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I2C MSTA bit on i.MX6Q

Question asked by Daniel Kim on Aug 8, 2017
Latest reply on Aug 8, 2017 by igorpadykov



I'm testing the I2C driver in the Secure World on i.MX6Q using the i.MX6 platform SDK. However, I2C_I2CR MSTA bit cannot be set. According to the i.MX6 reference manual, "The module clock should be on for writing to the MSTA bit."

I looked into the module clock which is "ipg_clk_patref", and checked the value of CCGR2. It looks fine, but the I2C driver is not working. 

Did I miss something? What part should I check?