Related Manuals for COBHAM GR716-MINI
Summary of Contents for COBHAM GR716-MINI
- Page 1 GR716-MINI Development Board 2019 User's Manual The most important thing we build is trust GR716-MINI Development Board User's Manual GR716-MINI-UM, 2019, Version 0.2 www.cobham.com/gaisler...
- Page 2 GR716-MINI Intentionally Blank GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler...
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Page 3: Table Of Contents
Oscillators and Clock Inputs................20 4.13 Power Supply and Voltage Regulation..............21 4.14 Reset Circuit and Button...................22 4.15 Watchdog......................22 Setting Up and Using the Board...................23 Interfaces and Configuration..................24 List of Connectors.....................24 List of Oscillators, Switches and LED's............26 Change Record.......................29 GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... - Page 4 Figure 3-1: GR716-MINI Development Board..................7 Figure 4-1: GR716-MINI Board Block Diagram.................9 Figure .4-2: GR716-MINI Board Dimensions (top side)..............10 Figure .4-3: GR716-MINI Board Dimensions (bottom side - expansion connector)......10 Figure 4-4: Example of a Carrier board....................11 Figure 4-5: GR716 Microcontroller Block Diagram................12 Figure 4-6: GR716 Package.......................12...
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Page 5: Introduction
Scope of the Document This document provides a User's Manual and Interface document for the “GR716- MINI” Development and Demonstration board. The work has been performed by Cobham Gaisler AB, Göteborg, Sweden. Reference Documents [RD1] GR716, Data Sheet and User's Manual",Cobham Gaisler, GR716-UM-DS, available from http://www.gaisler.com/index.php/products/components/GR716... -
Page 6: Abbreviations
European Space Research and Technology Center GPIO General Purpose Input / Output Integrated Circuit Input/Output Intellectual Property Low Drop-Out Printed Circuit Board Point of Load System On a Chip Spacewire To Be Confirmed To Be Defined GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 7: Introduction
LVDS transceivers, regulators to support for single 3.3V supply, ideally suited for space and other high-rel applications. Because not all features of the GR716 can be simultaneously operated, the GR716-MINI Development Board comprises a custom designed PCB providing a compact implementation with a representative array of interfaces and features. -
Page 8: Handling
This board is intended for commercial use and evaluation in a standard laboratory environment, nominally, 20°C. All devices are standard commercial types, intended for use over the standard commercial operating temperature range (0 to 70ºC). GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 9: Board Design
CONFIGURATION 4 x ANALOG (ADC/DAC) Figure 4-1: GR716-MINI Board Block Diagram Note that not all features and interfaces are available at the same time, and the configuration of on-board resistors plus programming of registers is required to access some of the features. -
Page 10: Board Mechanical Configuration
For mounting of the board on a carrier or expansion board, four M2 mounting holes are provided in the corners of the board, as shown in the figure below. Figure .4-2: GR716-MINI Board Dimensions (top side) Figure .4-3: GR716-MINI Board Dimensions (bottom side - expansion connector) GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 11: Figure 4-4: Example Of A Carrier Board
GR716-MINI Figure 4-4: Example of a Carrier board GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 12: Gr716 Microcontroller
GR716-MINI GR716 Microcontroller The Cobham Gaisler GR716 Microcontroller features a fault-tolerant LEON3 SPARC V8 processor, communication interfaces and on-chip ADC, DAC, Power-on-Reset, Oscillator, Brown-out detection, LVDS transceivers, regulators to support for single 3.3V supply, ideally suited for space and other high-rel applications. -
Page 13: Memory
Figure 4-7: SPI Boot Memory Connections The SRAM is connected to the GR716 Microcontroller using the GPIO[50..49], GPIO[34..0], GPIO[18..0] signals as shown in the figure below. Figure 4-8: SRAM Signal Connections GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 14: Expansion/Interface Connector
Buffered reference voltage output (1.000V nom.) 25 x GPIO (up to) 25 General purpose I/O signals, acc section 4.9 3.3V input Power input for external supply, acc section 4.13 Table 1: List of Expansion Connector signals GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 15: Lvds Interfaces
