Stepan Smejkal / UniGraphic

.

Protocols/SPI16.h@6:8356d48a07db, 2015-02-16 (annotated)

Committer:
Geremia
Date:
Mon Feb 16 01:18:29 2015 +0000
Revision:
6:8356d48a07db
Parent:
5:b222a9461d6b
Child:
7:bb0383b91104
updated docs

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 1:ff019d22b275 1 #ifndef SPI16_H
Geremia 1:ff019d22b275 2 #define SPI16_H
Geremia 1:ff019d22b275 3
Geremia 1:ff019d22b275 4 #include "mbed.h"
Geremia 1:ff019d22b275 5 #include "Protocols.h"
Geremia 1:ff019d22b275 6 //#include "GraphicsDisplay.h"
Geremia 1:ff019d22b275 7
Geremia 6:8356d48a07db 8 /** SPI 16bit interface
Geremia 6:8356d48a07db 9 */
Geremia 1:ff019d22b275 10 class SPI16 : public Protocols
Geremia 1:ff019d22b275 11 {
Geremia 1:ff019d22b275 12 public:
Geremia 1:ff019d22b275 13
Geremia 1:ff019d22b275 14 /** Create an SPI 8bit display interface with 3 control pins
Geremia 1:ff019d22b275 15 *
Geremia 1:ff019d22b275 16 * @param SPI mosi
Geremia 1:ff019d22b275 17 * @param SPI miso
Geremia 1:ff019d22b275 18 * @param SPI sclk
Geremia 1:ff019d22b275 19 * @param CS pin connected to CS of display
Geremia 1:ff019d22b275 20 * @param reset pin connected to RESET of display
Geremia 1:ff019d22b275 21 * @param DC pin connected to data/command of display
Geremia 1:ff019d22b275 22 */
Geremia 1:ff019d22b275 23 SPI16(int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC);
Geremia 1:ff019d22b275 24
Geremia 1:ff019d22b275 25 protected:
Geremia 1:ff019d22b275 26
Geremia 1:ff019d22b275 27 /** Send 8bit command to display controller
Geremia 1:ff019d22b275 28 *
Geremia 1:ff019d22b275 29 * @note switches spi format 16->8->16, better use wr_cmd16 with NOP in front
Geremia 1:ff019d22b275 30 * @param cmd: byte to send
Geremia 1:ff019d22b275 31 *
Geremia 1:ff019d22b275 32 */
Geremia 1:ff019d22b275 33 virtual void wr_cmd8(unsigned char cmd);
Geremia 1:ff019d22b275 34
Geremia 1:ff019d22b275 35 /** Send 8bit data to display controller
Geremia 1:ff019d22b275 36 *
Geremia 1:ff019d22b275 37 * @note switches spi format 16->8->16, better use wr_data16 with repeated byte (if does not hurt)
Geremia 1:ff019d22b275 38 * @param data: byte to send
Geremia 1:ff019d22b275 39 *
Geremia 1:ff019d22b275 40 */
Geremia 1:ff019d22b275 41 virtual void wr_data8(unsigned char data);
Geremia 1:ff019d22b275 42
Geremia 4:12ba0ecc2c1f 43 /** Send 2x8bit command to display controller
Geremia 1:ff019d22b275 44 *
Geremia 1:ff019d22b275 45 * @param cmd: halfword to send
Geremia 4:12ba0ecc2c1f 46 * @note in SPI_16 mode a single 16bit transfer will be done
Geremia 1:ff019d22b275 47 */
Geremia 1:ff019d22b275 48 virtual void wr_cmd16(unsigned short cmd);
Geremia 1:ff019d22b275 49
Geremia 4:12ba0ecc2c1f 50 /** Send 2x8bit data to display controller
Geremia 4:12ba0ecc2c1f 51 *
