TMS320F2812: TMDSEMU110-U

Hi,

Abhijit Kelkar said:

Can some expert let me know if 

TMDSEMU110-U JTAG 

can work for TMS320F2812?

It should work for this device.

The Test Connection error code that you posted implies that there is some problem with the Target Device. Is it possible that your target board has been damaged? 

Can you try running the same test on a board that you have previously been able to connect to successfully?

Best Regards,

Ben Collier

Hi.. Benjamin,

thanks for reply. I could not answer immediately.

In particular Part no. details under supporting device tag TMS320F2812 is not mentioned. 

Secondly about two JTAG , it seems that one is having problem of loose connection. I am checking with cable & connectors . Second one may be damaged as when connected, it shows 0V at the Pin 5. It is shorting the 3.3V supply.

I have multiple board being manufacturer, so it is not issue with the Board but with JTAG. I programmed the same board with my Spectrum Digital JTAG 

I feel TI should work on Blackhawk issue.  

thanks & Regards

Abhijit Kelkar

Hi,

Are you able to share the schematic for the JTAG header on the board? Maybe there is some difference in the pinout from the two debug probes.

Which header adapter board are you using with the XDS110? 

I would be very surprised if the root cause of this issue is the XDS110 simply malfunctioning.

Best Regards,

Ben Collier

Hi.. Benjamin,

I can very well share JTAG but the fact is ,

1. My particular Board Design is in service from 2006. It is used for our CNC machine, which we manufacture & around 700 such machines are working in market. 

2. I have been using different versions of Spectrum Digital (SD) JTAG for the same BOard for last 15-16 years. In between, only once I used Blakhawk JTAG & it was also damaged with in 1 year for unknown reason. On contrary SD JTAG were operational for 3-5 years minimum under same working conditions.

3. After COVID long pause, I came to know that SD is no more available & I have to go with Blackhawk, I purchased USB200 JTAG from TI web site. Which damaged with in first 10-15 day.

4. TI experts checked my JTAG design, how I use it & we had very long communication. Finally they concluded that it was manufacturing issue &  they sent me replacement after around 4-5 months. Meanwhile when I checked TI E2E for Blackhawk issue there are such posts about their Blackhawk JTAG problems as well as no response from Blackhawk.  

5. I have also reported that when I use Blackhawk JTAG with my working machine for some experimentation, I found issue of Error 1156. You can go through our communication using below link.

TMDSEMU200-U: burning of U7 IC - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

6. After lot of experimentation we found that SD JTAG used to come with Black color Ferrite rapper on FRC cable for Noise protection & Blackhawk is not providing that. When we started using similar rapper with  Blackhawk, it was working OK    

7. I feel that such simple cost cutting measures creates such problem, which TI should address.

8. Particular issue is not with XDS 110 but it is with USB200 type JTAG

thanks 

Abhijit Kelkar

Hi,

I can share your concerns, thank you for your feedback. 

Abhijit Kelkar said:

. Particular issue is not with XDS 110 but it is with USB200 type JTAG

I reread your post and see that now. Do you plan to get XDS110? 

Best Regards,

Ben Collier

Hi.. 

We are in process of Board development for F28P650 processor & on F28P650 Webpage it is yet not clear which JTAG can handle particular processor. So I need to decide based on that.

Thanks 

Abhijit Kelkar