Diff: TFT_4DGL_main.cpp
- Revision:
- 1:1c83ae41c4ab
- Parent:
- 0:772a63029ab0
- Child:
- 2:83393983a43f
--- a/TFT_4DGL_main.cpp Sun Jul 18 14:43:48 2010 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,380 +0,0 @@
-//
-// TFT_4DGL is a class to drive 4D Systems TFT touch screens
-//
-// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
-//
-// TFT_4DGL 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.
-//
-// TFT_4DGL 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 TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
-
-#include "mbed.h"
-#include "TFT_4DGL.h"
-
-Serial pc(USBTX,USBRX);
-
-//******************************************************************************************************
-TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx), _rst(rst) { // Constructor
-
-#if DEBUGMODE
- pc.baud(115200);
-
- pc.printf("\n\n\n");
- pc.printf("********************\n");
- pc.printf("TFT_4DGL CONSTRUCTOR\n");
- pc.printf("********************\n");
-#endif
-
- _rst = 1; // put RESET pin to high to start TFT screen
-
- reset();
- autobaud(); // send autobaud command
- version(); // get version information
- cls(); // clear screen
-
- current_col = 0; // initial cursor col
- current_row = 0; // initial cursor row
- current_color = WHITE; // initial text color
- current_orientation = IS_PORTRAIT; // initial screen orientation
-
- set_font(FONT_5X7); // initial font
- text_mode(OPAQUE); // initial texr mode
-}
-
-//******************************************************************************************************
-void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
-
- _cmd.putc(c);
- wait_ms(1);
-
-#if DEBUGMODE
- pc.printf(" Char sent : 0x%02X\n",c);
-#endif
-
-}
-
-//******************************************************************************************************
-void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
-
- while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
-}
-
-//******************************************************************************************************
-int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
-
-#if DEBUGMODE
- pc.printf("\n");
- pc.printf("New COMMAND : 0x%02X\n", command[0]);
-#endif
- int i, resp = 0;
- freeBUFFER();
-
- for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
-
- while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
- if (_cmd.readable()) resp = _cmd.getc(); // read response if any
- switch (resp) {
- case ACK : // if OK return 1
- resp = 1;
- break;
- case NAK : // if NOK return -1
- resp = -1;
- break;
- default :
- resp = 0; // else return 0
- break;
- }
-#if DEBUGMODE
- pc.printf(" Answer received : %d\n",resp);
-#endif
-
- return resp;
-}
-
-//**************************************************************************
-void TFT_4DGL :: reset() { // Reset Screen
-
- _rst = 0; // put RESET pin to low
- wait_ms(TEMPO); // wait a few milliseconds for command reception
- _rst = 1; // put RESET back to high
- wait(3); // wait 3s for screen to restart
-
- freeBUFFER(); // clean buffer from possible garbage
-}
-
-//**************************************************************************
-void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
- char command[1] = "";
- command[0] = AUTOBAUD;
- writeCOMMAND(command, 1);
-}
-
-//**************************************************************************
-void TFT_4DGL :: cls() { // clear screen
- char command[1] = "";
- command[0] = CLS;
- writeCOMMAND(command, 1);
-}
-
-//**************************************************************************
-void TFT_4DGL :: version() { // get API version
- char command[2] = "";
- command[0] = VERSION;
- command[1] = OFF;
- readVERSION(command, 2);
-}
-
-//**************************************************************************
-void TFT_4DGL :: baudrate(int speed) { // set screen baud rate
- char command[2]= "";
- command[0] = BAUDRATE;
- switch (speed) {
- case 110 :
- command[1] = BAUD_110;
- break;
- case 300 :
- command[1] = BAUD_300;
- break;
- case 600 :
- command[1] = BAUD_600;
- break;
- case 1200 :
- command[1] = BAUD_1200;
- break;
- case 2400 :
- command[1] = BAUD_2400;
- break;
- case 4800 :
- command[1] = BAUD_4800;
- break;
- case 9600 :
- command[1] = BAUD_9600;
- break;
- case 14400 :
- command[1] = BAUD_14400;
- break;
- case 19200 :
- command[1] = BAUD_19200;
- break;
- case 31250 :
- command[1] = BAUD_31250;
- break;
- case 38400 :
- command[1] = BAUD_38400;
- break;
- case 56000 :
- command[1] = BAUD_56000;
- break;
- case 57600 :
- command[1] = BAUD_57600;
- break;
- case 115200 :
- command[1] = BAUD_115200;
- break;
- case 128000 :
- command[1] = BAUD_128000;
- break;
- case 256000 :
- command[1] = BAUD_256000;
