32MB-SD-Card

Lock switch in "Writeable" position.

As you can see this switch is in no way connected to the circuit board (PCB). Its just a bit of plastic similar as the write protect slider on 3.5" Floppy disks.

Uploaded to show how he SD-Card "lock switch" works.

Indeed the little switch is only evaluated by the card reader, the card cannot protect itself
by setting the switch to locked. If the Appliance/or the cardreader is "evil" it can just ignore the setting of the switch and write to the card regardless of switch position.

The Switch is just a "flag" to be evaluated by the SD-Card reading device.

[Blogged here: www.electronics-lab.com/blog/?p=2620 Thank you! :) ]

This photo has notes. Move your mouse over the photo to see them.

To take full advantage of Flickr, you should use a JavaScript-enabled browser and
install the latest version of the Macromedia Flash Player.

Comments

baby7 says:

Beautiful....!
congratulations
Posted 23 months ago. ( permalink )

Greek_Sunshine says:

Andreas, you are so perceptive! Another great one!
Posted 23 months ago. ( permalink )

c.zwerg says:

Spannend so ein Karten-Innenleben! Zum Glueck ist mir noch keine 'evil' Variante untergekommen....;-))

Dir auch einen schoenen 1. Mai!
Und danke fuer den geotagging link, jetzt klappts endlich ;-)
Posted 23 months ago. ( permalink )

Minnie Wong says:

Oh....so strange...!!!
Posted 23 months ago. ( permalink )

jciv says:

Thanks for showing that. I keep wondering how brittle the switch is with all the switching when messing with the CHDK. At least I know there is no electronics to go bad.
Posted 23 months ago. ( permalink )

Viejito says:

Interesting to know, even though I use xD myself.
Posted 22 months ago. ( permalink )

Would you like to comment?

[?]

	Andreas.'s photostream
		2,205 uploads

This photo also belongs to:

	Misc (Set)
		131 items

	Macro (Pool)
		0

	The Secret Life of Technology (Pool)
		0

	Closer and Closer Macro Photography (Pool)
		0

	Electronic Porn (Pool)
		0

	Canon PowerShot S5 IS (Pool)
		0

2 people call this photo a favorite

Additional Information

Some rights reserved Anyone can see this photo

Taken with a Canon PowerShot S5 IS.
More properties
Taken on April 29, 2008
Viewed 3,163 times

Add to your map

Yay location removed

...

(Some formats are OK.)

Or, remove it from the map.

Go to the map

You	Sign in \| Create Your Free Account
Explore	Places \| Last 7 Days \| This Month \| Popular Tags \| The Commons \| Creative Commons \| Search
Help	Community Guidelines \| The Help Forum \| FAQ \| Sitemap \| Get Help

32MB-SD-Card

Comments

baby7 says:

Greek_Sunshine says:

c.zwerg says:

Minnie Wong says:

jciv says:

Viejito says:

Would you like to comment?

Andreas.'s photostream

Misc (Set)

Macro (Pool)

The Secret Life of Technology (Pool)

Closer and Closer Macro Photography (Pool)

Electronic Porn (Pool)

Canon PowerShot S5 IS (Pool)

Tags

Additional Information