TPL0102-100: Module communication issue

Thank you and look forward to your reply.

Thank you and look forward to your reply.

您好，

     是的，可以将两个数字电位器通道串联，以增加端到端的电阻。

     如果芯片没有ACK，请用示波器检查I2C时序。

The communication issue has been resolved. Regarding the control, I just need to control both the WA and WB registers simultaneously, right?

I set the values of both the WA and WB registers to 0. Theoretically, the resistance should be 0 ohms, but when we measured it with a multimeter, it was 19K ohms.Is there anything else that needs to be set up?

您好，     

tangjie tang 说：

it was 19K ohms

    理论上WA在LA位置（7.6.4 WRA），WB在LB位置（7.6.6 WRB），电阻为0.

     实测每个通道的RWL是多少？您回读确认寄存器正确吗？

    TPL0102 Two 256-Taps Digital Potentiometers With Non-Volatile Memory datasheet (Rev. C)

Thank you very much for your reply. All the issues have been resolved. It was caused by a problem with the IIC communication, where the WB register was written with abnormal data.