I would like to know how to convert a bitmap file (or other image file) to HEX file type for downloading in XS Board's RAM.
The source and executable for a program (GIF2HEX) to convert GIF images into hex files is at /ho07000.php. GIF2HEX translates a GIF file into a HEX file that you can load into the XS Board RAM. GIF2HEX is really bad: it crashes often and it's very inflexible. Hopefully someone can take it and make it into something useful.
The IPXS application might also help you. With IPXS you can open an BMP file and save it as hex file in order to write to the SRAM of the XS40. You can find a link to the IPXS software at /ho07000.php.