Doc. No:
GR716-DEV-QSG
Issue:
0
Rev.:
2
Date:
2019-05-02
Page:
7 of 31
Status:
Draft
2.1.1
Board Jumper description
Jumper
Setting
Description/Comment
JP1
Connect Pin 1 to 2 → Reset
Connect Pin 3 to 4 → Break Enable
Connect Pin 5 to 6 → DSU Disable
Header Pin 1,2,3 and 4 allows an
additional external reset switch to be
connected. Pin 3 and 4 can be used to
force ‘BREAK’ at startup i.e. halt
processor execution after reset
JP2
Connect Pin 1 to 2 → For I2C to FTDI
Connect Pin 3 to 4 → For I2C to FTDI
Enables I2C remote access to GR716
device via USB-FTDI connector
JP3
Connect Pin 1 to 2 → For UART to FTDI
Connect Pin 3 to 4 → For UART to FTDI
Connect Pin 5 to 6 → For UART to FTDI
Enables UART remote access to GR716
device via USB-FTDI connector using IO
configuration 0
JP4
Connect Pin 1 to 2 → For UART to FTDI
Connect Pin 3 to 4 → For UART to FTDI
Connect Pin 5 to 6 → For UART to FTDI
Enables UART remote access to GR716
device via USB-FTDI connector using IO
configuration 1
JP5
Connect Pin 1 to 2 → Enable SPI4S
Enables SPI4S interface. Remove
connection/jumper and all signals from
SPI4S driver will be put to HiZ
JP6
Connect Pin 1 to 2 → Enable SpaceWire
Enables SpaceWire interface. Remove
connection/jumper and all signals from
SpaceWire driver will be put to HiZ
J2
GPIO connector 0 to 15
GR716 external pins #0 to #15. Pins are
protected by a series resistor of 470ohm
J3
GPIO connector 16 to 31
GR716 external pins #16 to #31. Pins are
protected by a series resistor of 470ohm
J4
GPIO connector 32 to 47
GR716 external pins #32 to #47. Pins are
protected by a series resistor of 470ohm
J5
GPIO connector 48 to 63
GR716 external pins #48 to #63. Pins are
protected by a series resistor of 470ohm
J6
SpaceWire/SPI connector
J7
SpaceWire connector
© Cobham Gaisler AB
