NTAG5 Boost + FRDM-K64F

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NTAG5 Boost + FRDM-K64F

Contributor III

Hello nxp-community,

I trying out the NTAG5 Boost Dev-Board with the FRDM-K64F.

The Commands I use come from the App "NTAG5 - use cases"  I2C Master mode examples.

The FRDM-K64F Board has the same FXOS8700CQ accelerometer and magnetometer like the FRDM-KW41Z

Only difference between these boards is the I2C default slave address.

I am sending the same "get Temperature" command as the example App does, just the Slave Address changed.

But I am getting the wrong response.

Here are my commands to the NTAG5 Boost Dev. Board via NFC:

Select mode:

0x20, 0x25, 0x00, 0x02, 0x3D, 0xF9, 0x58, 0x01, 0x04, 0xE0

activate I2CMaster mode:

0x12, 0xC1, 0x04, 0x37, 0x00, 0x12, 0x0F, 0x00


0x12, 0xD4, 0x04, 0x82, 0x00, 0x51

Response: 0


0x12, 0xD5, 0x04, 0x02, 0x00

Response: 0

Read SRAM Command:

0x12, 0xD2, 0x04, 0x00, 0x06

Response in Hex:

The Response from the SRAM is the same value as the writeCommand data (51).

What am I overlooking?

best regards


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1 Reply

NXP TechSupport
NXP TechSupport

Hi Julian,

Referring to the schematics of FRDM-K64F, the I2C address is 0x1D, did you set up this address correctly in your commands?


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