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/*!
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* @file Adafruit_GC9A01A.cpp
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*
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* @mainpage GC9A01A TFT Display library for Adafruit_GFX
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*
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* @section intro_sec Introduction
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*
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* Library to provide GC9A01A display driver support in Adafruit_GFX.
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*
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* These displays use SPI to communicate, 4 or 5 pins are required
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* to interface (RST is optional).
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*
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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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*
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* @section dependencies Dependencies
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*
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* This library depends on <a href="https://github.com/adafruit/Adafruit_GFX">
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* Adafruit_GFX</a> being present on your system. Please make sure you have
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* installed the latest version before using this library.
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*
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* @section author Author
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*
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* Written by Limor "ladyada" Fried for Adafruit Industries.
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* GC9A01A adaptation by Phil "PaintYourDragon" Burgess.
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*
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* @section license License
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*
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* BSD license, all text here must be included in any redistribution.
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*
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*/
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#include "Adafruit_GC9A01A.h"
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#ifndef ARDUINO_STM32_FEATHER
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#include "pins_arduino.h"
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#ifndef RASPI
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#include "wiring_private.h"
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#endif
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#endif
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#include <limits.h>
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#if defined(ARDUINO_ARCH_ARC32) || defined(ARDUINO_MAXIM)
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#define SPI_DEFAULT_FREQ 16000000
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// Teensy 3.0, 3.1/3.2, 3.5, 3.6
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#elif defined(__MK20DX128__) || defined(__MK20DX256__) || \
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defined(__MK64FX512__) || defined(__MK66FX1M0__)
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#define SPI_DEFAULT_FREQ 40000000
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#elif defined(__AVR__) || defined(TEENSYDUINO)
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#define SPI_DEFAULT_FREQ 8000000
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#elif defined(ESP8266) || defined(ESP32)
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#define SPI_DEFAULT_FREQ 40000000
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#elif defined(RASPI)
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#define SPI_DEFAULT_FREQ 80000000
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#elif defined(ARDUINO_ARCH_STM32F1)
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#define SPI_DEFAULT_FREQ 36000000
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#else
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#define SPI_DEFAULT_FREQ 24000000 ///< Default SPI data clock frequency
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#endif
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#define MADCTL_MY 0x80 ///< Bottom to top
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#define MADCTL_MX 0x40 ///< Right to left
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#define MADCTL_MV 0x20 ///< Reverse Mode
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#define MADCTL_ML 0x10 ///< LCD refresh Bottom to top
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#define MADCTL_RGB 0x00 ///< Red-Green-Blue pixel order
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#define MADCTL_BGR 0x08 ///< Blue-Green-Red pixel order
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#define MADCTL_MH 0x04 ///< LCD refresh right to left
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/*!
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@brief Instantiate Adafruit GC9A01A driver with software SPI
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@param cs Chip select pin #
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@param dc Data/Command pin #
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@param mosi SPI MOSI pin #
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@param sclk SPI Clock pin #
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@param rst Reset pin # (optional, pass -1 if unused)
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@param miso SPI MISO pin # (optional, pass -1 if unused)
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*/
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Adafruit_GC9A01A::Adafruit_GC9A01A(int8_t cs, int8_t dc, int8_t mosi,
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int8_t sclk, int8_t rst, int8_t miso)
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: Adafruit_SPITFT(GC9A01A_TFTWIDTH, GC9A01A_TFTHEIGHT, cs, dc, mosi, sclk,
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rst, miso) {}
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/*!
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@brief Instantiate Adafruit GC9A01A driver with hardware SPI using the
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default SPI peripheral.
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@param cs Chip select pin # (OK to pass -1 if CS tied to GND).
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@param dc Data/Command pin # (required).
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@param rst Reset pin # (optional, pass -1 if unused).
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*/
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Adafruit_GC9A01A::Adafruit_GC9A01A(int8_t cs, int8_t dc, int8_t rst)
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: Adafruit_SPITFT(GC9A01A_TFTWIDTH, GC9A01A_TFTHEIGHT, cs, dc, rst) {}
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#if !defined(ESP8266)
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/*!
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@brief Instantiate Adafruit GC9A01A driver with hardware SPI using
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a specific SPI peripheral (not necessarily default).
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@param spiClass Pointer to SPI peripheral (e.g. &SPI or &SPI1).
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@param dc Data/Command pin # (required).
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@param cs Chip select pin # (optional, pass -1 if unused and
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CS is tied to GND).
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@param rst Reset pin # (optional, pass -1 if unused).
