init
This commit is contained in:
ladyada
commit
1ac4e022a3
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#include <Arduino.h>
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#include <SPI.h>
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#include "Adafruit_RA8875.h"
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Adafruit_RA8875::Adafruit_RA8875(uint8_t CS, uint8_t RST) {
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_cs = CS;
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_rst = RST;
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}
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boolean Adafruit_RA8875::begin(enum RA8875sizes s) {
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_size = s;
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if (_size == RA8875_480x272) {
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_width = 480;
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_height = 272;
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}
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if (_size == RA8875_800x480) {
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_width = 800;
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_height = 480;
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}
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pinMode(_cs, OUTPUT);
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digitalWrite(_cs, HIGH);
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pinMode(_rst, OUTPUT);
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digitalWrite(_rst, LOW);
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digitalWrite(_rst, LOW);
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delay(100);
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digitalWrite(_rst, HIGH);
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delay(100);
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SPI.begin();
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SPI.setClockDivider(SPI_CLOCK_DIV128);
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SPI.setDataMode(SPI_MODE0);
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if (readReg(0) != 0x75) {
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return false;
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}
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initialize();
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SPI.setClockDivider(SPI_CLOCK_DIV4);
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return true;
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}
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/************************* Initialization *********************************/
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void Adafruit_RA8875::softReset(void) {
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writeCommand(RA8875_PWRR);
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writeData(RA8875_PWRR_SOFTRESET);
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writeData(RA8875_PWRR_NORMAL);
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delay(1);
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}
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void Adafruit_RA8875::PLLinit(void) {
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// for 480 x 272
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if (_size == RA8875_480x272) {
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writeReg(RA8875_PLLC1, RA8875_PLLC1_PLLDIV1 + 10);
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delay(1);
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writeReg(RA8875_PLLC2, RA8875_PLLC2_DIV4);
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delay(1);
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}
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if (_size == RA8875_800x480) {
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writeReg(RA8875_PLLC1, RA8875_PLLC1_PLLDIV1 + 10);
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delay(1);
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writeReg(RA8875_PLLC2, RA8875_PLLC2_DIV4);
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delay(1);
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}
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}
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void Adafruit_RA8875::initialize(void) {
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PLLinit();
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writeReg(RA8875_SYSR, RA8875_SYSR_16BPP | RA8875_SYSR_MCU8);
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// for 480 x 272
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uint8_t pixclk, hsync_start, hsync_pw, hsync_finetune, hsync_nondisp, vsync_pw;
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uint16_t vsync_nondisp, vsync_start;
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if (_size == RA8875_480x272) {
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pixclk = RA8875_PCSR_PDATL | RA8875_PCSR_8CLK;
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hsync_nondisp = 10;
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hsync_start = 8;
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hsync_pw = 48;
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hsync_finetune = 0;
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vsync_nondisp = 3;
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vsync_start = 8;
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vsync_pw = 10;
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} else if (_size == RA8875_800x480) {
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pixclk = RA8875_PCSR_PDATL | RA8875_PCSR_2CLK;
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hsync_nondisp = 26;
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hsync_start = 32;
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hsync_pw = 96;
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hsync_finetune = 0;
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vsync_nondisp = 32;
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vsync_start = 23;
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vsync_pw = 2;
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}
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writeReg(RA8875_PCSR, pixclk);
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delay(1);
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// Horizontal settings registers
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writeReg(RA8875_HDWR, (_width / 8) - 1); // H width: (HDWR + 1) * 8 = 480
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writeReg(RA8875_HNDFTR, RA8875_HNDFTR_DE_HIGH + hsync_finetune);
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writeReg(RA8875_HNDR, (hsync_nondisp - hsync_finetune - 2)/8); // H non-display: HNDR * 8 + HNDFTR + 2 = 10
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writeReg(RA8875_HSTR, hsync_start/8 - 1); // Hsync start: (HSTR + 1)*8
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writeReg(RA8875_HPWR, RA8875_HPWR_LOW + (hsync_pw/8 - 1)); // HSync pulse width = (HPWR+1) * 8
