void lcdDrawVLine(uint16_t x, uint16_t y0, uint16_t y1, uint16_t color)
{
// Allows for slightly better performance than setting individual pixels
uint16_t y, pixels;
if (y1 < y0)
{
// Switch y1 and y0
y = y1;
y1 = y0;
y0 = y;
}
// Check limits
if (y1 >= lcdGetHeight())
{
y1 = lcdGetHeight() - 1;
}
if (y0 >= lcdGetHeight())
{
y0 = lcdGetHeight() - 1;
}
st7735SetAddrWindow(x, y0, x, lcdGetHeight());
st7735WriteCmd(ST7735_RAMWR); // write to RAM
for (pixels = 0; pixels < y1 - y0 + 1; pixels++)
{
st7735WriteData(color >> 8);
st7735WriteData(color);
}
st7735WriteCmd(ST7735_NOP);
}
void tsCalibrate(void)
{
tsTouchData_t data;
/* --------------- Welcome Screen --------------- */
data = tsRenderCalibrationScreen(lcdGetWidth() / 2, lcdGetHeight() / 2, 5);
/* ----------------- First Dot ------------------ */
// 10% over and 10% down
data = tsRenderCalibrationScreen(lcdGetWidth() / 10, lcdGetHeight() / 10, 5);
_tsLCDPoints[0].x = lcdGetWidth() / 10;
_tsLCDPoints[0].y = lcdGetHeight() / 10;
_tsTSPoints[0].x = data.xraw;
_tsTSPoints[0].y = data.yraw;
/* ---------------- Second Dot ------------------ */
// 50% over and 90% down
data = tsRenderCalibrationScreen(lcdGetWidth() / 2, lcdGetHeight() - lcdGetHeight() / 10, 5);
_tsLCDPoints[1].x = lcdGetWidth() / 2;
_tsLCDPoints[1].y = lcdGetHeight() - lcdGetHeight() / 10;
_tsTSPoints[1].x = data.xraw;
_tsTSPoints[1].y = data.yraw;
/* ---------------- Third Dot ------------------- */
// 90% over and 50% down
data = tsRenderCalibrationScreen(lcdGetWidth() - lcdGetWidth() / 10, lcdGetHeight() / 2, 5);
_tsLCDPoints[2].x = lcdGetWidth() - lcdGetWidth() / 10;
_tsLCDPoints[2].y = lcdGetHeight() / 2;
_tsTSPoints[2].x = data.xraw;
_tsTSPoints[2].y = data.yraw;
// Do matrix calculations for calibration and store to EEPROM
setCalibrationMatrix(&_tsLCDPoints[0], &_tsTSPoints[0], &_tsMatrix);
}
void lcdFillRGB(uint16_t color)
{
uint8_t x, y;
st7735SetAddrWindow(0, 0, lcdGetWidth() - 1, lcdGetHeight() - 1);
st7735WriteCmd(ST7735_RAMWR); // write to RAM
for (x=0; x < lcdGetWidth(); x++)
{
for (y=0; y < lcdGetHeight(); y++)
{
st7735WriteData(color >> 8);
st7735WriteData(color);
}
}
st7735WriteCmd(ST7735_NOP);
}
int getDisplayPoint( tsPoint_t * displayPtr, tsPoint_t * screenPtr, tsMatrix_t * matrixPtr ) {
int retValue = 0 ;
if( matrixPtr->Divider != 0 ) {
displayPtr->x = ( (matrixPtr->An * screenPtr->x) +
(matrixPtr->Bn * screenPtr->y) +
matrixPtr->Cn
) / matrixPtr->Divider ;
displayPtr->y = ( (matrixPtr->Dn * screenPtr->x) +
(matrixPtr->En * screenPtr->y) +
matrixPtr->Fn
) / matrixPtr->Divider ;
} else {
retValue = -1 ;
}
// Adjust value if the screen is in landscape mode
lcdOrientation_t orientation;
orientation = lcdGetOrientation();
if (orientation == LCD_ORIENTATION_LANDSCAPE) {
uint32_t oldx, oldy;
oldx = displayPtr->x;
oldy = displayPtr->y;
displayPtr->x = oldy;
displayPtr->y = lcdGetHeight() - oldx;
}
return(retValue);
}
