FDC2214EVM: I2C communication problem

jinyang wang

Part Number: FDC2214EVM
Other Parts Discussed in Thread: FDC2214

I Can use K60(cortex M core MCU) to communicate with FDC2214 ，but I can't use STC8A(8051 core MCU with built-in IIC interface) to do that.

STC8(the FDC2214 hasn't ACKed and sent nothing）

K60:(the FDC2214 has ACKed and sent a correct High bit of its ID）

over 6 years ago

0 Kristin Jones93 over 6 years ago

TI__Genius 17440 points

Hi Jinyang,

Sometimes we've seen that certain MCUs are unable to use one of the two I2C addresses available for the FDC2214. I would try changing the I2C address to see if that helps. If that doesn't help, I would make sure that your software is set up correctly for the built-in I2C interface.

Regards,

0 jinyang wang over 6 years ago in reply to Kristin Jones93

Prodigy 20 points

Thanks a lot,I have solved it by using software simulation IIC

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FDC2214EVM: I2C communication problem