Geremia 4:12ba0ecc2c1f 52 * @param data: halfword to send
Geremia 4:12ba0ecc2c1f 53 * @note in SPI_16 mode a single 16bit transfer will be done
Geremia 4:12ba0ecc2c1f 54 */
Geremia 4:12ba0ecc2c1f 55 virtual void wr_data16(unsigned short data);
Geremia 4:12ba0ecc2c1f 56
Geremia 4:12ba0ecc2c1f 57 /** Send 16bit pixeldata to display controller
Geremia 1:ff019d22b275 58 *
Geremia 1:ff019d22b275 59 * @param data: halfword to send
Geremia 1:ff019d22b275 60 *
Geremia 1:ff019d22b275 61 */
Geremia 4:12ba0ecc2c1f 62 virtual void wr_gram(unsigned short data);
Geremia 1:ff019d22b275 63
Geremia 4:12ba0ecc2c1f 64 /** Send same 16bit pixeldata to display controller multiple times
Geremia 1:ff019d22b275 65 *
Geremia 1:ff019d22b275 66 * @param data: halfword to send
Geremia 1:ff019d22b275 67 * @param count: how many
Geremia 1:ff019d22b275 68 *
Geremia 1:ff019d22b275 69 */
Geremia 4:12ba0ecc2c1f 70 virtual void wr_gram(unsigned short data, unsigned int count);
Geremia 1:ff019d22b275 71
Geremia 4:12ba0ecc2c1f 72 /** Send array of pixeldata shorts to display controller
Geremia 1:ff019d22b275 73 *
Geremia 4:12ba0ecc2c1f 74 * @param data: unsigned short pixeldata array
Geremia 1:ff019d22b275 75 * @param lenght: lenght (in shorts)
Geremia 1:ff019d22b275 76 *
Geremia 1:ff019d22b275 77 */
Geremia 4:12ba0ecc2c1f 78 virtual void wr_grambuf(unsigned short* data, unsigned int lenght);
Geremia 1:ff019d22b275 79
Geremia 5:b222a9461d6b 80 /** Read 4x8bit data from display controller (with dummy cycle)
Geremia 5:b222a9461d6b 81 *
Geremia 5:b222a9461d6b 82 * @returns data as uint
Geremia 5:b222a9461d6b 83 *
Geremia 5:b222a9461d6b 84 */
Geremia 5:b222a9461d6b 85 virtual unsigned int rd_data32_wdummy();
Geremia 5:b222a9461d6b 86
Geremia 5:b222a9461d6b 87 /** Read 16bit pixeldata from display controller (with dummy cycle)
Geremia 5:b222a9461d6b 88 *
Geremia 5:b222a9461d6b 89 * @returns 16bit color
Geremia 5:b222a9461d6b 90 */
Geremia 5:b222a9461d6b 91 virtual unsigned short rd_gram();
Geremia 5:b222a9461d6b 92
Geremia 1:ff019d22b275 93 /** HW reset sequence (without display init commands)
Geremia 1:ff019d22b275 94 */
Geremia 1:ff019d22b275 95 virtual void hw_reset();
Geremia 1:ff019d22b275 96
Geremia 1:ff019d22b275 97 /** Set ChipSelect high or low
Geremia 1:ff019d22b275 98 * @param enable 0/1
Geremia 1:ff019d22b275 99 */
Geremia 1:ff019d22b275 100 virtual void BusEnable(bool enable);
Geremia 1:ff019d22b275 101
Geremia 1:ff019d22b275 102 DigitalOut _CS;
Geremia 1:ff019d22b275 103
Geremia 1:ff019d22b275 104 private:
Geremia 1:ff019d22b275 105
Geremia 1:ff019d22b275 106 SPI _spi;
Geremia 1:ff019d22b275 107 DigitalOut _reset;
Geremia 1:ff019d22b275 108 DigitalOut _DC;
Geremia 1:ff019d22b275 109
Geremia 1:ff019d22b275 110 };
Geremia 1:ff019d22b275 111 #endif