Re: [uClinux-dev] torrent client

2009-04-27 Thread Bobby Clark
There is the original python version of the first torrent client. It might be usable. The code was pulled a while back but should be out there some where. If you can't find it, I have it some where and should be able to lay my hands on it. Bobby - Original Message - From: Peter

Re: [uClinux-dev] SD card corruption upon reboot and de-power

2009-03-27 Thread Bobby Clark
Hi Michael, Did a little bit more checking. The smallest block size appears to be 512 bytes. The more common block size is 1024 bytes to 2048 bytes for the larger cards. At the time of the document in 2003 they were saying that for a 4 mega byte area they allotted a 3 percent amount of

Re: [uClinux-dev] SD card corruption upon reboot and de-power

2009-03-26 Thread Bobby Clark
Hi Jim, Thanks for sending that out. After reading page 3 it looks like the card maintains a pool of available addresses per zone and uses a new one for each new write. When the available pool of 3 % per zone is used up the card will fail. The wear leveling is not over the entire card as of

Re: [uClinux-dev] SD card corruption upon reboot and de-power

2009-03-26 Thread Bobby Clark
Based on a 4MB zone and a 3 % reserve block there would be 120k bytes of reserve bytes per 4MB zone. According to the doc the pool is a random assortment per zone. It all comes down to how fast 120k bytes wear out. Modern hard drives have a reserve pool and replace sectors or tracks that are

Re: [uClinux-dev] SD card corruption upon reboot and de-power

2009-03-26 Thread Bobby Clark
available counts. Bobby - Original Message - From: Bobby Clark To: uClinux development list Sent: Thursday, March 26, 2009 9:26 AM Subject: Re: [uClinux-dev] SD card corruption upon reboot and de-power Based on a 4MB zone and a 3 % reserve block there would be 120k bytes

Re: [uClinux-dev] SD card corruption upon reboot and de-power

2009-03-26 Thread Bobby Clark
reboot and de-power Read: ProdManualSDCardv1.9.pdf I never saw any such commands or status, 2009/3/26 Bobby Clark bcl...@airmail.net There were a number of patents issued to SanDisk starting in the early 90's for flash wear leveling. One of the more recent ones is 6,985,992

Re: [uClinux-dev] Could it possible to port uClinux to 51 based MCU?

2007-02-14 Thread Bobby Clark
- Original Message - From: Greg Ungerer [EMAIL PROTECTED] To: uClinux development list uclinux-dev@uclinux.org Cc: [EMAIL PROTECTED] Sent: Wednesday, February 14, 2007 5:54 PM Subject: Re: [uClinux-dev] Could it possible to port uClinux to 51 based MCU? Hi Stevin, [EMAIL