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// Vertical settings registers
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writeReg(RA8875_VDHR0, (uint16_t)(_height - 1) & 0xFF);
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writeReg(RA8875_VDHR1, (uint16_t)(_height - 1) >> 8);
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writeReg(RA8875_VNDR0, vsync_nondisp-1); // V non-display period = VNDR + 1
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writeReg(RA8875_VNDR1, vsync_nondisp >> 8);
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writeReg(RA8875_VSTR0, vsync_start-1); // Vsync start position = VSTR + 1
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writeReg(RA8875_VSTR1, vsync_start >> 8);
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writeReg(RA8875_VPWR, RA8875_VPWR_LOW + vsync_pw - 1); // Vsync pulse width = VPWR + 1
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// Set active window X
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writeReg(RA8875_HSAW0, 0); // horizontal start point
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writeReg(RA8875_HSAW1, 0);
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writeReg(RA8875_HEAW0, (uint16_t)(_width - 1) & 0xFF); // horizontal end point
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writeReg(RA8875_HEAW1, (uint16_t)(_width - 1) >> 8);
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// Set active window Y
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writeReg(RA8875_VSAW0, 0); // vertical start point
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writeReg(RA8875_VSAW1, 0);
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writeReg(RA8875_VEAW0, (uint16_t)(_height - 1) & 0xFF); // horizontal end point
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writeReg(RA8875_VEAW1, (uint16_t)(_height - 1) >> 8);
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// touch panel?
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// clear full window
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writeReg(RA8875_MCLR, RA8875_MCLR_START | RA8875_MCLR_FULL);
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delay(500);
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}
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uint16_t Adafruit_RA8875::width(void) { return _width; }
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uint16_t Adafruit_RA8875::height(void) { return _height; }
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/************************* Graphics ***********************************/
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void Adafruit_RA8875::pushPixels(uint32_t num, uint16_t p) {
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digitalWrite(_cs, LOW);
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SPI.transfer(RA8875_DATAWRITE);
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while (num--) {
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SPI.transfer(p >> 8);
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SPI.transfer(p);
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}
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digitalWrite(_cs, HIGH);
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}
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void Adafruit_RA8875::graphicsMode(void) {
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writeCommand(RA8875_MWCR0);
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uint8_t temp = readData();
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temp &= ~RA8875_MWCR0_TXTMODE; // bit #7
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writeData(temp);
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}
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void Adafruit_RA8875::setXY(uint16_t x, uint16_t y) {
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writeReg(RA8875_CURH0, x);
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writeReg(RA8875_CURH1, x >> 8);
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writeReg(RA8875_CURV0, y);
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writeReg(RA8875_CURV1, y >> 8);
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}
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void Adafruit_RA8875::fillRect(void) {
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writeCommand(RA8875_DCR);
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writeData(RA8875_DCR_LINESQUTRI_STOP | RA8875_DCR_DRAWSQUARE);
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writeData(RA8875_DCR_LINESQUTRI_START | RA8875_DCR_FILL | RA8875_DCR_DRAWSQUARE);
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}
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/************************* Mid Level ***********************************/
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void Adafruit_RA8875::GPIOX(boolean on) {
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if (on)
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writeReg(RA8875_GPIOX, 1);
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else
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writeReg(RA8875_GPIOX, 0);
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}
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void Adafruit_RA8875::PWM1out(uint8_t p) {
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writeReg(RA8875_P1DCR, p);
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}
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void Adafruit_RA8875::PWM2out(uint8_t p) {
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writeReg(RA8875_P2DCR, p);
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}
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void Adafruit_RA8875::PWM1config(boolean on, uint8_t clock) {
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if (on) {
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writeReg(RA8875_P1CR, RA8875_P1CR_ENABLE | (clock & 0xF));
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} else {
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writeReg(RA8875_P1CR, RA8875_P1CR_DISABLE | (clock & 0xF));
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}
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}
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void Adafruit_RA8875::PWM2config(boolean on, uint8_t clock) {
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if (on) {
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writeReg(RA8875_P2CR, RA8875_P2CR_ENABLE | (clock & 0xF));
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} else {
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writeReg(RA8875_P2CR, RA8875_P2CR_DISABLE | (clock & 0xF));
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}
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}
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void Adafruit_RA8875::touchEnable(boolean on) {
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if (on) {
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writeReg(RA8875_TPCR0, RA8875_TPCR0_ENABLE | RA8875_TPCR0_WAIT_4096CLK |
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RA8875_TPCR0_WAKEDISABLE | RA8875_TPCR0_ADCCLK_DIV4); // 10mhz max!
