TMS320F28335: 28335 control card status

Satwant,

Have you tried to directly connect to the device using CCS? Try to connect to the device, and load simple example code (like the blinky example).

If you are unable to even connect to the device, you will probably want to use a multimeter to check the supply voltages.

Thanks,
Mark

Sir 

I tried to connect the board using CCS studio but CCS is not recognizing now.

The error is_

Error connecting to the target:
(Error -151 @ 0x0)
One of the FTDI driver functions used during the connect
returned bad status or an error. The cause may be one or
more of: no XDS100 is plugged in, invalid XDS100 serial number,
blank XDS100 EEPROM, missing FTDI drivers, faulty USB cable.
Use the xds100serial command-line utility in the 'common/uscif'
folder to verify the XDS100 can be located.
(Emulation package 6.0.504.2)

Please suggest what i can do now.

Do i need to replace the control card(F28335)?

Thanks

Satwant,

Have you been able to resolve this issue? Did you measure the voltages on the board? Can you monitor the JTAG signals and XRSn of the device with an o-scope?

No, issue still persists. Actually only one led (board) is turns ON.  i don't know from which points i have to measure the voltage .

Is there any chances that board and control card are both safe.

Thanks

Satwant, 

Please inspect the schematic for the version of your board and find 5V, 3.3V, and 1.8V test points. Similarly for the docking station, find the 5V supply and inspect the voltage. I am not sure which revision of the controlCard and base station you have, so I cannot tell you exactly where to look.  If you share the version numbers, I can help you out a little more. These would be written on the silkscreen of the board.

Do you have access to another control card? If so, please attempt to connect to the device on your docking station. you might be able to narrow down which board might be having issues if you have a good one to compare against.

Satwant.

Please let me know if you have resolved your issue.

sir
actually we ordered a new kit (dsp TMS320F28335 experimental kit).
i am afraid of using old control card in the new docking station. may be this can demage our new docking station.
that's why i left this issue.
if something can be done within less time and less complexity, please let me know.
if u need more info let me know

Thanks

Satwant,

Were you able to inspect the board that was giving you issues? Like I said in my previous post, you can go through the board schematics and check that the proper voltages are present on the various supplies.

Did you receive your new kit? Does it work for you without problems?

Sir

After demage of our first experimental kit, we purchased new TMS320F28335. 

Again, now i got a problem with my new experimental board.

I turned OFF my new board in running condition few days ago, but today when i plugged it into my laptop ,it is not working.

Means, each time when i plug it into laptop,  LD1 on docking station and LD1 on control card glows for 4 times and then stops.

Can you help on this issue?

Now i have to conclude which part (control card/docking station) of my previous board and new board are not working.

let me know the info. that u need.

Thanks

Satwant,

It is very difficult to diagnose board issues over the forum. Any additional information which you can provide will be helpful. Was the setup relocated since it was powered last? If so, were proper ESD protocols followed to ensure safety?

The LD1 on both docking station and controlCard should stay lit always as they are are connected directly to power.
Are you able to connect to the device?
Does the device become hot to touch after some time? - could indicate device failure
If you use a bench power supply, do you observe elevated current consumption from the board?
Investigate the Power supply circuitry for any issues. Are there shorts? Damaged Components? - could indicate board failure

I suggest that you meticulously go over the board and schematics and look for any issues.

Thanks,
Mark

Sir , i regularly remove my device form the main setup location. After turning off the board, i remove connection and place it at safe position.
It was successfully powered last friday and today problem encountered on first trial. I do'nt know about ESD protocols (provide more info).

when i connect it to the laptop, there is pop showing in laptop screen that device is malfunctioning like that.
Both LD1s always glow for 4 times and then stops , does it mean something?
Even after removal of control card , docking states LD1 glows four times.

Also in my previous board , the LD1 on docking station stay glowing but LD1 on control card not glowing.
Should i check control card of new one on previous docking station.
Also tell about how to track power circuitry/board/schematic.
Thanks

Are you only powering the control card through the USB cable? Have you tried to power the board using the 5V supply instead?

I'm glad to hear that you have figured it out.

to answer your questions:
ESD = Electrostatic Discharge - en.wikipedia.org/.../Electrostatic_discharge

To investigate the power supply, you can apply a multimeter to check for shorts and voltages that might indicate that there is a problem somewhere in your circuit. You must analyze the circuit to determine what the expected value is that you are measuring.

As this post has been answered, please create a new post for any new and unrelated questions.

Thanks!
Mark