Regards,
Frederic.
Douglas Gilbert a écrit :
Frederic AYRAULT wrote:
Hi all,
I am trying to connect a LCD display (http://foxlx.acmesystems.it/?id=8021)
and a temperature sensor (http://foxlx.acmesystems.it/?id=89)
on my Fox running darwinfox 8.09-4.
Be warned the temperature sensor code has one very nasty
bug. It is nasty because it looks like it is working
but gives temperatures that are off by up to 2 C sometimes.
The C type of Lsb and Msb cannot be "char"! That causes
this to happen after sign extension (for example):
Msb = 0x2
Lsb = 0x80
(Msb << 8) + Lsb -----> res
(0x2 << 8) + 0x80 -----> 0x180
Ouch! Change the type of Lsb to "unsigned char" and the sum
is 0x280 as expected.
I emailed Sergio T. and he said that he would correct the web
page but it ain't happened yet.
BTW My testing was on the Phrozen SDK. I expect the same
bug would show up in Crisos.
Doug Gilbert
I am just able to test gpio with a LED and a switch using setbits and readbits (http://foxlx.acmesystems.it/?id=17)
I would like to do the same tests using GPIO syscalls (http://foxlx.acmesystems.it/?id=22)
but when I try to get the SDK using svn co svn://svn.tuxfamily.org/svnroot/crisos/svn/target/darwinfox,
I do not get the openwrt trunk : A darwinfox/helper
A darwinfox/helper/patch
A darwinfox/patches
A darwinfox/patches/900-crypto_workaround.patch
A darwinfox/patches/N0003-add-patch-for-2.6.28.patch
A darwinfox/patches/800-enable_ipkg.patch
A darwinfox/patches/N0002-fix-typo-and-make-subtarget-appear-in-menuconfig.patch
A darwinfox/patches/001-base-files.patch
A darwinfox/patches/N0007-netus-now-override-at91.patch
A darwinfox/patches/N0004-XXX-Da-reingegnarizzare.patch
A darwinfox/patches/N0001-initial-import-for-netus.patch
A darwinfox/patches/N0005-XXX-DA-reingegnerizzare-2.patch
A darwinfox/patches/N0006-fix-netus-build.patch
A darwinfox/README.map
A darwinfox/Makefile
A darwinfox/README
U darwinfox
Checked out revision 118.
Thank you for your help.
Regards,
Frederic.
PS : Thank you Claudio for CrisOs
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