TMS320F280037: I can't use UniFlash to erase or program device

Hi Raphael,

In the first image, it shows unlocking the device was a success.  In the last image, there is the trouble when unlocking the device. Are the default passwords shown correct for unlocking the device, or were the passwords changed? As you said the devices are new, so the default passwords should work when trying to unlock.

Is this behavior consistent for all 5 samples?

As well, what UniFlash version is being used currently?

Thanks and regards,

Charles

Hi Charles, 

My UniFlash version is 9.2.0.5300.

Some samples could unlock but still can't program successfully. and some sample can't unlock..

Hi Raphael,

Could you check the gel file that is being used for this device? 

Thanks and regards,

Charles

Hi Charles,

I had check the gel file and the version is 1.00.00.00.

The GEL file should be located in the CCS folder. Will this affect my use of Uniflash for programming?

In addition, I used the same version of Uniflash and the same process to test another sample I have, the F280039CSPZ. It can be programmed, read, and erased normally, without the issues seen with the F280037SPZ.

Regards,

Raphael

Hi Raphael,

As a test, using the F280039C ccxml, can you try connecting through the UniFlash GUI and try an erase & program operation?

Thanks and regards,

Charles

Hi Charles,

I still can't erase this device.

I can program pass but verify fail.

Hi Raphael,

If the device is unable to be unlocked, there will still be an issue with the Erase operation. Does this occur with the unlocked samples?

Thanks,
Charles

Hi Charles,

I think it’s probably a chip issue. After I purchased 5 new pieces and tested them, they all worked fine. However, the part numbers on the good chips are the same as those on the faulty ones, so I’m not sure why the original chips were defective. Do you need me to provide the date codes?

Regards,Raphael

Hi Charles,
Our customer said they could use other programmer to program those device successfully.
May I ask if you have a recommended programming circuit for using SCI?

Hi Raphael,

Yes if you could provide date codes to me that would be good. 

Do you know what programmer they used to get successful programming? For a programmer using Serial Flash Support for our devices we recommend C-GANG programmer.

Thanks and regards,

Charles

Hi Charles,

I’ll provide the date code later. Currently, the customer is using another programmer, which is an Elnec programmer.

I am using an XDS100V3 with UniFlash, and then connecting it to my adaptor

Raphael

Hi Raphael,

Ok thanks.

Regards,

Charles

Hi Charles,

the fail device : $7  -45AZLOW
the pass device : $7 -45APJLW

Raphael

Hi Raphael,

Thanks, will note this to the team.

Regards,

Charles

Hi Charles,

I passed on the lot information of the working/non working batches to our production team and copied you.  Please follow up with them.

Regards,

Joseph  

Hi,

any update?

Raphael

Hi Raphael,

Looking to give an update on this by early next week.

Thanks and regards,

Charles

Hi Raphael,

Still waiting on some analysis from the team. Thanks for your patience on this issue.

Regards,

Charles

Hi Raphael,

Apologies for the delay with this issue. Question on tests, have you tried to program-verify through UniFlash using the TMS320F280039C .ccxml file, selecting the necessary sectors only for erase? 

What Orderable Part Number (OPN) are these devices based on? How/through which method were the samples acquired?

Additionally, are you able to try the program & erase operations in CCS? If so, what is the Flash Control register (FlashCtrlRegs) FMSTAT value?

Thanks and regards,

Charles