RT1052 SDK2.11.1 LPI2C SCL low time do not meet I2C specification

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RT1052 SDK2.11.1 LPI2C SCL low time do not meet I2C specification

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dasg
Contributor I

I use the SDK_2_11_1_MIMXRT1052xxxxB\devices\MIMXRT1052\drivers\fsl_lpi2c.h LPI2C_MasterInit() to configure i2c controller LPI2C4, the mastConfig use default config, only set baudRate_Hz to 400000, the sourceClock_Hz is 10000000.

After init, the register MMCR0 value is 0x050B090C, CLKLO is 0xC, the CLKLO min time is 1.2us. But, the I2C specification show that 400KHz baudRate, CLKLO min need 1.3us. Please check and fix the issue.

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jay_heng
NXP Employee
NXP Employee

Will report this issue to SDK team.