Write Protection of a device flash

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Claudio
Posts: 12
Joined: Thu May 30, 2013 8:16 am

Write Protection of a device flash

Post by Claudio »

Good morning, we are developing on MOD5441x.

For production devices, we need to disable the download of application through Ethernet, to prevent any unwanted remote device flashing. We searched the forum, but we were not able to find the information we need. We have tried to use alternate boot monitor, but when giving the command WriteProtect, it answers "Unrecognized command". Is any other commands available? Moreover, does "Write Protect" mean flash write protect, or does it refer to any other memory device like sd card?

This is what we see in MTTTY alternate boot session:

nb>version
Netburner MCF5441x Alternate Image Monitor V1.00 May 29 2012 15:25:39
nb>help
Block Fill BF<width> BEGIN END DATA
Boot Boot
Flash Apps FLA
Help Help
Memory Display MD<width> <begin> <end>
Memory Modify MM<width> addr <value>
Memory Read MR<width> addr
Ram memory test MT BEGIN END
NATIVEBOOT Nativeboot
Register Display RD reg
Register Modify RM reg data
Reset Reset
Setup options Setup
Un Write Protect Un WriteProtect
Version Version
Write Protect WriteProtect
nb>WriteProtectUnrecognized command
nb>

Thank you.
rnixon
Posts: 833
Joined: Thu Apr 24, 2008 3:59 pm

Re: Write Protection of a device flash

Post by rnixon »

The only way network downloads are enabled in an application is if you call EnableAutoupdate(). So just delete that function call.
Claudio
Posts: 12
Joined: Thu May 30, 2013 8:16 am

Re: Write Protection of a device flash

Post by Claudio »

Thank you very much.
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