General Category > Discussion - EVE
Long text on BT 815
FlorianG:
Hi,
do you know if it is possible to display long texts with the BT 815 chip? I use the Gameduino 3x Dazzler so it is equipped with 8 mega of external RAM. if I display too much text it crashes because I suppose I am saturating the list of instructions. List which is too small and remains a big limitation on these chips.
Ps. my CPU is at teensy 4.0
BRT Community:
Hi,
Could you advise what lengths of strings you were needing to use?
Best Regards, BRT Community
FlorianG:
Thank you for your reply.
It can be long text of more than 2000 characters
BRT Community:
Hi,
In addition to a few instructions for the actual setup of the font bitmap properties, each character will require at least a Vertex command.
For characters which are beyond the reach of VERTEX2II (e.g. more than 511) there is also a CELL() instruction since EVE needs to use VERTEX2F and that needs a preceding command to set which cell/character.
Therefore, you should budget at least 4 bytes per character and 8 bytes in some cases.
if the text is fixed, you may be able to write it to a bitmap or display it and take a snapshot after start-up and that would save some DL space by displaying the sentence as a bitmap.
Best Regards, BRT Community
FlorianG:
Thank you for your response but I can't. the text is dynamic.
we can't use the 8m of external ram?
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