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发表于 2015-12-25 15:51:57
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本帖最后由 弘毅 于 2017-10-23 12:40 编辑
这是库文件的.cpp文件。
- /***************************************************
- This is our library for the Adafruit ILI9341 Breakout and Shield
- ----> http://www.adafruit.com/products/1651
- Check out the links above for our tutorials and wiring diagrams
- These displays use SPI to communicate, 4 or 5 pins are required to
- interface (RST is optional)
- Adafruit invests time and resources providing this open source code,
- please support Adafruit and open-source hardware by purchasing
- products from Adafruit!
- Written by Limor Fried/Ladyada for Adafruit Industries.
- MIT license, all text above must be included in any redistribution
- ****************************************************/
- #include "Adafruit_ILI9341.h"
- #include <avr/pgmspace.h>
- #include <limits.h>
- #include "pins_arduino.h"
- #include "wiring_private.h"
- #include <SPI.h>
- // Constructor when using software SPI. All output pins are configurable.
- Adafruit_ILI9341::Adafruit_ILI9341(int8_t cs, int8_t dc, int8_t mosi,
- int8_t sclk, int8_t rst, int8_t miso) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
- _cs = cs;
- _dc = dc;
- _mosi = mosi;
- _miso = miso;
- _sclk = sclk;
- _rst = rst;
- hwSPI = false;
- }
- // Constructor when using hardware SPI. Faster, but must use SPI pins
- // specific to each board type (e.g. 11,13 for Uno, 51,52 for Mega, etc.)
- Adafruit_ILI9341::Adafruit_ILI9341(int8_t cs, int8_t dc, int8_t rst) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
- _cs = cs;
- _dc = dc;
- _rst = rst;
- hwSPI = true;
- _mosi = _sclk = 0;
- }
- void Adafruit_ILI9341::spiwrite(uint8_t c) {
- //Serial.print("0x"); Serial.print(c, HEX); Serial.print(", ");
- if (hwSPI) {
- #if defined (__AVR__)
- uint8_t backupSPCR = SPCR;
- SPCR = mySPCR;
- SPDR = c;
- while(!(SPSR & _BV(SPIF)));
- SPCR = backupSPCR;
- #elif defined(TEENSYDUINO)
- SPI.transfer(c);
- #elif defined (__arm__)
- SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- SPI.transfer(c);
- #endif
- } else {
- // Fast SPI bitbang swiped from LPD8806 library
- for(uint8_t bit = 0x80; bit; bit >>= 1) {
- if(c & bit) {
- //digitalWrite(_mosi, HIGH);
- *mosiport |= mosipinmask;
- } else {
- //digitalWrite(_mosi, LOW);
- *mosiport &= ~mosipinmask;
- }
- //digitalWrite(_sclk, HIGH);
- *clkport |= clkpinmask;
- //digitalWrite(_sclk, LOW);
- *clkport &= ~clkpinmask;
- }
- }
- }
- void Adafruit_ILI9341::writecommand(uint8_t c) {
- *dcport &= ~dcpinmask;
- //digitalWrite(_dc, LOW);
- //*clkport &= ~clkpinmask; // clkport is a NULL pointer when hwSPI==true
- //digitalWrite(_sclk, LOW);
- *csport &= ~cspinmask;
- //digitalWrite(_cs, LOW);
- spiwrite(c);
- *csport |= cspinmask;
- //digitalWrite(_cs, HIGH);
- }
- void Adafruit_ILI9341::writedata(uint8_t c) {
- *dcport |= dcpinmask;
- //digitalWrite(_dc, HIGH);
- //*clkport &= ~clkpinmask; // clkport is a NULL pointer when hwSPI==true
- //digitalWrite(_sclk, LOW);
- *csport &= ~cspinmask;
- //digitalWrite(_cs, LOW);
-
- spiwrite(c);
- //digitalWrite(_cs, HIGH);
- *csport |= cspinmask;
- }
- // If the SPI library has transaction support, these functions
- // establish settings and protect from interference from other
- // libraries. Otherwise, they simply do nothing.
