On 02/02/2010 05:29 AM, stef wrote: > Le lundi 1 f?vrier 2010 13:52:30 Chris Berry, vous avez ?crit : > >> On 01/31/2010 09:21 PM, stef wrote: >> >>> Le dimanche 31 janvier 2010 20:30:58 Chris Berry, vous avez ?crit : >>> >>>> Ok Stef, ignore that last email, I just got a scan! its far from perfect >>>> but im on the right road at least (mostly your advice ;) ). One of my >>>> GPIO wasnt set correctly and you were right about the bit 8 being set on >>>> the control reg of the AFE. >>>> >>>> An upload of the image is at >>>> http://sites.google.com/site/bez625/updates-1 . Its under Update >>>> 31/01/10 as an attachment. Im not sure what the next step here is but >>>> ill have a play myself. Any pointers from here are always welcome of >>>> course. >>>> >>>> Since things are progressing well I would like to know what the best >>>> procedure would be for adding this to the stable version of the sane >>>> api? I know we are a little far from this but it might be good for me to >>>> have an idea as this is obviously the intended outcome. >>>> >>>> Thanks >>>> >>>> Chris >>>> >>> Hello, >>> >>> good job. 'first light' is always a gratifying moment. For future >>> inclusion of your work, you might consider using a local git tree with a >>> dedicated branch. So that you will be able to generate patches. >>> >>> Regards, >>> Stef >>> >> Thanks Stef, how would I go about using the git tree? I've used SVN >> before but not git so it shouldn't take long for me to wrap my head >> around it. So far I just downloaded a copy of the development version >> from git and i've been working from that copy, i'm not sure how to make >> a new branch (or even if I have permission?). >> >> Also have you had a chance to look at the scan and suggest what i need >> to change? Im guessing that it might be a problem with the CCD, maybe it >> thinks the ccd is larger than it is? >> >> Thanks again >> >> Chris >> >> > Hello, > > once you have cloned the master branch of SANE. You can create any > number of > local branches. I have a few of them, about one by backend I touch. The few > commands I use are: > git branch to create or list branches > git pull [--rebase] to get latest version > git rebase to rebase a branch on lastest version > git merge to merge a branch on master version > git format-patch to generate patches from my local history > git am to apply patches generated by by format patch > You can do all these locally without write access to SANE's git tree. > At some > point, you'll need it. Then you'll have to ask for an account on alioth and a > project administrator will add you to the project. > > I have looked at the picture. What we see might relates to 'half ccd' > mode. > It is a mode where coordinates on the CCD are expressed in a resolution, but > the timings are such that effective resolution is only the half. See flag > GENESYS_FLAG_HALF_CCD_MODE. Another idea would be to compare registers 52 to > 57 (AFE timings) with ones from an usb log. > > Regards, > Stef > > > Cheers for the advice again stef, I just added the half ccd flag and it sorted out the image as it should look. The only issue now is that the scan seems a little dark, again ill upload the latest scan to the website (http://sites.google.com/site/bez625/updates-1/update020210). For the time being ill work with git to make sure im developing in the correct way ;), if you have a suggestion on the brightness issue let me know. Also I played with the offset and gain a little and neither seem to make any difference. Not sure what that is about.
Chris -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
