/*
** This function resolves the coordinates of the location on the
** touch screen being touched.
*/
void ResolveCoordinates(int *pX, int *pY)
{
unsigned short xpos, ypos;
char x = 0, y =1;
char rx1 = 0, rx2 = 0;
char ry1 = 0, ry2 = 0;
unsigned int xDpos = 0;
int yDpos = 0;
/* read x-cordinates */
ReadAxis(x, &rx1, &rx2);
/* read y cordinates */
ReadAxis(y, &ry1, &ry2);
/*To collect the 10 bits of digital data, 8 present in rx1 and 2 in rx2.*/
xpos = rx1 + ((unsigned short int)rx2 << 8);
/*To collect the 10 bits of digital data, 8 present in ry1 and 2 in ry2.*/
ypos = ry1 + ((unsigned short int)ry2 << 8);
xDpos = (unsigned int)xpos*DEFAULT_XSCALE + XOFFSET;
yDpos = (int)ypos*DEFAULT_YSCALE + YOFFSET;
yDpos = LCD_HEIGHT - yDpos;
if(yDpos < 0)
{
yDpos = 0;
}
/* put touch screen in stand by mode.So that next
* can be detected
*/
TSCStandByMode();
*pX =(int)xDpos;
*pY = yDpos;
}
int main(void)
{
int xCoOd = 0, yCoOd = 0;
char pressure = 0, touched = 0;
unsigned int i = 0;
unsigned char *dest;
unsigned char *src;
SetupIntc();
SetUpLCD();
/* configuring the base ceiling */
RasterDMAFBConfig(SOC_LCDC_0_REGS,
(unsigned int)(g_pucBuffer+PALETTE_OFFSET),
(unsigned int)(g_pucBuffer+PALETTE_OFFSET) + sizeof(g_pucBuffer) - 2 -
PALETTE_OFFSET, FRAME_BUFFER_0);
RasterDMAFBConfig(SOC_LCDC_0_REGS,
(unsigned int)(g_pucBuffer+PALETTE_OFFSET),
(unsigned int)(g_pucBuffer+PALETTE_OFFSET) + sizeof(g_pucBuffer) - 2 -
PALETTE_OFFSET, FRAME_BUFFER_1);
src = (unsigned char *) palette_32b;
dest = (unsigned char *) (g_pucBuffer+PALETTE_OFFSET);
// Copy palette info into buffer
for( i = PALETTE_OFFSET; i < (PALETTE_SIZE+PALETTE_OFFSET); i++)
{
*dest++ = *src++;
}
// copy splash screen
/*src = (unsigned char *)&splash[40];
for(; i < LCD_SIZE; i++)
{
*dest++ = *src++;
}*/
GrOffScreen16BPPInit(&g_sSHARP480x272x16Display, g_pucBuffer, LCD_WIDTH, LCD_HEIGHT);
// Initialize a drawing context.
GrContextInit(&sContext, &g_sSHARP480x272x16Display);
/* enable End of frame interrupt */
RasterEndOfFrameIntEnable(SOC_LCDC_0_REGS);
/* enable raster */
RasterEnable(SOC_LCDC_0_REGS);
/* Enable display panel backlight and power */
ConfigRasterDisplayEnable();
DisplayGR();
SoundInit();
// TS init
PeripheralsSetup();
InitTouchScreen();
// Loop forever handling widget messages.
while(1)
{
while(!touched)
{
ReadAxis(2, &pressure, &touched);
}
/* Resolving the coordinates of the touched location.*/
ResolveCoordinates(&xCoOd, &yCoOd);
do
{
WidgetPointerMessage(WIDGET_MSG_PTR_DOWN, xCoOd, yCoOd);
// Process any messages in the widget message queue.
WidgetMessageQueueProcess();
ResolveCoordinates(&xCoOd, &yCoOd);
ReadAxis(2, &pressure, &touched);
}while(touched);
WidgetPointerMessage(WIDGET_MSG_PTR_UP, xCoOd, yCoOd);
WidgetMessageQueueProcess();
}
}
void loop()
{
int xRaw = ReadAxis(xInput);
int yRaw = ReadAxis(yInput);
int zRaw = ReadAxis(zInput);
if (digitalRead(buttonPin) == LOW)
{
Serial.println();
Serial.print(xRaw);
Serial.print(", ");
Serial.print(yRaw);
Serial.print(", ");
Serial.print(zRaw);
AutoCalibrate(xRaw, yRaw, zRaw);
}
else
{
Serial.print("Raw Ranges: X: ");
Serial.print(xRawMin);
Serial.print("-");
Serial.print(xRawMax);
Serial.print(", Y: ");
Serial.print(yRawMin);
Serial.print("-");
Serial.print(yRawMax);
Serial.print(", Z: ");
Serial.print(zRawMin);
Serial.print("-");
Serial.print(zRawMax);
Serial.println();
Serial.print(xRaw);
Serial.print(", ");
Serial.print(yRaw);
Serial.print(", ");
Serial.print(zRaw);
// Convert raw values to 'milli-Gs"
long xScaled = map(xRaw, xRawMin, xRawMax, -1000, 1000);
long yScaled = map(yRaw, yRawMin, yRawMax, -1000, 1000);
long zScaled = map(zRaw, zRawMin, zRawMax, -1000, 1000);
// re-scale to fractional Gs
float xAccel = xScaled / 1000.0;
float yAccel = yScaled / 1000.0;
float zAccel = zScaled / 1000.0;
Serial.print(" :: ");
Serial.print(xAccel);
Serial.print("G, ");
Serial.print(yAccel);
Serial.print("G, ");
Serial.print(zAccel);
Serial.println("G");
delay(500);
}
}
