How to start with ST25R3911B and is It really necessary to use rfal and st25r3911 libraries for simpel project?

[DIvan.1]

Hello everybody!

In my company We decided to use ST brand for our "NFC projects". Anyway, now I have Nucleo board 32f070RB and x-nucleo-NFC05a1 with ST25R3911B chip.

For now We have a simple project, just to read and write to/from the Tag (some of the classical tags, probably ISO14443A).

Unfortunately, there is no official Excample for x-nucleo-05a1 and 32F070RB. For now I just established SPI communication with microcontroller and 25R3911B chip(basic read/ write into a register).

Now I need a help because I confused about 2 things and If It's possible to answer me:

+ What is the steps to Initialize ST25R3911B and start communicate with Tag (I read a datasheet but it's a bit confusing for me)?

+ Is it necessary to use rfal and/or st25r3911 libraries or at list which is really necessary?

All the best,

Domen

[DIvan.1]

I'm using IAR-arm 8.50.1

Now I got one more error:

Error[Pe020]: identifier "EXTI0_IRQn" is undefined C:\Users\Domen\Desktop\prilagoditevNFC\Drivers\BSP\Components\ST25R3911\st25r3911_interrupt.c 155 

I attached my project if you need

[Brian TIDAL]

Hi,

I've fixed the various issues

• demoCycle missing in main.c
• EXTI0_IRQn to be replaced by EXTI0_1_IRQn for STM32F0 series
• missing demo.c, etc. in Src

I've created 2 configurations:

• prilagoditevNFC for simple NFC tag detection
• prilagoditevNFCNDEF for NDEF demo

You can select the configuration in the Workspace window or Project/Edit configuration...

Both configuration are compiling.

Rgds

BT

[DIvan.1]

Thank you with all the help. The program was successfully installed and It's working.

I'm justd not sure about UART communication. Is there need to be done something extra? Because when I ran a program I also turn On the "putty" application, set the port and bound ratio, didn't get anything to a terminal.

All the best,

Domen

[Brian TIDAL]

Hi

in your ioc project, the baud rate is 38400. I would suggest to move to 115200.

Rgds

BT

[DIvan.1]

Hello guys!

Can you help me again :)

I port your example to my nucleo 32f070RB with cubeIDE successfully. The program is working and detect something but the problem is UART communication.

I'm using CoolTerm where set port to COM3 (I check, this is correct) and set bound rate 38400. I also check the code But have no idea what could go wrong.

In attachement I'm sending you my project.

Thank you for your time.

[Brian TIDAL]

Hi,

make sure to define USE_LOGGER in the Define symbols (-D) of the preprocessor. See project Properties then C/C++ build then Settings. Select the Tools Settings tab and add the define in the MCU GCC Compiler/Preprocessor define Symbols.

Rgds

BT

[DIvan.1]

Thank you very much! Now the serial communication is working perfect!

Do you have any idea why program stop working when I bring this tag or this close to NFC area. The program stop and show me this:

When I bring this yoursST25 stick tag close to NFC It's vorking good and the NFC-V led start blinking.

Have any idea?

Best,

Domen

[Ulysses HERNIOSUS]

Hi Domen,

most likely you are running into a limitation of STM32F0 HAL drivers not being able to handle un-aligned data. Please see:

https://community.st.com/s/question/0D50X00009q3eMwSAI/how-to-migrate-project-nfc5-v13-polling-from-stm43f401-to-stm32f072

A fix of the STM32F0 HAL drivers is being worked on but as I understand it will only appear in V1.11.1

Regards, Ulysses

[DIvan.1]

Thanks for sending me a link but sorry I don't know what did you mean with the post in the link.

1) Where to change "USE_FULL_ASSERT to 1"

2) and what do you mean with this code:

>> uint16_t temp;

 >> temp = hspi->Instance->DR;

 >> *((uint8_t *)pRxData) = temp & 0xff;

 >> *(((uint8_t *)pRxData)+1) = temp >> 8;

do I need to change it or what, because in my code I can't find this or at least similar code.

Sorry for not understanding you but I can't figure out.

Best,

Domen

[Ulysses HERNIOSUS]

Hi,

please search your code including HAL drivers! Your screenshot shows a function HAL_SPI_TransmitReceive(). The code needs to go into this function. I expect this function to be implemented in stm32f0xx_hal_spi.c.

For the assert, you typically find that in stm32f0xx_hal_conf_template.h

Regards, Ulysses