I have a problem with my ILI9488 TFT Touch LCD module (Arduino Uno Shield). (320x480)
I can show .bmp pictures on the screen, read out of a SD-card. In another testprogram, I can Serial.print() a char when I touch the display. (That's all it needs to do)
But when I merge the two programs together, it doesnt't work anymore. I think the libraries are interferring with each other. Is there any way to fix this, or can anyone recommend two compatible libraries to fix this?
Thanks in advance!
//----------------------------------------------------------------------------------------
// Declaration MCUFRIEND
//----------------------------------------------------------------------------------------
#include "MCUFRIEND_kbv.h"
MCUFRIEND_kbv tft;
#define LOWFLASH (defined(__AVR_ATmega328P__) && defined(MCUFRIEND_KBV_H_))
//----------------------------------------------------------------------------------------
// Declaration SDCard & Dependencies
//----------------------------------------------------------------------------------------
#include <SPI.h>
#include <SD.h>
#include <Adafruit_GFX.h>
#include <stdint.h>
#include "TouchScreen.h"
#define YP A2
#define XM A3
#define YM 8
#define XP 9
#define MINPRESSURE 1000
#define MAXPRESSURE 10000
//---------------------------------------------------------------------------------------
///Variables & Constants
#define BLACK 0x0000 /* 0, 0, 0 */
#define NAVY 0x000F /* 0, 0, 128 */
#define DARKGREEN 0x03E0 /* 0, 128, 0 */
#define DARKCYAN 0x03EF /* 0, 128, 128 */
#define MAROON 0x7800 /* 128, 0, 0 */
#define PURPLE 0x780F /* 128, 0, 128 */
#define OLIVE 0x7BE0 /* 128, 128, 0 */
#define LIGHTGREY 0xC618 /* 192, 192, 192 */
#define DARKGREY 0x7BEF /* 128, 128, 128 */
#define BLUE 0x001F /* 0, 0, 255 */
#define GREEN 0x07E0 /* 0, 255, 0 */
#define CYAN 0x07FF /* 0, 255, 255 */
#define RED 0xF800 /* 255, 0, 0 */
#define MAGENTA 0xF81F /* 255, 0, 255 */
#define YELLOW 0xFFE0 /* 255, 255, 0 */
#define WHITE 0xFFFF /* 255, 255, 255 */
#define ORANGE 0xFDA0 /* 255, 180, 0 */
#define GREENYELLOW 0xB7E0 /* 180, 255, 0 */
#define PINK 0xFC9F
#define SD_CS 10 // Chip Select from SPI Interface
#define LOGO "default"
#define AUTHUSER "authuser"
#define ADDUSER "adduser"
#define PALETTEDEPTH 4
File root;
char ReadMode = '0'; // Sleep = 0, Default = 1, Finger ID = 2, Finger Enroll = 3
char namebuf[32] = "/"; // BMP=Files in the root directory
int x, y, pathlen, count;
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
bool pressed = false;
void setup()
{
uint16_t ID = tft.readID();
Serial.begin(9600);
tft.begin(ID);
//Please select the mode you want to use
//Sleep --> 0
//Default --> 1
//FingerID --> 2
//FingerEnroll --> 3
//Getting SDCard Ready
bool good = SD.begin(SD_CS);
root = SD.open(namebuf);
pathlen = strlen(namebuf);
x = 0;
y = 0;
}
void loop(void)
{
if (Serial.available()) {
ReadMode = Serial.read();
}
if (ReadMode == '0') {
tft.fillScreen(NULL);
}
if(ReadMode == '1') // The Default HomeScreen displays, Read from the SDCard
{
for(int i = 0; i < 5; i++)
{
char *nm = namebuf + pathlen;
File f = root.openNextFile();
uint8_t ret;
uint32_t start;
if (f != NULL)
{
#ifdef USE_SDFAT
f.getName(nm, 32 - pathlen);
#else
strcpy(nm, (char *)f.name());
#endif
f.close();
strlwr(nm);
if (strstr(nm, ".bmp") != NULL && strstr(nm, LOGO) != NULL)
{
ret = showBMP(namebuf, x, y);
}
}
else root.rewindDirectory();
}
}
if (ReadMode == '2') // The AuthUser displays, Read from the SDCard
{
for(int i = 0; i < 5; i++)
{
char *nm = namebuf + pathlen;
File f = root.openNextFile();
uint8_t ret;
uint32_t start;
if (f != NULL)
{
#ifdef USE_SDFAT
f.getName(nm, 32 - pathlen);
#else
strcpy(nm, (char *)f.name());
#endif
f.close();
strlwr(nm);
if (strstr(nm, ".bmp") != NULL && strstr(nm, AUTHUSER) != NULL)
{
ret = showBMP(namebuf, x, y);
}
}
else root.rewindDirectory();
}
}
TSPoint p = ts.getPoint();
if (p.z > MINPRESSURE && p.z < MAXPRESSURE) { // TOUCH
Serial.println('X');
}
}
//----------------------------------------------------------------------------------------
// Methods for reading from SDCard
//----------------------------------------------------------------------------------------
#define BMPIMAGEOFFSET 54
#define BUFFPIXEL 20
uint16_t read16(File& f) {
