EMTime/libopencm3-examples
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Pulling in some of the makefile changes that are in master into this

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branch to make merging easier later on.
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cmcmanis
2014-02-09 13:39:08 -08:00
committed by Piotr Esden-Tempski
parent 4defd3e1d2
commit ae9c116e30
14 changed files with 1939 additions and 0 deletions
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examples/stm32/f4/stm32f4-disco/lcd-serial/lcd-serial.c Normal file
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/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Chuck McManis <cmcmanis@mcmanis.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <math.h>
#include "clock.h"
#include "console.h"
#include "sdram.h"
#include "lcd-spi.h"
#include "gfx.h"
/* Convert degrees to radians */
#define d2r(d) ((d) * 6.2831853 / 360.0)
/*
* This is our example, the heavy lifing is actually in lcd-spi.c but
* this drives that code.
*/
int main(void) {
int p1, p2, p3;
clock_setup();
console_setup(115200);
sdram_init();
lcd_spi_init();
console_puts("LCD Initialized\n");
console_puts("Should have a checker pattern, press any key to proceed\n");
(void) console_getc(1);
gfx_init(lcd_draw_pixel, 240, 320);
gfx_fillScreen(LCD_GREY);
gfx_fillRoundRect(10, 10, 220, 220, 5, LCD_WHITE);
gfx_drawRoundRect(10, 10, 220, 220, 5, LCD_RED);
gfx_fillCircle(20, 250, 10, LCD_RED);
gfx_fillCircle(120, 250, 10, LCD_GREEN);
gfx_fillCircle(220, 250, 10, LCD_BLUE);
gfx_setTextSize(2);
gfx_setCursor(15, 25);
gfx_puts("STM32F4-DISCO");
gfx_setTextSize(1);
gfx_setCursor(15, 49);
gfx_puts("Simple example to put some");
gfx_setCursor(15, 60);
gfx_puts("stuff on the LCD screen.");
lcd_show_frame();
console_puts("Now it has a bit of structured graphics.\n");
console_puts("Press a key for some simple animation.\n");
(void) console_getc(1);
gfx_setTextColor(LCD_YELLOW, LCD_BLACK);
gfx_setTextSize(3);
p1 = 0;
p2 = 45;
p3 = 90;
while (1) {
gfx_fillScreen(LCD_BLACK);
gfx_setCursor(15, 36);
gfx_puts("PLANETS!");
gfx_fillCircle( 120, 160, 40, LCD_YELLOW);
gfx_drawCircle( 120, 160, 55, LCD_GREY);
gfx_drawCircle( 120, 160, 75, LCD_GREY);
gfx_drawCircle( 120, 160, 100, LCD_GREY);
gfx_fillCircle( 120 + (sin(d2r(p1)) * 55),
160 + (cos(d2r(p1)) * 55), 5, LCD_RED);
gfx_fillCircle( 120 + (sin(d2r(p2)) * 75),
160 + (cos(d2r(p2)) * 75), 10, LCD_WHITE);
gfx_fillCircle( 120 + (sin(d2r(p3)) * 100),
160 + (cos(d2r(p3)) * 100), 8, LCD_BLUE);
p1 = (p1 + 3) % 360;
p2 = (p2 + 2) % 360;
p3 = (p3 + 1) % 360;
lcd_show_frame();
}
}