NXP Semiconductors AN12550, Быстрый старт

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NXP Semiconductors
AN12550
PNEV5190B evaluation board quick start guide
This allows an easy and quick optimization of TX and RX parameters before changing
the EERPOM.
1. <Load Protocol> (e.g. type A 106)
2. <Single REQA> (using again the EEPROM settings)
5.2.1 PN5190 register access
The PN5190 NFC Cockpit allows the reading and writing of all the PN5190 registers (see
Figure 22 ).
Selecting a register reads and shows the hexadecimal content as well as the
corresponding bit values. The input allows changing each bit separately as well as writing
hexadecimal values. Writing back the value changes the PN5190 register.
A help function automatically shows a short description of the (part of the) registers itself,
if the mouse is moved over the names.
Note:
Some register content cannot be changed manually (“read only”) and some content might
be overwritten by the PN5190 firmware.
1. Register area is a RAM area, i.e. might be overwritten or changed automatically.
Figure 22. PN5190 register access
All registers, which are used in the LOAD_RF_CONFIG command, can be read from the
EEPROM. The user must select the register and the protocol.
All registers, which are used in the LOAD_RF_CONFIG command, can be written into
the EEPROM. The user must select the register and the protocol.
This allows an easy EEPROM update of the relevant TX and RX registers after
optimization in RAM.
5.2.2 PN5190 direct EEPROM access
The NFC Cockpit allows 4 options of EEPROM access (see Figure 23 ):
AN12550 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved.
Application note Rev. 1.5 — 23 April 2021
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