EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: donna9 on September 25, 2017, 01:32:32 am
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See attached photo for reference
I have the ZBT WG3526 router.
There is no data sheet that i can find, nor is the manufacturer (ZBT) willing to help me...nice.
Could one of these in the photo be the allusive pins for:
# TDI (Test Data In)
# TDO (Test Data Out)
# TCK (Test Clock)
# TMS (Test Mode Select)
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https://wiki.openwrt.org/toh/hwdata/zbt/zbt_wg3526 (https://wiki.openwrt.org/toh/hwdata/zbt/zbt_wg3526)
https://www.linux-mips.org/wiki/JTAG (https://www.linux-mips.org/wiki/JTAG)
??
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Appreciated cdev ... i ended up spamming several more ZBT's sales engineers until one of them decided to contact their behind-the-scenes tech engineers (askign them to point me to where on this motherboard the JTAG lies since the wiki page says it has one). Besides getting back several more "go <bleep yourself" (paraphrasing) one did reply and told me the 3526 doesnt have one. So either this sales person is just being polite and blowing me off, or the wiki openwrt page (among other sites) are wrong. Since i cant know which, and it seems more likely the sales rep didn't actually ask i will just put this jtag adventure behind me
So as usual cdev thanks for your assist.
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Its likely either jtag or a UART (serial/console) port..
Are you familiar with the Sigrok ( http://sigrok.org (http://sigrok.org) ) -compatible-cheap fx2 based logic analyzers?
They are insanely cheap, some are as little as $8 on ebay..
Look for "24 MHz logic analyzer"
Make sure you get some probes with it.. some come with a cable and mini grabbers, some come with several cables..dupont cables, etc.
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Its likely either jtag or a UART (serial/console) port..
Are you familiar with the Sigrok ( http://sigrok.org (http://sigrok.org) ) -compatible-cheap fx2 based logic analyzers?
They are insanely cheap, some are as little as $8 on ebay..
Look for "24 MHz logic analyzer"
Make sure you get some probes with it.. some come with a cable and mini grabbers, some come with several cables..dupont cables, etc.
Hey that's very intersting! Thank you. I will grab one right now. :-+