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ctee · 2024-11-14

Hi, May I know the available test points on STEVAL-D25R16B for me to connect S11 of NANOVNA to ? Also, which of the register values (space a and b registers) are essential to set the board to high impedance (VNA mode) before connecting the nanovna t...

ctee · 2024-06-17

Hello,Can we copy ST demo software(middleware) if we use ST25R3916 chip but not not using ST MCU?Lets say I am using PIC microcontroller to talk to ST25R3916. Can I copy Auto Antenna Tuning algorithm provided in st24r3916_aat.c/.h?Thanks! BR,Cindy

ctee · 2024-03-07

Hello, I have a question on the value of nfc_n<1:0> of the Auxiliary definition register.The following tables talk about the field value, could you please explain further what is the meaningof the value 512 in Table 14?Is my interpretation as shown b...

ctee · 2024-02-06

Hello,The ST25R3916 Discovery GUI has an option for user to set a target amplitude in mV.Question 1What are the important criteria when choosing a target amplitude for the AAT?Question 2Is the lower the target amplitude the better or the higher the t...

ctee · 2024-02-06

Hi,I am new to NFC therefore using the kit as a starting point. I learnt that we can use the following tools to design the antenna:-https://eds.st.com/antenna/#/ Question 1If I am using the tool (https://eds.st.com/antenna/#/) to help design the ant...

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Are there any test points on STEVAL-D25R16B for me to connect S11 of NANOVNA to?

Can we copy ST demo software(middleware) if we use ST25R3916 chip but not not using ST MCU?

ST25R3916 - Auxiliary definition register - nfc_n<1:0>, value = 512, unit: /fc?

STEVAL-25R3916B - What is the best Target Amplitude for Automatic Antenna Tuning (AAT)?

STEVAL-25R3916B 66 x 66 mm 2 turns antenna data