RAiO RA8806 - Display Future

Version 1.3
RA8806
Two Layers Character/Graphic LCD Controller
6-11-3 Create Symbol
RA8806 provides font creator function that allows user to design and create new fonts, special
symbols or logos and store into its embedded CGRAM or DDRAM. The user-created characters
each defined as a full-size (16x16) or half-size (8x16) character bitmap font formats, thus 24x16,
40x16, 16x32 or bigger sized fonts are also possible to create accordingly. The following Figure
6-56 represents a user created symbol with size 24x16.
Figure 6-56 : A 24x16 Symbol Example
For creating a new symbol, in addition to write command to CGRAM or DDRAM, note the setting of
the font codes before trying to write characters to be displayed. See the following 2 examples of
creating this 24x16 symbol in DDRAM:
When the first address - (CURX, CURY) of data write to DDRAM is (0, 0), the font code of this symbol are
0x8000, 0x8001 and 0x8002, as Figure 6-57 below:
When the first address of date write to DDRAM is (2, 10h), the font code of this symbol are 0x8105,0x8106,
0x8107 and so on. Please refer the following Program Example(4). The result is show Figure 6-56 on screen.
Font Code:0x8105
Font Code:0x8106
Font Code:0x8107
Figure 6-57 : Font Code of User’s Created Symbol for Program Example(4)
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