void cmd_sysinfo(uint8_t argc, char **argv)
{
IAP_return_t iap_return;
printf("%-25s : %d.%d MHz %s", "System Clock", CFG_CPU_CCLK / 1000000, CFG_CPU_CCLK % 1000000, CFG_PRINTF_NEWLINE);
printf("%-25s : v%d.%d.%d %s", "Firmware", CFG_FIRMWARE_VERSION_MAJOR, CFG_FIRMWARE_VERSION_MINOR, CFG_FIRMWARE_VERSION_REVISION, CFG_PRINTF_NEWLINE);
// 128-bit MCU Serial Number
iap_return = iapReadSerialNumber();
if(iap_return.ReturnCode == 0)
{
printf("%-25s : %08X %08X %08X %08X %s", "Serial Number", iap_return.Result[0],iap_return.Result[1],iap_return.Result[2],iap_return.Result[3], CFG_PRINTF_NEWLINE);
}
// CLI and buffer Settings
#ifdef CFG_INTERFACE
printf("%-25s : %d bytes %s", "Max CLI Command", CFG_INTERFACE_MAXMSGSIZE, CFG_PRINTF_NEWLINE);
#endif
#ifdef CFG_PRINTF_UART
uart_pcb_t *pcb = uartGetPCB();
printf("%-25s : %d %s", "UART Baud Rate", pcb->baudrate, CFG_PRINTF_NEWLINE);
#endif
// TFT LCD Settings (if CFG_TFTLCD enabled)
#ifdef CFG_TFTLCD
printf("%-25s : %d %s", "LCD Width", (int)lcdGetWidth(), CFG_PRINTF_NEWLINE);
printf("%-25s : %d %s", "LCD Height", (int)lcdGetHeight(), CFG_PRINTF_NEWLINE);
#endif
// Wireless Settings (if CFG_CHIBI enabled)
#ifdef CFG_CHIBI
chb_pcb_t *pcb = chb_get_pcb();
printf("%-25s : %s %s", "Wireless", "AT86RF212", CFG_PRINTF_NEWLINE);
printf("%-25s : 0x%04X %s", "802.15.4 PAN ID", CFG_CHIBI_PANID, CFG_PRINTF_NEWLINE);
printf("%-25s : 0x%04X %s", "802.15.4 Node Address", pcb->src_addr, CFG_PRINTF_NEWLINE);
printf("%-25s : %d %s", "802.15.4 Channel", CFG_CHIBI_CHANNEL, CFG_PRINTF_NEWLINE);
#endif
// System Uptime (based on systick timer)
printf("%-25s : %u s %s", "System Uptime", (unsigned int)systickGetSecondsActive(), CFG_PRINTF_NEWLINE);
// System Temperature (if LM75B Present)
#ifdef CFG_LM75B
int32_t temp = 0;
lm75bGetTemperature(&temp);
temp *= 125;
printf("%-25s : %d.%d C %s", "Temperature", temp / 1000, temp % 1000, CFG_PRINTF_NEWLINE);
#endif
#ifdef CFG_SDCARD
printf("%-25s : %s %s", "SD Card Present", gpioGetValue(CFG_SDCARD_CDPORT, CFG_SDCARD_CDPIN) ? "True" : "False", CFG_PRINTF_NEWLINE);
#endif
}
void tsCalibrate(void)
{
tsTouchData_t data;
/* --------------- Welcome Screen --------------- */
data = tsRenderCalibrationScreen(lcdGetWidth() / 2, lcdGetHeight() / 2, 5);
systickDelay(250);
/* ----------------- First Dot ------------------ */
// 10% over and 10% down
data = tsRenderCalibrationScreen(lcdGetWidth() / 10, lcdGetHeight() / 10, 5);
_tsLCDPoints[0].x = lcdGetWidth() / 10;
_tsLCDPoints[0].y = lcdGetHeight() / 10;
_tsTSPoints[0].x = data.xraw;
_tsTSPoints[0].y = data.yraw;
printf("Point 1 - LCD X:%04d Y:%04d TS X:%04d Y:%04d \r\n",
(int)_tsLCDPoints[0].x, (int)_tsLCDPoints[0].y, (int)_tsTSPoints[0].x, (int)_tsTSPoints[0].y);
systickDelay(250);
/* ---------------- Second Dot ------------------ */
// 50% over and 90% down
data = tsRenderCalibrationScreen(lcdGetWidth() / 2, lcdGetHeight() - lcdGetHeight() / 10, 5);
