[time-nuts] Ublox Neo M8T no output on TP2 question please?

[Chris Wilson]

Hello Time Nuts!

 Sunday, January 20, 2019
 Thanks  for all the replies, I am now in e-mail contact with Alexander
 at  the sellers place. He asked last night if there's a jumper on the
 underside  of  the GPS board. At first I thought there was a tiny SMC
 resistor  or capacitor. It was in an area where flux residue existed,
 so  looked  like  a  post manufacture addition. Upon cleaning off the
 residue  I  now think there IS a solder jumper fro pin 1 of the Ublox
 to  somewhere else, maybe to the power supply area. I wonder if pin 1
 is  being held high or low? I am impatiently waiting for Alexander to
 see  the  photo  and  advise, what do you guys think? The photo is at
 http://www.chriswilson.tv/gps.jpg  Up  to now all attempts to get any
 output from pin 1 have failed. Thanks for all the replies again!
 


Best regards,
 Chris        mailto:chris at chriswilson.tv


LB> I have mislead you about NEO-M8T-0-10 TP 2 capabilities, sorry.
LB> https://www.u-blox.com/sites/default/files/products/documents/NEO-LEA-M8T_ProductSummary_%28UBX-16000801%29.pdf
LB> does not differentiate between two outputs and lists range as 0.25Hz-10MHz.

LB> Regarding flash/no-flash bootleg versions - mask ROM firmware
LB> residing on the die does not support FTS functions (there is not
LB> enough space for extra features and increasing the die size would
LB> increase base product cost) so if you have FTS product then it
LB> must have flash inside to run the code from. Whether this flash IC
LB> is of adequate size to accept future updates or whether its
LB> erasing and writing is supported by the main firmware in ROM is a
LB> separate question.  It is technically possible to create
LB> operational but non-upgradeable FTS product .

LB> Leo
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