Can NHS3100'firmware be initialized without battery?

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Can NHS3100'firmware be initialized without battery?

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preenness
Contributor I

I get "download error" message at the same point (a few seconds after the downloading starts) everytime . Is it beacuse of the absece of battery?

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danielchen
NXP TechSupport
NXP TechSupport

Hi Preenness:

 

All NHS31XX ICs support both wired and wireless flashing to store the firmware in the non-volatile FLASH memory.  Wired flashing uses the JTAG standard over the 2-pin electrical interface SWD. Wireless flashing uses the NDEF protocol over the NFC interface.

Wireless flashing requires a low-ohmic external supply connected to VBAT, Flashing is not possible on VNFC supply only.

Please refer to AN 12328 for more details.

 

Regards

Daniel

 

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danielchen
NXP TechSupport
NXP TechSupport

Hi Preenness:

 

All NHS31XX ICs support both wired and wireless flashing to store the firmware in the non-volatile FLASH memory.  Wired flashing uses the JTAG standard over the 2-pin electrical interface SWD. Wireless flashing uses the NDEF protocol over the NFC interface.

Wireless flashing requires a low-ohmic external supply connected to VBAT, Flashing is not possible on VNFC supply only.

Please refer to AN 12328 for more details.

 

Regards

Daniel

 

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preenness
Contributor I

Thank you Daniel, I've got it.

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