IWR6843ISK: Part stopped flashing

Hi Mustafa,

Please follow these steps while flashing an image to the mmwave sensor.

1. Please make sure that you have set the right SOP jumper (SOP0 and SOP2) on EVM in order to put the device in flashing mode. Do the power cycle after putting the jumpers then start using Uniflash.
2. Make sure the COM port number is correct in the Uniflash ‘Settings & utilities’ TAB. This COM port should be the number which is populated as a “XDS110 Class Application/User UART”.
3. Disconnect and connect the USB cable if Uniflash is not able to access the COM port.
4. Check the power supply if it is according to the spec. (5V ~3A)
5. If Uniflash was crashed or closed forcefully in the last session then try to close these processes from TaskManager – “DSLite.exe” and “Python**” and restart the Uniflash GUI. 
6. Try a different PC to use the Uniflash. (if above doesn’t resolve the issue)

On top of that, please refer these threads discussing the similar issue

https://e2e.ti.com/support/sensors/f/1023/t/690363

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/740576

https://e2e.ti.com/support/sensors/f/1023/t/824004

Regards,

Jitendra

I went through these posts and follow some of the suggested steps. I turned off both my wired and wireless connections, make sure I have a higher version than 4.5 for uniflash, enabled the log file, made sure no DSLite or python tasks are running and tried a different PC but I am still getting the same error message. Attached is the log file. Please keep in mind that I have another similar hardware that is working just fine but this one is not anymore. Thanks!

06:03:04:783 log - NWAgentAPI: dinfraConfigue resolved successfully.
06:03:05:369 error - {}
06:03:05:414 error - {}
06:03:05:443 error - {}
06:03:05:459 error - {}
06:03:05:522 error - {}
06:03:05:549 error - {}
06:03:05:613 error - {}
06:03:05:616 error - {}
06:03:05:639 error - {}
06:03:05:645 error - {}
06:03:05:660 error - {}
06:03:05:668 error - {}
06:03:07:730 error - {}
06:03:07:785 error - {}
06:03:07:791 error - {}
06:03:07:815 error - {}
06:03:07:826 error - {}
06:03:08:093 error - {}
06:03:08:095 error - {}
06:03:08:280 error - {}
06:03:09:304 error - {}
06:03:15:890 error - {}
06:03:15:910 error - {}
06:03:15:930 error - {}
06:03:16:000 error - {}
06:03:16:029 error - {}
06:03:16:058 error - {}
06:03:16:135 error - {}
06:03:16:180 error - {}
06:03:16:237 error - {}
06:03:16:284 error - {}
06:03:16:331 error - {}
06:03:16:406 error - {}
06:03:16:435 error - {}
06:03:18:799 error - {}
06:03:18:824 error - {}
06:03:18:845 error - {}
06:03:18:860 error - {}
06:03:18:994 error - {}
06:03:19:021 error - {}
06:03:19:281 error - {}
06:03:19:308 error - {}
06:03:20:272 error - {}
06:03:20:298 error - {}
06:03:20:326 error - {}
06:03:20:374 error - {}
06:03:20:506 error - {}
06:03:21:879 error - {}
06:03:21:904 error - {}
06:03:22:898 error - {}
06:03:23:092 error - {}
06:03:23:193 error - {}
06:03:23:212 error - {}
06:03:23:214 error - {}
06:03:23:398 error - {}
06:03:23:400 error - {}
06:03:24:927 error - {}
06:03:26:600 debug - Target Configuration. Device: iwr6843, Connection: Serial_Connection, LP: false
06:03:27:140 debug - ufDS, session.configured, partnum of current session = iwr6843
06:03:27:289 debug - addTargetStateListener on Cortex_R4_0
06:03:41:860 debug - returning new configure
06:03:44:697 debug - configured
06:03:46:373 debug - connect to core Cortex_R4_0
06:04:07:222 error - Image loading failed: Not able to connect to serial port. Recheck COM port selected and/or permissions.

Hi Mustafa,

Could you please post the picture of the board.

    After configuration of SOP jumper (SOP0 and SOP2) It is important to hit the reset button, This would register Flash programming boot mode to the device. 

If the NRESET button is not pressed, device may not enter the flash programming boot mode. 

Also please ensure other applications such as mmWave studio or such application is not using the XDS110 COM port during this process.

Thanks and regards,

CHETHAN KUMAR Y.B.

Hello Chethan,

Attached is the requested picture and yes I am hitting the reset button as instructed. Please keep in mind that I have another two hardware are working just fine following my usual process and using the same laptop.

Hi,

Can you try with a different IWR6843ISK? Also why does the EVM look that way, what was done that caused that much degradation on the board?

Regards,

Charles O

I did try another ISK and still not functional. I am not sure why there is that much degradation. I was assuming that those copper traces were not covered by any protective layer so they are oxidating. The board has been on my bunch with normal indoor conditions.

Hi,

is the problem tracking the MMWAVEICBOOST or the ISK?

Regards,

Charles O

Interestingly both. If I plug the isk board to a known good boost board, it won't work. Same if I plug in a known good isk board to the malfunctioning boost board. Whatever the cause is, it seems to have affected both boards.

Are we at a point where I should send you both boards for debugging? I am not sure what else can be done from my end.