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UM0851 bảng dữ liệu(PDF) 19 Page - STMicroelectronics

tên linh kiện UM0851
Giải thích chi tiết về linh kiện  SPEAr is a family of highly customizable ARM-based embedded
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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UM0851 bảng dữ liệu(HTML) 19 Page - STMicroelectronics

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UM0851
Boot loader overview
Doc ID 16604 Rev 2
19/245
Network commands
cmp
Memory compare
cmp.b 0x1300000 0x1600000
0x200000
cp
Memory copy
cp.b 0x1300000 0x1600000
0x300000
writemac
Write MAC address in I2C memory
This command writes 0x55 and 0xAA
as magic number(to say that MAC id is
present here) at offset 0 and 1 in the
chip and stores the MAC address from
offset 2
writemac 00:99:88:77:66:55
protect
Enable or disable Flash write protection protect off 1:0-5
Table 4.
Network U-Boot commands
Command
Behavior
Example
bootp
Boot image via network using
BootP/TFTP protocol
bootp 0x1600000 uImage
cdp
Perform CDP network configuration
dhcp
Invoke DHCP client to obtain IP/boot
parameters
Nfs
Boot image via network using NFS
protocol
ping
Send ICMP echo request to network
host
ping 192.168.1.1
tftpboot
Boot image via network using TFTP
protocol
tftpboot 0x1300000 uImage
rarpboot
Boot image via network using
RARP/TFTP protocol
writemac
Write MAC address in I2C memory
This command writes 0x55 and 0xAA
as magic number(to say that MAC id is
present here) at offset 0 and 1 in the
chip and stores the MAC address from
offset 2
writemac 00:99:88:77:66:55
Table 3.
Persistent storage U-Boot commands (I2C, NOR, NAND) (continued)
Command
Behavior
Example



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