MobileRead Forums - View Single Post - iLiad Is the startup screen slowing the boot?

scotty1024 · 12-12-2006, 01:54 PM

So I have a question for iRex: is the startup screen slowing the boot?

The reason I ask is because it appears iRex's FPGA can't do partial e-ink updates, it has to push the whole framebuffer into the e-ink panel.

My timings have demonstrated that when the FPGA grabs the contents of the framebuffer the CPU runs 10 times slower for periods of .5 second or longer (depending on wether you do dmQFull or dmQTyping.)

So while it's wonderful to have that fuel guage marching across the bottom of the screen, how much time is that costing us during boot up?

12-12-2006, 01:54 PM	#1
scotty1024 Banned Posts: 1,300 Karma: 1479 Join Date: Jul 2006 Location: Peoples Republic of Washington Device: Reader / iPhone / Librie / Kindle	Is the startup screen slowing the boot? So I have a question for iRex: is the startup screen slowing the boot? The reason I ask is because it appears iRex's FPGA can't do partial e-ink updates, it has to push the whole framebuffer into the e-ink panel. My timings have demonstrated that when the FPGA grabs the contents of the framebuffer the CPU runs 10 times slower for periods of .5 second or longer (depending on wether you do dmQFull or dmQTyping.) So while it's wonderful to have that fuel guage marching across the bottom of the screen, how much time is that costing us during boot up?