I2C MSTA bit on i.MX6Q

[kzkzkz]

Hello,

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?

Thanks,

D

[igorpadykov]

Hi Daniel

for security application it may be useful to check sect.3.2.1 Peripheral access policy

i.MX6DQ Security Reference Manual on link

https://community.nxp.com/docs/DOC-97660 

Best regards
igor
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