How can I use IIC module in imx257? Is there a detailed reference manual?

[zhangjun972845]

for example，How do I operate the register, when and other IIC module when communicating?

[igorpadykov]

Hi zhang

for i2c usage one can look at attached i.MX25 Linux Manual

Chapter 20 Inter-IC (I2C) Driver and use i2c tools

All Boards I2C-tools

Best regards

igor

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[zhangjun972845]

hi ,igorpadykov,  thanks for help ,but  another question, I will use the iic moudle as smbus with a RTC system. when i use the IIC driver for rtc(iic interface ) ,it is good, but the same drive  to battery(SMBUS interface), it can not send  Repeat start, I do not know why. so I may need you help. can you give me some PDF,or code to operate the IIC moudle ?