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writeReg(RA8875_TPCR1, RA8875_TPCR1_AUTO | RA8875_TPCR1_VREFEXT
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| RA8875_TPCR1_DEBOUNCE);
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writeReg(RA8875_INTC1, readReg(RA8875_INTC1) | RA8875_INTC1_TP);
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} else {
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writeReg(RA8875_INTC1, readReg(RA8875_INTC1) & ~RA8875_INTC1_TP);
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writeReg(RA8875_TPCR0, RA8875_TPCR0_DISABLE);
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}
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}
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boolean Adafruit_RA8875::touched(void) {
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if (readReg(RA8875_INTC2) & RA8875_INTC2_TP) return true;
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return false;
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}
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boolean Adafruit_RA8875::touchRead(uint16_t *x, uint16_t *y) {
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uint16_t tx, ty;
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uint8_t temp;
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writeCommand(RA8875_TPXH);
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tx = readData();
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ty = readData();
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temp = readData();
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Serial.print("[0x");
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Serial.print(tx, HEX); Serial.print(", ");
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Serial.print(ty, HEX); Serial.print(", ");
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Serial.print(temp, HEX); Serial.println("]");
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/*
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tx = readReg(RA8875_TPXH);
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ty = readReg(RA8875_TPYH);
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temp = readReg(RA8875_TPXYL);
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*/
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tx <<= 2;
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ty <<= 2;
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tx |= temp & 0x03; // get the bottom x bits
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ty |= (temp >> 2) & 0x03; // get the bottom y bits
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*x = tx;
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*y = ty;
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writeReg(RA8875_INTC2, RA8875_INTC2_TP);
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return true;
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}
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void Adafruit_RA8875::displayOn(boolean on) {
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if (on)
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writeReg(RA8875_PWRR, RA8875_PWRR_NORMAL | RA8875_PWRR_DISPON);
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else
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writeReg(RA8875_PWRR, RA8875_PWRR_NORMAL | RA8875_PWRR_DISPOFF);
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}
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void Adafruit_RA8875::sleep(boolean sleep) {
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if (sleep)
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writeReg(RA8875_PWRR, RA8875_PWRR_DISPOFF | RA8875_PWRR_SLEEP);
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else
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writeReg(RA8875_PWRR, RA8875_PWRR_DISPOFF);
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}
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/************************* Low Level ***********************************/
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void Adafruit_RA8875::writeReg(uint8_t reg, uint8_t val) {
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writeCommand(reg);
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writeData(val);
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}
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uint8_t Adafruit_RA8875::readReg(uint8_t reg) {
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writeCommand(reg);
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return readData();
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}
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void Adafruit_RA8875::writeData(uint8_t d) {
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digitalWrite(_cs, LOW);
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SPI.transfer(RA8875_DATAWRITE);
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SPI.transfer(d);
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digitalWrite(_cs, HIGH);
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Serial.print(" = 0x"); Serial.println(d, HEX);
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}
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uint8_t Adafruit_RA8875::readData(void) {
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digitalWrite(_cs, LOW);
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SPI.transfer(RA8875_DATAREAD);
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uint8_t x = SPI.transfer(0x0);
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digitalWrite(_cs, HIGH);
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return x;
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}
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void Adafruit_RA8875::writeCommand(uint8_t d) {
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//Serial.print("$"); Serial.print(d, HEX);
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digitalWrite(_cs, LOW);
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SPI.transfer(RA8875_CMDWRITE);
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SPI.transfer(d);
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digitalWrite(_cs, HIGH);
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}
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uint8_t Adafruit_RA8875::readStatus(void) {
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digitalWrite(_cs, LOW);
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SPI.transfer(RA8875_CMDREAD);
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uint8_t x = SPI.transfer(0x0);
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digitalWrite(_cs, HIGH);
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return x;
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}
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@ -0,0 +1,248 @@
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#include <Arduino.h>
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// Sizes!
