AVR-Chat

awww... you guys scared me huh
im thinking it may cause problem in the future...
i'll need a senior engineer beside me to study this...
thanks you guys for comments and suggestions

mago


David VanHorn <microbrix@gmail.com> wrote:                                  On 8/31/06, Dennis Clark <dlc@frii.com> wrote:
 >
 > You'd better use a very robust error detection/correction packet scheme.
 > Wireless is inherently unreliable.  Also, you'll need to be sure that
 > your device can deal with a corrupted download and still be able to be
 > put into "update" mode.  There is no reason it can't be done, but I
 > recommend a very paranoid protocol to handle it!
 
 I was about to suggest this, but you beat me to it.
 
 In general, the part that does the firmware update should be in the
 bootloader section, and protected so that it can't be erased.  The general
 philosophy is that no matter what, the part that does the firmware load (and
 radio management in your case) can't be vulnerable.
 
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