194 lines
10 KiB
Markdown
194 lines
10 KiB
Markdown
# Connector Pinout
|
|
|
|
|
|
|
|
|
|
|
|
Rear side of PCB
|
|
|
|
|
|
|
|
# Pin Descriptions
|
|
|
|
Each pin has a *Type ID*, which can be used to look up in the following tables what the pin is for, and what functions it can perform.
|
|
|
|
| Pin Number | Name | Type ID | Default function |
|
|
| ----------:|:-------- | ------- |:---------------------------------------------------- |
|
|
| 1 | **12V** | 12V | 12V supply from main relay output, see also pin #29 |
|
|
| 2 | **GND** | pgnd | Power GND |
|
|
| 3 | **Lowside 2** | ls | Idle solenoid |
|
|
| 4 | **ETB+** | etb | ETB+ |
|
|
| 5 | **12V** | 12V | 12V supply from Key (turn on/off power) |
|
|
| 6 | **GND** | pgnd | Power GND |
|
|
| 7 | **Lowside 1** | ls | VVT |
|
|
| 8 | **ETB-** | etb | ETB- |
|
|
| 9 | **Ignition 1** | ign | Ignition 1 |
|
|
| 10 | **Ignition 2** | ign | Ignition 2 |
|
|
| 11 | **Ignition 3** | ign | Ignition 3 |
|
|
| 12 | **Ignition 4** | ign | Ignition 4 |
|
|
| 13 | **GP out 6** | gp_high | Alternator (see JP2 jumper note) |
|
|
| 14 | **GP out 5** | gp_high | (see JP2 jumper note) |
|
|
| 15 | **USB D-** | usb | USB white wire |
|
|
| 16 | **USB D+** | usb | USB green wire |
|
|
| 17 | **GND** | sgnd | Signal GND |
|
|
| 18 | **AN Temp 1** | at | CLT sensor |
|
|
| 19 | **AN Volt 4** | av | **Starting from version 0.5.0 this pin can be used as 5V input for USB connection through main connector (No need to open case to access micro-USB connector)** |
|
|
| 20 | **AN Volt 5** | av | Throttle position sensor (TPS) |
|
|
| 21 | **GND** | sgnd | Signal GND |
|
|
| 22 | **AN Temp 4** | at | |
|
|
| 23 | **AN Temp 2** | at | IAT sensor |
|
|
| 24 | **AN Temp 3** | at | |
|
|
| 25 | **Cam (hall)** | hall | |
|
|
| 26 | **AN Volt 2** | av | |
|
|
| 27 | **AN Volt 1** | av | MAP sensor |
|
|
| 28 | **AN Volt 10** | av | |
|
|
| 29 | **Main relay** | mr | Main relay control signal (low side) |
|
|
| 30 | **AN Volt 7** | av | |
|
|
| 31 | **AN Volt 3** | av | Throttle Pedal Position Sensor (PPS) |
|
|
| 32 | **AN Volt 6** | av | External wideband O2 sensor |
|
|
| 33 | **GP out 3** | gp_low (gp_pp) | (IDLE stepper coil 2+) |
|
|
| 34 | **GP out 2** | gp_low (gp_pp) | Fan relay (IDLE stepper coil 1-) |
|
|
| 35 | **GP out 1** | gp_low (gp_pp) | Fuel pump relay (IDLE stepper coil 1+) |
|
|
| 36 | **AN Volt 8** | av | |
|
|
| 37 | **Injector 1** | inj | Injector 1 |
|
|
| 38 | **Injector 2** | inj | Injector 2 |
|
|
| 39 | **5V Sensor 2** | 5v | MAP sensor supply |
|
|
| 40 | **AN Volt 9** | av | |
|
|
| 41 | **Injector 3** | inj | Injector 3 |
|
|
| 42 | **Injector 4** | inj | Injector 4 |
|
|
| 43 | **GP out 4** | gp_low (gp_pp) | (IDLE stepper coil 2+) |
|
|
| 44 | **5V Sensor 1** | 5v | TPS sensor supply |
|
|
| 45 | **VR+/Hall** | vr/hall | Crank VR+/hall |
|
|
| 46 | **VR-** | vr | Crank VR- (do not connect if hall) |
|
|
| 47 | **CAN low** | can | CAN bus |
|
|
| 48 | **CAN high** | can | CAN bus |
|
|
|
|
In some cases without "main relay output +12v" both pins #1 and #5 should be connected to the single source of +12v.
|
|
|
|
Pin #1 feeds ETB H-bridge, battery voltage sense, gp5 & gp6 high-side +12v, TLE8888 H-bridges.
|
|
|
|
# Pin Types
|
|
|
|
These tables provide technical information about the different types of pin found on microrusEfi.
|
|
|
|
## Power
|
|
|
|
| ID | Type | Notes & Limits |
|
|
|----|-------------| ---- |
|
|
| 12V | Power supply | 9-22V operating, 5A fuse recommended |
|
|
| pgnd | Power ground | Solidly ground directly to chassis or engine block. |
|
|
| sgnd | Signal ground | Sensor ground. ***Do not ground to engine!***
|
|
| 5v | 5V sensor supply | 5V supply for external sensors. 200mA maximum per pin.
