M5249C3 Freescale Semiconductor, M5249C3 Datasheet - Page 32

• Manufacturer Part Number: M5249C3
• Description: KIT EVAL FOR M5249 W/ETHERNET
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: Microprocessorr

Specifications of M5249C3

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MCF5249
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MCF5249
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Using the Monitor/Debug Firmware
DN
Usage:
The DN command downloads code from the network. The DN command handle files which are either
S-record, COFF, ELF or Image formats. The DN command uses Trivial File Transfer Protocol (TFTP) to
transfer files from a network host.
In general, the type of file to be downloaded and the name of the file must be specified to the DN
command. The -c option indicates a COFF download, the -e option indicates an ELF download, the -i
option indicates an Image download, and the -s indicates an S-record download. The -o option works only
in conjunction with the -s option to indicate an optional offset for S-record download. The filename is
passed directly to the TFTP server and therefore must be a valid filename on the server.
If neither of the -c, -e, -i, -s or filename options are specified, then a default filename and filetype will be
used. Default filename and filetype parameters are manipulated using the SET and SHOW commands.
The DN command checks the destination download address for validity. If the destination is an address
outside the defined user space, then an error message is displayed and downloading aborted.
For ELF and COFF files which contain symbolic debug information, the symbol tables are extracted from
the file during download and used by dBUG. Only global symbols are kept in dBUG. The dBUG symbol
table is not cleared prior to downloading, so it is the user’s responsibility to clear the symbol table as
necessary prior to downloading.
If an entry point address is specified in the S-record, COFF or ELF file, the program counter is set
accordingly.
Examples:
To download an S-record file with the name “srec.out”, the command is:
To download a COFF file with the name “coff.out”, the command is:
To download a file using the default filetype with the name “bench.out”, the command is:
To download a file using the default filename and filetype, the command is:
2-16
dn -s srec.out
dn -c coff.out
dn bench.out
dn
DN <-c> <-e> <-i> <-s> <-o offset> <filename>
M5249C3 User’s Manual, Rev. 1
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Freescale Semiconductor