解决方案
1) Set the I2C controller to EMIO pin.
2) Make the ports I2C0_SCL_T, I2C0_SDA_T, I2C0_SDA_T, I2C0_SCL_I, I2C0_SDA_I, I2C1_SDA_T, I2C1_SCL_I, I2C1_SDA_I external.
3) Connect these signals in the top HDL file as follows:
- assign processing_system7_0_I2C0_SCL_I_pin = processing_system7_0_I2C1_SCL_T_pin && processing_system7_0_I2C0_SCL_T_pin;
- assign processing_system7_0_I2C0_SDA_I_pin = processing_system7_0_I2C1_SDA_T_pin && processing_system7_0_I2C0_SDA_T_pin;
- assign processing_system7_0_I2C1_SCL_I_pin = processing_system7_0_I2C0_SCL_T_pin && processing_system7_0_I2C1_SCL_T_pin;
- assign processing_system7_0_I2C1_SDA_I_pin = processing_system7_0_I2C0_SDA_T_pin && processing_system7_0_I2C1_SDA_T_pin;