![rtd CMV6486DX100HR Скачать руководство пользователя страница 23](http://html1.mh-extra.com/html/rtd/cmv6486dx100hr/cmv6486dx100hr_user-manual_1497507023.webp)
23
Booting to Boot Block Flash with Fail Safe Boot ROM
The Fail Safe Boot ROM is a special build of ROM-DOS located inside a surface mounted Boot
Block Flash chip that is memory mapped to the SSD window. Boot Block Flash is a write protected flash
device that contains the BIOS and extra room where the Fail Safe Boot ROM is stored. The build is special
because it can understand the ROM DISK format on the flash chip. Additionally, Fail Safe Boot ROM is an
emergency interface accessible by an external computer. The ROM DISK in the Fail Safe Boot ROM con-
tains REMDISK and REMSERVE for remote access to the system’s disk drives. Due to the limited size of
the flash chip, Fail Safe Boot ROM lacks some functionality, however, the complete ROM-DOS is contained
on a floppy shipped with the board.
The purpose of the Fail Safe Boot ROM is to make the board bootable when the customer receives
cpuModule. Fail Safe Boot ROM can be used as an indicator of the board’s functionality when booting prob-
lems arise with another operating system. Additionally, Fail Safe Boot ROM acts as an example of what can
be programmed into the flash chip. Last, Fail Safe Boot ROM allows Files can be transferred on or off the
storage devices in the system by use of REMSERV and REMDISK.
If the user would need remote access to the system run REMSERV on the target system and REM-
DISK on the host system. The end result would be that the storage devices on the target system would appear
as additional drives on the host system. Information could then be transferred between hard disks by using a
standard NULL Modem cable over a serial port. REMSERV makes the connection appear as an additional
drive to the user. See the ROM-DOS manual for more information on this function.
The first time, your system will boot to the DOS prompt at the first available drive letter. If you do
not intend to use REMSERV or REMDISK or you intend to boot from another device, you will need to
disable Fail Safe Boot ROM. See the steps below for the method to disable it.
•
Reset the system by either shutting it off and turning it on or by using the reset button.
•
while the system is booting press the DEL key to enter the BIOS setup.
•
Choose ADVANCED SETUP using the arrow keys and enter.
•
Once in ADVANCED SETUP set Fail Safe Boot: to "DISABLED"
•
Make sure you configure the proper drive settings under STANDARD SETUP
prior to saving the settings and restarting the cpuModule.
NOTE!
Boards are shipped with Fail Safe Boot ROM enable.
When Fail Safe Boot ROM is enabled the system will boot to it
exclusively.
Содержание CMV6486DX100HR
Страница 2: ......
Страница 26: ...26...
Страница 28: ...28 I O Connections...
Страница 46: ...46...
Страница 48: ...48 Configuring Hardware...
Страница 74: ...74 An example BASIC program illustrating EEPROM access is in the file CMV_EE BAS on the cpu Module utility disk...
Страница 98: ...98...
Страница 108: ...108...
Страница 116: ...116...
Страница 118: ...118 RTD Embedded Technologies Inc 103 Innovation Blvd State College PA 16803 0906 USA Our website www rtd com...