NTAG5 with PNEV7462C Board using NFC Cockpit

[amighri]

NTAG 5 Communication with PNEV7462C Board Using NFC Cockpit

I just started using PNEV7462C to read and write in NTAG5 Registers. In my first example i wanted to configure the GPIO_0 and GPIO_1 as Inputs. and As i read the Register A0 i expected that both GPIOs change the status. 

 The commands i used in Tx data without flags are as followed : 

C1A10022AF00 --> GPIO_Mode / plain Input 

C1A30C000000 --> GPIO_0 and GPIO_1 as Input

C0A00 -->  when i connect the GPIOs to Vcc (5v in this case i used a breadboard and some jumpers for this set up) the card response i get is : 03C80000 but I'm expecting 03D80000 ( GPIO1_IN_STATUS bit didn't change ) i tried many configurations like disabling the recievers , and use just the GPIO_1 as Input but the GPIO1_IN_STATUS bit in register A0 still don't change at all though I'm connecting it to Vcc. 

Can someone help me with this problem. 

Thank you in Advance. 

[Fabian_R]

Hello,

I've checked this configuration using NTAG 5 NFC Cockpit GUI without any issues.

Please check the User Manual for NTAG 5 NFC Cockpit.

You will need to connect the PN7462 with the Cockpit firmware, and when opening the NTAG 5 Cockpit, you need to have both boards connected by USB and both antennas connected. Then the NTAG 5 Cockpit should open the configuration panel as shown in section 4; NTAG 5 NFC Cockpit GUI.

In the log panel you should see the next log, after a proper configuration:

> Writing configuration register PWMGPIO0:
NFC >> 22 C0 04 00 00 00 00 00 00 00 E0 39 00 
NFC << 00 0C 00 00 00 
Read configuration block 39h = 0C 00 00 00 
NFC >> 22 C1 04 00 00 00 00 00 00 00 E0 39 00 04 00 00 00 
NFC << 00 
Write configuration block 39h = 04 00 00 00 

After the configuration, you should be able to read the NTAG 5 with the PN7462 in the same NTAG 5 NFC Cockpit GUI and should get the next response at the log window.

> Reading configuration register PWMGPIO0:
NFC >> 22 C0 04 00 00 00 00 00 00 00 E0 39 00 
NFC << 00 04 00 00 00 
Read configuration block 39h = 04 00 00 00 

With this, you will have your GPIO0 configuration.

Please notice the next table for a better understanding of the frame sent:

22	Flag
C0	Read Config
04	Manuf ID
00	UID
00	UID
00	UID
00	UID
00	UID
00	UID
00	UID
E0	UID
39	PWM_GPIO_ CONFIG_0
00

I strongly recommend you that perform the configuration this way, before creating a full application using the PN7462

I hope this information may have been useful

[amighri]

Dear @Fabian_R 

Thank you very much for your detailedanswers it helped me a lot configuring the GPIOs. Just another question should be the NTAG5 power supplied in this case ? 

Thanks in advance.

Greetings,

[Fabian_R]

Hello!!

Yes, it should.