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Discussion - Hardware / Re: BT81x to support 1366*768 LCD?
« on: January 22, 2019, 12:00:10 PM »
Hello John,
Yes that would be correct a quick run of the maths for a RGB565 image on a 1366*732 screen works out to roughly 2M Bytes. Such a bitmap would be too large for the internal graphics RAM on the BT81x. The BT81X ICs include support for external flash memory which can be used to store/offload graphics elements such as bitmaps, custom fonts and widgets from the integrated RAM, using ASTC:
You can find out more info at the following page (see programmers guide):
http://brtchip.com/bt81x/
Is there a specific reason you are trying to use a full screen bitmap?
Best Regards,
FTDI Community
Yes that would be correct a quick run of the maths for a RGB565 image on a 1366*732 screen works out to roughly 2M Bytes. Such a bitmap would be too large for the internal graphics RAM on the BT81x. The BT81X ICs include support for external flash memory which can be used to store/offload graphics elements such as bitmaps, custom fonts and widgets from the integrated RAM, using ASTC:
You can find out more info at the following page (see programmers guide):
http://brtchip.com/bt81x/
Is there a specific reason you are trying to use a full screen bitmap?
Best Regards,
FTDI Community