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Ellipse OEM - Development kit
General information
The OEM Ellipse Series Development Kit allows to simplify the using of the OEM Ellipse modules, thanks to the following components. It gives an access to all communication ports with the possibility to use several protocols (USB, CAN, RS232, UART).
A direct access to TTL signals is also possible to further analyze the ELLIPSE OEM behavior.
Content of the Ellipse OEM development kit
The development kit contains all the components to start rapidly testing the Ellipse OEM.
It of course includes the development board, but also cables, adapters, antennas (when relevant).
N° | Description | DK Ellipse – OEM | DK Ellipse N – OEM | DK Ellipse D – OEM |
1 | Development Board for ELLIPSE OEM | 1 pcs | 1 pcs | 1 pcs |
2 | AC/DC wall mount power supply, 3m cable and DC jack 2.1mm (US, UK & EU adapters included) | 1 pcs | 1 pcs | 1 pcs |
3 | Cable, USB A Male to USB Micro-B, 1m, black | 1 pcs | 1 pcs | 1 pcs |
4 | Coax Cable, U.FL to U.FL, Micro COAX 1.13/0.68 mm, 50 mm length | 2 pcs | 2 pcs | 2 pcs |
5 | Dual band GNSS patch antennas | - | 1 pcs | 2 pcs |
6 | Ground plane for patch antennas 100 mm | - | 1 pcs | 2 pcs |
7 | Screw Philips M2xL10 | 4 pcs | 4 pcs | 4 pcs |
Development board specifications
The development board is the central part of the Development Kit.
It offers an all in one testing interface that allows to connect the Ellipse OEM and give easy access to all the interfaces.
Board overview
The evaluation board has been designed to allow the customer to test and configure the OEM Ellipse Series without any electronics development, thanks to standard connectors and cables. It can be directly interfaced with your application (DB-9 for serial ports & CAN, DIL connectors for SYNC In and SYNC Out).
Connectors
Following connectors provide easy access to the board functionalities:
Port | Functionalities | Communication |
A | Port A TX/RX SYNC IN A / SYNC OUT A (Mapped no RTS/CTS) | USB, DIL (LVTTL) |
B | Port B Rx SYNC OUT B SYNC IN B | DIL (LVTTL) |
C | Port C TX/RX SYNC IN C | DB-9 (RS232), DIL (LVTTL) |
D | Port D TX/RX SYNC IN C | DB-9 (RS232), DIL (LVTTL) |
E | Port E TX/RX | DB-9 (RS232), DIL (LVTTL) |
CAN | CAN_L/CAN_H | DB-9 (CAN) |
Dimensions
Top view
Side View
GNSS Antenna connectors
In order to test the Ellipse-N or D, GNSS antenna connectors are available on the board (1x for Ellipse-N ; 2x for Ellipse-D). These antenna connectors are located on the top of the Ellipse OEM.
The connector type is U.FL. The main antenna should be connected to ANT1 and the secondary antenna should be connected to ANT2.
The GNSS antenna connectors are located on the top of the Ellipse N and D OEM. Only the ANT1 connector is available for the Ellipse N OEM.
Main connector specification
Connector | Manufacturer | Part Number | Description |
Ellipse main connector | HIROSE | DF40HC(3.0)-40DS-0.4V(51) | 40 Position Connector Receptacle, Center Strip Contacts Surface Mount |
Mating Connector | HIROSE | DF40C-40DP-0.4V(51) | 40 Position Connector Plug, Outer Shroud Contacts Surface Mount |
Development board schematics
Electrical specifications
Items | Conditions | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
Power Supply | |||||
Input Power Supply Voltage Range | 5 | 12 | 36 | V | |
Power (With Antennas) | 1.2 | 1.224 | 1.55 | W | |
Power (Without Antennas) | 1.10 | 1.13 | 1.44 | W | |
RS-232 Receivers, Sync In pins | |||||
Input range | -15 | 15 | V | ||
Low level threshold | 0,6 | V | |||
High level threshold | 2 | V | |||
Input resistance | 3 | 5 | 7 | kΩ | |
RS-232 Transmitters | |||||
Output range | +/-5 | +/-5,5 | V | ||
Sync Out pins | |||||
High Level Output voltage | ILoad < 100μA | 3,2 | V | ||
ILoad < 16mA | 2,6 | V | |||
Low Level Output voltage | ILoad < 100μA | 0,1 | V | ||
ILoad < 16mA | 0,4 | V | |||
CAN Bus | |||||
Recessive Bus Voltage | 2 | 2,5 | 3 | V | |
CAN H Output Voltage | Dominant | 2,75 | 3,5 | 4,5 | V |
CAN L Output Voltage | Dominant | 0,5 | 1,25 | 2,25 | V |
Absolute input voltage | CANH, CANL | -58 | 58 | V | |
Differential input voltage | CANH, CANL | 0,5 | 0,7 | 0,9 | V |
Interface specifications
Power input
The DC 2.1 mm Barrel connector input supports a wide DC input voltage range [5 – 36V].
Alternatively, for current monitoring purpose, it’s possible to directly power the Ellipse OEM module (without powering on the external components). In order to do so, the two jumpers between X9 and X10 should be defined according to the following configurations:
Use jumpers between X9 and X10 on position 1 and 2 for internal power supply.
