TPS65400EVM-678: Cant connect to TPS65400EVM with USB2ANY (incompatible device driver)

Hi thanks for answering.

My OS is Win7 enterprise with service pack 1.

I will try with another coumputer during the day

I have tried with another computer now. Still the same problem. The USB2ANY is found but the eval board is not and the incompatible FTDI device drivers message appears. The eval board is properly powered. When inserting the cable from USB2ANY the output voltages on the eval board are disabled. Could this be a clue?

Maybe you can take a try on a notebook.
thanks.

We only have laptops with windows7 enterprise at the company. How about the disabling of output voltages on the eval board when inserting the cable from usb2any? Perhaps there is a hardware fault?

Hi, Johan

The EN1~EN4 pin can be set to LOW by USB2ANY, so the ouput voltage could be disabled when inserting cable from usb2any, maybe you can check the EN1~EN4 pin voltage before and after inseting cable from usb2any.

I suspect the problem most likely comes from the FTDI driver incompatibility, what is the FTDI driver? My computer don't need to install it, so suggest change a computer with Win7 proffessional OS yesterday.

thanks.

   

This is the error message I get. 

Here is the driver installation.

The enable 1-4 pins are unaffected when inserting the cable. However the reset pin is held low by the usb2any. I monitored the pin with an oscilloscope. When I press rescan slaves from within PI-commander the pin is still held in reset. So I guess there is no way for PI-commander to detect the TPS65400 chip.

Hi, Johan

I am trying to contact TI GUI software group.

they will repy you later.

BR,

zhao  

Hi, Johan

sorry, by now, i haven't found the GUI engineer.

the below is my screenshot after install GUI.

i didn't encounter the incompatible device driver issue.

Hi, Johan

You said the reset pin is RST_N pin, right?
The RST_N pin is LOW effective, so this can expain why the buck converter is turn off.

Do you have any progress ?

Hi

I brought my personal laptop to work today. It has windows 10. There were no wornings from uncompatible device drivers on win10.
But the reset pin is still held low and thus the eval board is not found. So I guess this is not a driver issue after all.
I believe the usb2any might be bad

Hi

I opened up the USB2ANY and found an I2C DAC that controls the reset pin. I measured with an oscilloscope and when pressing "rescan slaves" from within PI-commander nothing happened on the I2C bus. The clk and data pins are just pulled up high. So either the firmware or drivers for the USB2ANY are wrong or there is hardware fault inside the USB2ANY. 

in page 8 of TPS65400 user guide, see below:

maybe not support Win10.

That does not make sense. Why are the evaluation kit shipped with the USB2ANY then? There is a 30 pin header on the eval board as well as on the USAB2ANY. The USB2GPIO has a 10 pin header and wont even fit on the eval board without breaking of some unused pins on the eval-board header.

However I broke those pins of so I could insert a 10 pin cable (also included with the eval board). That leaves only the I2C-bus and the enable 1-4 signals connected. But that still didn't work. Measured with an oscilloscope and the I2C clk and data pins are pulled up with no activitity on them at all when pressing "rescan slaves" from within PI-commander.

By now we have started looking on other chips from Linear and Analog devices. It's a pity since these products will ship in great volumes and there will possibly be two chips in each product. I suggest you lift this issue to someone with more insight in the TPS65400 eval board.

I don't mean to be rude. But we are on a tight time-budget and this has taken to long already.

/ Johan

Hi, Johan

Very sorry.

I have asked for help several days ago, i will ask again.

BR,

zhao  

Hi, Johan

There is general software: USB2ANY explorer installer, please take a try this software, the link as below:

http://www.ti.com/tool/ipg-ui?keyMatch=usb2any explorer&tisearch=Search-EN-Everything

Could we use E-mail to dicuss this problem? then I can CC to more person.

My E-mail is: zhao-ma@ti.com

BTW, could you try another USB2ANY? or could you contact the TI local FAE?

Thanks.