uint16_t result; // read little-endian
f.read((uint8_t*)&result, sizeof(result));
return result;
}
uint32_t read32(File& f) {
uint32_t result;
f.read((uint8_t*)&result, sizeof(result));
return result;
}
uint8_t showBMP(char *nm, int x, int y)
{
File bmpFile;
int bmpWidth, bmpHeight; // W+H in pixels
uint8_t bmpDepth; // Bit depth (currently must be 24, 16, 8, 4, 1)
uint32_t bmpImageoffset; // Start of image data in file
uint32_t rowSize; // Not always = bmpWidth; may have padding
uint8_t sdbuffer[3 * BUFFPIXEL]; // pixel in buffer (R+G+B per pixel)
uint16_t lcdbuffer[(1 << PALETTEDEPTH) + BUFFPIXEL], *palette = NULL;
uint8_t bitmask, bitshift;
boolean flip = true; // BMP is stored bottom-to-top
int w, h, row, col, lcdbufsiz = (1 << PALETTEDEPTH) + BUFFPIXEL, buffidx;
uint32_t pos; // seek position
boolean is565 = false; //
uint16_t bmpID;
uint16_t n; // blocks read
uint8_t ret;
if ((x >= tft.width()) || (y >= tft.height()))
return 1; // off screen
bmpFile = SD.open(nm); // Parse BMP header
bmpID = read16(bmpFile); // BMP signature"
(void) read32(bmpFile); // Read & ignore file size
(void) read32(bmpFile); // Read & ignore creator bytes
bmpImageoffset = read32(bmpFile); // Start of image data
(void) read32(bmpFile); // Read & ignore DIB header size
bmpWidth = read32(bmpFile);
bmpHeight = read32(bmpFile);
n = read16(bmpFile); // # planes -- must be '1'
bmpDepth = read16(bmpFile); // bits per pixel
pos = read32(bmpFile); // format
if (bmpID != 0x4D42) ret = 2; // bad ID
else if (n != 1) ret = 3; // too many planes
else if (pos != 0 && pos != 3) ret = 4; // format: 0 = uncompressed, 3 = 565
else if (bmpDepth < 16 && bmpDepth > PALETTEDEPTH) ret = 5; // palette
else {
bool first = true;
is565 = (pos == 3); // ?already in 16-bit format
// BMP rows are padded (if needed) to 4-byte boundary
rowSize = (bmpWidth * bmpDepth / 8 + 3) & ~3;
if (bmpHeight < 0) { // If negative, image is in top-down order.
bmpHeight = -bmpHeight;
flip = false;
}
w = bmpWidth;
h = bmpHeight;
if ((x + w) >= tft.width()) // Crop area to be loaded
w = tft.width() - x;
if ((y + h) >= tft.height()) //
h = tft.height() - y;
if (bmpDepth <= PALETTEDEPTH) { // these modes have separate palette
bmpFile.seek(bmpImageoffset - (4<<bmpDepth)); //54 for regular, diff for colorsimportant
bitmask = 0xFF;
if (bmpDepth < 8)
bitmask >>= bmpDepth;
bitshift = 8 - bmpDepth;
n = 1 << bmpDepth;
lcdbufsiz -= n;
palette = lcdbuffer + lcdbufsiz;
for (col = 0; col < n; col++) {
pos = read32(bmpFile); //map palette to 5-6-5
palette[col] = ((pos & 0x0000F8) >> 3) | ((pos & 0x00FC00) >> 5) | ((pos & 0xF80000) >> 8);
}
}
// Set TFT address window to clipped image bounds
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
for (row = 0; row < h; row++) { // For each scanline...
uint8_t r, g, b, *sdptr;
int lcdidx, lcdleft;
if (flip) // Bitmap is stored bottom-to-top order (normal BMP)
pos = bmpImageoffset + (bmpHeight - 1 - row) * rowSize;
else // Bitmap is stored top-to-bottom
pos = bmpImageoffset + row * rowSize;
if (bmpFile.position() != pos) { // Need seek?
bmpFile.seek(pos);
buffidx = sizeof(sdbuffer); // Force buffer reload
}
for (col = 0; col < w; ) { //pixels in row
lcdleft = w - col;
if (lcdleft > lcdbufsiz) lcdleft = lcdbufsiz;
for (lcdidx = 0; lcdidx < lcdleft; lcdidx++) { // buffer at a time
uint16_t color;
// Time to read more pixel data?
if (buffidx >= sizeof(sdbuffer)) { // Indeed
bmpFile.read(sdbuffer, sizeof(sdbuffer));
buffidx = 0; // Set index to beginning
r = 0;
}
switch (bmpDepth) { // Convert pixel from BMP to TFT format
case 24:
b = sdbuffer[buffidx++];
g = sdbuffer[buffidx++];
r = sdbuffer[buffidx++];
color = tft.color565(r, g, b);
break;
case 16:
b = sdbuffer[buffidx++];
r = sdbuffer[buffidx++];
if (is565)
color = (r << 8) | (b);
else
color = (r << 9) | ((b & 0xE0) << 1) | (b & 0x1F);
break;
case 1:
case 4:
case 8:
if (r == 0)
b = sdbuffer[buffidx++], r = 8;
color = palette[(b >> bitshift) & bitmask];
r -= bmpDepth;
b <<= bmpDepth;
break;
}
lcdbuffer[lcdidx] = color;
}
tft.pushColors(lcdbuffer, lcdidx, first);
first = false;
col += lcdidx;
} // end cols
} // end rows
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1); //restore full screen
ret = 0; // good render
}
bmpFile.close();
return (ret);
}