As they don't have the same functionalities, how to know to which circuit exactly we are addressing?ST25R3911B or ST25R3912 or ST25R3914 or ST25R3915ST25R3916 or ST25R3917 or ST25R3918 or ST25R3920ST25R3916B or ST25R3917B or ST25R3919B or ST25R3920BST25R100 or ST25R200ST25R300 or ST25R500 or ST25R501It seems each chip in the same group share the the same `ic_type` & `ic_rev`, so how to distinguish them in firmware?

Visitor II

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how to distinguish exact chipset in firmware

As they don't have the same functionalities, how to know to which circuit exactly we are addressing?

It seems each chip in the same group share the the same `ic_type` & `ic_rev`, so how to distinguish them in firmware?

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Best answer by Ulysses HERNIOSUS

Hi,

some of them are completely indistinguishable from chip perspective. Only package might be different.

A few may have features disabled which might be recognized by some intelligent code. But no general way available.

Regards, Ulysses

Technical Moderator

Hi,

some of them are completely indistinguishable from chip perspective. Only package might be different.

A few may have features disabled which might be recognized by some intelligent code. But no general way available.

Regards, Ulysses

Visitor II

Hi Ulysses
Than you for this response.

Can be interesting to modify ic_identity register to get more specific results in future :(