Remove Jumpers between X9 and X10 on position 1 and 2 for external power supply. Apply Ellipse power supply at X9 pin 1 and 2.
RESET Button allows to shut down the Ellipse OEM without shut down the entire board
In the case or the power supply is done without the Dev kit please connect theses voltages on the following pins:
Net Name | Voltage |
VDD | 3,3V |
VDD_IO | 3,3V |
LED Configuration
The development Kit has 3 LED which have the following functionalities:
POWER LED: Indicate when the board is power supplied.
USB TX: Works when USB TX frame detected
USB RX: Works when USB RX frame detected
Port A
By default, PORT A, SYNC IN A and SYNC OUT A are accessible through the USB micro connector available on the evaluation board (X8).
Alternatively, these signals (LVTTL) can also be directly accessed from the Ellipse board using the dedicated 2,54mm DIL connectors (X7).
When the jumpers are removed, user can access to the direct Ellipse LVTTL signals (see below for the definition of each pin).
When these jumpers are ON, the access is driven to the USB port.
Jumpers X6, X7
Pin # | Definition (at TTL side) | Type |
|---|---|---|
1 | PORTA_RX | LVTTL Input |
2 | PORTA_TX | LVTTL Output |
3 | SYNC_IN_A | LVTTL Input |
4 | SYNC_OUT_A | LVTTL Output |
5 | GND | Ground |
The current using transceiver is a FT230XQ-R from FTDI
Ellipse electrical specifications apply when accessing directly at the TTL outputs.
Port B
By default, PORT B, SYNC IN B and SYNC OUT B are accessible through the dedicated DIL connector (X21) available on the evaluation board.
Jumper X21
Pin # | Definition (at TTL side) | Type |
|---|---|---|
1 | SYNC_OUT_B | LVTTL Output |
2 | VDD_IO | Power In |
3 | SYNC_IN_B/PORTB_RX/ODO_DIR | LVTTL Input |
4 | GND | Ground |
PORT C, PORT D and PORT E
By default, PORT C & D as well as SYNC IN C and D are accessible through their dedicated RS-232 DB-9 male connector available on the evaluation board (X4-Port C and X16-Port D).
Alternatively, these signals can be directly accessible from the Ellipse OEM development board using the dedicated DIL connector (X13, X15 and X18).
When the jumpers are ON, the access is driven to the RS-232 port.
The pinout on the DB-9 plugs is the following:
Pin # | Definition | Type | ||
|---|---|---|---|---|
PORT C | PORT D | PORT E | ||
1 | SYNC IN C | SYNC IN D | N/C | RS232 Input |
2 | PORT C RX | PORT D RX | PORT E RX | RS232 Input |
3 | PORT C TX | PORT D TX | PORT E TX | RS232 Input |
4 | N/C | N/C | N/C | N/C |
5 | GND | GND | GND | Ground |
6 | N/C | N/C | N/C | N/C |
7 | N/C | N/C | N/C | N/C |
8 | N/C | N/C | N/C | N/C |
9 | N/C | N/C | N/C | N/C |
At DB-9 side, the SYNC IN signals are inverted by the RS-232 transceiver.
When the jumpers are removed, user can access to the direct Ellipse signals with following pin definition:
Jumper X13 Port C
Pin # | Definition (at TTL side) | Type |
|---|---|---|
1 | PORT C RX | LVTTL Output |
2 | PORT C TX | LVTTL Input |
3 | SYNC IN C | LVTTL Input |
4 | GND | Ground |
Jumper X15 Port D
Pin # | Definition (at TTL side) | Type |
|---|---|---|
1 | PORT D RX | LVTTL Output |
2 | PORT D TX | LVTTL Input |
3 | SYNC IN D | LVTTL Input |
4 | GND | Ground |
Jumper X18 Port E
Pin # | Definition (at TTL side) | Type |
|---|---|---|
1 | PORT E RX | LVTTL Output |
2 | PORT E TX | LVTTL Input |
3 | GND | Ground |
4 | GND | Ground |
Ellipse electrical specifications apply when accessing directly at the TTL outputs.
CAN
CAN bus operation is available by default on the dedicated DB-9 plug (X4B) using a standard CAN pin-out as follows:
| Pin # | Definition | Type |
|---|---|---|
1 | NC | - |
2 | CAN_L | I/O |
3 | GND | Ground |
4 | NC | - |
5 | NC | - |
6 | NC | - |
7 | CAN_H | I/O |
8 | NC | - |
9 | NC | - |
A CAN bus termination resistor can be implemented by moving the X3 jumper as follows:
| X3 jumper position | Meaning |
|---|---|
1-2 | 120 Ohm Termination Disconnected |
3-4 | 120 Ohm Termination Connected |
Alternatively, putting off the X1 jumpers will give access to the direct TTL CAN interface signals.
Jumper X2 CAN
The pinout at X2 level is the following:
Pin # | Definition | Type |
|---|---|---|
1 | CAN RX | LVTTL Output |
2 | CAN TX | LVTTL Input |
3 | GND | |
4 | GND |
Default jumper configuration
The following jumpers configuration will be found when unboxing the development board:
