SPI implementation on CC2650

PATRICK OHARA

Other Parts Discussed in Thread: CC2650, CC2640

I'm implementing a 2Mb SPI FLASH device for data logging on the CC2650. The data sheet refers to "SSI (SPI)" interface. Of course SSI and SPI are not the same thing. I presume that the SPI bus is implemented instead of SSI. I don't see a description in the Technical Reference Manual (although I'm sure it's there) as to how to implement the SPI bus in CCS. Please provide a link, page number or other reference that would help me understand SPI implementation on the CC2650.

over 11 years ago

0 Aslak N. over 11 years ago

TI__Mastermind 23440 points

Hi,

Well, it's a standard ARM peripheral, so for the nitty gritty you can refer to their documentation.

For the interface from our Cortex-M3 the SSI chapter is your guide.

For how to use the TI-RTOS SPI driver (since you mention CCS), please refer to the driver documentation included in TI-RTOS:
file:///C:/ti/tirtos_simplelink_2_11_01_09/tirtos_docs_overview.html --> TI-RTOS Driver Runtime APIs (doxygen) --> SPI (both SPI.h and the CC26xx implementation).

The SPI driver is also used for an external flash device in the SensorTag application.

BR,
Aslak

0 PATRICK OHARA over 11 years ago in reply to Aslak N.

Genius 3205 points

Thanks Aslak, that documentation is very useful.

0 Sergey Belov over 9 years ago in reply to Aslak N.

Intellectual 410 points

Hello Aslak. For several days looking for SPI Flash example sensortag. Could you tell where you can download this example.

0 Aslak N. over 9 years ago in reply to Sergey Belov

TI__Mastermind 23440 points

Hi Sergey,

Not sure what you mean. If you download the BLE SDK and open up the SensorTag project, you will find it uses the external flash. Ctrl+F for ExtFlash. (Ctrl+H in CCS and Ctrl+Shift+F in IAR)

Best regards,
Aslak

0 Sergey Belov over 9 years ago in reply to Aslak N.

Intellectual 410 points

Thank you very match.

I have BIM for External Flash OAD Project for CC2640. But use CC2650. Is it ok?

0 Aslak N. over 9 years ago in reply to Sergey Belov

TI__Mastermind 23440 points

Yes, the only difference between CC2650/CC2640 devices is the radio capabilities, so that is ok.
BR,
Aslak

0 Arun Joe over 9 years ago in reply to Aslak N.

Expert 1780 points

where to get tirtos_simplelink_2_11_01_09, I got tirtos_simplelink_2_11_01_06 and tirtos_simplelink_2_11_01_08 for my cc2650 lauchpad

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SPI implementation on CC2650