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Configuring the PPCBug Parameters
PCI Interrupts Route Control Registers (PIRQ0/1/2/3) = 0A050900
Initializes the PIRQx (PCI Interrupts) route control registers in the IBC (PCI/ISA Bus bridge
controller). The ENV parameter is a 32-bit value that is divided by 4 to yield the values for route
control registers PIRQ0/1/2/3. The default is determined by system type. For details on PCI/ISA
interrupt assignments and for suggested values to enter for this parameter, refer to the 8259
Interrupts section in the CPCI-6020CPCI-6020 CompactPCI Single Board Computer
Programmer's Reference Guide.
Serial Startup Code Master Enable [Y/N] = N?
The Serial Startup Codes can be displayed at key points in the initialization of the hardware
devices. Should the debugger fail to come up to a prompt, the last code displayed will indicate
how far the initialization sequence had progressed before stalling. The codes are enabled by
an ENV parameter.
Serial Startup Code LF Enable [Y/N] = N?
A line feed can be inserted after each code is displayed to prevent it from being overwritten by
the next code. This is also enabled by an ENV parameter.
A list of LED/serial codes is included in the section on MPU, Hardware and Firmware
Initialization in Chapter 1 of the PPCBug Firmware Package User's Manual, Part 1.
A means to execute user selectable BUG commands upon BUG startup has been added to the
ENV parameters. The usage is as follows:
Firmware Command Buffer Enable [Y/N] = N?
Y
Enables the Firmware Command Buffer execution.
N
Disables the Firmware Command Buffer execution (Default)
Firmware Command Buffer Delay = 5?
Defines the number of seconds to wait before firmware begins executing the startup commands
in the startup command buffer. During this delay, you may press any key to prevent the
execution of the startup command buffer.
The default value of this parameter causes a startup delay of 5 seconds.
Firmware Command Buffer ['NULL' terminates entry]?
CPCI-6020 CompactPCI Single Board Computer Installation and Use (6806800A51C)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
CNFG and ENV Commands
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