- #ifdef SPI_HAS_TRANSACTION
- static inline void spi_begin(void) __attribute__((always_inline));
- static inline void spi_begin(void) {
- SPI.beginTransaction(SPISettings(8000000, MSBFIRST, SPI_MODE0));
- }
- static inline void spi_end(void) __attribute__((always_inline));
- static inline void spi_end(void) {
- SPI.endTransaction();
- }
- #else
- #define spi_begin()
- #define spi_end()
- #endif
- // Rather than a bazillion writecommand() and writedata() calls, screen
- // initialization commands and arguments are organized in these tables
- // stored in PROGMEM. The table may look bulky, but that's mostly the
- // formatting -- storage-wise this is hundreds of bytes more compact
- // than the equivalent code. Companion function follows.
- #define DELAY 0x80
- // Companion code to the above tables. Reads and issues
- // a series of LCD commands stored in PROGMEM byte array.
- void Adafruit_ILI9341::commandList(uint8_t *addr) {
- uint8_t numCommands, numArgs;
- uint16_t ms;
- numCommands = pgm_read_byte(addr++); // Number of commands to follow
- while(numCommands--) { // For each command...
- writecommand(pgm_read_byte(addr++)); // Read, issue command
- numArgs = pgm_read_byte(addr++); // Number of args to follow
- ms = numArgs & DELAY; // If hibit set, delay follows args
- numArgs &= ~DELAY; // Mask out delay bit
- while(numArgs--) { // For each argument...
- writedata(pgm_read_byte(addr++)); // Read, issue argument
- }
- if(ms) {
- ms = pgm_read_byte(addr++); // Read post-command delay time (ms)
- if(ms == 255) ms = 500; // If 255, delay for 500 ms
- delay(ms);
- }
- }
- }
- void Adafruit_ILI9341::begin(void) {
- if (_rst > 0) {
- pinMode(_rst, OUTPUT);
- digitalWrite(_rst, LOW);
- }
- pinMode(_dc, OUTPUT);
- pinMode(_cs, OUTPUT);
- csport = portOutputRegister(digitalPinToPort(_cs));
- cspinmask = digitalPinToBitMask(_cs);
- dcport = portOutputRegister(digitalPinToPort(_dc));
- dcpinmask = digitalPinToBitMask(_dc);
- if(hwSPI) { // Using hardware SPI
- #if defined (__AVR__)
- SPI.begin();
- SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- mySPCR = SPCR;
- #elif defined(TEENSYDUINO)
- SPI.begin();
- SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- #elif defined (__arm__)
- SPI.begin();
- SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- #endif
- } else {
- pinMode(_sclk, OUTPUT);
- pinMode(_mosi, OUTPUT);
- pinMode(_miso, INPUT);
- clkport = portOutputRegister(digitalPinToPort(_sclk));
- clkpinmask = digitalPinToBitMask(_sclk);
- mosiport = portOutputRegister(digitalPinToPort(_mosi));
- mosipinmask = digitalPinToBitMask(_mosi);
- *clkport &= ~clkpinmask;
- *mosiport &= ~mosipinmask;
- }
- // toggle RST low to reset
- if (_rst > 0) {
- digitalWrite(_rst, HIGH);
- delay(5);
- digitalWrite(_rst, LOW);
- delay(20);
- digitalWrite(_rst, HIGH);
- delay(150);
- }
- /*
- uint8_t x = readcommand8(ILI9341_RDMODE);
- Serial.print("\nDisplay Power Mode: 0x"); Serial.println(x, HEX);
- x = readcommand8(ILI9341_RDMADCTL);
- Serial.print("\nMADCTL Mode: 0x"); Serial.println(x, HEX);
