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I installed the libnfc on my ArchLinux and i would use it through my Adafruit PN532 arduino SHIELD.

nfc-list returns me the message "No NFC device found".

I have the following file in /etc/nfc/devices.d/pn532.conf that gives me

nfc-list uses libnfc 1.7.1 error libnfc.driver.pn532_uart pn53x_check_communication error error libnfc.chip.pn53x Unexpected PN53x reply! nfc-list: ERROR: Unable to open NFC device: pn532_uart:/dev/ttyACM0

Any idea about how to fix that ? TY

user5329034
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2 Answers2

5

First of all verify your Rx/Tx connections.

And then Configure LIBNFC with following command :

1) ./configure --with-drivers=pn532_uart --sysconfdir=/etc --prefix=/usr --enable-serial-autoprobe

2) make clean all

3) sudo make install all

And Finally 4) LIBNFC_LOG_LEVEL=3

Now Try 5) nfc-list

If Still problem persists try this tutorial from nfc-tool

Source/Reference

Suraj Jorwekar
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For me it worked to swap the RX <-> TX

Octav
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    This answer might solve the problem but does nothing to address the issue and indicates that something was most likely not set up correctly. – charliebeckwith Jan 25 '19 at 23:33
  • yes, wrong setup using OrangePi and https://dangerousthings.com/wp-content/uploads/PN532_Manual_V3-1.pdf – Octav Jan 27 '19 at 09:48
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    Edit your answer and maybe provide the solution you found in that manual? – charliebeckwith Jan 28 '19 at 06:12
  • That manual helped me identify the RX TX pins, but after 2 days of any configuration not working, even with having set in the OrangePi's armbian uart3 in the config to the according pins. Still, i had to swap the two pins... Oh!... so RX goes to TX, not the way i was used to a -> a and b->b, but output->input – Octav Jan 28 '19 at 15:58