|
|
|
|
|
|
## Stepper
|
|
|
|
| Pin | Name | Notes & Limits |
|
|
|------|---------------------| ------------------------------------------------------------------------------------ |
|
|
| #33 | GP4 | Coil #2 |
|
|
| #34 | GP2 | Coil #1 |
|
|
| #35| GP1 | Coil #1 |
|
|
| #43 | GP4 | Coil #2 |
|
|
|
|
|
|
|
|
## Input
|
|
|
|
| ID | Type | Notes & Limits | Possible functions |
|
|
|------|---------------------| ------------------------------------------------------------------------------------ | --- |
|
|
| at | Analog temperature | Analog temperature (thermistor) input. <mark>2.7k/TBD</mark> pullup resistor to 5v | Thermistor temperature sensor, fuel level sender (variable resistor type) |
|
|
| av | Analog voltage | Analog voltage input. 500k pull down to GND | Analog voltage sensor (MAP, TPS, acc pedal, oil pressure, etc)
|
|
| vr | Variable reluctor | VR crank input | VR sensors including crank, cam, vehicle speed
|
|
| hall | Hall cam/crank | <mark>TBD pull up to 5v</mark> hall sensor for cam/crank | Hall sensors including crank, cam, vehicle speed
|
|
|
|
## Output
|
|
|
|
| ID | Type | Notes & Limits | Possible functions |
|
|
|----|-------------| ---- | --- |
|
|
| inj | Injector output | Low side, 2.2A maximum<br/>**Only saturated (high impedance) injectors are supported.** | Injector, general purpose low side |
|
|
| ign | Ignition output | 5V push-pull, 250mA maximum | Ignition coil, general purpose 5V push-pull
|
|
| ls | High power low side | General purpose low side output, 4.5A maximum | General purpose low side, injector
|
|
| gp_high | General purpose high side | General purpose high side push output, 5V/12V (internally selectable based on JP2 jumper) 250mA maximum | General purpose 5V/12V high side, ignition coil
|
|
| gp_low | General purpose low side | General purpose low side pull output, 12V 500mA maximum | General purpose low side
|
|
| gp_pp | General purpose Push-Pull | General purpose push-pull (low and high side) output, 600mA | Bipolar IDLE stepper, relays, solenoids |
|
|
| mr | Main relay | Dedicated main relay output. Low side turned on with power, 800mA maximum. | Main relay
|
|
| etb | Electronic throttle | Dedicated electronic throttle outputs. Connect a brushed motor<br/>throttle body directly to these two pins.
|
|
|
|
## Communication
|
|
|
|
| ID | Type | Notes & Limits |
|
|
|----|-------------| ---- |
|
|
| usb | USB | USB tuning interface
|
|
| can | CAN bus | CAN communication
|
|
|
|
USB cable green wire: USB D+ DATA+
|
|
|
|
USB cable white wire: USB D- DATA-
|
|
|
|
USB cable black wire: ground
|
|
|
|
USB cable red wire: +5v (would not work via microRusEfi connector for versions < 0.5.0)
|
|
|
|
## Hall type Crank sensor
|
|
|
|
See TLE8888 datasheet figure 71
|
|
R9=DNP
|
|
R15=DNP
|
|
R17=2.7K pull-up to 5v
|
|
|
|
R12=10K
|
|
R13=0R
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Extra pins
|
|
|
|
microRusEFI exposes the following pins in addition to the primary 48 pin connector:
|
|
|
|
J4:
|
|
|
|
|
|
| N | Name | Possible functions (not all listed!) |
|
|
|----|-------------| ---- |
|
|
| 9 | GNS | GND
|
|
| 4 | VDD | 3.3V
|
|
| 1 | 5V | 5V
|
|
| 2 | 12V | 12V from Main Relay
|
|
| 3 | PB8 | I2C1_SCL or CAN1_RX
|
|
| 6 | PB9 | I2C1_SDA or CAN1_TX
|
|
| 8 | PC10 | SPI3_SCK or USART3_TX or UART4_TX
|
|
| 5 | PC11 | SPI3_MISO or USART3_RX or UART4_RX
|
|
| 10 | PC12 | SPI3_MOSI or USART3_CK or UART5_TX
|
|
| 7 | PA15 | SPI3_NSS (Chip Select)
|
|
|
|
Three GPIOs are available on J2 (SWD) connector. If you are not going to use debuger J2 connector can be used for other purposes.
|
|
| N | Name | Possible functions (not all listed!) |
|
|
|----|-------------| ---- |
|
|
| 7, 8 | GND | GND |
|
|
| 1, 2 | 5V | 5V |
|
|
| 3, 4 | VDD | 3.3V |
|
|
| 5 | SCK | SWD clock or PA14 gpio (no alternative functions) |
|
|
| 9 | SWDIO | SWD data or PA13 gpio (no alternative functions) |
|
|
| 6 | SWO | SWD/JTAG data out (?) or SPI1_SCK or SPI3_SCK |
|
|
| 10 | NRST | CPU reset input (active low) |
|
|
|
|
For HW version 0.5.0 and newer some additional GPIOs are available on testpoints around STM32.
|
|
|
|
|
|
Please refer to PCB layout for exact positions of this testpoints (no silk refdefs on PCB).
|
|
|
|
| Tespoint | GPIO | Possible functions (not all listed!) |
|
|
|----|-------------| ---- |
|
|
| J6 | PE0 | GPIO |
|
|
| J8 | PB7 | USART1_RX or TIM4_CH2 |
|
|
| J9 | PC13 | GPIO only |
|
|
| J10 | PE6 | TIM9_CH2 |
|
|
| J11 | PE5 | TIM9_CH1 |
|
|
| J16 | PD0 | CAN1_RX |
|
|
|
|
Please refer to STM32F407 chip documentation for full list of alternative functions of GPIOs listed above.
|