Juan Loreto / Mbed 2 deprecated Nucleo-F411RE-LGDP4535_TFT_Demo

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Dependencies:   mbed

Protocols/SPI16.h@0:e67bf8f398ee, 2015-08-23 (annotated)

Committer:
jloreto
Date:
Sun Aug 23 15:50:19 2015 +0000
Revision:
0:e67bf8f398ee
This program is to test MCU Friend shield based on LGDP4535 in Nucleo-F411RE board.; Libraries modified from Unigraphic Library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jloreto 0:e67bf8f398ee 1 #ifndef SPI16_H
jloreto 0:e67bf8f398ee 2 #define SPI16_H
jloreto 0:e67bf8f398ee 3
jloreto 0:e67bf8f398ee 4 #include "mbed.h"
jloreto 0:e67bf8f398ee 5 #include "Protocols.h"
jloreto 0:e67bf8f398ee 6 //#include "GraphicsDisplay.h"
jloreto 0:e67bf8f398ee 7
jloreto 0:e67bf8f398ee 8 /** SPI 16bit interface
jloreto 0:e67bf8f398ee 9 */
jloreto 0:e67bf8f398ee 10 class SPI16 : public Protocols
jloreto 0:e67bf8f398ee 11 {
jloreto 0:e67bf8f398ee 12 public:
jloreto 0:e67bf8f398ee 13
jloreto 0:e67bf8f398ee 14 /** Create an SPI 8bit display interface with 3 control pins
jloreto 0:e67bf8f398ee 15 *
jloreto 0:e67bf8f398ee 16 * @param SPI mosi
jloreto 0:e67bf8f398ee 17 * @param SPI miso
jloreto 0:e67bf8f398ee 18 * @param SPI sclk
jloreto 0:e67bf8f398ee 19 * @param CS pin connected to CS of display
jloreto 0:e67bf8f398ee 20 * @param reset pin connected to RESET of display
jloreto 0:e67bf8f398ee 21 * @param DC pin connected to data/command of display
jloreto 0:e67bf8f398ee 22 */
jloreto 0:e67bf8f398ee 23 SPI16(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC=NC);
jloreto 0:e67bf8f398ee 24
jloreto 0:e67bf8f398ee 25 protected:
jloreto 0:e67bf8f398ee 26
jloreto 0:e67bf8f398ee 27 /** Send 8bit command to display controller
jloreto 0:e67bf8f398ee 28 *
jloreto 0:e67bf8f398ee 29 * @note switches spi format 16->8->16, better use wr_cmd16 with NOP in front
jloreto 0:e67bf8f398ee 30 * @param cmd: byte to send
jloreto 0:e67bf8f398ee 31 *
jloreto 0:e67bf8f398ee 32 */
jloreto 0:e67bf8f398ee 33 virtual void wr_cmd8(unsigned char cmd);
jloreto 0:e67bf8f398ee 34
jloreto 0:e67bf8f398ee 35 /** Send 8bit data to display controller
jloreto 0:e67bf8f398ee 36 *
jloreto 0:e67bf8f398ee 37 * @note switches spi format 16->8->16, better use wr_data16 with repeated byte (if does not hurt)
jloreto 0:e67bf8f398ee 38 * @param data: byte to send
jloreto 0:e67bf8f398ee 39 *
jloreto 0:e67bf8f398ee 40 */
jloreto 0:e67bf8f398ee 41 virtual void wr_data8(unsigned char data);
jloreto 0:e67bf8f398ee 42
jloreto 0:e67bf8f398ee 43 /** Send 2x8bit command to display controller
jloreto 0:e67bf8f398ee 44 *
jloreto 0:e67bf8f398ee 45 * @param cmd: halfword to send
jloreto 0:e67bf8f398ee 46 * @note in SPI_16 mode a single 16bit transfer will be done
jloreto 0:e67bf8f398ee 47 */
jloreto 0:e67bf8f398ee 48 virtual void wr_cmd16(unsigned short cmd);
jloreto 0:e67bf8f398ee 49
jloreto 0:e67bf8f398ee 50 /** Send 2x8bit data to display controller
jloreto 0:e67bf8f398ee 51 *
jloreto 0:e67bf8f398ee 52 * @param data: halfword to send
jloreto 0:e67bf8f398ee 53 * @note in SPI_16 mode a single 16bit transfer will be done
jloreto 0:e67bf8f398ee 54 */
jloreto 0:e67bf8f398ee 55 virtual void wr_data16(unsigned short data);
jloreto 0:e67bf8f398ee 56
jloreto 0:e67bf8f398ee 57 /** Send 16bit pixeldata to display controller
jloreto 0:e67bf8f398ee 58 *
jloreto 0:e67bf8f398ee 59 * @param data: halfword to send
jloreto 0:e67bf8f398ee 60 *
jloreto 0:e67bf8f398ee 61 */
jloreto 0:e67bf8f398ee 62 virtual void wr_gram(unsigned short data);
jloreto 0:e67bf8f398ee 63
jloreto 0:e67bf8f398ee 64 /** Send same 16bit pixeldata to display controller multiple times
jloreto 0:e67bf8f398ee 65 *
jloreto 0:e67bf8f398ee 66 * @param data: halfword to send
jloreto 0:e67bf8f398ee 67 * @param count: how many
jloreto 0:e67bf8f398ee 68 *
jloreto 0:e67bf8f398ee 69 */
jloreto 0:e67bf8f398ee 70 virtual void wr_gram(unsigned short data, unsigned int count);
jloreto 0:e67bf8f398ee 71
jloreto 0:e67bf8f398ee 72 /** Send array of pixeldata shorts to display controller
