CCS/TMS320F28377D: Issue with loading program on to CPU2

Hello,
Are you trying to load an example from controlSUITE/C2000Ware or is this a custom program? If it is the former, please let me know which example. If it is the latter, can you provide a test case?

Thanks
ki

Hi,

I am trying to load a custom program, but I also tried the example blinky_dc from the controlSUITE. I had the same error with both of them.

Best Regards,
Sai

You are getting a verification error at 0x8000. That is RAM. But you mentioned that the issue occurs when programming Flash.

I tried the blinky_dc example with CCSv7.4.0. There were no issues loading/flashing.

Can you tell me step by step what you did to reproduce the issue with the blinky_dc example? 

Thanks

ki

I also didn't had any issue running the blinky_dc example earlier. But now it is throwing the data verification error. The timeline of the events is as follows.

Till yesterday afternoon everything is fine. I am running my custom program on both the CPUs and they were working fine. I made some changes to the CPU2 code and tried to reprogram the RAM. The flash was successful, but I didn't see any change in the code. (I tried it 2-3 times and since there was no change, I purposefully modified a return statement from a meaningful value to 0. It continued to return the meaningful value instead of 0). So, I changed the project configuration from CPU2_RAM to CPU2_FLASH. I built the project and entered the debug mode. It threw a bunch of errors (something like CPU1 is not defined and so on) and the load failed. I changed the project configuration back to RAM and again rebuilt the program. Now, I opened the UniFlash and selected the option "Erase Flash" in Settings and Utilities section of CPU2. Then I tried to load the .out file through UniFLash and it threw the data verification error. I tried it with CSS, but I had the same error again.


Later, I imported the blinky_dc example into my workspace and ran the Code Composer Debug Session. But, it also had the same error while loading the .out file.

For CPU2, if you open the Memory Browser view and specify to view Program Memory at 0x8000, Are you able to edit the contents of memory?

Sai Madem83 said:

Though it is allowing me to edit it, the new data is not being saved.

This is usually a sign that either the target memory is not initialized correctly or there is some HW issue. Please make sure any necessary initialization of the device is being done properly

Thanks

ki

I am using the same code to program another micro-controller and I am not facing any issue there. I am getting this error only on one of the controllers. Do we have some option to factory reset it? or do I have to replace the micro-controller?

Best Regards,
Sai

I'm not sure. I can connect to my F28377D controlCard and access address 0x8000 without issue - with or without a startup GEL file. It could be some configuration or HW issue with that particular target you have. It may be a HW issue with the device. I will move this thread to the C2000 forum. The experts there may have more suggestion.

Thanks
ki

Sai,

Did you check whether device is locked?

Regards,
Manoj

Can you let me know how to check that.

Best Regards,
Sai

You need to check if Z1_CR.UNSECURE = 0 (or) Z2_CR.UNSECURE = 0 in DCSM registers?

Regarwds,
Manoj

This is what I found (Screenshot is attached). I am not sure what it means though.

Best Regards,

Sai

Sai,

With both Z1_CR and Z2_CR = 0x0070, it tells me that device is not secured. So, it is not the DCSM which is preventing RAM writes.

Regards,
Manoj

Hey Sai,

Checking up to see how things are going with your issue. Is the verification error still occurring when trying to program CPU2? Also are you still unable to program via the RAM like you were originally able to do?

Respectfully,

Yes, still facing the same issue. CPU1 is working fine though.

Best Regards,

Sai