TftBmpFromSdRaw()

TftBmpFromSdRaw(wX_Pos As Word, wY_Pos As Word, dwStartSector As Dword), Byte

wX_Pos = X position for the lower-left corner of the image to print

wY_Pos = Y position for the lower-left corner of the image to print

dwFileStartSector = File start sector (zero-based) in the SD card memory

Result Byte:

255 = No errors detected

Else = Errors detected

This procedure prints a BMP file directly from an SD card without using a file system. 

It is much faster for displaying images (e.g., buttons, backgrounds) than using an SD card formatted with FAT32. As a result, menu or button transitions will appear smoother. There is no need to initialize the SD card.

Example: 

TftBmpFromSdRaw(20,30,8)

Notes:

• The BMP file must be:

• Smaller than the screen’s width and height

• 16-bit RGB (565) color depth

• Stored with bottom-to-top row direction (default)

• Not compressed

You can convert files using various tools, such as: Online BMP Converter.

Simply select the correct format, upload the file, wait for the conversion, and download the result.

Alternatively, you can use the included library tool, SdCardWriteRGB565, to convert and upload files.

Created with the Personal Edition of HelpNDoc: Single source CHM, PDF, DOC and HTML Help creation