Print Page - Jtag Unknown targets

Dangerous Prototypes => Bus Blaster JTAG debugger => Topic started by: CheezeWiz on April 06, 2011, 07:01:36 pm

Title: Jtag Unknown targets
Post by: CheezeWiz on April 06, 2011, 07:01:36 pm

SO I'm going to go out on a limb here I want to know what the feasibility is of JTAG'ing a device after finding the correct pins and attempting to pull a firmware off it.

When really a lack of any documentation exists.. Lets say... no documentation exists although since the device is apart I can identify the chip.. so Having the bus blaster and also the bus pirate and a logic sniffer.

I'm trying to use the bus blaster to pull firmware off a known device such as the wrt54g once I find instructions for this , I'm hoping I can apply this to something of unknown origin. Personally I don't care about the wrt54g I'm just pointing this out as an example.

Where do I start?

I thought I'd make this a new thread since the other thread I started kinda went all over the place.

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#	Time	Memory	Function	Location
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