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enum RA8875sizes { RA8875_480x272, RA8875_800x480 };
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class Adafruit_RA8875 {
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public:
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Adafruit_RA8875(uint8_t cs, uint8_t rst);
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boolean begin(enum RA8875sizes s);
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void softReset(void);
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void displayOn(boolean on);
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void sleep(boolean sleep);
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void pushPixels(uint32_t num, uint16_t p);
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void graphicsMode(void);
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void setXY(uint16_t x, uint16_t y);
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void fillRect(void);
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void GPIOX(boolean on);
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void PWM1config(boolean on, uint8_t clock);
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void PWM2config(boolean on, uint8_t clock);
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void PWM1out(uint8_t p);
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void PWM2out(uint8_t p);
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void touchEnable(boolean on);
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boolean touched(void);
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boolean touchRead(uint16_t *x, uint16_t *y);
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void writeReg(uint8_t reg, uint8_t val);
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uint8_t readReg(uint8_t reg);
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void writeData(uint8_t d);
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uint8_t readData(void);
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void writeCommand(uint8_t d);
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uint8_t readStatus(void);
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uint16_t width(void);
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uint16_t height(void);
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private:
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void PLLinit(void);
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void initialize(void);
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uint8_t _cs, _rst;
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uint16_t _width, _height;
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enum RA8875sizes _size;
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};
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// Colors!
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#define RA8875_BLACK 0x0000
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#define RA8875_BLUE 0x001F
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#define RA8875_RED 0xF800
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#define RA8875_GREEN 0x07E0
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#define RA8875_CYAN 0x07FF
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#define RA8875_MAGENTA 0xF81F
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#define RA8875_YELLOW 0xFFE0
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#define RA8875_WHITE 0xFFFF
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// Command/Data pins for SPI
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#define RA8875_DATAWRITE 0x00
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#define RA8875_DATAREAD 0x40
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#define RA8875_CMDWRITE 0x80
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#define RA8875_CMDREAD 0xC0
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// Registers & bits
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#define RA8875_PWRR 0x01
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#define RA8875_PWRR_DISPON 0x80