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*/
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Adafruit_GC9A01A::Adafruit_GC9A01A(SPIClass *spiClass, int8_t dc, int8_t cs,
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int8_t rst)
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: Adafruit_SPITFT(GC9A01A_TFTWIDTH, GC9A01A_TFTHEIGHT, spiClass, cs, dc,
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rst) {}
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#endif // end !ESP8266
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/*!
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@brief Instantiate Adafruit GC9A01A driver using parallel interface.
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@param busWidth If tft16 (enumeration in Adafruit_SPITFT.h), is a
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16-bit interface, else 8-bit.
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@param d0 Data pin 0 (MUST be a byte- or word-aligned LSB of a
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PORT register -- pins 1-n are extrapolated from this).
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@param wr Write strobe pin # (required).
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@param dc Data/Command pin # (required).
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@param cs Chip select pin # (optional, pass -1 if unused and CS
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is tied to GND).
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@param rst Reset pin # (optional, pass -1 if unused).
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@param rd Read strobe pin # (optional, pass -1 if unused).
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*/
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Adafruit_GC9A01A::Adafruit_GC9A01A(tftBusWidth busWidth, int8_t d0, int8_t wr,
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int8_t dc, int8_t cs, int8_t rst, int8_t rd)
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: Adafruit_SPITFT(GC9A01A_TFTWIDTH, GC9A01A_TFTHEIGHT, busWidth, d0, wr, dc,
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cs, rst, rd) {}
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// clang-format off
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// Initialization sequence came from some early code provided by the
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// manufacturer. Many of these registers are undocumented, some might
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// be unnecessary, just playing along...
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static const uint8_t PROGMEM initcmd[] = {
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GC9A01A_INREGEN2, 0,
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0xEB, 1, 0x14, // ?
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GC9A01A_INREGEN1, 0,
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GC9A01A_INREGEN2, 0,
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0xEB, 1, 0x14, // ?
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0x84, 1, 0x40, // ?
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0x85, 1, 0xFF, // ?
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0x86, 1, 0xFF, // ?
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0x87, 1, 0xFF, // ?
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0x88, 1, 0x0A, // ?
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0x89, 1, 0x21, // ?
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0x8A, 1, 0x00, // ?
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0x8B, 1, 0x80, // ?
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0x8C, 1, 0x01, // ?
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0x8D, 1, 0x01, // ?
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0x8E, 1, 0xFF, // ?
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0x8F, 1, 0xFF, // ?
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0xB6, 2, 0x00, 0x00, // ?
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GC9A01A_MADCTL, 1, MADCTL_MX | MADCTL_BGR,
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GC9A01A_COLMOD, 1, 0x05,
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0x90, 4, 0x08, 0x08, 0x08, 0x08, // ?
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0xBD, 1, 0x06, // ?
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0xBC, 1, 0x00, // ?
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0xFF, 3, 0x60, 0x01, 0x04, // ?
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GC9A01A1_POWER2, 1, 0x13,
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GC9A01A1_POWER3, 1, 0x13,
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GC9A01A1_POWER4, 1, 0x22,
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0xBE, 1, 0x11, // ?
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0xE1, 2, 0x10, 0x0E, // ?
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0xDF, 3, 0x21, 0x0c, 0x02, // ?
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GC9A01A_GAMMA1, 6, 0x45, 0x09, 0x08, 0x08, 0x26, 0x2A,
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GC9A01A_GAMMA2, 6, 0x43, 0x70, 0x72, 0x36, 0x37, 0x6F,
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GC9A01A_GAMMA3, 6, 0x45, 0x09, 0x08, 0x08, 0x26, 0x2A,
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GC9A01A_GAMMA4, 6, 0x43, 0x70, 0x72, 0x36, 0x37, 0x6F,
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0xED, 2, 0x1B, 0x0B, // ?
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0xAE, 1, 0x77, // ?
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0xCD, 1, 0x63, // ?
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// Unsure what this line (from manufacturer's boilerplate code) is
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// meant to do, but users reported issues, seems to work OK without:
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//0x70, 9, 0x07, 0x07, 0x04, 0x0E, 0x0F, 0x09, 0x07, 0x08, 0x03, // ?
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GC9A01A_FRAMERATE, 1, 0x34,
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0x62, 12, 0x18, 0x0D, 0x71, 0xED, 0x70, 0x70, // ?
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0x18, 0x0F, 0x71, 0xEF, 0x70, 0x70,
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0x63, 12, 0x18, 0x11, 0x71, 0xF1, 0x70, 0x70, // ?