- break;
- default :
- command[1] = BAUD_9600;
- speed = 9600;
- break;
- }
-
- int i, resp = 0;
-
- freeBUFFER();
-
- for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
- _cmd.baud(speed); // set mbed to same speed
-
- while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
-
- if (_cmd.readable()) resp = _cmd.getc(); // read response if any
- switch (resp) {
- case ACK : // if OK return 1
- resp = 1;
- break;
- case NAK : // if NOK return -1
- resp = -1;
- break;
- default :
- resp = 0; // else return 0
- break;
- }
-}
-
-//******************************************************************************************************
-int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
-
- int i, temp = 0, resp = 0;
- char response[5] = "";
-
- freeBUFFER();
-
- for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
-
- while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
-
- while (_cmd.readable()) {
- temp = _cmd.getc();
- response[resp++] = (char)temp;
- }
- switch (resp) {
- case 5 : // if OK populate data and return 1
- type = response[0];
- revision = response[1];
- firmware = response[2];
- reserved1 = response[3];
- reserved2 = response[4];
- resp = 1;
- break;
- default :
- resp = 0; // else return 0
- break;
- }
- return resp;
-}
-
-//****************************************************************************************************
-void TFT_4DGL :: background_color(int color) { // set screen background color
- char command[3]= ""; // input color is in 24bits like 0xRRGGBB
-
- command[0] = BCKGDCOLOR;
-
- int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
- int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
- int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
-
- command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
- command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
-
- writeCOMMAND(command, 3);
-}
-
-//****************************************************************************************************
-void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
- char command[3]= "";
-
- command[0] = DISPCONTROL;
- command[1] = mode;
- command[2] = value;
-
- if (mode == ORIENTATION) {
- switch (value) {
- case LANDSCAPE :
- current_orientation = IS_LANDSCAPE;
- break;
- case LANDSCAPE_R :
- current_orientation = IS_LANDSCAPE;
- break;
- case PORTRAIT :
- current_orientation = IS_PORTRAIT;
- break;
- case PORTRAIT_R :
- current_orientation = IS_PORTRAIT;
- break;
- }
- }
- writeCOMMAND(command, 3);
- set_font(current_font);
-}
-
-//****************************************************************************************************
-void TFT_4DGL :: set_volume(char value) { // set sound volume to value
- char command[2]= "";
-
- command[0] = SETVOLUME;
- command[1] = value;
-
- writeCOMMAND(command, 2);
-}
-
-
-//******************************************************************************************************
-void TFT_4DGL :: getTOUCH(char *command, int number, int *x, int *y) { // read screen info and populate data
-
-#if DEBUGMODE
- pc.printf("\n");
- pc.printf("New COMMAND : 0x%02X\n", command[0]);
-#endif
- int i, temp = 0, resp = 0;
- char response[5] = "";
-
- freeBUFFER();
-
- for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
-
- while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
-
- while (_cmd.readable()) {
- temp = _cmd.getc();
- response[resp++] = (char)temp;
- }
-
-#if DEBUGMODE
- pc.printf(" Answer received %d : 0x%02X 0x%02X 0x%02X 0x%02X\n", resp, response[0], response[1], response[2], response[3]);
-#endif
-
- switch (resp) {
- case 4 : // if OK populate data
- *x = ((response[0]<<8)+ response[1]) * (response[0] != 0xFF);
- *y = ((response[2]<<8)+ response[3]) * (response[2] != 0xFF);
- break;
- default :
- *x = -1;
- *y = -1;
- break;
- }
-
-#if DEBUGMODE
- pc.printf(" X,Y : %03d,%03d\n", *x, *y);
-#endif
-}
-
-//******************************************************************************************************
-int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
-
-#if DEBUGMODE
- pc.printf("\n");
- pc.printf("New COMMAND : 0x%02X\n", command[0]);
-#endif
-
- int i, temp = 0, resp = 0;
- char response[5] = "";
-
- freeBUFFER();
-
- for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
-
- while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
-
- while (_cmd.readable()) {
- temp = _cmd.getc();
- response[resp++] = (char)temp;
- }
- switch (resp) {
- case 4 :
- resp = (int)response[1]; // if OK populate data
- break;
- default :
- resp = -1; // else return 0
- break;
- }
-
-#if DEBUGMODE
- pc.printf(" Answer received : %d\n", resp);
-#endif
-
- return resp;
-}
\ No newline at end of file
Stephane ROCHON
4D SGC TFT Screen