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NXP NCI having to unplug device on program restart

Question asked by George Waller on Jan 16, 2019
Latest reply on Feb 15, 2019 by Jonathan Iglesias


I'm using the MikroElektronika NFC dongle to do some comms with an ISO 15693 card. It uses the PN7150 transceiver. I've got the software that is provided with it from Mikro working in Eclipse. The annoying with however is that the NxpNci_Connect() function just hangs if called two times in a row, or the device will top responding after a random number of connections. This happens even if I call NxpNci_Disconnect(); before connecting. I also have to unplug and plug the device into the PC before I can connect again.


It happens with the demo program supplied with the software, too. Does anyone know why this happens? Is there a fix or a work around? I believe it appears as an HID device, is there a way of re-enumerating it before trying to connect again?