I am trying to understand data format and how information is stored? Trying to read it by microcontroller.
I found many different formats, is their any good website explaining this the format and background communication protocol?
Vindhyachal_Takniki:
I am trying to understand data format and how information is stored? Trying to read it by microcontroller.
I found many different formats, is their any good website explaining this the format and background communication protocol?
Can we guess you are referring to the old magnetic strip on the back of the card?
If so, what kind of reader are you using to read the data?
The standard is for three strips of data. Each is recorded differently and each has sync bits on each end of the data strips so they can be read from either end.
Paul
Its not magnetic. Its EVMco types.
Is there any website/app note for easy explanation of protocol while payment transctions ?
Your CC provider service should have, and I've done CC programing for >10 years, an excellently written set of instructions to get you started with all the sentences that are sent and received. You should have been given the magic credit card number, the one where you can charge, cancel, get 'cash', and other credit card transactions where their system completely process the transaction but the transaction does not count; for troubleshooting.
So, in a nut shell, see your CC provider for that information.
This is one protocol I found in NXP sheet.
But the data format exchange is not given, from where I can download this?
move up..
Are you able to record the communications with REAL, LIVE, operating devices?
Paul
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