2021-07-13 13:38:41 -07:00
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This development board is PnP for Mercedes with the 128 Pin ECU (M111 and M113 engine; late 90s-early 2000s. confirm your ecu)
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2021-07-06 13:34:10 -07:00
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2021-07-13 13:38:41 -07:00
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[Download release firmware](https://github.com/rusefi/rusefi/releases/latest/download/rusefi_bundle_hellen128.zip)
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[Nightly firmware bundle](https://rusefi.com/build_server/rusefi_bundle_hellen128.zip)
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[Ebay]()
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[Pinout](https://rusefi.com/docs/pinouts/hellen/hellen128/) & [Google Sheet](https://docs.google.com/spreadsheets/d/1I-lZKRajTiEGFUXdZpXEtKF2pymlOo-lPahy3cLMnl4) & [Another Google Sheet](https://docs.google.com/spreadsheets/d/1JgGFJ8AggBFiKT_CQ1D6uYhaIsqeiH9RerxuVy1kp4Y/)
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2021-02-13 07:05:58 -08:00
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2021-06-10 17:39:40 -07:00
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[[Issue Tracker]](https://github.com/rusefi/hellen128merc-issues)
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2021-07-13 13:38:41 -07:00
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[Schematics rev a](Hardware/Hellen/hellen128mercedes-a-schematic.pdf)
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2021-07-05 13:01:56 -07:00
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2021-07-13 13:38:41 -07:00
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[iBom rev a](https://rusefi.com/docs/ibom/hellen128mercedes-a-ibom.html)
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2021-05-12 20:48:28 -07:00
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2021-07-13 13:38:41 -07:00
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## Hardware features
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*
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*
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*
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*
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*
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*
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2021-05-12 20:48:28 -07:00
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2021-05-26 13:45:29 -07:00
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## Extension Pads (rev. a)
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| Pin | Type | Comments |
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|---|---|---|
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||**Outputs**||
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| P33 | Bridge driver B | 3 A peak |
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| P34 | Low side | 0.5 A |
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| P35 | Low side | 0.5 A |
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| | **Inputs** | |
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| P30 | Analog pull up | |
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| P31 | Analog pull down | |
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| P32 | Analog pull down | |
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| | **MCU** | |
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| J1 | SPI, UART/GPIO | See schematic for details |
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| | **WBO1** | |
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| J9 | XH-8 WBO1 connector| |
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| P19 | GND | |
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| P21 | H- | |
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| P22 | R Trim | |
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| P23 | Ip | |
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| P24 | Vs/Ip | |
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| P25 | Vs | |
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| J7 | SWD| |
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| | **WBO2** | |
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2021-05-29 14:02:52 -07:00
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| J18 | XH-8 WBO2 connector| |
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2021-05-26 13:45:29 -07:00
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| P18 | GND | |
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| P20 | H- | |
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| P26 | R Trim | |
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| P27 | Ip | |
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| P28 | Vs/Ip | |
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| P29 | Vs | |
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2021-06-11 14:47:43 -07:00
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| J19 | SWD | |
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## Ignition jumpers (rev. a)
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| Vehicle | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F11 | F12 | F13 | F14 | F15 | F16 | F17 |
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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
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| Connctor pin **(NOT jumper designator!!!)** | F4 | F5 | F6 | F7 | F9 | F10 | F11 | F12 | F13 | F14 | F16 | F17 | F18 | F19 | F20 | F21 |
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| IGNx signal | IGN5 | IGN5 | IGN3 | IGN3 | IGN7 | IGN7 | IGN8 | IGN8 | IGN4 | IGN4 | IGN2 | IGN6 | IGN6 | IGN2 | IGN1 | IGN1 |
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| 4 cyl 2 coil | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | ✔️ | 🟡 | 🟡 | 🟡 | 🟡 | 🟡 | ✔️ | 🟡 |
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| Other model | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? | ? |
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2021-06-11 14:54:28 -07:00
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2021-06-11 14:47:43 -07:00
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🟡 - it doesn't matter, the specified pin is not connected
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2021-06-11 14:54:28 -07:00
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| Coil type | R43 | R59 | R67 | R60 | R79 | R66 | R74 | R62 | R76 | R63 | R77 | R64 | R78 | R65 | R73 | R61 |
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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
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| Dumb | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ |
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| Smart | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ | ✔️ | ❌ |
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