RTOS/CC2650: CRC Calculate

Mihai

Intellectual 500 points

Part Number: CC2650

Tool/software: TI-RTOS

Hello!

I want to ask if CRC is implemented hardware in CC2650 LanuchPad??

If so, how could I acces it?

I found somewhere the polynom generator but I can't remember in which pdf. Could you tell me where please?

Thank you very much!

over 7 years ago

0 Siri over 7 years ago

TI__Guru* 86131 points

Please specify what CRC you are referring to? Is it the COMMAND_CRC32 bootlaoder, command, the CRC used for data transmitted over the air or something else?
The CRC use by the radio differs depending on what PHY you are using. If you are running PROP API with the genfsk PHY you use a 16-bit CRC with the polynomial x16 + x15 + x2 + 1 and initialization of all 1s.

Siri

0 Mihai over 7 years ago in reply to Siri

Intellectual 500 points

I am reffering to any CRC,16,32, if the board has it implemented hardware, or I have to implement it in software.

I want to use the CRC to calculate over an image stored in flash if it's ok it should jump to that image and execute.

0 Siri over 7 years ago in reply to Mihai

TI__Guru* 86131 points

There are only the CRC for data sent on the air and the Bootloader Command (COMMAND_CRC32). For your purpose I think you need to calculate the CRC in SW.

0 Mihai over 7 years ago in reply to Siri

Intellectual 500 points

And the CRC from COMMAND_CRC32 and data sent on the air, the CRC is implemented hardware? Or same in software?

0 Siri over 7 years ago in reply to Mihai

TI__Guru* 86131 points

HW, but there is no possibility to use this HW for other purposes.

0 Mihai over 7 years ago in reply to Siri

Intellectual 500 points

Oh okay! Thank you very much for patience and time! I will implement in in SW then.

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RTOS/CC2650: CRC Calculate