Hai,
I am Working with the PCF2131is interfaced with the LPC54608 FC-7,
while Configuring the RTC it is going to slave not ACK state in I2C Bus Communication
Thank You,
B Pavan Kumar
Hi,
First of all, please double check that the IFS pin is connected to VDD:
Then please make sure that the 7-bit slave address (1010011) is placed in the upper 7 bits of the byte and the write/read bit is in the LSB. This means 0xA6 for a write and 0xA7 for a read. Best is to check it using a logic analyzer or an oscilloscope.
Best regards,
Tomas
Hi,
First of all, please double check that the IFS pin is connected to VDD:
Then please make sure that the 7-bit slave address (1010011) is placed in the upper 7 bits of the byte and the write/read bit is in the LSB. This means 0xA6 for a write and 0xA7 for a read. Best is to check it using a logic analyzer or an oscilloscope.
Best regards,
Tomas
