hellen72-frame-specs.txt
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*** Hellen One: Hellen72 Frame specs (DRAFT) ***
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General info: https://rusefi.com/s/hellen72/
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EDA Software: Altium Designer
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Board/connector footprints source: <.../hw_72_nb>
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Pinout spreadsheet: <...>
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Modules:
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- mcu/0.1
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- input/0.1
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- output/0.1
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- power5/0.1
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- power12/0.1
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- can/0.1
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- lin/0.1
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- ign8/0.1
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- sd/0.1
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- stlink/0.1
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- knock/0.1
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- Additional components:
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- USB-B vertical TH: TE 5787834-1
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- "PROG" button
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- "RESET" button
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- Accelerometer
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- MAP sensor: MPX4250AP
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- SD-Card module connector: <SD-CARD module info>
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- "Extension port" connector:
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- UART
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- SPI
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- IO1-IO4
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- +3.3V, +5V, +12V, GND
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- Board configuration:
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- Jumper resistors for pins:
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- 3L = IN_AFR or OUT_IGN7
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- 3Z = GNDA or OUT_IGN5
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- 4K = V5A or OUT_IGN6
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- 4U = IN_MAP2 or OUT_IGN8
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- IN_VIGN = 4S or 4T
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- Standard input pullups (V5A):
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- RES1, RES2
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- AUX1, AUX2, AUX3, AUX4
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- TPS, PPS, O2S, O2S2, IAT, CLT
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- CRANK, CAM, VSS
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- SENS3 (FUEL_LEVEL)
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- Standard input pulldowns (GNDA):
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- MAP1, MAP2, MAP3, MAP4
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- KNOCK
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- SENS1, SENS2, SENS4
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- Additional pulldowns (GNDA):
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- IN_MAF (1k)
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- Additional LEDS:
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- IGN1-IGN8 (to GND)
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- INJ1-INJ8 (to +12V, protected)
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- AC, PUMP, IDLE, ECF, VVT, O2H, O2H2, CE, ALT_WARN, MAIN, CANIST (to +12V, protected)
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- TACH, ALTERN, VIGN (to GND, protected)
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- CRANK, CAM, VSS (to +5V, protected)
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- +5V, +3.3V
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- Jumper resistors for LEDS: VSS, CAM, CRANK
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- Additional TEST PADS:
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- +12V
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- +5V
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- +3.3V
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- GND
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- Silkscreen:
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- silkscreen/board orientation - the ECU connector is at the top
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- all pins named (both sides)
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- https://rusefi.com/s/hellen72/
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- "for notes" area 50x20 mm
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- Special layout requirements:
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- SD-Card should be 10-20 mm away from other components
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- MPX4250 hose output opposite to the ECU connector
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