COBHAM GR716-DEV, Быстрый старт

Страница: 17 / 31

Doc. No: GR716-DEV-QSG
Issue: 0 Rev.: 2
Date: 2019-05-02 Page: 17 of 31
Status: Draft
3.5.1 From external memory
This section lists external memory boot configurations i.e. when S1-8 is closed. Note that list only
includes valid configurations for the GR716 Development Board.
Table 1 Direct boot from external memory
S1 1
(EDAC)
S1 2
(Bypass ROM)
S1 3
(Disable test)
S1 4
(Redundant)
S1 5
(Copy ASW)
S1 6
(Source)
S1 7
(Source)
S1 8
(Remote)
Comment
Closed Open Don't care Closed** Closed Closed Closed Closed Boot direct from
external SPI memory
Closed Closed Closed Closed** Closed Closed Closed Closed Boot direct from
external SPI
memory after system
initialization and
memories has been
checked.
Closed Closed Open Closed** Closed Closed Closed Closed Boot direct from
external SPI memory
after system
initialization.
Open* Closed Closed Closed** Closed Closed Closed Closed Boot direct from
external SPI memory
with EDAC correction
enabled after system
initialization and
memories has been
checked.
Initialization.
Open* Closed Closed Closed** Open*** Closed Closed Closed Extract ASW
container from
external SPI memory
with EDAC correction
enabled after system
initialization and
memories has been
checked.
Initialization.
* Requires SPI PROM to be pre-programmed with correction codes
** Redundant SPI PROM requires additional board. Contact support@gaisler.com for more information.
*** Requires software to be stored using ASW format described in GR716 Datasheet
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