SDA is pulled low on 9th clock pulse!(NTAG Tag NT3H1101 )

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SDA is pulled low on 9th clock pulse!(NTAG Tag NT3H1101 )

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tarikah
Contributor I

Hello Dears,

I am working on interfacing MSP430 with NT3H1101 with I2C. I could not read from the NTAG as the SDA is pulled low on 9th clock pulse. I found that it is related to clock stretching bit on register I2C_CLOCK_STR. my question is how can  disable the I2C clock stretching and i cannot access the NTAG because the 9th clock is pulled low?

what shpuld i do that i can communicate with the NTAG?

best regards,

tarik

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Kan_Li
NXP TechSupport
NXP TechSupport

You may access E9h via RF interface.

Hope that helps,


Have a great day,
Kan

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