SatNogs COMMs
DM
The DM hardware is a SatNOGs revision v0.2.
Images
Connectors
All pinouts are given with the top left being the top left according to the LibreCube specification and looking from the top side.
PC104
Communication
| Pin | Name |
|---|---|
| H1.1 | CAN A L |
| H1.3 | CAN A H |
| H2.1 | CAN B L |
| H2.3 | CAN B H |
| H1.10 | SPI MOSI |
| H1.11 | SPI CLK |
| H1.12 | SPI MISO |
| H1.41 | I2C SDA |
| H1.43 | I2C SCL |
Power
| Pin | Name |
|---|---|
| H1.49 | VIN |
| H1.33 | GND |
| H1.34 | GND |
| H2.29 | GND |
| H2.30 | GND |
| H2.31 | GND |
| H2.32 | GND |
J301
Type: Molex SlimStack 55560-0221
This connector exposes FPGA pins used for connecting the Ethernet peripheral.
J302
Type: DF11-12DP-2DSA
This connector is used for programming / developing the FPGA.
The power pins are on the FPGA voltage bus.
Pin 1 is printed in bold.
J401
Type: DF11-12DP-2DSA
This connector is used for programming / developing the MCU.
The power pins are on the D(igital) voltage bus.
Pin 1 is printed in bold.
The DM PCB is modified to include the following changes:
- I2C SDA and I2C SCL are pulled high using 4.7kOhm resistors
- NJRST is connected to NRST pin of the MCU.
J402
Type: Hirose DF13C-CL535
This connector is used for interfacing with the onboard eMMC module.
ANT_DEP (J101)
Type: DF11-6DP-2DS
The pinout of the male connector looking from the front is shown here:
