Force SYS68K/CPU-30 R4, Техническое справочное руководство

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SYS68K/CPU-30 R4 Technical Reference Manual FGA Boot Software
Page 177
10 Special FGA Boot Commands
The booter on this CPU board is the FGA-002 Boot Software.
At first FGA Boot initializes the devices on the board and checks if the
board is System Controller (slot-1). If so, it enables the FGA-002 arbiter.
For more details about the slot-1 functionality, please refer to “Slot-1
Detection” on page 107.
Then it initializes the devices on the board and starts the firmware in the
second Boot Flash (at address FFE8.0000
16
) or the System Flash
Memory (at address FF00.0000
16
). It is also possible to specify an
address of a program in the battery buffered SRAM (see SETUP
command).
NOTE: The binary images on these locations must be program modules,
i.e. must provide an SSP (stack pointer) at offset 0 and a PC (program
counter) at offset 4.
If no program modules are found, the debugger will be started instead.
To start the debugger manually, both Rotary Switches must be set to ’F’
and the Abort Switch must be kept asserted while reset.
The standard commands of the debugger are described in section ‘FGA
Boot Software’ of the FGA-002 User’s Manual. Additional commands
available on this version of the booter are described in the following
chapters.
A short description of all commands will be listed on screen when
’? <cr>’ is typed in.
Line Editor The shell knows the following control characters for line editing:
ESC or CONTROL C
Break current command line.
CONTROL A Recall previous command.
CONTROL B Go to begin of line.
CONTROL E Go to end of line.
CONTROL H Move cursor one character left.
CONTROL L Move cursor one character right.
CONTROL D Delete character under cursor.
DEL Delete character left from cursor.
CONTROL \ Delete from cursor until end of line.
CONTROL O Delete whole line.
CONTROL I Toggle between insert/overwrite mode.
ENTER or RETURN Execute command line.
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