File content as of revision 18:829f3e2c064c:

//
//  Picaso_4DGL-32PTU is a class to drive 4D Systems TFT touch screens with PICASO processor
//  Tested with NUCLEO L152RE development board
//  Copyright (C) <2016> Rihards Balass <rihards.balass@gmail.com>
//
// Picaso_4DGL-32PTU 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.
//
// Picaso_4DGL-32PTU 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 can see GNU General Public License at <http://www.gnu.org/licenses/>.
//

#include "mbed.h"
#include "Picaso_4DGL-32PTU.h"


//**************************************************************************
bool PICASO_4DGL :: getResponse(int count) {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer...");
#endif
    //pc.printf("\n\r count = %i, index = %i", count, index);
    while (index < count) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    for (int i = 0; i < index; i++) {
        pc.printf("%02X ", rxBuf[i]);
    }
    pc.printf("\n\r");
#endif
    if (rxBuf[0] == 0x06) {
        index = 0; // set buffer index to 0
        return true;
    }
    else {
        index = 0;
        return false;
    }
}

//**************************************************************************
bool PICASO_4DGL :: calculateOrbitResponse() {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer...");
#endif
    while (index < 5) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    for (int i = 0; i < index; i++) {
        pc.printf("%02X ", rxBuf[i]);
    }
    pc.printf("\n\r");
#endif
    Xdest = rxBuf[1] << 8 | rxBuf[2];
    Ydest = rxBuf[3] << 8 | rxBuf[4];
#if DEBUGMODE
    pc.printf("\n\r DEBUG: New coordiantes = %i x %i\n\r", Xdest, Ydest);
#endif
    index = 0; // set buffer index to 0
    return true;
}


//**************************************************************************
short PICASO_4DGL :: getGraphicsResponse() {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer...");
#endif
    while (index < 3) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    for (int i = 0; i < index; i++) {
        pc.printf("%02X ", rxBuf[i]);
    }
    pc.printf("\n\r");
#endif
    short answer = rxBuf[1] << 8 | rxBuf[2]; // set response variable
    index = 0; // set buffer index to 0
    return answer;
}

//**************************************************************************
short PICASO_4DGL :: mediaInitResponse() {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer...");
#endif
    while (index < 3) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    for (int i = 0; i < index; i++) {
        pc.printf("%02X ", rxBuf[i]);
    }
    pc.printf("\n\r");
#endif
    short answer = rxBuf[1] << 8 | rxBuf[2];
    index = 0;
    return answer;
}

//**************************************************************************
bool PICASO_4DGL :: readSectorResponse(int count) {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer");
#endif

    while (index < count) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    pc.printf("%02X %02X %02X\n\r", rxBuf[0], rxBuf[1], rxBuf[2]);
#endif
    
    int j = 3;
    for (int i = 0; i < BUFFER_SIZE; i++) {
        buffer[i] = rxBuf[j];
        j++;
    }
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Buffer = ");
    for (int i = 0; i < BUFFER_SIZE; i++) {
        pc.printf("%02X ", buffer[i]);
    }
    pc.printf("\n\r");
#endif
    if (rxBuf[2] == 1) {
        index = 0; // set buffer index to 0
        return true;
    }
    else {
        index = 0;
        return false;
    }
}

//**************************************************************************
bool PICASO_4DGL :: writeSectorResponse(int count) {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer");
#endif
    while (index < count) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    pc.printf("%02X %02X %02X\n\r", rxBuf[0], rxBuf[1], rxBuf[2]);
#endif
    
    if (rxBuf[2] == 1) {
        index = 0; // set buffer index to 0
        return true;
    }
    else {
        index = 0;
        return false;
    }
}

//**************************************************************************
bool PICASO_4DGL :: readResponse() {
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Wait for answer");
#endif

    while (index < 3) wait_ms(100); // wait for screen answer
    
#if DEBUGMODE
    pc.printf("\n\r DEBUG: Answer = ");
    pc.printf("%02X %02X %02X\n\r", rxBuf[0], rxBuf[1], rxBuf[2]);
#endif
    
    if (rxBuf[0] == ACK) {
        index = 0; // set buffer index to 0
        return true;
    }
    else {
        index = 0;
        return false;
    }
}