 148
Geremia 21:ae0a4eedfc90 149 };
Geremia 21:ae0a4eedfc90 150 #endif