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rusefi_documentation/Frankenso-Hall-Input.md

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Frankenso Hall Input

Typical Hall

For example, Mazda distributor sensors.

Frankenso setup for Mazda Hall sensor

Frankenso Trigger Pins

See Frankenso Default Pinout

Use Trigger #1 N for first sensor signal & Trigger #2 N for second trigger with 1K pull-up configuration

Leave Trigger #1 P & Trigger #2 P wires disconnected

Bench testing Mazda Hall

Test 1.1: Expected resistance between +5v wire and Trigger #1 N wire: 1K (See Frankenso Default Pinout)

Test 1.2: Expected resistance between +5v wire and Trigger #2 N wire: 1K

Test 1.3: ground/unground Trigger #1 N wire, should see event counter in triggerinfo go up

Test 1.4: ground/unground Trigger #2 N wire, should see event counter in triggerinfo go up

Goto board info: Frankenso VR Input

PS: technically MAX9926 is not really needed for Hall processing, two channels on the op-amp would do the job just fine and Frankenso has all the jumpers provisioned to make this happen on channels #9 and #11. See Frankenso Cam/Crank Input