AnsweredAssumed Answered

MMPF0100NPEP cannot communicate I2C

Question asked by Tuong Nguyen Manh on May 13, 2014
Latest reply on Apr 12, 2015 by Eugene Volkov

Hi Community,


I need your help!


Recently I built a test board based on the KTPF0100SKUG, I try to program the MMPF0100NPEP by a generic I2C interface, in my custom board I use a LPC1769xpresso. But I am stucked in communication I2C with the chip! I tried the device addresses from 0x08 to 0x0F but still no ACK from the chip!? I have attached the schematic of the custom board and the picture captured from my oscilloscope, please help me!


In addition to, I wonder if the operation of the I2C interface of MMPF0100 depends on the voltage level of VDDOTP pin?


Thanks for your time,