_tsLCDPoints[1].x = lcdGetWidth() / 2;
_tsLCDPoints[1].y = lcdGetHeight() - lcdGetHeight() / 10;
_tsTSPoints[1].x = data.xraw;
_tsTSPoints[1].y = data.yraw;
printf("Point 2 - LCD X:%04d Y:%04d TS X:%04d Y:%04d \r\n",
(int)_tsLCDPoints[1].x, (int)_tsLCDPoints[1].y, (int)_tsTSPoints[1].x, (int)_tsTSPoints[1].y);
systickDelay(250);
/* ---------------- Third Dot ------------------- */
// 90% over and 50% down
data = tsRenderCalibrationScreen(lcdGetWidth() - lcdGetWidth() / 10, lcdGetHeight() / 2, 5);
_tsLCDPoints[2].x = lcdGetWidth() - lcdGetWidth() / 10;
_tsLCDPoints[2].y = lcdGetHeight() / 2;
_tsTSPoints[2].x = data.xraw;
_tsTSPoints[2].y = data.yraw;
printf("Point 3 - LCD X:%04d Y:%04d TS X:%04d Y:%04d \r\n",
(int)_tsLCDPoints[2].x, (int)_tsLCDPoints[2].y, (int)_tsTSPoints[2].x, (int)_tsTSPoints[2].y);
systickDelay(250);
// Do matrix calculations for calibration and store to EEPROM
setCalibrationMatrix(&_tsLCDPoints[0], &_tsTSPoints[0], &_tsMatrix);
}
int main(void) {
halInit();
chSysInit();
lcdInit(&GLCDD1);
lcdClear(Black);
lcdDrawString(100, 100, "Hello World", White, Black);
lcdMoveCursor(10,10,White, Black);
chprintf((BaseSequentialStream *)&GLCDD1, "chTimeNow: %d", chTimeNow());
lcdDrawCircle(150, 150, 10, filled, Green);
lcdDrawLine(0, 0, lcdGetWidth(), lcdGetHeight(), Yellow);
while (TRUE) {
chThdSleepMilliseconds(200);
}
return 0;
}
int getDisplayPoint( tsPoint_t * displayPtr, tsPoint_t * screenPtr, tsMatrix_t * matrixPtr )
{
int retValue = TS_ERROR_NONE ;
if( matrixPtr->Divider != 0 )
{
displayPtr->x = ( (matrixPtr->An * screenPtr->x) +
(matrixPtr->Bn * screenPtr->y) +
matrixPtr->Cn
) / matrixPtr->Divider ;
displayPtr->y = ( (matrixPtr->Dn * screenPtr->x) +
(matrixPtr->En * screenPtr->y) +
matrixPtr->Fn
) / matrixPtr->Divider ;
}
else
{
// ToDo: Default values required or you can never read LCD position!
// return TS_ERROR_NOTCALIBRATED;
return -1;
}
// Adjust value if the screen is in landscape mode
lcdOrientation_t orientation;
orientation = lcdGetOrientation();
if (orientation == LCD_ORIENTATION_LANDSCAPE)
{
uint32_t oldx, oldy;
oldx = displayPtr->x;
oldy = displayPtr->y;
displayPtr->x = oldy;
displayPtr->y = lcdGetHeight() - oldx;
}
return( retValue ) ;
}
char* alphaShowDialogue(void)
{
char result;
/* These need to be instantiated here since the width and height of
the lcd is retrieved dynamically depending on screen orientation */
alphaBtnX[0] = ALPHA_COL1_LEFT;
alphaBtnX[1] = ALPHA_COL2_LEFT;
alphaBtnX[2] = ALPHA_COL3_LEFT;
alphaBtnX[3] = ALPHA_COL4_LEFT;
alphaBtnX[4] = ALPHA_COL5_LEFT;
alphaBtnY[0] = ALPHA_ROW1_TOP;
alphaBtnY[1] = ALPHA_ROW2_TOP;
alphaBtnY[2] = ALPHA_ROW3_TOP;
alphaBtnY[3] = ALPHA_ROW4_TOP;
alphaBtnY[4] = ALPHA_ROW5_TOP;
alphaBtnY[5] = ALPHA_ROW6_TOP;
/* Initialise the string buffer */
memset(&alphaString[0], 0, sizeof(alphaString));
alphaString_ptr = alphaString;
alphaPage = 0;
/* Draw the background and render the buttons */
