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#1 2018-02-26 03:53:16
- huuii
- Contributor
- Registered: 2018-02-21
- Posts: 4
question about 'lf cmdread'
Hi,
I'm trying to figure out the usage of 'lf cmdread'. I used one pm3 to send a sequence and another pm3 to listen to the signal sending out, using 'lf snoop'. But I got the waveform like this whatever sequence I sent:
Learnt from http://www.proxmark.org/forum/viewtopic.php?id=5480
that the 2 second power on and the following 2 second wait period are too long for the `lf snoop` memory to hold, I followed the advice and revised the 'lf cmdread' source code.
After removing two lines of code WaitMS(2500) and WaitMS(2000) in the the source code proxmark3/armsrc/lfops.c, I retried the 'lf cmdread' and got some waveforms.
This is what I got when using lf cmdread d 0 z 8 o 8 c 1111111100000000111100001100
And this one is what we got when using lf cmdread d 0 z 8 o 8 c 11110111101100000
Are these waveforms reasonable? And do these waveforms match the sequence I sent?
Thank you in advance.
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#2 2018-02-26 06:09:56
- marshmellow
- Contributor
- From: US
- Registered: 2013-06-10
- Posts: 2,302
Re: question about 'lf cmdread'
Don't double post. It won't get answered faster.
I've removed your other hijack posting. If anyone wants to comment on your questions they can do it here.
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#3 2018-02-26 06:20:35
- huuii
- Contributor
- Registered: 2018-02-21
- Posts: 4
Re: question about 'lf cmdread'
Okay. Sorry about that.
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