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rusefi / hellen-NB2-issues

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OK let's try making Hall happier one more time #8

Closed rusefillc closed 2 years ago

rusefillc commented 3 years ago

With Frankenso we have somehow settles on 5K - 5K is mention even in the engine sniffer image file name on https://rusefi.com/forum/viewtopic.php?p=20509#p20509

Do we want to revisit one more time in light of https://github.com/rusefi/rusefi/issues/2958 logic analyzer images?

2:14
if you have a shitty falling edge, it's generally because the pull up is too strong (sensor can't pull it down), you have a bad connection on the ground pin (essentially a resistor in the ground path) or you have a shitty connection on the signal wire and your internal capacitances on your ecu circuitry can't be "emptied" by the effectively high resistance to the hall sensor

stefanst  2:16 PM
I tested Miata "Hall" sensors with 2k2 and 12V and they produce a nice, sharp edge.

@andreika-git what are current pull-ups? which PN can I try changing in your opinion?

andreika-git commented 3 years ago

crank pull-up is 3.3k (R216) cam pull-up is 4.7k

BeerMoneyMotorsports commented 2 years ago

any update on this? @andreika-git do you see this as actionable? Do we need to make these changes on revE and other miata hellens?

BeerMoneyMotorsports commented 2 years ago

closing due to no response and no functionality issues with NB2 rev D