jloreto 0:e67bf8f398ee 73 *
jloreto 0:e67bf8f398ee 74 * @param data: unsigned short pixeldata array
jloreto 0:e67bf8f398ee 75 * @param lenght: lenght (in shorts)
jloreto 0:e67bf8f398ee 76 *
jloreto 0:e67bf8f398ee 77 */
jloreto 0:e67bf8f398ee 78 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
jloreto 0:e67bf8f398ee 79
jloreto 0:e67bf8f398ee 80 /** Read 16bit pixeldata from display controller (with dummy cycle)
jloreto 0:e67bf8f398ee 81 *
jloreto 0:e67bf8f398ee 82 * @param convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
jloreto 0:e67bf8f398ee 83 * @returns 16bit color
jloreto 0:e67bf8f398ee 84 */
jloreto 0:e67bf8f398ee 85 virtual unsigned short rd_gram(bool convert);
jloreto 0:e67bf8f398ee 86
jloreto 0:e67bf8f398ee 87 /** Read 4x8bit register data (with dummy cycle)
jloreto 0:e67bf8f398ee 88 * @param reg the register to read
jloreto 0:e67bf8f398ee 89 * @returns data as uint
jloreto 0:e67bf8f398ee 90 *
jloreto 0:e67bf8f398ee 91 */
jloreto 0:e67bf8f398ee 92 virtual unsigned int rd_reg_data32(unsigned char reg);
jloreto 0:e67bf8f398ee 93
jloreto 0:e67bf8f398ee 94 /** Read 3x8bit ExtendedCommands register data
jloreto 0:e67bf8f398ee 95 * @param reg the register to read
jloreto 0:e67bf8f398ee 96 * @param SPIreadenablecmd vendor/device specific cmd to read EXTC registers
jloreto 0:e67bf8f398ee 97 * @returns data as uint
jloreto 0:e67bf8f398ee 98 * @note EXTC regs (0xB0 to 0xFF) are read/write registers but needs special cmd to be read in SPI mode
jloreto 0:e67bf8f398ee 99 */
jloreto 0:e67bf8f398ee 100 virtual unsigned int rd_extcreg_data32(unsigned char reg, unsigned char SPIreadenablecmd);
jloreto 0:e67bf8f398ee 101
jloreto 0:e67bf8f398ee 102 /** ILI932x specific, does a dummy read cycle, number of bits is protocol dependent
jloreto 0:e67bf8f398ee 103 * for PAR protocols: a signle RD bit toggle
jloreto 0:e67bf8f398ee 104 * for SPI8: 8clocks
jloreto 0:e67bf8f398ee 105 * for SPI16: 16 clocks
jloreto 0:e67bf8f398ee 106 */
jloreto 0:e67bf8f398ee 107 virtual void dummyread ();
jloreto 0:e67bf8f398ee 108
jloreto 0:e67bf8f398ee 109 /** ILI932x specific, select register for a successive write or read
jloreto 0:e67bf8f398ee 110 *
jloreto 0:e67bf8f398ee 111 * @param reg register to be selected
jloreto 0:e67bf8f398ee 112 * @param forread false = a write next (default), true = a read next
jloreto 0:e67bf8f398ee 113 * @note forread only used by SPI protocols
jloreto 0:e67bf8f398ee 114 */
jloreto 0:e67bf8f398ee 115 virtual void reg_select(unsigned char reg, bool forread =false);
jloreto 0:e67bf8f398ee 116
jloreto 0:e67bf8f398ee 117 /** ILI932x specific, write register with data
jloreto 0:e67bf8f398ee 118 *
jloreto 0:e67bf8f398ee 119 * @param reg register to write
jloreto 0:e67bf8f398ee 120 * @param data 16bit data
jloreto 0:e67bf8f398ee 121 */
jloreto 0:e67bf8f398ee 122 virtual void reg_write(unsigned char reg, unsigned short data);
jloreto 0:e67bf8f398ee 123
jloreto 0:e67bf8f398ee 124 /** ILI932x specific, read register
jloreto 0:e67bf8f398ee 125 *
jloreto 0:e67bf8f398ee 126 * @param reg register to be read
jloreto 0:e67bf8f398ee 127 * @returns 16bit register value
jloreto 0:e67bf8f398ee 128 */
jloreto 0:e67bf8f398ee 129 virtual unsigned short reg_read(unsigned char reg);
jloreto 0:e67bf8f398ee 130
jloreto 0:e67bf8f398ee 131 /** HW reset sequence (without display init commands)
jloreto 0:e67bf8f398ee 132 */
jloreto 0:e67bf8f398ee 133 virtual void hw_reset();
jloreto 0:e67bf8f398ee 134
jloreto 0:e67bf8f398ee 135 /** Set ChipSelect high or low
jloreto 0:e67bf8f398ee 136 * @param enable 0/1
jloreto 0:e67bf8f398ee 137 */
jloreto 0:e67bf8f398ee 138 virtual void BusEnable(bool enable);
jloreto 0:e67bf8f398ee 139
jloreto 0:e67bf8f398ee 140 DigitalOut _CS;
jloreto 0:e67bf8f398ee 141
jloreto 0:e67bf8f398ee 142 private:
jloreto 0:e67bf8f398ee 143
jloreto 0:e67bf8f398ee 144 SPI _spi;
jloreto 0:e67bf8f398ee 145 DigitalOut _reset;
jloreto 0:e67bf8f398ee 146 DigitalOut _DC;
jloreto 0:e67bf8f398ee 147
jloreto 0:e67bf8f398ee 148 };
jloreto 0:e67bf8f398ee 149 #endif