- x = readcommand8(ILI9341_RDPIXFMT);
- Serial.print("\nPixel Format: 0x"); Serial.println(x, HEX);
- x = readcommand8(ILI9341_RDIMGFMT);
- Serial.print("\nImage Format: 0x"); Serial.println(x, HEX);
- x = readcommand8(ILI9341_RDSELFDIAG);
- Serial.print("\nSelf Diagnostic: 0x"); Serial.println(x, HEX);
- */
- //if(cmdList) commandList(cmdList);
-
- if (hwSPI) spi_begin();
- writecommand(0xEF);
- writedata(0x03);
- writedata(0x80);
- writedata(0x02);
- writecommand(0xCF);
- writedata(0x00);
- writedata(0XC1);
- writedata(0X30);
- writecommand(0xED);
- writedata(0x64);
- writedata(0x03);
- writedata(0X12);
- writedata(0X81);
-
- writecommand(0xE8);
- writedata(0x85);
- writedata(0x00);
- writedata(0x78);
- writecommand(0xCB);
- writedata(0x39);
- writedata(0x2C);
- writedata(0x00);
- writedata(0x34);
- writedata(0x02);
-
- writecommand(0xF7);
- writedata(0x20);
- writecommand(0xEA);
- writedata(0x00);
- writedata(0x00);
-
- writecommand(ILI9341_PWCTR1); //Power control
- writedata(0x23); //VRH[5:0]
-
- writecommand(ILI9341_PWCTR2); //Power control
- writedata(0x10); //SAP[2:0];BT[3:0]
-
- writecommand(ILI9341_VMCTR1); //VCM control
- writedata(0x3e); //对比度调节
- writedata(0x28);
-
- writecommand(ILI9341_VMCTR2); //VCM control2
- writedata(0x86); //--
-
- writecommand(ILI9341_MADCTL); // Memory Access Control
- writedata(0x48);
- writecommand(ILI9341_PIXFMT);
- writedata(0x55);
-
- writecommand(ILI9341_FRMCTR1);
- writedata(0x00);
- writedata(0x18);
-
- writecommand(ILI9341_DFUNCTR); // Display Function Control
- writedata(0x08);
- writedata(0x82);
- writedata(0x27);
-
- writecommand(0xF2); // 3Gamma Function Disable
- writedata(0x00);
-
- writecommand(ILI9341_GAMMASET); //Gamma curve selected
- writedata(0x01);
-
- writecommand(ILI9341_GMCTRP1); //Set Gamma
- writedata(0x0F);
- writedata(0x31);
- writedata(0x2B);
- writedata(0x0C);
- writedata(0x0E);
- writedata(0x08);
- writedata(0x4E);
- writedata(0xF1);
- writedata(0x37);
- writedata(0x07);
- writedata(0x10);
- writedata(0x03);
- writedata(0x0E);
- writedata(0x09);
- writedata(0x00);
-
- writecommand(ILI9341_GMCTRN1); //Set Gamma
- writedata(0x00);
- writedata(0x0E);
- writedata(0x14);
- writedata(0x03);
- writedata(0x11);
- writedata(0x07);
- writedata(0x31);
- writedata(0xC1);
- writedata(0x48);
- writedata(0x08);
- writedata(0x0F);
- writedata(0x0C);
- writedata(0x31);
- writedata(0x36);
- writedata(0x0F);
- writecommand(ILI9341_SLPOUT); //Exit Sleep
- if (hwSPI) spi_end();
- delay(120);
- if (hwSPI) spi_begin();
- writecommand(ILI9341_DISPON); //Display on
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1,
- uint16_t y1) {
- writecommand(ILI9341_CASET); // Column addr set
- writedata(x0 >> 8);
- writedata(x0 & 0xFF); // XSTART
- writedata(x1 >> 8);
- writedata(x1 & 0xFF); // XEND
- writecommand(ILI9341_PASET); // Row addr set
- writedata(y0>>8);
- writedata(y0); // YSTART
- writedata(y1>>8);
- writedata(y1); // YEND
- writecommand(ILI9341_RAMWR); // write to RAM
- }
