Monthly Archives: January 2013

Beckman 792 *** 661-1-R1K

It’s a resistor array, each contains 1k resistor. The connection is: Pin 16: commonPin 1-15: individual resistor, each 1 kilo ohm. Advertisements

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Roku 2 XS Internals

List of the chips inside: BCM 59002 From Broadcom: Mobile Power Management Unit SMC LAN 9512: Hi Speed USB 2.0 Hub and Ethernet controller AKM 4430 ET: 3.3volt 2 bit Stereo Audio digital audio converter BCM 4336 (inside the metal … Continue reading

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A Google interview

Question:There are some data represented by(x,y,z). Now we want to find the Kth least data. We say (x1, y1, z1) > (x2, y2, z2) when value(x1, y1, z1) > value(x2, y2, z2) where value(x,y,z) = (2^x)*(3^y)*(5^z). Now we cannot get … Continue reading

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Reverse Engineer USB protocol of Canon 4200F (part 1)

So far, there is no Linux driver support available for Canon Scanner 4200F, albeit with the latest and greatest kernel.  Blame the problem to Canon who doesn’t want to support Linux community. With the spirit of hacking, I now try … Continue reading

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FriendlyARM

My new Samsung S5VP210 based arm kit is now up and running on Android 4.0.3 (ICS).

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Mini210S-SDK43 vs. Beagleboard Rev B2

Beagleboard: root@beagleboard:~# cat /proc/cpuinfoProcessor       : ARMv7 Processor rev 3 (v7l)BogoMIPS        : 568.23Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3 CPU implementer : 0x41CPU architecture: 7CPU variant     : … Continue reading

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