drawFill(COLOR_WHITE);
drawRectangleFilled(0, ALPHA_KEYPAD_TOP - ALPHA_BTN_SPACING, lcdGetWidth() - 1, lcdGetHeight() - 1, COLOR_DARKGRAY);
drawLine(0, (ALPHA_KEYPAD_TOP - ALPHA_BTN_SPACING) + 1, lcdGetWidth() - 1, (ALPHA_KEYPAD_TOP - ALPHA_BTN_SPACING) + 1, COLOR_LIGHTGRAY);
alphaRefreshScreen();
/* Capture results until the 'OK' button is pressed */
while(1)
{
result = alphaHandleTouchEvent();
if (result == '>') return (char *)&alphaString;
}
}
bmp_error_t bmpParseBitmap(uint16_t x, uint16_t y, FIL file)
{
UINT bytesRead;
bmp_header_t header;
bmp_infoheader_t infoHeader;
// Read the file header
// ToDo: Optimise this to read buffer once and parse it
f_read(&file, &header.type, sizeof(header.type), &bytesRead);
f_read(&file, &header.size, sizeof(header.size), &bytesRead);
f_read(&file, &header.reserved1, sizeof(header.reserved1), &bytesRead);
f_read(&file, &header.reserved2, sizeof(header.reserved2), &bytesRead);
f_read(&file, &header.offset, sizeof(header.offset), &bytesRead);
// Make sure this is a bitmap (first two bytes = 'BM' or 0x4D42 on little-endian systems)
if (header.type != 0x4D42) return BMP_ERROR_NOTABITMAP;
// Read the info header
// ToDo: Optimise this to read buffer once and parse it
f_read(&file, &infoHeader.size, sizeof(infoHeader.size), &bytesRead);
f_read(&file, &infoHeader.width, sizeof(infoHeader.width), &bytesRead);
f_read(&file, &infoHeader.height, sizeof(infoHeader.height), &bytesRead);
f_read(&file, &infoHeader.planes, sizeof(infoHeader.planes), &bytesRead);
f_read(&file, &infoHeader.bits, sizeof(infoHeader.bits), &bytesRead);
f_read(&file, &infoHeader.compression, sizeof(infoHeader.compression), &bytesRead);
f_read(&file, &infoHeader.imagesize, sizeof(infoHeader.imagesize), &bytesRead);
f_read(&file, &infoHeader.xresolution, sizeof(infoHeader.xresolution), &bytesRead);
f_read(&file, &infoHeader.yresolution, sizeof(infoHeader.yresolution), &bytesRead);
f_read(&file, &infoHeader.ncolours, sizeof(infoHeader.ncolours), &bytesRead);
f_read(&file, &infoHeader.importantcolours, sizeof(infoHeader.importantcolours), &bytesRead);
// Make sure that this is a 24-bit image
if (infoHeader.bits != 24)
return BMP_ERROR_INVALIDBITDEPTH;
// Check image dimensions
if ((infoHeader.width > lcdGetWidth()) | (infoHeader.height > lcdGetHeight()))
return BMP_ERROR_INVALIDDIMENSIONS;
// Make sure image is not compressed
if (infoHeader.compression != BMP_COMPRESSION_NONE)
return BMP_ERROR_COMPRESSEDDATA;
// Read 24-bit image data
uint32_t px, py;
FRESULT res;
uint8_t buffer[infoHeader.width * 3];
for (py = infoHeader.height; py > 0; py--)
{
// Read one row at a time
res = f_read(&file, &buffer, infoHeader.width * 3, &bytesRead);
if (res || bytesRead == 0)
{
// Error or EOF
return BMP_ERROR_PREMATUREEOF;
}
for (px = 0; px < infoHeader.width; px++)
{
// Render pixel
// ToDo: This is a brutally slow way of rendering bitmaps ...