- void Adafruit_ILI9341::pushColor(uint16_t color) {
- if (hwSPI) spi_begin();
- //digitalWrite(_dc, HIGH);
- *dcport |= dcpinmask;
- //digitalWrite(_cs, LOW);
- *csport &= ~cspinmask;
- spiwrite(color >> 8);
- spiwrite(color);
- *csport |= cspinmask;
- //digitalWrite(_cs, HIGH);
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::drawPixel(int16_t x, int16_t y, uint16_t color) {
- if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
- if (hwSPI) spi_begin();
- setAddrWindow(x,y,x+1,y+1);
- //digitalWrite(_dc, HIGH);
- *dcport |= dcpinmask;
- //digitalWrite(_cs, LOW);
- *csport &= ~cspinmask;
- spiwrite(color >> 8);
- spiwrite(color);
- *csport |= cspinmask;
- //digitalWrite(_cs, HIGH);
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::drawFastVLine(int16_t x, int16_t y, int16_t h,
- uint16_t color) {
- // Rudimentary clipping
- if((x >= _width) || (y >= _height)) return;
- if((y+h-1) >= _height)
- h = _height-y;
- if (hwSPI) spi_begin();
- setAddrWindow(x, y, x, y+h-1);
- uint8_t hi = color >> 8, lo = color;
- *dcport |= dcpinmask;
- //digitalWrite(_dc, HIGH);
- *csport &= ~cspinmask;
- //digitalWrite(_cs, LOW);
- while (h--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- *csport |= cspinmask;
- //digitalWrite(_cs, HIGH);
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::drawFastHLine(int16_t x, int16_t y, int16_t w,
- uint16_t color) {
- // Rudimentary clipping
- if((x >= _width) || (y >= _height)) return;
- if((x+w-1) >= _width) w = _width-x;
- if (hwSPI) spi_begin();
- setAddrWindow(x, y, x+w-1, y);
- uint8_t hi = color >> 8, lo = color;
- *dcport |= dcpinmask;
- *csport &= ~cspinmask;
- //digitalWrite(_dc, HIGH);
- //digitalWrite(_cs, LOW);
- while (w--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- *csport |= cspinmask;
- //digitalWrite(_cs, HIGH);
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::fillScreen(uint16_t color) {
- fillRect(0, 0, _width, _height, color);
- }
- // fill a rectangle
- void Adafruit_ILI9341::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
- uint16_t color) {
- // rudimentary clipping (drawChar w/big text requires this)
- if((x >= _width) || (y >= _height)) return;
- if((x + w - 1) >= _width) w = _width - x;
- if((y + h - 1) >= _height) h = _height - y;
- if (hwSPI) spi_begin();
- setAddrWindow(x, y, x+w-1, y+h-1);
- uint8_t hi = color >> 8, lo = color;
- *dcport |= dcpinmask;
- //digitalWrite(_dc, HIGH);
- *csport &= ~cspinmask;
- //digitalWrite(_cs, LOW);
- for(y=h; y>0; y--) {
- for(x=w; x>0; x--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- }
- //digitalWrite(_cs, HIGH);
- *csport |= cspinmask;
- if (hwSPI) spi_end();
- }
- // Pass 8-bit (each) R,G,B, get back 16-bit packed color
- uint16_t Adafruit_ILI9341::color565(uint8_t r, uint8_t g, uint8_t b) {
- return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
- }
- #define MADCTL_MY 0x80
- #define MADCTL_MX 0x40
- #define MADCTL_MV 0x20
- #define MADCTL_ML 0x10
- #define MADCTL_RGB 0x00
- #define MADCTL_BGR 0x08
- #define MADCTL_MH 0x04
