Michael Hope
51dddbdc17
The ESP8266 SPI implementation has a 'writePattern' function that writes a repeating sequence (in this case a solid colour) to the SPI port. This fills up the FIFO and increases the bus utilisation. Using this for clearing the screen cuts the demo run time from 4721 ms to 3601 ms. Also using this for the fast lines cuts the run time to 3424 ms. Signed-off-by: Michael Hope <mlhx@google.com>
192 lines
5.5 KiB
C++
Executable file
192 lines
5.5 KiB
C++
Executable file
/***************************************************
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This is a library for the Adafruit 1.8" SPI display.
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This library works with the Adafruit 1.8" TFT Breakout w/SD card
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----> http://www.adafruit.com/products/358
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The 1.8" TFT shield
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----> https://www.adafruit.com/product/802
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The 1.44" TFT breakout
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----> https://www.adafruit.com/product/2088
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as well as Adafruit raw 1.8" TFT display
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----> http://www.adafruit.com/products/618
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Check out the links above for our tutorials and wiring diagrams
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These displays use SPI to communicate, 4 or 5 pins are required to
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interface (RST is optional)
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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****************************************************/
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#ifndef _ADAFRUIT_ST7735H_
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#define _ADAFRUIT_ST7735H_
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#if ARDUINO >= 100
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#include "Arduino.h"
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#include "Print.h"
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#else
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#include "WProgram.h"
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#endif
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#include <Adafruit_GFX.h>
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#if defined(__SAM3X8E__)
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#include <include/pio.h>
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#define PROGMEM
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#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
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#define pgm_read_word(addr) (*(const unsigned short *)(addr))
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typedef unsigned char prog_uchar;
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#endif
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#ifdef __AVR__
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#include <avr/pgmspace.h>
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#endif
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#if defined(__SAM3X8E__)
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#undef __FlashStringHelper::F(string_literal)
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#define F(string_literal) string_literal
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#endif
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// some flags for initR() :(
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#define INITR_GREENTAB 0x0
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#define INITR_REDTAB 0x1
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#define INITR_BLACKTAB 0x2
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#define INITR_18GREENTAB INITR_GREENTAB
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#define INITR_18REDTAB INITR_REDTAB
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#define INITR_18BLACKTAB INITR_BLACKTAB
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#define INITR_144GREENTAB 0x1
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#define ST7735_TFTWIDTH 128
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// for 1.44" display
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#define ST7735_TFTHEIGHT_144 128
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// for 1.8" display
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#define ST7735_TFTHEIGHT_18 160
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#define ST7735_NOP 0x00
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#define ST7735_SWRESET 0x01
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#define ST7735_RDDID 0x04
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#define ST7735_RDDST 0x09
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#define ST7735_SLPIN 0x10
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#define ST7735_SLPOUT 0x11
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#define ST7735_PTLON 0x12
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#define ST7735_NORON 0x13
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#define ST7735_INVOFF 0x20
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#define ST7735_INVON 0x21
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#define ST7735_DISPOFF 0x28
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#define ST7735_DISPON 0x29
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#define ST7735_CASET 0x2A
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#define ST7735_RASET 0x2B
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#define ST7735_RAMWR 0x2C
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#define ST7735_RAMRD 0x2E
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#define ST7735_PTLAR 0x30
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#define ST7735_COLMOD 0x3A
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#define ST7735_MADCTL 0x36
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#define ST7735_FRMCTR1 0xB1
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#define ST7735_FRMCTR2 0xB2
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#define ST7735_FRMCTR3 0xB3
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#define ST7735_INVCTR 0xB4
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#define ST7735_DISSET5 0xB6
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#define ST7735_PWCTR1 0xC0
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#define ST7735_PWCTR2 0xC1
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#define ST7735_PWCTR3 0xC2
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#define ST7735_PWCTR4 0xC3
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#define ST7735_PWCTR5 0xC4
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#define ST7735_VMCTR1 0xC5
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#define ST7735_RDID1 0xDA
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#define ST7735_RDID2 0xDB
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#define ST7735_RDID3 0xDC
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#define ST7735_RDID4 0xDD
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#define ST7735_PWCTR6 0xFC
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#define ST7735_GMCTRP1 0xE0
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#define ST7735_GMCTRN1 0xE1
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// Color definitions
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#define ST7735_BLACK 0x0000
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#define ST7735_BLUE 0x001F
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#define ST7735_RED 0xF800
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#define ST7735_GREEN 0x07E0
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#define ST7735_CYAN 0x07FF
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#define ST7735_MAGENTA 0xF81F
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#define ST7735_YELLOW 0xFFE0
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#define ST7735_WHITE 0xFFFF
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class Adafruit_ST7735 : public Adafruit_GFX {
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public:
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Adafruit_ST7735(int8_t CS, int8_t RS, int8_t SID, int8_t SCLK, int8_t RST = -1);
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Adafruit_ST7735(int8_t CS, int8_t RS, int8_t RST = -1);
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void initB(void), // for ST7735B displays
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initR(uint8_t options = INITR_GREENTAB), // for ST7735R
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setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1),
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pushColor(uint16_t color),
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fillScreen(uint16_t color),
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drawPixel(int16_t x, int16_t y, uint16_t color),
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drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color),
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drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color),
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fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
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uint16_t color),
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setRotation(uint8_t r),
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invertDisplay(boolean i);
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uint16_t Color565(uint8_t r, uint8_t g, uint8_t b);
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/* These are not for current use, 8-bit protocol only!
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uint8_t readdata(void),
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readcommand8(uint8_t);
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uint16_t readcommand16(uint8_t);
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uint32_t readcommand32(uint8_t);
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void dummyclock(void);
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*/
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private:
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uint8_t tabcolor;
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void spiwrite(uint8_t),
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spiwrite16(uint16_t v),
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writecommand(uint8_t c),
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writedata(uint8_t d),
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writedata16(uint16_t d),
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writeColor(uint16_t color, uint16_t count),
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setCS(bool level),
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setRS(bool level),
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commandList(const uint8_t *addr),
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commonInit(const uint8_t *cmdList);
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//uint8_t spiread(void);
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boolean hwSPI;
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#if defined(__AVR__) || defined(CORE_TEENSY)
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volatile uint8_t *dataport, *clkport, *csport, *rsport;
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uint8_t _cs, _rs, _rst, _sid, _sclk,
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datapinmask, clkpinmask, cspinmask, rspinmask,
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colstart, rowstart; // some displays need this changed
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#elif defined(__SAM3X8E__)
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Pio *dataport, *clkport, *csport, *rsport;
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uint32_t _cs, _rs, _rst, _sid, _sclk,
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datapinmask, clkpinmask, cspinmask, rspinmask,
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colstart, rowstart; // some displays need this changed
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#elif defined(ARDUINO_ARCH_ESP8266)
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#define ST7735_USE_GENERIC_IO
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#define ST7735_USE_HWSPI_ONLY
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#define ST7735_USE_HWSPI_WRITE16
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#define ST7735_USE_HWSPI_WRITEPATTERN
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uint8_t _cs, _rs, _rst, _sid, _sclk;
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uint8_t colstart, rowstart;
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#endif
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};
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#endif
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