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<indy>
Chris__, auto detection?
<Chris__>
tried it before, it said no. cant test it right now to grab a screenshot, my desk is full of PC stuff rn and I put the printer board away for the weekend
<indy>
Chris__, i see at least 2 jtags (labeled jdftN) and something like three tracing ports
<Chris__>
making me get the board out now to double check that smh. lemme go check that real quick. I dont have a multimeter at home so I'll have to poke around when I get to work on monday
<Chris__>
Ah, i see the JDFT#, I dont know what they stand for, same with the JPRB# and JKMDB#. But like I said, on monday i'll poke around during my break to see where they go
<Chris__>
indy, anything in particular that i should look for then?
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<indy>
my guess is J(tag) D(esigned) F(or) T(esting)
<indy>
Chris__, how are you powering those boards?
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<olerem>
Chris__: JTAG pins can be disabled by the OS or bootloader. Sometimes, you need to prevent bootloader from starting to make JTAG work
<olerem>
or may be there is some extra pin with some pull-up/down to enabled/disable JTAG
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<Chris__>
indy, while at home I am using the 3.3v pins from the pi. i dont think my job would let me take the rest of the printer boards/printer itself home, cant even fit it in my car
<Chris__>
olerem, i tried looking for a physical jumper/short somewhere, but I didnt see one. and i wouldnt know how to prevent the bootloader from starting without the rest of the printer
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<karlp>
a common trick, I don't remember seeing mentioned to yo yet, is to short out some pins on the flash chip, so that it "fails to boot" and fails back to whatever rom bootloader it has.
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<makoto>
hello, how is the base address for a cfi flash determined? i know next to nothing about this target, other than it's a broadcom cortex-a7. i've got as far as writing .cfg for it and can halt it reliably, and it even sometimes spits data back, but i'm not so sure about how i'd go about this flash stuff. any pointers appreciated, it's my first time ^^
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<makoto>
hmm, reading some more maybe i've misunderstood and it's not cfi it's nand, but there is no driver that would support this cpu, i guess this is where having docs for my cpu would have been very helpful