// update to pass one row of data at a time
drawPixel(x + px, y + py - 1, drawRGB24toRGB565(buffer[(px * 3) + 2], buffer[(px * 3) + 1], buffer[(px * 3)]));
}
}
return BMP_ERROR_NONE;
}
void cmd_sysinfo(uint8_t argc, char **argv)
{
IAP_return_t iap_return;
/* Note: Certain values are only reported if CFG_INTERFACE_LONGSYSINFO
is set to 1 in projectconfig.h. These extra values are more useful
for debugging than real-world use, so there's no point wasiting
flash space storing the code for them */
printf("%-25s : %d.%d.%d %s", "Firmware", CFG_FIRMWARE_VERSION_MAJOR, CFG_FIRMWARE_VERSION_MINOR, CFG_FIRMWARE_VERSION_REVISION, CFG_PRINTF_NEWLINE);
printf("%-25s : %d.%d MHz %s", "System Clock", CFG_CPU_CCLK / 1000000, CFG_CPU_CCLK % 1000000, CFG_PRINTF_NEWLINE);
// System Uptime (based on systick timer)
printf("%-25s : %u s %s", "System Uptime", (unsigned int)systickGetSecondsActive(), CFG_PRINTF_NEWLINE);
// 128-bit MCU Serial Number
iap_return = iapReadSerialNumber();
if(iap_return.ReturnCode == 0)
{
printf("%-25s : %08X %08X %08X %08X %s", "Serial Number", iap_return.Result[0],iap_return.Result[1],iap_return.Result[2],iap_return.Result[3], CFG_PRINTF_NEWLINE);
}
#if CFG_INTERFACE_LONGSYSINFO
#ifdef CFG_USBCDC
printf("%-25s : %d ms %s", "USB Init Timeout", CFG_USBCDC_INITTIMEOUT, CFG_PRINTF_NEWLINE);
#endif
#endif
// CLI and buffer Settings
#if CFG_INTERFACE_LONGSYSINFO
printf("%-25s : %d bytes %s", "CLI Max Command Size", CFG_INTERFACE_MAXMSGSIZE, CFG_PRINTF_NEWLINE);
printf("%-25s : %s %s", "CLI IRQ Enabled", CFG_INTERFACE_ENABLEIRQ ? "True" : "False", CFG_PRINTF_NEWLINE);
#if CFG_INTERFACE_ENABLEIRQ
printf("%-25s : %d.%d %s", "CLI IRQ Location", CFG_INTERFACE_IRQPORT, CFG_INTERFACE_IRQPIN, CFG_PRINTF_NEWLINE);
#endif
#endif
#if CFG_INTERFACE_LONGSYSINFO
#ifdef CFG_I2CEEPROM
printf("%-25s : %d bytes %s", "EEPROM Size", CFG_I2CEEPROM_SIZE, CFG_PRINTF_NEWLINE);
#endif
#endif
#ifdef CFG_SDCARD
printf("%-25s : %s %s", "SD Card Present", gpioGetValue(CFG_SDCARD_CDPORT, CFG_SDCARD_CDPIN) ? "True" : "False", CFG_PRINTF_NEWLINE);
#if CFG_INTERFACE_LONGSYSINFO
printf("%-25s : %s %s", "FAT File System", CFG_SDCARD_READONLY ? "Read Only" : "Read/Write", CFG_PRINTF_NEWLINE);
#endif
#endif
#ifdef CFG_PRINTF_UART
uart_pcb_t *pcb = uartGetPCB();
printf("%-25s : %u %s", "UART Baud Rate", (unsigned int)(pcb->baudrate), CFG_PRINTF_NEWLINE);
#endif
// TFT LCD Settings (if CFG_TFTLCD enabled)
#ifdef CFG_TFTLCD
printf("%-25s : %d %s", "LCD Width", (int)lcdGetWidth(), CFG_PRINTF_NEWLINE);
printf("%-25s : %d %s", "LCD Height", (int)lcdGetHeight(), CFG_PRINTF_NEWLINE);
#if CFG_INTERFACE_LONGSYSINFO
printf("%-25s : %04X %s", "LCD Controller ID", (unsigned short)lcdGetControllerID(), CFG_PRINTF_NEWLINE);
printf("%-25s : %s %s", "LCD Small Fonts", CFG_TFTLCD_INCLUDESMALLFONTS == 1 ? "True" : "False", CFG_PRINTF_NEWLINE);
printf("%-25s : %s %s", "LCD AA Fonts", CFG_TFTLCD_USEAAFONTS == 1 ? "True" : "False", CFG_PRINTF_NEWLINE);
lcdProperties_t lcdprops = lcdGetProperties();
printf("%-25s : %s %s", "Touch Screen", lcdprops.touchscreen ? "True" : "False", CFG_PRINTF_NEWLINE);
if (lcdprops.touchscreen)
{
printf("%-25s : %s %s", "Touch Screen Calibrated", eepromReadU8(CFG_EEPROM_TOUCHSCREEN_CALIBRATED) == 1 ? "True" : "False", CFG_PRINTF_NEWLINE);
printf("%-25s : %d %s", "Touch Screen Threshold", CFG_TFTLCD_TS_DEFAULTTHRESHOLD, CFG_PRINTF_NEWLINE);
}
#endif
#endif
// Wireless Settings (if CFG_CHIBI enabled)
#ifdef CFG_CHIBI
chb_pcb_t *pcb = chb_get_pcb();
