TI中文支持网Part Number:CDCE6214
Hello, please take a few minutes to help me answer:
Cdce6214 uses figure 35 on Page 38 of the data manual The typical application schematic diagram of I2C interface is used for IIC communication. When the device address 0x68 is sent to the device through IIC, the response from the device is not received, and the communication is not successful. What is the reason?
If I want to use this figure 35 The typical application of I2C interface is based on the principle of schematic diagram. How to operate it?
Does cdce6214 have a successful routine or hardware design of IIC communication in C language? Can it be used for my reference
Amy Luo：
您好，
这里是TI E2E中文论坛，您可以使用中文发帖。
建议先从Fall-Back Mode 开始，即将 Pin4 和 Pin23 浮空，进入Fall-Back Mode来使用I2C配置寄存器。pin4 REFSEL 悬空、接高电平还是接低电平，可以通过寄存器REFSEL_SW控制。HW_SW_CTRL pin 内部具有上拉和下拉电阻，默认是由内部分压电阻自动施加的中间电压电平，中间电压用于选择启用串行接口的内部默认值。
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Amy Luo：
当HW_SW_SEL为低电平时，默认加载的EEPROM Page 0 的值，设备配置在Pin Mode，无法使用I2C通信。
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peng xueliang：
非常感谢您的解答，我会依照您的方法进行驱动配置！
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Amy Luo：
好的，我先把帖子关了，如有疑问您可以发新帖