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#define RA8875_PWRR_DISPOFF 0x00
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#define RA8875_PWRR_SLEEP 0x02
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#define RA8875_PWRR_NORMAL 0x00
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#define RA8875_PWRR_SOFTRESET 0x01
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#define RA8875_MRWC 0x02
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#define RA8875_GPIOX 0xC7
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#define RA8875_PLLC1 0x88
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#define RA8875_PLLC1_PLLDIV2 0x80
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#define RA8875_PLLC1_PLLDIV1 0x00
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#define RA8875_PLLC2 0x89
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#define RA8875_PLLC2_DIV1 0x00
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#define RA8875_PLLC2_DIV2 0x01
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#define RA8875_PLLC2_DIV4 0x02
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#define RA8875_PLLC2_DIV8 0x03
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#define RA8875_PLLC2_DIV16 0x04
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#define RA8875_PLLC2_DIV32 0x05
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#define RA8875_PLLC2_DIV64 0x06
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#define RA8875_PLLC2_DIV128 0x07
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#define RA8875_SYSR 0x10
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#define RA8875_SYSR_8BPP 0x00
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#define RA8875_SYSR_16BPP 0x0C
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#define RA8875_SYSR_MCU8 0x00
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#define RA8875_SYSR_MCU16 0x03
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#define RA8875_PCSR 0x04
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#define RA8875_PCSR_PDATR 0x00
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#define RA8875_PCSR_PDATL 0x80
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#define RA8875_PCSR_CLK 0x00
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#define RA8875_PCSR_2CLK 0x01
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#define RA8875_PCSR_4CLK 0x02
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#define RA8875_PCSR_8CLK 0x03
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#define RA8875_HDWR 0x14
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#define RA8875_HNDFTR 0x15
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#define RA8875_HNDFTR_DE_HIGH 0x00
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#define RA8875_HNDFTR_DE_LOW 0x80
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#define RA8875_HNDR 0x16
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#define RA8875_HSTR 0x17
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#define RA8875_HPWR 0x18
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#define RA8875_HPWR_LOW 0x00
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#define RA8875_HPWR_HIGH 0x80
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#define RA8875_VDHR0 0x19
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#define RA8875_VDHR1 0x1A
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#define RA8875_VNDR0 0x1B
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#define RA8875_VNDR1 0x1C
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#define RA8875_VSTR0 0x1D
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#define RA8875_VSTR1 0x1E
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#define RA8875_VPWR 0x1F
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#define RA8875_VPWR_LOW 0x00
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#define RA8875_VPWR_HIGH 0x80
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#define RA8875_HSAW0 0x30
|
||||
#define RA8875_HSAW1 0x31
|
||||
#define RA8875_VSAW0 0x32
|
||||
#define RA8875_VSAW1 0x33