printf("%-25s : %s %s", "Wireless", "AT86RF212", CFG_PRINTF_NEWLINE);
printf("%-25s : 0x%04X %s", "802.15.4 PAN ID", CFG_CHIBI_PANID, CFG_PRINTF_NEWLINE);
printf("%-25s : 0x%04X %s", "802.15.4 Node Address", pcb->src_addr, CFG_PRINTF_NEWLINE);
printf("%-25s : %d %s", "802.15.4 Channel", CFG_CHIBI_CHANNEL, CFG_PRINTF_NEWLINE);
#endif
// System Temperature (if LM75B Present)
#ifdef CFG_LM75B
int32_t temp = 0;
lm75bGetTemperature(&temp);
temp *= 125;
printf("%-25s : %d.%d C %s", "Temperature", temp / 1000, temp % 1000, CFG_PRINTF_NEWLINE);
#endif
// ADC Averaging
#if CFG_INTERFACE_LONGSYSINFO
printf("%-25s : %s %s", "ADC Averaging", ADC_AVERAGING_ENABLE ? "True" : "False", CFG_PRINTF_NEWLINE);
#if ADC_AVERAGING_ENABLE
printf("%-25s : %d %s", "ADC Averaging Samples", ADC_AVERAGING_SAMPLES, CFG_PRINTF_NEWLINE);
#endif
#endif
// Debug LED
#if CFG_INTERFACE_LONGSYSINFO
printf("%-25s : %d.%d %s", "LED Location", CFG_LED_PORT, CFG_LED_PIN, CFG_PRINTF_NEWLINE);
#endif
}
bmp_error_t bmpSaveScreenshot(const char* filename)
{
DSTATUS stat;
bmp_error_t error = BMP_ERROR_NONE;
bmp_header_t header;
bmp_infoheader_t infoHeader;
uint32_t lcdWidth, lcdHeight, x, y, bgra32;
UINT bytesWritten;
uint16_t rgb565, eof;
uint8_t r, g, b;
// Create a new file (Crossworks only)
stat = disk_initialize(0);
if (stat & STA_NOINIT)
{
return BMP_ERROR_SDINITFAIL;
}
if (stat & STA_NODISK)
{
return BMP_ERROR_SDINITFAIL;
}
if (stat == 0)
{
// SD card sucessfully initialised
DSTATUS stat;
DWORD p2;
WORD w1;
BYTE res, b1;
DIR dir;
// Try to mount drive
res = f_mount(0, &Fatfs[0]);
if (res != FR_OK)
{
return BMP_ERROR_SDINITFAIL;
}
if (res == FR_OK)
{
// Create a file (overwriting any existing file!)
if(f_open(&bmpSDFile, filename, FA_READ | FA_WRITE | FA_CREATE_ALWAYS)!=FR_OK)
{
return BMP_ERROR_UNABLETOCREATEFILE;
}
}
}
lcdWidth = lcdGetWidth();
lcdHeight = lcdGetHeight();
// Create header
header.type = 0x4d42; // 'BM'
header.size = (lcdWidth * lcdHeight * 3) + sizeof(header) + sizeof(infoHeader); // File size in bytes
header.reserved1 = 0;
header.reserved2 = 0;
header.offset = 0x36; // Offset in bytes to the image data
// Create infoheader
infoHeader.size = sizeof(infoHeader);
infoHeader.width = lcdWidth;
infoHeader.height = lcdHeight;
infoHeader.planes = 1;
infoHeader.bits = 24;
infoHeader.compression = BMP_COMPRESSION_NONE;
infoHeader.imagesize = (lcdWidth * lcdHeight * 3) + 2; // 3 bytes per pixel + 2 bytes for EOF
infoHeader.xresolution = 0x0B12;
infoHeader.yresolution = 0x0B12;
infoHeader.ncolours = 0;
infoHeader.importantcolours = 0;
// Write header to disk
f_write(&bmpSDFile, &header.type, sizeof(header.type), &bytesWritten);
f_write(&bmpSDFile, &header.size, sizeof(header.size), &bytesWritten);
f_write(&bmpSDFile, &header.reserved1, sizeof(header.reserved1), &bytesWritten);
f_write(&bmpSDFile, &header.reserved2, sizeof(header.reserved2), &bytesWritten);
f_write(&bmpSDFile, &header.offset, sizeof(header.offset), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.size, sizeof(infoHeader.size), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.width, sizeof(infoHeader.width), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.height, sizeof(infoHeader.height), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.planes, sizeof(infoHeader.planes), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.bits, sizeof(infoHeader.bits), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.compression, sizeof(infoHeader.compression), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.imagesize, sizeof(infoHeader.imagesize), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.xresolution, sizeof(infoHeader.xresolution), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.yresolution, sizeof(infoHeader.yresolution), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.ncolours, sizeof(infoHeader.ncolours), &bytesWritten);
