Interrrupt configuration in CC2640

Ankit Channa

Intellectual 590 points

Hi,

How to configure interrupt & respond to an interrupt in microseconds when i get interrupt on GPIO?

over 11 years ago

0 Fredrik K over 11 years ago

TI__Guru** 106705 points

Hi Ankit,

Have you read the documentation in the SW Developer Guide and the Technical Reference Manual?

Cheers,
Fredrik

0 Ankit Channa over 11 years ago in reply to Fredrik K

Intellectual 590 points

Hi Fredrik,

It takes around more than 800 to 1.2 ms to start SPI transfer upon to interrupt using the mentioned procedure in SW guide. Is it possible to reduce this duration?

Also please check the below thread

https://e2e.ti.com/support/wireless_connectivity/f/538/t/421220

Please suggest a suitable solution.

Thanks & regards,

Ankit Channa

0 svendbt over 11 years ago in reply to Ankit Channa

TI__Mastermind 29650 points

Ankit,

When using standby mode there are a lot of things that needs to be re-initialized again before your task starts executing and can start a SPI transfer. All modules without retention such as SPI has its configuration restored in addition to the BLE stack starting its initialization in case the radio needs to be used. If you need fast response time to start the transfer again you need to disallow standby mode so modules does not have to be restored.

Another option is to use the Sensor Controller instead for the ADC sampling.

Regards,
svend

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Interrrupt configuration in CC2640