If you have an OWON SDS7012 or are simply intrigued by o’scope hacking, you’ll want to check out this blog post (and others) by Christer Weinigel. For reference the user manual for the S3C2416 processor at the heart of the device can be found online here [PDF].
The main processor in the SDS7102 is a Samsung S3C2416 System On a Chip (Soc) with a DDR SDRAM as main memory and a NAND flash for storage. A basic embedded system very similar to the Samsung SMDK2416 reference design.
I’ve worked with other SoCs in the S3C24xx family before, so I kind of knew what to expect from the bootloader. NAND flash is a bit unreliable in a way, it’s normal for it to develop bit errors over time and that some flash pages are so damaged that they can’t be used at all. Any decent NAND flash file system will have to support error correcting codes (ECC) to fix bit errors and have mechanisms to remap bad flash pages. Most NAND manufacturers guarantee that the first sector or three in flash will not develop any errors, and thus it’s possible to put a minimal first stage bootloader there.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Steve Ballmer Serves Up a Fascinating Data Trove
Wearables — Chalk it up
Electronics — Look to ferrites (no, not ferrets, the European polecat) when faced with high frequency
Biohacking — A Run in the Altra IQ Smart Shoes
No comments yet.
Sorry, the comment form is closed at this time.