f_write(&bmpSDFile, &infoHeader.importantcolours, sizeof(infoHeader.importantcolours), &bytesWritten);
// Write image data to disk (starting from bottom row)
for (y = lcdHeight; y != 0; y--)
{
for (x = 0; x < lcdWidth; x++)
{
rgb565 = lcdGetPixel(x, y - 1); // Get RGB565 pixel
bgra32 = colorsRGB565toBGRA32(rgb565); // Convert RGB565 to 24-bit color
r = (bgra32 & 0x00FF0000) >> 16;
g = (bgra32 & 0x0000FF00) >> 8;
b = (bgra32 & 0x000000FF);
f_write(&bmpSDFile, &b, 1, &bytesWritten); // Write RGB data
f_write(&bmpSDFile, &g, 1, &bytesWritten);
f_write(&bmpSDFile, &r, 1, &bytesWritten);
}
}
// Write EOF (2 bytes)
eof = 0x0000;
f_write(&bmpSDFile, &eof, 2, &bytesWritten);
// Close the file
f_close(&bmpSDFile);
// Return OK signal
return BMP_ERROR_NONE;
}
tsTouchError_t tsWaitForEvent(tsTouchData_t* data, uint32_t timeoutMS)
{
if (!_tsInitialised) tsInit();
uint32_t z1, z2;
uint32_t xRaw1, xRaw2, yRaw1, yRaw2;
z1 = z2 = 0;
// Handle timeout if delay > 0 milliseconds
if (timeoutMS)
{
uint32_t startTick = systickGetTicks();
// Systick rollover may occur while waiting for timeout
if (startTick > 0xFFFFFFFF - timeoutMS)
{
// Wait for timeout or touch event
while (z2 < CFG_TFTLCD_TS_THRESHOLD)
{
// Throw alert if timeout delay has been passed
if ((systickGetTicks() < startTick) && (systickGetTicks() >= (timeoutMS - (0xFFFFFFFF - startTick))))
{
return TS_ERROR_TIMEOUT;
}
tsReadZ(&z1, &z2);
}
}
// No systick rollover will occur ... calculate timeout the simple way
else
{
// Wait in infinite loop
while (z2 < CFG_TFTLCD_TS_THRESHOLD)
{
// Throw timeout if delay has been passed
if ((systickGetTicks() - startTick) > timeoutMS)
{
return TS_ERROR_TIMEOUT;
}
tsReadZ(&z1, &z2);
}
}
}
// No timeout requested ... wait forever
else
{
while (z2 < CFG_TFTLCD_TS_THRESHOLD)
{
tsReadZ(&z1, &z2);
}
}
// Get raw conversion results
// Each value is read twice and compared to avoid erroneous readings
xRaw1 = tsReadY(); // X and Y are reversed
xRaw2 = tsReadY(); // X and Y are reversed
yRaw1 = tsReadX(); // X and Y are reverse
yRaw2 = tsReadX(); // X and Y are reverse
// If both read attempts aren't identical, return mismatch error
if ((xRaw1 != xRaw2) || (yRaw1 != yRaw2))
{
return TS_ERROR_XYMISMATCH;
}
// Normalise X
data->x = ((xRaw1 - _calibration.offsetLeft > TS_ADC_LIMIT ? 0 : xRaw1 - _calibration.offsetLeft) * 100) / _calibration.divisorX;
if (data->x > lcdGetWidth() - 1) data->x = lcdGetWidth() - 1;
// Normalise Y
data->y = ((yRaw1 - _calibration.offsetTop > TS_ADC_LIMIT ? 0 : yRaw1 - _calibration.offsetTop) * 100) / _calibration.divisorY;
if (data->y > lcdGetHeight() - 1) data->y = lcdGetHeight() - 1;
// Indicate correct reading
return TS_ERROR_NONE;
}
void tsCalibrate(void)
{
lcdOrientation_t orientation;
uint16_t right2, top2, left2, bottom2;
bool passed = false;
// Determine screen orientation before starting calibration
orientation = lcdGetOrientation();
/* -------------- Welcome Screen --------------- */
tsRenderCalibrationScreen(lcdGetWidth() / 2, lcdGetHeight() / 2, 5);
// Delay to avoid multiple touch events
systickDelay(250);