|
||||
|
||||
#define RA8875_HEAW0 0x34
|
||||
#define RA8875_HEAW1 0x35
|
||||
#define RA8875_VEAW0 0x36
|
||||
#define RA8875_VEAW1 0x37
|
||||
|
||||
#define RA8875_MCLR 0x8E
|
||||
#define RA8875_MCLR_START 0x80
|
||||
#define RA8875_MCLR_STOP 0x00
|
||||
#define RA8875_MCLR_READSTATUS 0x80
|
||||
#define RA8875_MCLR_FULL 0x00
|
||||
#define RA8875_MCLR_ACTIVE 0x40
|
||||
|
||||
#define RA8875_DCR 0x90
|
||||
#define RA8875_DCR_LINESQUTRI_START 0x80
|
||||
#define RA8875_DCR_LINESQUTRI_STOP 0x00
|
||||
#define RA8875_DCR_LINESQUTRI_STATUS 0x80
|
||||
#define RA8875_DCR_CIRCLE_START 0x40
|
||||
#define RA8875_DCR_CIRCLE_STATUS 0x40
|
||||
#define RA8875_DCR_CIRCLE_STOP 0x00
|
||||
#define RA8875_DCR_FILL 0x20
|
||||
#define RA8875_DCR_NOFILL 0x00
|
||||
#define RA8875_DCR_DRAWLINE 0x00
|
||||
#define RA8875_DCR_DRAWSQUARE 0x10
|
||||
|
||||
#define RA8875_MWCR0 0x40
|
||||
#define RA8875_MWCR0_GFXMODE 0x00
|
||||
#define RA8875_MWCR0_TXTMODE 0x80
|
||||
|
||||
#define RA8875_CURH0 0x46
|
||||
#define RA8875_CURH1 0x47
|
||||
#define RA8875_CURV0 0x48
|
||||
#define RA8875_CURV1 0x49
|
||||
|
||||
#define RA8875_P1CR 0x8A
|
||||
#define RA8875_P1CR_ENABLE 0x80
|
||||
#define RA8875_P1CR_DISABLE 0x00
|
||||
#define RA8875_P1CR_CLKOUT 0x10
|
||||
#define RA8875_P1CR_PWMOUT 0x00
|
||||
|
||||
#define RA8875_P1DCR 0x8B
|
||||
|
||||
#define RA8875_P2CR 0x8C
|
||||
#define RA8875_P2CR_ENABLE 0x80
|
||||
#define RA8875_P2CR_DISABLE 0x00
|
||||
#define RA8875_P2CR_CLKOUT 0x10
|
||||
#define RA8875_P2CR_PWMOUT 0x00
|
||||
|
||||
#define RA8875_P2DCR 0x8D
|
||||
|
||||
#define RA8875_PWM_CLK_DIV1 0x00
|
||||
#define RA8875_PWM_CLK_DIV2 0x01
|
||||
#define RA8875_PWM_CLK_DIV4 0x02
|
||||
#define RA8875_PWM_CLK_DIV8 0x03
|
||||
#define RA8875_PWM_CLK_DIV16 0x04
|
||||
#define RA8875_PWM_CLK_DIV32 0x05
|
||||
#define RA8875_PWM_CLK_DIV64 0x06
|
||||
#define RA8875_PWM_CLK_DIV128 0x07
|
||||
#define RA8875_PWM_CLK_DIV256 0x08
|
||||
#define RA8875_PWM_CLK_DIV512 0x09
|
||||
#define RA8875_PWM_CLK_DIV1024 0x0A
|
||||
#define RA8875_PWM_CLK_DIV2048 0x0B
|
||||
#define RA8875_PWM_CLK_DIV4096 0x0C
|
||||
#define RA8875_PWM_CLK_DIV8192 0x0D
|
||||
#define RA8875_PWM_CLK_DIV16384 0x0E
|
||||
#define RA8875_PWM_CLK_DIV32768 0x0F
|
||||
|
||||
#define RA8875_TPCR0 0x70
|
||||
#define RA8875_TPCR0_ENABLE 0x80
|
||||
#define RA8875_TPCR0_DISABLE 0x00
|
||||
#define RA8875_TPCR0_WAIT_512CLK 0x00
|
||||
#define RA8875_TPCR0_WAIT_1024CLK 0x10
|
||||
#define RA8875_TPCR0_WAIT_2048CLK 0x20
|
||||
#define RA8875_TPCR0_WAIT_4096CLK 0x30
|
||||
#define RA8875_TPCR0_WAIT_8192CLK 0x40
|
||||
#define RA8875_TPCR0_WAIT_16384CLK 0x50
|
||||
#define RA8875_TPCR0_WAIT_32768CLK 0x60
|
||||
#define RA8875_TPCR0_WAIT_65536CLK 0x70
|
||||
#define RA8875_TPCR0_WAKEENABLE 0x08
|
||||
#define RA8875_TPCR0_WAKEDISABLE 0x00
|
||||
#define RA8875_TPCR0_ADCCLK_DIV1 0x00
|
||||
#define RA8875_TPCR0_ADCCLK_DIV2 0x01
|
||||
#define RA8875_TPCR0_ADCCLK_DIV4 0x02
|
||||
#define RA8875_TPCR0_ADCCLK_DIV8 0x03
|
||||
#define RA8875_TPCR0_ADCCLK_DIV16 0x04
|
||||
#define RA8875_TPCR0_ADCCLK_DIV32 0x05
|
||||
#define RA8875_TPCR0_ADCCLK_DIV64 0x06
|
||||
#define RA8875_TPCR0_ADCCLK_DIV128 0x07
|
||||
|
||||
#define RA8875_TPCR1 0x71
|
||||
#define RA8875_TPCR1_AUTO 0x00
|
||||
#define RA8875_TPCR1_MANUAL 0x40
|
||||
#define RA8875_TPCR1_VREFINT 0x00
|
||||
#define RA8875_TPCR1_VREFEXT 0x20
|
||||
#define RA8875_TPCR1_DEBOUNCE 0x04
|
||||
#define RA8875_TPCR1_NODEBOUNCE 0x00
|
||||
#define RA8875_TPCR1_IDLE 0x00
|
||||
#define RA8875_TPCR1_WAIT 0x01
|
||||
#define RA8875_TPCR1_LATCHX 0x02
|
||||
#define RA8875_TPCR1_LATCHY 0x03
|
||||
|
||||
#define RA8875_TPXH 0x72
|
||||
#define RA8875_TPYH 0x73
|
||||
#define RA8875_TPXYL 0x74
|
||||
|
||||
#define RA8875_INTC1 0xF0
|
||||
#define RA8875_INTC1_KEY 0x10
|
||||
#define RA8875_INTC1_DMA 0x08
|
||||
#define RA8875_INTC1_TP 0x04
|
||||
#define RA8875_INTC1_BTE 0x02
|
||||
|
||||
#define RA8875_INTC2 0xF1
|
||||
#define RA8875_INTC2_KEY 0x10
|
||||
#define RA8875_INTC2_DMA 0x08
|
||||
#define RA8875_INTC2_TP 0x04
|
||||
#define RA8875_INTC2_BTE 0x02
|
||||
Loading…
Reference in New Issue