- void Adafruit_ILI9341::setRotation(uint8_t m) {
- if (hwSPI) spi_begin();
- writecommand(ILI9341_MADCTL);
- rotation = m % 4; // can't be higher than 3
- switch (rotation) {
- case 0:
- writedata(MADCTL_MX | MADCTL_BGR);
- _width = ILI9341_TFTWIDTH;
- _height = ILI9341_TFTHEIGHT;
- break;
- case 1:
- writedata(MADCTL_MV | MADCTL_BGR);
- _width = ILI9341_TFTHEIGHT;
- _height = ILI9341_TFTWIDTH;
- break;
- case 2:
- writedata(MADCTL_MY | MADCTL_BGR);
- _width = ILI9341_TFTWIDTH;
- _height = ILI9341_TFTHEIGHT;
- break;
- case 3:
- writedata(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
- _width = ILI9341_TFTHEIGHT;
- _height = ILI9341_TFTWIDTH;
- break;
- }
- if (hwSPI) spi_end();
- }
- void Adafruit_ILI9341::invertDisplay(boolean i) {
- if (hwSPI) spi_begin();
- writecommand(i ? ILI9341_INVON : ILI9341_INVOFF);
- if (hwSPI) spi_end();
- }
- ////////// stuff not actively being used, but kept for posterity
- uint8_t Adafruit_ILI9341::spiread(void) {
- uint8_t r = 0;
- if (hwSPI) {
- #if defined (__AVR__)
- uint8_t backupSPCR = SPCR;
- SPCR = mySPCR;
- SPDR = 0x00;
- while(!(SPSR & _BV(SPIF)));
- r = SPDR;
- SPCR = backupSPCR;
- #elif defined(TEENSYDUINO)
- r = SPI.transfer(0x00);
- #elif defined (__arm__)
- SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- r = SPI.transfer(0x00);
- #endif
- } else {
- for (uint8_t i=0; i<8; i++) {
- digitalWrite(_sclk, LOW);
- digitalWrite(_sclk, HIGH);
- r <<= 1;
- if (digitalRead(_miso))
- r |= 0x1;
- }
- }
- //Serial.print("read: 0x"); Serial.print(r, HEX);
-
- return r;
- }
- uint8_t Adafruit_ILI9341::readdata(void) {
- digitalWrite(_dc, HIGH);
- digitalWrite(_cs, LOW);
- uint8_t r = spiread();
- digitalWrite(_cs, HIGH);
-
- return r;
- }
-
- uint8_t Adafruit_ILI9341::readcommand8(uint8_t c, uint8_t index) {
- if (hwSPI) spi_begin();
- digitalWrite(_dc, LOW); // command
- digitalWrite(_cs, LOW);
- spiwrite(0xD9); // woo sekret command?
- digitalWrite(_dc, HIGH); // data
- spiwrite(0x10 + index);
- digitalWrite(_cs, HIGH);
- digitalWrite(_dc, LOW);
- digitalWrite(_sclk, LOW);
- digitalWrite(_cs, LOW);
- spiwrite(c);
-
- digitalWrite(_dc, HIGH);
- uint8_t r = spiread();
- digitalWrite(_cs, HIGH);
- if (hwSPI) spi_end();
- return r;
- }
-
- /*
- uint16_t Adafruit_ILI9341::readcommand16(uint8_t c) {
- digitalWrite(_dc, LOW);
- if (_cs)
- digitalWrite(_cs, LOW);
-
- spiwrite(c);
- pinMode(_sid, INPUT); // input!
- uint16_t r = spiread();
- r <<= 8;
- r |= spiread();
- if (_cs)
- digitalWrite(_cs, HIGH);
-
- pinMode(_sid, OUTPUT); // back to output
- return r;
- }
-
- uint32_t Adafruit_ILI9341::readcommand32(uint8_t c) {
- digitalWrite(_dc, LOW);
- if (_cs)
- digitalWrite(_cs, LOW);
- spiwrite(c);
- pinMode(_sid, INPUT); // input!
-
- dummyclock();
- dummyclock();
-
- uint32_t r = spiread();
- r <<= 8;
- r |= spiread();
- r <<= 8;
- r |= spiread();
- r <<= 8;
- r |= spiread();
- if (_cs)
- digitalWrite(_cs, HIGH);
-
- pinMode(_sid, OUTPUT); // back to output
- return r;
- }
-
- */
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