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#1 2018-01-18 08:51:34

Sburb
Contributor
Registered: 2018-01-16
Posts: 6

EM4100 emulation with EM4305

Hello all,

I am looking for some information on how to emulate an EM4100 card with an EM4305.
I have read on the forum that it should be doable, but I have no idea on where to begin.

(I am looking specifically to understand the EM4305 chip. I have succesfully cloned an EM4100 card with a T5577 card, so I am not looking for a cloning solution)

Thanks !

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#2 2018-02-08 05:23:31

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4100 emulation with EM4305

Find a em4x05 datasheet.  It is essential for even understanding the block layout of the chip.

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#3 2018-05-08 03:49:14

hkplus
Contributor
Registered: 2015-01-07
Posts: 127

Re: EM4100 emulation with EM4305

The 4305 can't emulate the 4100 because it has a different modulation type. The AT5577 can emulate the 4100 because it has PSK modulation as an emulation setting.

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#4 2018-05-08 04:05:15

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4100 emulation with EM4305

@hkplus, that information is incorrect.

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#5 2018-05-08 04:11:16

hkplus
Contributor
Registered: 2015-01-07
Posts: 127

Re: EM4100 emulation with EM4305

I don't think 4305 has PSK but I could be wrong.

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#6 2018-05-08 04:16:36

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4100 emulation with EM4305

EM4100 is ASK/Manchester not PSK.

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#7 2018-05-08 04:20:21

hkplus
Contributor
Registered: 2015-01-07
Posts: 127

Re: EM4100 emulation with EM4305

There is a PSK version of the part. According to the 4100 datasheet: Data can be coded as Manchester, Biphase or PSK.

Last edited by hkplus (2018-05-08 04:22:29)

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#8 2018-05-08 04:34:01

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4100 emulation with EM4305

the psk version is a special order chip and is pretty rare, and not mentioned by the OP.  the vast majority of these are ask/manchester.

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#9 2018-05-08 04:48:51

hkplus
Contributor
Registered: 2015-01-07
Posts: 127

Re: EM4100 emulation with EM4305

The PSK version is definitely used in access control applications. I'm pretty sure that the 4305 can't emulate the 4100 but if I'm wrong that's fine too...i learn tons on this forum.

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#10 2018-05-08 05:04:38

marshmellow
Contributor
From: US
Registered: 2013-06-10
Posts: 2,302

Re: EM4100 emulation with EM4305

it can emulate the ask/manchester and ask/biphase versions of the EM4100 chips.  PSK would take a special EM4305 chip.

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