• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 61 subscribers
  • Views 449 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Incompatible FTDI device drivers

Nikko Li
Intellectual 490 points
Other Parts Discussed in Thread: TPS65400, USB2ANY

I'm trying to program two TPS65400 with USB2ANY adapter interface. The TPS65400 devices reside on a customized board, sharing the same PMBus. When I launch PI-Commander (0.8.5), there is a popup message saying " Incompatible FTDI device drivers have been detected. To resolve this issue, please exit the program and install compatible drivers which are bundled with this application. The driver installer is accessible from the "PI-Commander-0.8.5" system menu. Acknowledge" 

I did that and re-launch the program again, then the SW says no device detected. Can anyone tell me what the problem is? Thanks. --Nikko

  • 0
    TI__Prodigy 515 points

    Is TPS65400 on your board powered up?

    Is CE pin floating or pull high already?

    TPS65400 need power to response software communication. CE pin is chip enable which is to enable digital interface and internal volrage regulators.

    To communicate with this device need this two conditions. Suppose 2 device I2CADDR already conneted with different resistors.

  • 0 in reply to Daniel Jing
    Intellectual 490 points
    Hi Daniel,

    Yes, TPS65400 is powered up. VIN=12V. PVIN1/2/3/4=12V. CE is floating, it measures about 3.5V on the ocsilloscope. All three internal regulators are on, VDDA=VDDG=6.1~6.2V; VDDD=3.2V.

    I2CADDR is connected to 22k for one device (0x6A); 10k for the other (0x69).

    If CE is high and RST_n is low, does the digital interface work?

    Thanks
    Nikko