PN7642
NXP Semiconductors
The PN7642 has three EEPROM locations accessible by the user.
Application NoteNxp
PN7642 EEPROM Configuration Handling Application Note
Guide for managing EEPROM settings in NXP PN7642 NFC controllers using NFC Cockpit and MCUXpresso SDK for development and production phases.
Overview
This application note provides detailed instructions for dumping, loading, and managing EEPROM configuration settings for the NXP PN7642 NFC controller family. While referred to as EEPROM, the configuration data is physically stored in flash memory and accessed via Hardware Abstraction Layer (HAL) APIs. The document covers two primary workflows: the development phase, which utilizes the NFC Cockpit GUI for manual configuration and antenna tuning, and the production phase, which uses the MCUXpresso SDK for automated chip programming. It defines the memory map for the 1024-byte User Area and 2048-byte Secure Lib configuration, and provides strategies for integrating EEPROM updates into user applications or dedicated production tools to ensure reliable configuration replication.
Use Cases
- Configuring NFC antenna and power supply settings during product development using NFC Cockpit.
- Replicating verified EEPROM configurations across PN7642 chips in a production environment.
- Implementing persistent storage for NFC controller settings via system service APIs.
- Managing RF and IC configuration parameters for the PN76 family of open controllers.
Topics
PN7642
NXP Semiconductors
NFC Controller
EEPROM Configuration
MCUXpresso SDK
NFC Cockpit
Flash Memory
HAL API
SECURE_LIB_CONFIG
AN13925
Referenced Parts
| PN7642 | NXP Semiconductors | The PN7642 has three EEPROM locations accessible by the user. |