TMDSEMU110-U: customer report issue trying to use emulator to program the device flash

Hello,

Joe Ji said:

but see the issue reported sometimes

Sounds like this is a sporadic issue that happens only occasionally?

As for the first issue (-1156), it means he device is in low power run mode. Depending on the severity of the condition, the JTAG debugger may or may not be able to bring it out of this mode. What happens when "Yes" is pressed?

As for the second issue, The error below typically happens if the debugger is not detecting power. If the PC needs to be restarted to resolve it, then that would indicate that it is not specifically a hardware issue. Is this also a occasional issue?

Thanks

ki

Hi Ki

Ki said:

What happens when "Yes" is pressed?

After clicking yes, the GUI will stuck here for a long time (half hour).

Ki said:

As for the second issue

it is an occasional issue, but happens many times with different PCs in customer side.

thanks

Joe

Hi Ki

I let them to ship back some emulators before and I saw the 5V input capacitor is short circuit and 5V to 3.3V DCDC is broken. So I doubt that might be the USB power supply is not stable with customer computer, and suggest then to use the isolated power supply like ISO-USB to power up the emulator, but they didn't take my suggestion. Now seems the same issue happens. I will push them to debug the PC HW but not our emulators.

I will close this thread. thanks for your support.

Best regards

Joe

Ok, thank you for the update!

Hi Ki

I debug in customer today, I find the Pin5 is 3.3V when I measure the voltage of XDS110 input pin

But when I use test connection function with ccs the below issue is still reported by ccs:

I do not have the TMDSEMU110-U schematic, so I cannot measure the TM4C MCU pins to see whether the MCU input is correct.

But I checked the F28P55 power supply is LM63635 and schematic looks find.

Could you please share the XDS110 Pin5 related schematic so that I can bug further?

Thanks

joe

Part Number: TMDSEMU110-U

Tool/software:

Hi Expert 

It is the continue question of this E2E thread: link, 

I debugged the emulator in customer, I found the Pin5 is 3.3V when I measure the voltage of XDS110 input pin

But when I used test connection function with ccs the below issue was still reported by ccs:

I did not have the TMDSEMU110-U schematic, so I could not measure the TM4C MCU pins to see whether the MCU input was correct.

But I checked the F28P55 power supply is LM63635 and schematic looks find.

Could you please share the XDS110 Pin5 related schematic so that I can bug further?

Thanks

joe

Hello,

Please allow me another day to retrieve the requested schematic. 

Is this issue isolated to one debugger, or has this happened on multiple probes?

Best,

Matt

Hi Matt

Thanks for your support, this issue happened in multiple debug probes, including onboard XDS110 of MSPM0, onboard XDS110 of F28P55 (total 8 pcs), but first happen in TMDSEMU110-U since customer only has one TMDSEMU110-U for now.

Best regards

Joe

Hello,

I'll will share the schematic with you offline. 

Joe Ji said:

I let them to ship back some emulators before and I saw the 5V input capacitor is short circuit and 5V to 3.3V DCDC is broken. So I doubt that might be the USB power supply is not stable with customer computer, and suggest then to use the isolated power supply like ISO-USB to power up the emulator, but they didn't take my suggestion.

Has the customer tried this? Since the issue has been repeated across different probes, it may be worth evaluating this option.

Best,

Matt

Hi Matt 

We did this but they did not feedback to me whether the PC USB port has any issue, but for now TMDSEMU110-U issue is that the emulator cannot detect the Pin5 3.3V signal which is the PCBA power, so it is not the issue of PC USB connection.

I shared the schematic to customer HW RD will see what issue happened on this probe.

Thanks

Joe

Hi Joe,

That's interesting, please keep this thread updated of any progression. Can you share the customer's target configuration file ccxml with me? 

Best,

Matt

Hi Joe,

Can you also please ask the customer when they purchased the XDS110 and the serial number?

Best,

Matt

Hi Matt

Will do that today.

Hi Joe,

Thank you for checking for me, we're investigating if this could be a widespread issue.

Best,

Matt

Hi Matt

The Serial # 8252002054, but RD cannot get the accurate purchasing time, it should be in JUN/ JUL.

Thanks

Joe 

Hi Joe,

Thank you for the additional details, that helps a lot.

Can you also share the customer's ccxml file with me?

Best,

Matt

Hi Matt

Please see the ccxml file attached:https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/908/TMS320F28P559SJ9_2D00_Q1.ccxml

Thanks

Joe

Hi Joe,

Thank you, I will take a look into this and test on my local setup.

Best,

Matt

Hi Matt 

Do you have the plan on this? When can I expect the next discussion.

Thanks

Joe

Hello,

I was able to use the customer's target config without issues. My colleague is OoO this week and will discuss the issue further once they return.

Best,

Matt