// Built with BFTC Rev. 1.0.0, gio 28 agosto 2014 11:53:51

/*

    Copyright 2014 Digital Technology Art SRL

    This file is part of Blackfin Toolchain (BFTC) project.

    BFTC is free software: you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation, either version 3 of the License, or

    (at your option) any later version.

    BFTC 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 General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with Name-Program.  If not, see <http://www.gnu.org/licenses/>.

*/

// Example that show how to use touch screen library

//

#include "main.h"

int main(void)

{

bool ok;

char buf[32];

int sx, sy, ox = -1, oy;

Set_PLL(16, 4); // CORE: 25MHz * 16 = 400MHz, SCLK: 400MHz / 4 = 100MHz

Set_Port(); // Set the port according to project set

Set_Uart0(115200); // printf is redirected to UART0

// Init display

Set_SPI(SPI_PP);

Set_ExpansionPort(0xF0);// Init control bit on expansion port for LCD controls

Set_TFTlightPower(true);// Turn on backligth

Set_TFTlight(15); // Set maximum brightness

Set_SPI(SPI_TFT); // Switch to graphics SPI channel

Set_TFTinit(); // Init LCD controller

gxClear(TFT_BLACK); // Clear the screen

gxFontColorSize(TFT_YELLOW, TFT_BLACK, 1, 1);

gxPutString(10, 220, "TOUCH SCREEN TEST");

// Init Touch Screen

TS_Open();

TS_Enable(true); // Enable read of the pen

while(1) // Main loop

{

if(TS_Check()) // Check if Touch Screen is active

{

// Read cursor position

ok = TS_ReadCursor(&sx, &sy);

if(ok)

{

// Disable TS

TS_Enable(false);

// Dump on LCD coordinates and cursor

Set_SPI(SPI_TFT); // Switch to graphics SPI channel

if(ox >= 0) // Remove previous cross

{

gxLine(ox - 10, oy, ox + 10, oy, TFT_BLACK);

gxLine(ox, oy - 10, ox, oy + 10, TFT_BLACK);

}

// Draw a cross in the cursor position

gxLine(sx - 10, sy, sx + 10, sy, TFT_WHITE);

gxLine(sx, sy - 10, sx, sy + 10, TFT_WHITE);

// Display coordinates

sprintf(buf, "X = %3d, Y = %3d", sx, sy);

gxPutString(10, 10, buf);

// Set SPI on TSC channel

Set_SPI(SPI_TSC); // Switch to touch screen the SPI channel

ox = sx; oy = sy;

// Enable touch screen read

TS_Enable(true);

}

}

}

return 0;

}