Add an Arduino Sketch project.
It shows how to add ugfx as a sketch library.remotes/origin_old/ugfx_release_2.6
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#include <Arduino.h>
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#include <SPI.h>
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#include <Wire.h>
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#include "board_SSD1331.h"
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#define LCD_BOARD_ID 0 // 0 or 1 - set by the position of a resistor near SX1505 (see schematic and board design)
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// GPIO Pins
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#define GPIO_DC 0x01
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#define GPIO_CS 0x02
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#define GPIO_RES 0x08
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#define GPIO_BTN1 0x10
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#define GPIO_BTN2 0x20
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#define GPIO_BTN3 0x40
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#define GPIO_BTN4 0x80
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#define GPIO_CMD_START ~(GPIO_CS|GPIO_DC)
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#define GPIO_DATA_START ~GPIO_CS
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#define GPIO_TRANSFER_END GPIO_CS
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//GPIO Registers
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#define GPIO_RegData 0x00
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#define GPIO_RegDir 0x01
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#define GPIO_RegPullUp 0x02
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// Wire address of the SX1505 chip
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#define GPIO_ADDR 0x20
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static void writeGPIO(uint8_t regAddr, uint8_t regData)
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{
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uint8_t oldTWBR=TWBR;
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TWBR=0;
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Wire.beginTransmission(GPIO_ADDR + LCD_BOARD_ID);
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Wire.write(regAddr);
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Wire.write(regData);
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Wire.endTransmission();
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TWBR=oldTWBR;
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}
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static bool isDataMode = false;
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static bool isCmdMode = false;
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void SSD1331_init_board(void) {
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//setup GPIO, reset SSD1331
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writeGPIO(GPIO_RegData,~GPIO_RES);//reset low, CS/other pins high
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writeGPIO(GPIO_RegDir,~GPIO_RES);//set reset to output
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delay(5);
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writeGPIO(GPIO_RegDir,~(GPIO_CS|GPIO_DC));//reset to input, CS/DC output
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writeGPIO(GPIO_RegPullUp,GPIO_BTN1|GPIO_BTN2|GPIO_BTN3|GPIO_BTN4);//button pullup enable
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//init SPI
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SPI.begin();
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SPI.setDataMode(SPI_MODE0);//wrong mode, works because we're only writing. this mode is compatible with SD cards.
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SPI.setClockDivider(SPI_CLOCK_DIV2);
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isDataMode = isCmdMode = false;
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}
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void SSD1331_setpin_reset(int state) {
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// Ignore this as we did it in the init_board
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}
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void SSD1331_aquirebus(void) {
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// Do nothing as we do it in the data transfer
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}
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void SSD1331_releasebus(void) {
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if (!isDataMode && !isCmdMode) return;
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writeGPIO(GPIO_RegData,GPIO_TRANSFER_END);
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isDataMode = isCmdMode = false;
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}
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void SSD1331_write_cmd(uint8_t cmd) {
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if (!isCmdMode) {
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writeGPIO(GPIO_RegData,GPIO_CMD_START);
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isDataMode = false;
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isCmdMode = true;
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}
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SPI.transfer(cmd);
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}
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void SSD1331_write_data(uint8_t data) {
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if (!isDataMode) {
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writeGPIO(GPIO_RegData,GPIO_DATA_START);
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isDataMode = true;
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isCmdMode = false;
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}
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SPI.transfer(data);
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}
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/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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#ifndef _GDISP_LLD_BOARD_H
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#define _GDISP_LLD_BOARD_H
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#define init_board(g) SSD1331_init_board()
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#define post_init_board(g)
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#define setpin_reset(g, state) SSD1331_setpin_reset(state)
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#define acquire_bus(g) SSD1331_aquirebus()
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#define release_bus(g) SSD1331_releasebus()
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#define write_cmd(g, cmd) SSD1331_write_cmd(cmd)
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#define write_data(g, data) SSD1331_write_data(data)
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#ifdef __cplusplus
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extern "C" {
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#endif
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void SSD1331_init_board(void);
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void SSD1331_setpin_reset(int state);
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void SSD1331_aquirebus(void);
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void SSD1331_releasebus(void);
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void SSD1331_write_cmd(uint8_t cmd);
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void SSD1331_write_data(uint8_t data);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _GDISP_LLD_BOARD_H */
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#include "ugfx/drivers/gdisp/SSD1331/gdisp_lld_SSD1331.c"
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#include "ugfx/drivers/gdisp/SSD1331/gdisp_lld_config.h"
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#include "ugfx/src/gfx_mk.c"
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#include "ugfx/gfx.h"
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/*
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* Copyright (c) 2012, 2013, Joel Bodenmann aka Tectu <joel@unormal.org>
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* Copyright (c) 2012, 2013, Andrew Hannam aka inmarket
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _GFXCONF_H
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#define _GFXCONF_H
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/* The operating system to use. One of these must be defined - preferably in your Makefile */
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//#define GFX_USE_OS_CHIBIOS FALSE
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//#define GFX_USE_OS_WIN32 FALSE
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//#define GFX_USE_OS_LINUX FALSE
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//#define GFX_USE_OS_OSX FALSE
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#define GFX_USE_OS_ARDUINO TRUE
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/* GFX sub-systems to turn on */
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#define GFX_USE_GDISP TRUE
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/* Features for the GDISP sub-system. */
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#define GDISP_NEED_VALIDATION TRUE
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#define GDISP_NEED_CLIP TRUE
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#endif /* _GFXCONF_H */
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This is a working Arduino project for the TinyScreen ATmega board.
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To use this with the Arduino IDE Development Environment follow these steps...
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1/ Copy the gfx directory from this directory to your Arduino library. eg <Documents>/Arduino/libraries/gfx
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3/ Create a subdirectory under "gfx" called "ugfx" and copy the entire ugfx system to that directory.
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4/ In the "gfx" directory adjust the gfxconf.h for your project.
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5/ In the gfx directory create a .c file for each driver that you want to use that contains a single line
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to #include the driver source in the repository file. For a GDISP driver you will also need to create
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a gdisp_lld_config.h file that contains a single line that #include's the gdisp_lld_config.h file for
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the GDISP driver. Don't forget to add the board files for your drivers.
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This example has the files for the SSD1331 TinyScreen display.
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6/ Copy the example ugfx_test.ino file to your Arduino projects directory eg <Documents>/Arduino/ugfx_test
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7/ Modify the ugfx_test.ino project to suit.
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8/ Remember that for ATmega platforms RAM and FLASH are very limited. Be careful which ugfx options you turn on.
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Arduino ARM based boards are much less limited.
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#include <Wire.h>
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#include <SPI.h>
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#include <gfx.h>
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void setup() {
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coord_t width, height;
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coord_t i, j;
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pinMode(13, OUTPUT);
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// Initialize and clear the display
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gfxInit();
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#if 1
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// Get the screen size
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width = gdispGetWidth();
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height = gdispGetHeight();
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// Code Here
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gdispDrawBox(10, 10, width / 2, height / 2, Yellow);
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gdispFillArea(width / 2, height / 2, width / 2 - 10, height / 2 - 10, Blue);
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gdispDrawLine(5, 30, width - 50, height - 40, Red);
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for (i = 5, j = 0; i < width && j < height; i += 7, j += i / 20)
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gdispDrawPixel(i, j, White);
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#endif
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}
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void loop() {
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// put your main code here, to run repeatedly:
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digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
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delay(500);
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//gfxSleepMilliseconds(500);
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digitalWrite(13, LOW); // turn the LED on (HIGH is the voltage level)
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delay(500);
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//gfxSleepMilliseconds(500);
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}
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