SPI Interface
1-14
ADSP-BF518F EZ-Board Evaluation System Manual
U-Boot is controlled via a serial connection. The default setting is 56700
baud, 8 data bits, No parity, 1 stop bit. See
for information on the serial connector.
For more information about U-Boot, refer to the online documentation
at:
http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot
.
For U-Boot support on the Blackfin processors, refer to the online help
forums at:
fin.uclinux.org/gf/project/u-boot/forum/?action=ForumBrowse&foru
SPI flash can be modified. For instructions, refer to the Vi+
online Help, example program included in the EZ-Board installation
directory, and U-Boot documentation. U-Boot includes an SPI flash
driver and can be used to download a new file over Ethernet or serial con-
nection, and write the file
to SPI flash.
By default, the EZ-Board boots from the 16-bit flash parallel memory. SPI
flash can be selected as the boot source by setting the boot mode select
switch (
SW1
) to position 3. See
“Boot Mode Select Switch (SW1)” on
The audio codec is set up to use the
SPISEL3
signal as the SPI chip select.
The chip select is shared with the
CUD
signal. For more information, refer
to
“Audio Interface” on page 1-17
.
The Ethernet IC is set up to use the
SPISEL1
signal as the SPI chip select.
For more information, refer to
“Ethernet Interface” on page 1-16
.
