NFC pn548(npc300) is not working with linux_libnfc-nci after rerun nfcDemoapp

[JarvisC]

Dear NXP,

After download linux_libnfc-nci from "https://github.com/NXPNFCLinux/linux_libnfc-nci.git", and modified I2C_BUS / I2C_ADDRESS / PIN_INT and PIN_ENABLE in linux OS Cent OS /Ubuntu OS, the NFC could work normal with nfcDemoapp , but it could not be re-run with nfcDemoapp tool with error message "Too many i2c read errors: ABORTING".

Please help to share the related information that could help me to debug/fix this defect?

Thanks.

[fury-1984]

Hello
How did you set the desired pins?(I2C_BUS / I2C_ADDRESS / PIN_INT and PIN_ENABLE )

[fangfang]

Hello @JarvisC .

Unfortunately, we don't have rights to support this product PN548. It is a NFC chip using in Mobile application. Specially supported by a mobile team in NXP. Please contact the local distributor or NXP marketing to request for special support.

Have a nice day.

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[JarvisC]

Dear NXP,

After debug the problem , I found that's related the error "_i2c_read() errno :79 ".

The error message is also reproduced on Cent7  and Ubuntu 18.04.6 OS.

Does anyone have any idea that could help to fix the defect?

Thanks.