/* -------------- CALIBRATE TOP-LEFT --------------- */
passed = false;
while (!passed)
{
// Read X/Y depending on screen orientation
tsRenderCalibrationScreen(3, 3, 5);
_calibration.offsetLeft = orientation == LCD_ORIENTATION_LANDSCAPE ? tsReadY() : tsReadX();
_calibration.offsetTop = orientation == LCD_ORIENTATION_LANDSCAPE ? tsReadX() : tsReadY();
// Make sure values are in range
if (_calibration.offsetLeft < TS_CALIBRATION_OUTOFRANGE && _calibration.offsetTop < TS_CALIBRATION_OUTOFRANGE)
passed = true;
}
// Delay to avoid multiple touch events
systickDelay(250);
/* -------------- CALIBRATE BOTTOM-RIGHT --------------- */
passed = false;
while (!passed)
{
tsRenderCalibrationScreen(lcdGetWidth() - 4, lcdGetHeight() - 4, 5);
// Read X/Y depending on screen orientation
_calibration.offsetRight = orientation == LCD_ORIENTATION_LANDSCAPE ? TS_ADC_LIMIT - tsReadY() : TS_ADC_LIMIT - tsReadX();
_calibration.offsetBottom = orientation == LCD_ORIENTATION_LANDSCAPE ? TS_ADC_LIMIT - tsReadX() : TS_ADC_LIMIT - tsReadY();
// Redo test if value is out of range
if (_calibration.offsetRight < TS_CALIBRATION_OUTOFRANGE && _calibration.offsetBottom < TS_CALIBRATION_OUTOFRANGE)
passed = true;
}
// Delay to avoid multiple touch events
systickDelay(250);
/* -------------- CALIBRATE TOP-RIGHT --------------- */
passed = false;
while (!passed)
{
tsRenderCalibrationScreen(lcdGetWidth() - 4, 3, 5);
if (orientation == LCD_ORIENTATION_LANDSCAPE)
{
right2 = TS_ADC_LIMIT - tsReadY();
top2 = tsReadX();
}
else
{
right2 = tsReadX();
top2 = TS_ADC_LIMIT - tsReadY();
}
// Redo test if value is out of range
if (right2 < TS_CALIBRATION_OUTOFRANGE && top2 < TS_CALIBRATION_OUTOFRANGE)
passed = true;
}
// Average readings
_calibration.offsetRight = (_calibration.offsetRight + right2) / 2;
_calibration.offsetTop = (_calibration.offsetTop + top2) / 2;
// Delay to avoid multiple touch events
systickDelay(250);
/* -------------- CALIBRATE BOTTOM-LEFT --------------- */
passed = false;
while (!passed)
{
tsRenderCalibrationScreen(3, lcdGetHeight() - 4, 5);
if (orientation == LCD_ORIENTATION_LANDSCAPE)
{
left2 = tsReadY();
bottom2 = TS_ADC_LIMIT - tsReadX();
}
else
{
left2 = TS_ADC_LIMIT - tsReadX();
bottom2 = tsReadY();
}
// Redo test if value is out of range
if (left2 < TS_CALIBRATION_OUTOFRANGE && bottom2 < TS_CALIBRATION_OUTOFRANGE)
passed = true;
}
// Average readings
_calibration.offsetLeft = (_calibration.offsetLeft + left2) / 2;
_calibration.offsetBottom = (_calibration.offsetBottom + bottom2) / 2;
// Delay to avoid multiple touch events
systickDelay(250);
_calibration.divisorX = ((TS_ADC_LIMIT - (_calibration.offsetLeft + _calibration.offsetRight)) * 100) / lcdGetWidth();
_calibration.divisorY = ((TS_ADC_LIMIT - (_calibration.offsetTop + _calibration.offsetBottom)) * 100) / lcdGetHeight();
/* -------------- Persist Data --------------- */
// Persist data to EEPROM
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_LEFT, _calibration.offsetLeft);
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_RIGHT, _calibration.offsetRight);
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_TOP, _calibration.offsetTop);
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_BOT, _calibration.offsetBottom);
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_DIVX, _calibration.divisorX);
eepromWriteU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_DIVY, _calibration.divisorY);
eepromWriteU8(CFG_EEPROM_TOUCHSCREEN_CALIBRATED, 1);
// Clear the screen
drawFill(COLOR_BLACK);
}
