CC2652R: External storage drive limit with TI-RTOS

Ashwati Krishnan

Part Number: CC2652R
Other Parts Discussed in Thread: SYSCONFIG

Can the CC2652R support upto 4GB of external storage, and can the TI-RTOS file system handle this as well? I wasn't able to find the information in the datasheet. Is there a typical application block (with possibly other TI parts) for data acquisition and storage (~3-4GB) with the CC2652R that you can share to understand the interfacing better? Thanks!

over 3 years ago

0 Ryan Brown1 over 3 years ago

TI__Guru**** 202046 points

Hi Ashwati,

You can use the NVS TI Driver to control external flash. There are External NVS settings inside of SysConfig and several stacks (BLE, Zigbee, 15.4) include OAD examples which utilize external flash memory. These should be capable of uint64 values but I am not aware of any specific examples involving high storage capabilities.

Regards,
Ryan

0 Ashwati Krishnan over 3 years ago in reply to Ryan Brown1

Intellectual 520 points

Thanks Ryan! Is there a limit to the size of the flash drive that I can use with the driver?

0 Ryan Brown1 over 3 years ago in reply to Ashwati Krishnan

TI__Guru**** 202046 points

Once again, I'm not certain this has been tested or documented. As this driver is typically used for OAD the external flash does not usually exceed 1 MB.

Regards,
Ryan

0 Ashwati Krishnan over 3 years ago in reply to Ryan Brown1

Intellectual 520 points

Hello Ryan,

Thanks for the reply. I understand that you are talking about flash in terms storing firmware for OAD updates. What I am wondering about data storage in a situation where there is no wireless connection, I would like the ability to store larger data sets on an external SD-card on our board that will use the CC2652R. Does this SimpleLink module, being a 32bit device, does it have a 4GB restriction, or is it extendible past that limit?

0 Ryan Brown1 over 3 years ago in reply to Ashwati Krishnan

TI__Guru**** 202046 points

You may be able to develop a solution to extend beyond 4 GB but the default TI Driver will be limited to 32-bit.

Regards,
Ryan

0 Ashwati Krishnan over 3 years ago in reply to Ryan Brown1

Intellectual 520 points

Hello Ryan,

Thank you for all the information and links for development. It was helpful.

Ashwati

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CC2652R: External storage drive limit with TI-RTOS