SYS68K/CPU-30 R4 Technical Reference Manual
FGA Boot Software
Page 187
10.9 NETLOAD - Load File via Network to Memory
Format: NETLOAD <filename>,<start address>
[,<ethernet number>]
[, <target IP#>, <server IP#>]
The NETLOAD command loads the specified binary file via Ethernet to
memory. It uses the TFTP (Trivial File Transfer Protocol) to connect to
the server where the file is located. Therefore a TFTP server must exist.
What happens in detail:
• RARP:
1. If no IP (Internet Protocol) numbers are specified, NETLOAD
sends a RARP packet (Reverse Address Resolution Protocol) to
translate the board’s Ethernet number into an IP address. A RARP
server and a translation table are required for this task. E.g. on a
UNIX system the file ’/etc/ethers’ must contain the board’s Ether-
net number.
2. After the board has received its own IP number, a TFTP request is
sent to this server which has replied the RARP. The server now
starts sending the requested file. On a UNIX system, the file must
be located in the ’/tftpboot’ directory.
• ARP:
1. When the board’s own target IP and server IP number are given by
<target IP#> and <server IP #>, a standard ARP request is broad-
casted to get the Ethernet number of the server.
2. After the board has received the ARP reply, a TFTP request is sent
to the specified server. This server now starts sending the requested
file. On a UNIX system, the file must be located in the ’/tftpboot’
directory.
FORCE-BOOT> LO 200
add offset 200
16
to addresses
use ’~C’ to execute local command
~CLocal command? cat test.x
use ’cat test.x’ to transfer file
away for 2 seconds
!
FORCE-BOOT> DI 100200 5
list program
00100200 MOVE.L #$123456,D0
00100206 NOP
00100208 SUBQ.L #1,D0
0010020a BNE.B $100206
0010020c RTS
FORCE-BOOT> _
Содержание SYS68K/CPU-30 R4
Страница 41: ...Installation SYS68K CPU 30 R4 Technical Reference Manual Page 28...
Страница 127: ...Hardware Description SYS68K CPU 30 R4 Technical Reference Manual Page 114...
Страница 130: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 117 4 2 1 RTC 72421...
Страница 131: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 118 4 2 2 DUSCC 68562...
Страница 132: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 119 4 2 3 PI T TS68230...
Страница 133: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 120 4 2 4 SCSI 87033 34...
Страница 134: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 121 4 2 5 FDC37C65C...
Страница 135: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 122 4 2 6 LANCE Am79C90...
Страница 136: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 123 4 2 7 SIA Am7992B...
Страница 137: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 124 4 2 8 Motorola MC68030 and MC68882...
Страница 145: ...VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 132...
Страница 189: ...Appendix to VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 176...