FTDI Serial to USB Interface The GR716-MINI board provides an FTDI FT4232HL Serial to USB interface chip which provides up to 4 serial ports which connect to a single Micro-B USB connector (J1). -
Page 16: Analog Signals
GR716-MINI Analog Signals The GR716-MINI board provides four micro-miniature (MMCX) coaxial connectors to allow access to up to 4 ADC inputs or 4 DAC outputs of the GR716 microcontroller. As shown in Figure 4-11, depending on which resistors are installed, each MMCX connector can be either an ADC input or a DAC output. -
Page 17: Gpio
ADC or DAC signals. Care must be taken to account for this. No current limiting or overvoltage protection components are included on the GPIO signals of the GR716-MINI board. The signals are connected directly from the microcontroller to the expansion connector. -
Page 18: Bootstrap Signals
Pull-down GPIO63 Redundant Memory Available Pull-down DSUTX Copy ASW image/SPW default frequency Pull-up SPIM_MOSI Remote Access/Boot from Memory Pull-down SPIM_SCK Boot Source 0 Pull-down SPIM-SEL Boot Source 1 Pull-down Table 4: Bootstrap Resistor Settings GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 19: Debug Support Unit Interfaces
Debug Support Unit Interfaces Program download and debugging to the processor is performed using the GRMON Debug Monitor tool from Cobham Gaisler ([RD4]). The GR716 microcontroller provides a UART based DSU interface for Debug and control of the processor by means of a host terminal, as represented in Figure 4-12. -
Page 20: Oscillators And Clock Inputs
GR716-MINI 4.12 Oscillators and Clock Inputs The oscillator and clock scheme for the GR716-MINI Board is shown in Figure 4-13. Two oscillator inputs are required: CLK for the main system clock, and SPW_CLK for the SpaceWire clock of the microcontroller... -
Page 21: Power Supply And Voltage Regulation
LMZ21701 micro Point-of-Load regulator is included on the board which generates the 3.3V for the rest of the GR716-MINI board. In an alternative scenario, when the GR716-MINI board is installed on an Expansion board or Motherboard, it is intended that the Motherboard should generate a regulated 3.3V supply and provide this via the Expansion connector. -
Page 22: Reset Circuit And Button
The GR716 microcontroller includes an internal Watchdog timer function which can be used for the purpose of generating a system reset in the event of a software malfunction or crash. Please refer to [RD1]. GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 23: Setting Up And Using The Board
ERROR condition. To perform program download and software debugging on the hardware it is necessary to use the Cobham Gaisler GRMON3 debugging software, installed on a host PC (as represented in Figure 4-12). Please refer to the GRMON3 documentation for the installation of the software on the host PC (Linux or Windows), and for the installation of the associated hardware dongle. -
Page 24: Interfaces And Configuration
Not used DGND Ground Table 7: J1 USB type Micro B connector – FTDI Serial Link Name Comment Inner ANALOG Refer to section 4.8 Outer AGND Ground Table 8: J2,J3,J4,J5 MMCX miniature coax connectors GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 25: Table 9: Expansion Connector P1 Pin-Out
GR716-MINI Table 9: Expansion connector P1 Pin-out GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 26: List Of Oscillators, Switches And Led's
Table 10: List and definition of Oscillators and Crystals Name Function Description POWER 3.3V power Table 11: List and definition of PCB mounted LED's Name Function Description RESET Push button RESET switch Table 12: List and definition of Switches GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 27: Figure 6-1: Pcb Top View
GR716-MINI Figure 6-1: PCB Top View Figure 6-2: PCB Bottom View GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 28: Figure 6-3: Pcb Top View (Photo)
GR716-MINI Figure 6-3: PCB Top View (Photo) Figure 6-4: PCB Bottom View (Photo) GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... -
Page 29: Change Record
Change Record Issue Date Section / Page Description 2018-10-18 Draft Issue 2018-11-25 4.10 Updated default bootstraps to match SPI Flash boot Corrected start address Swapped figure 4-3 2019-05-02 Corrected frequency of crystal and default bootstrap GR716-MINI-UM, May 2019, Version 0.2 www.cobham.com/gaisler... - Page 30 Cobham; nor does the purchase, lease, or use of a product or service from Cobham convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Cobham or of third parties.
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