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hi,

ı want to display a bitmap on my 240*128 lcd..
how can ı do it????

<screen>
<name>bat1</name>
<action>
<id>Core.NextScreen</id>
<delay>5000</delay>
</action>
<item type="image" x="0" y="0">
<imagebitmap>screens\240x128\alice2.bmp</imagebitmap> -------(path and name of bitmap here)
<refresh>500</refresh>
</item>

</screen>

Bitmap must also be correct size and mono/ 2 colours or it wont display
hope that helps

What kind environment ? Are you still using a PIC16F877 ? Do you already have the bitmap stored somewhere ?

How big should the bitmap be ?

Uncompressed 240x128 bitmap takes 240/8*128 = 3840 bytes of memory so you can't fit many of those with PIC resources.

Then you just set the T6963C address pointer to the correct place in the screen buffer and depending of your settings you just write data bytes to the display and increase the address pointer. One byte is 6 or 8 bits depending of the setting of your T6963C controller.

So similarly as in this clear screen function except that you write some meaningful data bytes instead of those zeros in this one.

thanks henri,

i still use 16f877, i know memory isn't so large but this is for only learning..

for(i=0;i<2731;i++)

!!!!

why 2731?

Yes the memory size shouldn't really be a problem but just something to keep in mind.

2731 is just for some value there and nothing to look too much into. It just writes 2731 bytes to the display in that loop.