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0x18, 0x13, 0x71, 0xF3, 0x70, 0x70,
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0x64, 7, 0x28, 0x29, 0xF1, 0x01, 0xF1, 0x00, 0x07, // ?
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0x66, 10, 0x3C, 0x00, 0xCD, 0x67, 0x45, 0x45, 0x10, 0x00, 0x00, 0x00, // ?
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0x67, 10, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x01, 0x54, 0x10, 0x32, 0x98, // ?
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0x74, 7, 0x10, 0x85, 0x80, 0x00, 0x00, 0x4E, 0x00, // ?
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0x98, 2, 0x3e, 0x07, // ?
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GC9A01A_TEON, 0,
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GC9A01A_INVON, 0,
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GC9A01A_SLPOUT, 0x80, // Exit sleep
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GC9A01A_DISPON, 0x80, // Display on
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0x00 // End of list
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};
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// clang-format on
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/*!
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@brief Initialize GC9A01A chip. Connects to the GC9A01A over SPI
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and sends initialization commands.
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@param freq Desired SPI clock frequency
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*/
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void Adafruit_GC9A01A::begin(uint32_t freq) {
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if (!freq)
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freq = SPI_DEFAULT_FREQ;
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initSPI(freq);
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if (_rst < 0) { // If no hardware reset pin...
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sendCommand(GC9A01A_SWRESET); // Engage software reset
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delay(150);
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}
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uint8_t cmd, x, numArgs;
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const uint8_t *addr = initcmd;
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while ((cmd = pgm_read_byte(addr++)) > 0) {
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x = pgm_read_byte(addr++);
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numArgs = x & 0x7F;
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sendCommand(cmd, addr, numArgs);
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addr += numArgs;
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if (x & 0x80)
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delay(150);
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}
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_width = GC9A01A_TFTWIDTH;
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_height = GC9A01A_TFTHEIGHT;
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}
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/*!
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@brief Set origin of (0,0) and orientation of TFT display
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@param m The index for rotation, from 0-3 inclusive
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*/
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void Adafruit_GC9A01A::setRotation(uint8_t m) {
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rotation = m % 4; // can't be higher than 3
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switch (rotation) {
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case 0:
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m = (MADCTL_MX | MADCTL_BGR);
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_width = GC9A01A_TFTWIDTH;
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_height = GC9A01A_TFTHEIGHT;
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break;
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case 1:
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m = (MADCTL_MV | MADCTL_BGR);
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_width = GC9A01A_TFTHEIGHT;
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_height = GC9A01A_TFTWIDTH;
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break;
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case 2:
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m = (MADCTL_MY | MADCTL_BGR);
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_width = GC9A01A_TFTWIDTH;
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_height = GC9A01A_TFTHEIGHT;
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break;
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case 3:
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m = (MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
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_width = GC9A01A_TFTHEIGHT;
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_height = GC9A01A_TFTWIDTH;
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break;
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}
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sendCommand(GC9A01A_MADCTL, &m, 1);
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}
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/*!
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@brief Enable/Disable display color inversion
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@param invert True to invert, False to have normal color
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*/
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void Adafruit_GC9A01A::invertDisplay(bool invert) {
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sendCommand(invert ? GC9A01A_INVON : GC9A01A_INVOFF);
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}
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/*!
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@brief Set the "address window" - the rectangle we will write to RAM
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with the next chunk of SPI data. The GC9A01A will automatically
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wrap the data as each row is filled.
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@param x1 TFT memory 'x' origin
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@param y1 TFT memory 'y' origin
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@param w Width of rectangle
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@param h Height of rectangle
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*/
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void Adafruit_GC9A01A::setAddrWindow(uint16_t x1, uint16_t y1, uint16_t w,
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uint16_t h) {
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uint16_t x2 = (x1 + w - 1), y2 = (y1 + h - 1);
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writeCommand(GC9A01A_CASET); // Column address set
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SPI_WRITE16(x1);
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SPI_WRITE16(x2);
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writeCommand(GC9A01A_RASET); // Row address set
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SPI_WRITE16(y1);
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SPI_WRITE16(y2);
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writeCommand(GC9A01A_RAMWR); // Write to RAM
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}
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@@ -0,0 +1,121 @@
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/*!
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* @file Adafruit_GC9A01A.h
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*
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* Library to provide GC9A01A display driver support in Adafruit_GFX.
