2021-06-13 11:15:08 -07:00
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This development board is PnP for NA6 and 94-95 Miatas.
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2021-02-19 14:55:39 -08:00
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2021-05-01 11:58:49 -07:00
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[nightly build](https://rusefi.com/build_server/rusefi_bundle_hellenNA6.zip)
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2021-05-19 23:50:58 -07:00
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[[schematic rev a]](Hardware/Hellen/hellen64_miataNA6_94-a-schematic.pdf)
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[[ibom rev b]](https://rusefi.com/docs/ibom/hellen64_miataNA6_94-b-ibom.html)
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[[Pinout]](https://rusefi.com/docs/pinouts/hellen/hellen64_miataNA6_94/)
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2021-04-10 09:34:13 -07:00
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2021-05-25 09:52:52 -07:00
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[preview draft of future revision subject to change](Hardware/Hellen/hellen64_miataNA6_94-b-schematic.pdf)
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2021-04-30 08:15:22 -07:00
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2021-02-19 14:55:39 -08:00
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[Mazda Miata 1990](Mazda-Miata-1990)
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[Mazda Miata 1994](Mazda-Miata-1994)
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2021-04-29 11:13:36 -07:00
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2021-04-30 06:46:05 -07:00
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## Hardware features
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2021-04-30 06:45:49 -07:00
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* knock detection module
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* build-in WBO
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* battery to keep real time clock running
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* LPS25HB baro sensor
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2021-04-30 07:38:12 -07:00
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* QMA7981 accelerometer on rev A.
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2021-05-20 15:18:02 -07:00
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* LIS2DW12TR accelerometer on rev B
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2021-04-30 06:45:49 -07:00
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2021-05-20 15:18:02 -07:00
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2021-04-30 06:45:49 -07:00
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2021-05-24 12:59:29 -07:00
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## Extension Pads (rev. b)
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2021-05-20 15:18:02 -07:00
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2021-05-24 12:58:25 -07:00
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| Pin | Type | Comments |
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2021-05-20 15:18:02 -07:00
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|---|---|---|
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2021-05-24 12:58:25 -07:00
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||**Outputs**||
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| P9 | PP | 1.5 A peak |
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| P10 | PP | 1.5 A peak |
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| P12 | Bridge driver A | 3 A peak |
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| P11 | Bridge driver A | 3 A peak |
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| P13 | Bridge driver B | 3 A peak |
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| P14 | Bridge driver B | 3 A peak |
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| P8 | Low side | 1.4 A |
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| P15 | Low side | 1 A |
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| P16 | Low side | 1 A |
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| P17 | Low side (always hot) | 0.5 A |
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| P18 | Low side | 0.5 A |
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| P19 | Low side | 0.5 A |
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| P20 | Low side | 0.5 A |
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| P21 | Low side | 0.5 A |
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| P22 | High side | 4 A |
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| P23 | High side | 4 A |
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| P24 | PP 5 V | 20 mA |
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| P25 | PP 5 V | 20 mA |
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| P29 | PP 5 V | 20 mA |
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| P30 | PP 5 V | 20 mA |
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| P31 | PP 5 V | 20 mA |
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| P32 | PP 5 V | 20 mA |
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| | **Inputs** | |
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2021-05-26 13:25:31 -07:00
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| P1 | Knock | |
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2021-05-24 12:58:25 -07:00
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| P26 | Discrete pull down | |
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| P27 | Discrete pull down | |
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| P28 | Discrete pull down | |
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| P33 | Analog pull up | |
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| P34 | Analog pull up | |
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| P35 | Analog pull down | |
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| P36 | Analog pull up | |
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| P37 | Analog pull up| |
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| P38 | Analog pull down | |
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| P39 | Analog pull down | |
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| P40 | Analog pull up | |
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| P41 | Analog pull up | |
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| P42 | Discrete pull up | |
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| P43 | Discrete pull down | |
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| P44 | Discrete pull up | |
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| P45 | Discrete pull down | |
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| | **MCU** | |
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| P3 | GPIO | |
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| P4 | GPIO | |
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| P5 | GPIO | |
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| P6 | GPIO | |
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2021-05-26 13:26:18 -07:00
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| J4 | SPI, UART, I2C, GPIO | See silkscreen and schematic for details |
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