Troubleshooting
8-25
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8.14 Troubleshooting
To bypass the full board initialization sequence, attach a terminal to the console
located on the front of the module. Configure the terminal parameters to be:
9600 bps, no parity, 8 data bits, 1 stop bit
Reset the module while holding down the ‘s’ key. Pressing the ‘s’ key forces a
default console configuration and bypasses enabling of caches, ECC, and PCI.
8.15 Download Formats
8.15.1 Binary
The binary download format consists of two parts:
•
Magic number (which is 0x12345670) + number of sections
•
Information for each section including: the load address (unsigned long), the
section size (unsigned long), and a checksum (unsigned long) that is the
long-word sum of the memory bytes of the data section
8.15.2 Motorola S-Record
S-Record download uses the standard Motorola S-Record format. This includes
load address, section size, and checksum all embedded in an ASCII file.
Table 8-2. Optional Environment Variable
b
Variable
Default Value
Description
ecc
on
Enable/disable ECC protection (on = enable,
off = disable)
b
This is not initialized by initenv. (Note: This variable is currently not implemented.)
Summary of Contents for PmPPC440
Page 1: ...PmPPC440 PowerPC Based Processor PMC Module User s Manual April 2005 ...
Page 3: ...PmPPC440 PowerPC Based Processor PMC Module User s Manual April 2005 ...
Page 14: ...viii PmPPC440 Contents ...
Page 34: ...2 14 PmPPC440 Setup April 2005 ...
Page 42: ...3 8 PmPPC440 PPC440GP Processor April 2005 ...
Page 56: ...6 4 PmPPC440 Ethernet Interface April 2005 ...