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yhfudev / u8glib-backup

Universal Graphics Library for 8 Bit Embedded Systems
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DUE slower than MEGA #174

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Report by Mark via e-mail:

U8GLIB_NHD31OLED_GR is much slower on the DUE than on the MEGA (and UNO)

Applying this does not help
http://code.google.com/p/u8glib/issues/detail?id=155

Next step: 
Try to reproduce this bug.

Original issue reported on code.google.com by olikr...@gmail.com on 28 May 2013 at 6:36

GoogleCodeExporter commented 9 years ago 
digitalWrite is really slow --> replaced with PIO_xxx calls
--> speed nearly doubled
  U8GLIB_DOGS102 u8g(13, 11, 10, 9);    STD SW SPI  FPS: Clip=9.5 Box=7.6  @=8.2 Pix=6.2    Size=15652
  U8GLIB_DOGS102 u8g(13, 11, 10, 9);    SW SPI          FPS: Clip=19.1 Box=12.8  @=14.0 Pix=9.2 Size=15532

Original comment by olikr...@gmail.com on 6 Jun 2013 at 10:07