CCS/CC2640R2F: 1us delay in CC2640R2F

Pritesh Metha4

Intellectual 555 points

Part Number: CC2640R2F

Tool/software: Code Composer Studio

Hi,

How to create 1us delay in project zero for CC2640R2f chip.

over 5 years ago

0 J Lindh over 5 years ago

TI__Guru 57865 points

Hi Pritesh,

I am not sure you can. That's really low resolution and usually it's recommended to use RTOS clock component for delays.

0 Christin Lee over 5 years ago

TI__Guru 56045 points

What do you need 1 us delay for?

0 Pritesh Metha4 over 5 years ago in reply to Christin Lee

Intellectual 555 points

Hi,

I want to interface ds18b20 temperature sensor with CC2640r2f. This sensor works on One wire protocol.I want to integrate one wire with project zero.In one wire i need 1 microsecond delay.

0 Christin Lee over 5 years ago in reply to Pritesh Metha4

TI__Guru 56045 points

Unfortunately we can't create a precise 1us delay, but what you can do is to make sure that CC2640r2 uses 2 GPIOs connected to the input of your temp sensor as they provided in their datasheet.

Once cc2640r2 sends a command to the sensor, the rx is already there to receive the response. Of course you will also receive what you send, but you can discard those commands from application.

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CCS/CC2640R2F: 1us delay in CC2640R2F