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*
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* Adafruit invests time and resources providing this open source code,
|
||||
* please support Adafruit and open-source hardware by purchasing
|
||||
* products from Adafruit!
|
||||
*
|
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* This library depends on <a href="https://github.com/adafruit/Adafruit_GFX">
|
||||
* Adafruit_GFX</a> being present on your system. Please make sure you have
|
||||
* installed the latest version before using this library.
|
||||
*
|
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* Written by Limor "ladyada" Fried for Adafruit Industries.
|
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* GC9A01A adaptation by Phil "PaintYourDragon" Burgess.
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*
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* BSD license, all text here must be included in any redistribution.
|
||||
*
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*/
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#pragma once
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#include "Adafruit_GFX.h"
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#include "Arduino.h"
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#include "Print.h"
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#include <Adafruit_SPITFT.h>
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#include <Adafruit_SPITFT_Macros.h>
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#include <SPI.h>
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#define GC9A01A_TFTWIDTH 240 ///< Display width in pixels
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#define GC9A01A_TFTHEIGHT 240 ///< Display height in pixels
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#define GC9A01A_SWRESET 0x01 ///< Software Reset (maybe, not documented)
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#define GC9A01A_RDDID 0x04 ///< Read display identification information
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#define GC9A01A_RDDST 0x09 ///< Read Display Status
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#define GC9A01A_SLPIN 0x10 ///< Enter Sleep Mode
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#define GC9A01A_SLPOUT 0x11 ///< Sleep Out
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#define GC9A01A_PTLON 0x12 ///< Partial Mode ON
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#define GC9A01A_NORON 0x13 ///< Normal Display Mode ON
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#define GC9A01A_INVOFF 0x20 ///< Display Inversion OFF
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#define GC9A01A_INVON 0x21 ///< Display Inversion ON
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#define GC9A01A_DISPOFF 0x28 ///< Display OFF
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#define GC9A01A_DISPON 0x29 ///< Display ON
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#define GC9A01A_CASET 0x2A ///< Column Address Set
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#define GC9A01A_RASET 0x2B ///< Row Address Set
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#define GC9A01A_RAMWR 0x2C ///< Memory Write
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#define GC9A01A_PTLAR 0x30 ///< Partial Area
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#define GC9A01A_VSCRDEF 0x33 ///< Vertical Scrolling Definition
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#define GC9A01A_TEOFF 0x34 ///< Tearing Effect Line OFF
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#define GC9A01A_TEON 0x35 ///< Tearing Effect Line ON
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#define GC9A01A_MADCTL 0x36 ///< Memory Access Control
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#define GC9A01A_VSCRSADD 0x37 ///< Vertical Scrolling Start Address
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#define GC9A01A_IDLEOFF 0x38 ///< Idle mode OFF
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#define GC9A01A_IDLEON 0x39 ///< Idle mode ON
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#define GC9A01A_COLMOD 0x3A ///< Pixel Format Set
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#define GC9A01A_CONTINUE 0x3C ///< Write Memory Continue
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||||
#define GC9A01A_TEARSET 0x44 ///< Set Tear Scanline
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#define GC9A01A_GETLINE 0x45 ///< Get Scanline
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#define GC9A01A_SETBRIGHT 0x51 ///< Write Display Brightness
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#define GC9A01A_SETCTRL 0x53 ///< Write CTRL Display
