IWR6843ISK-ODS: Understanding the firmware

no thank u

Part Number: IWR6843ISK-ODS
Other Parts Discussed in Thread: IWR6843, , IWR6843ISK

Hello everyone,

im am currently working on a IWR6843 ISK board and have a question concerning the firmware.

My motivation is that we designed our own board with a different antenna design and i want to understand how the ODS Antenna design signal processing differs form the normal ISK.

If i understood correctly, the IWR6843ISK-ODS board is similar to the IWR6843ISK board, but has a different antenna design and requires a BOOST board to flash. Now for the Out of the Box demo, i can access the sources for both boards via the CCS Ressource Explorer. The ISK board has a firmware for the DSP and for the Microcontroller inside the chip, whereas the ISK-ODS board hast a different structure and only one source folder.

Is the ISK-ODS Out of the Box software so different or does it take the MCU software from the ISK without changes?

Thanks so much!

over 3 years ago

0 no thank u over 3 years ago

Prodigy 85 points

Another thing is, the main.c calls the same functions as the mss_main.c except the MmwDemo_DPC_ObjectDetection_dpmTask which is called by the dss_main.c on the "normal" isk board

0 Santosh Krishnan over 3 years ago in reply to no thank u

TI__Mastermind 19150 points

Hello.

The main difference between the ODS and ISK firmware is that the ODS was chosen to operate with the DSP(DSS) unit. If you a diff of the two projects, you can identify this main difference. However, the ODS firmware can be loaded onto the ISK and vice versa; this was simply a design decision to have one board operate without the DSP and one with.

Hope this helps.

Santosh

0 no thank u over 3 years ago in reply to Santosh Krishnan

Prodigy 85 points

If I understand you correctly you are saying (in this case not literally :D ) that the ODS firmware operates without the DSP and the ISK does use it? Is there any documentation about the decision and what other features are enabled or disabled for the two versions?

+1 Santosh Krishnan over 3 years ago in reply to no thank u

TI__Mastermind 19150 points

Just want to reemphasize that even though it is designated as ODS and ISK firmware, both can be used for either board; it was just released to that specific board as we wanted one to use the DSP and one to not use it, so the choice was arbitrary. In terms of documentation, you can look at the OOB documentation for the 6443 and the 6843 and note any differences; the 6443 is for without DSP, and 6843 is for with DSP. However, there is no outright documentation detailing the differences.

0 no thank u over 3 years ago in reply to Santosh Krishnan

Prodigy 85 points

Thank you, I will have a look into it. I was just confused because you said that the IWR6843 ISK operates without the DSP, but you clarified that.

0 Santosh Krishnan over 3 years ago in reply to no thank u

TI__Mastermind 19150 points

Yes my apologies I realized I wrote that wrong thank you for pointing that out.

0 no thank u over 3 years ago in reply to Santosh Krishnan

Prodigy 85 points

No problem, I already assumed it but maybe the next person would be confused. Thanks for the quick replies

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IWR6843ISK-ODS: Understanding the firmware