| I2C Test For Microchip board |
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| This application test is used to test the I2C driver on Microchip |
| mec172xevb_assy6906 board. |
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| Board Hardware Setup |
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| As the I2C slave device NXP pca95xx on mec172xevb_assy6906 is connected |
| to I2C00 port, however, I2C00 port is shared with UART2 RS232 to TTL |
| converter used to catch serial log, so it's not possible to use UART2 |
| and I2C00 port simultaneously. |
| We need to change to use I2C01 port by making some jumpers setting as below: |
| |
| * JP49 1-2 Connected Connect PCA9555 VCC to +3.3V_STBY |
| * JP53 1-2 Connected Select address 0100b, which means 0x26 |
| * JP12 13-14 Connected Connect I2C01_SDA from CPU to header J20 |
| * JP12 4-5 Connected Connect I2C01_SCL from CPU to header J20 |
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| * JP77 7-8 Connected External pull-up for I2C01_SDA |
| * JP77 9-10 Connected External pull-up for I2C01_SCL |
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| * JP58.1 J20.1 Connected Connect NXP PCA95xx to I2C01 |
| * JP58.3 J20.3 Connected Connect NXP PCA95xx to I2C01 |