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||||
#define GC9A01A1_POWER7 0xA7 ///< Power Control 7
|
||||
#define GC9A01A_TEWC 0xBA ///< Tearing effect width control
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#define GC9A01A1_POWER1 0xC1 ///< Power Control 1
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#define GC9A01A1_POWER2 0xC3 ///< Power Control 2
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#define GC9A01A1_POWER3 0xC4 ///< Power Control 3
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||||
#define GC9A01A1_POWER4 0xC9 ///< Power Control 4
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#define GC9A01A_RDID1 0xDA ///< Read ID 1
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#define GC9A01A_RDID2 0xDB ///< Read ID 2
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#define GC9A01A_RDID3 0xDC ///< Read ID 3
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#define GC9A01A_FRAMERATE 0xE8 ///< Frame rate control
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#define GC9A01A_SPI2DATA 0xE9 ///< SPI 2DATA control
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#define GC9A01A_INREGEN2 0xEF ///< Inter register enable 2
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#define GC9A01A_GAMMA1 0xF0 ///< Set gamma 1
|
||||
#define GC9A01A_GAMMA2 0xF1 ///< Set gamma 2
|
||||
#define GC9A01A_GAMMA3 0xF2 ///< Set gamma 3
|
||||
#define GC9A01A_GAMMA4 0xF3 ///< Set gamma 4
|
||||
#define GC9A01A_IFACE 0xF6 ///< Interface control
|
||||
#define GC9A01A_INREGEN1 0xFE ///< Inter register enable 1
|
||||
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||||
// Color definitions
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||||
#define GC9A01A_BLACK 0x0000 ///< 0, 0, 0
|
||||
#define GC9A01A_NAVY 0x000F ///< 0, 0, 123
|
||||
#define GC9A01A_DARKGREEN 0x03E0 ///< 0, 125, 0
|
||||
#define GC9A01A_DARKCYAN 0x03EF ///< 0, 125, 123
|
||||
#define GC9A01A_MAROON 0x7800 ///< 123, 0, 0
|
||||
#define GC9A01A_PURPLE 0x780F ///< 123, 0, 123
|
||||
#define GC9A01A_OLIVE 0x7BE0 ///< 123, 125, 0
|
||||
#define GC9A01A_LIGHTGREY 0xC618 ///< 198, 195, 198
|
||||
#define GC9A01A_DARKGREY 0x7BEF ///< 123, 125, 123
|
||||
#define GC9A01A_BLUE 0x001F ///< 0, 0, 255
|
||||
#define GC9A01A_GREEN 0x07E0 ///< 0, 255, 0
|
||||
#define GC9A01A_CYAN 0x07FF ///< 0, 255, 255
|
||||
#define GC9A01A_RED 0xF800 ///< 255, 0, 0
|
||||
#define GC9A01A_MAGENTA 0xF81F ///< 255, 0, 255
|
||||
#define GC9A01A_YELLOW 0xFFE0 ///< 255, 255, 0
|
||||
#define GC9A01A_WHITE 0xFFFF ///< 255, 255, 255
|
||||
#define GC9A01A_ORANGE 0xFD20 ///< 255, 165, 0
|
||||
#define GC9A01A_GREENYELLOW 0xAFE5 ///< 173, 255, 41
|
||||
#define GC9A01A_PINK 0xFC18 ///< 255, 130, 198
|
||||
|
||||
/*!
|
||||
@brief Class to manage hardware interface with GC9A01A chipset.
|
||||
*/
|
||||
class Adafruit_GC9A01A : public Adafruit_SPITFT {
|
||||
public:
|
||||
Adafruit_GC9A01A(int8_t _CS, int8_t _DC, int8_t _MOSI, int8_t _SCLK,
|
||||
int8_t _RST = -1, int8_t _MISO = -1);
|
||||
Adafruit_GC9A01A(int8_t _CS, int8_t _DC, int8_t _RST = -1);
|
||||
#if !defined(ESP8266)
|
||||
Adafruit_GC9A01A(SPIClass *spiClass, int8_t dc, int8_t cs = -1,
|
||||
int8_t rst = -1);
|
||||
#endif // end !ESP8266
|
||||
Adafruit_GC9A01A(tftBusWidth busWidth, int8_t d0, int8_t wr, int8_t dc,
|
||||
int8_t cs = -1, int8_t rst = -1, int8_t rd = -1);
|
||||
|
||||
void begin(uint32_t freq = 0);
|
||||
void setRotation(uint8_t r);
|
||||
void invertDisplay(bool i);
|
||||
|
||||
void setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
|
||||
};
|
||||
@@ -0,0 +1,18 @@
|
||||
# GC9A01A Arduino Library
|
||||
|
||||
Library to provide GC9A01A display driver support in Adafruit_GFX.
|
||||
|
||||
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.
|
||||
GC9A01A adaptation by Phil "PaintYourDragon" Burgess.
|
||||
BSD license, all text above must be included in any redistribution
|
||||
|
||||
Requires the Adafruit_GFX library for Arduino.
|
||||
|
||||
EXTRAS FOLDER: Adafruit_Arcada_FeatherM4.h file can be used with
|
||||
Adafruit_Arcada library to make the M4_Eyes sketch compile on Adafruit
|
||||
Feather M4 with this display (second display has not been tested,
|
||||
would require setting up a second SPI SERCOM, but in theory it should work).
|
||||
@@ -0,0 +1,10 @@
|
||||
name=Adafruit GC9A01A
|
||||
version=1.1.1
|
||||
author=Adafruit
|
||||
maintainer=Adafruit <[email protected]>
|
||||
sentence=Library for GC9A01A displays
|
||||
paragraph=Library for GC9A01A displays
|
||||
category=Display
|
||||
url=https://github.com/Adafruit/Adafruit_GC9A01A
|
||||
architectures=*
|
||||
depends=Adafruit GFX Library
|
||||
Reference in new issue
Block a user