3 ms·
> 10. "Where is my chip lab grade oscilloscope?" 11. "Shit, where do I borrow a spectrum analyzer and a set of near field probes? These things cost an arm and
by kosma 9y ago
> 10. "Where is my chip lab grade oscilloscope?"
11. "Shit, where do I borrow a spectrum analyzer and a set of near field probes? These things cost an arm and a leg!"
Yes, STM32F1 MCUs generate inference that jams GPS receivers. No, it's not documented anywhere.
- yzmtf2008 9y agoAnd here's the documentation for future generations! :P
- northern_lights 9y agoany MCU can "jam" a GPS receiver if the board is laid out improperly or without enough shielding
- kosma 9y agoA bare, free-floating STM32F103 with literally nothing but a LiPo battery connected with two wires, running the blinky.c demo, will completely jam many GPS receivers when placed next to the antenna.
- makomk 9y agoYou'd be surprised how much you can find out just with a $10 TV tuner dongle and a piece of coax with a short section of the outer braid trimmed off at once end.
- nickpsecurity 9y ago12. "Try our new 7nm fab they said. You'll be ahead of 10nm competition with few issues. Now, gotta call engineers at the fab to see if it's materials or production messing my custom stuff up. (sighs)"