When you require an external font file (especially with localized characters sets), it is common that an entire character set may be too large for the memory on your display controller. Often even selecting ranges of characters will create .SIF files in the multi-megabyte size range. The solution is to only create an external font file (.SIF) with the characters you need for your project. The fastest way to specify and create distinct characters in an external font file (.SIF) is to use a “Pattern File.” To create a Pattern File follow these steps:
See Fonts for Embedded Touch Screen Development for a comprehensive explanation of working with fonts.