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Update README.txt

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Gregory Nutt
2016-04-22 10:13:53 -06:00
parent 2a928cbdbe
commit 3527a5a5d7
1 changed files with 11 additions and 10 deletions
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configs/samv71-xult/README.txt
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@@ -2349,7 +2349,7 @@ Configuration sub-directories
CONFIG_EXAMPLES_NXIMAGE_BPP=16
To re-select 8-bits per pixel RGB8 3:3:3
To re-select 8-bits per pixel RGB8 3:3:2
# CONFIG_NX_DISABLE_8BPP is not set
CONFIG_NX_DISABLE_16BPP=y
@@ -2362,10 +2362,10 @@ Configuration sub-directories
STATUS:
2016-04-21: I have gotten the apps/examples/nximage to work with
lots issues with verbose GRAPHICS and UPDATER debug ON. There are
reliability problems and it hangs at the end of the test. But if
I turn UPDATE debug off (only), then the display output is
corrupted. I have also see hardfaults.
lots issues with 16-bit RGB and verbose GRAPHICS and UPDATER debug
ON. There are reliability problems and it hangs at the end of the
test. But if I turn UPDATE debug off (only), then the display
output is corrupted. I have also see hardfaults.
Mostly likely, the UPDATER debug output slows the updates and
avoids some kind of race condition with the networking. Oddly,
@@ -2373,10 +2373,11 @@ Configuration sub-directories
2016-04-22: I added a 100 MS delay at the beginning of the
updater loop and it made no difference. This seems to eliminate
the suspected networking race condition.
the suspected networking race condition. I am thinking now
either some data overrun or VNC protocol/timing issue?
The default configuration now uses RGB8 which needs a lot less
SRAM for the local frame buffer and does not the color quality
in the remote display (since it is also 8 BPP). At 8 BPP, the
remote display is correct (although I still do see problems with
hangs).
SRAM for the local frame buffer and does not degrade the color
quality in the remote display (since it is also 8 BPP). At 8
BPP, the remote display is correct even with both GRAPHICS and
UPDATER debug OFF -- and there is no hang!