sorush nazari on Mon Oct 31 21:31:53 UTC 2005 > Guys have you supported the cannon 3200F scanner or not?
By popular demand, status update on CanoScan 3200F. Happened so far: - CanoScan 3200F Windows XP Twain driver communications analyzed and figured out the boot procedure - From firmware download at boot, using decompiling (manually, took about 3 months), figured out that the chip used is ALi M5625. - From similar (almost identical) Medion MD6190 HW analysis (thanks to Bert Sikken and Martin Haag) figured out many HW related procedures of the firmware. - From the USB command interpreter in the firmware figured out approximate meanings of many parameters. - From memory access patterns of motor control state machine and scan command procedures figured out meanings of the bulk downloads that occur before head movements and scans. - From low level windows DLL analysis figured out procedures to turn on and off the lamps (scan head and transparency adapter). - From Wolfson appplication note and USB snoops figured out the AFE calibration procedure. - From USB snoops figured out the lamp watchdog control. What I have so far: - Proper boot. - Scan head movement and home. - Line scan at 600 dpi (300/1200 are very similar). - Preliminary version of lamp control. - Preliminary version of AFE calibration. - All as stand-alone experimental programs around usblib. What I have to figure out next: - White/Black shading measurement, calibration and setting. - Proper scan procedures. What I hope to find somewhere ready made: - Staggered image unstaggering. - Skeleton to put everything together as a SANE back-end. Estimate: - I hope I will have a working back-end by 2Q06, i.e. about one year after I started working on this. Estimated working hours by completion 500. With best regards, Lauri Pirttiaho Oulu Finland ................................................................... Luukku Plus paketilla p??set eroon tila- ja turvallisuusongelmista. Hanki Luukku Plus ja helpotat el?m??si. http://www.mtv3.fi/luukku
