CC2640R2F: GPIO SPEED

vahid javadi

Prodigy 100 points

Part Number: CC2640R2F

Hi i try to make 2 MHZ frq on DIO6 by GPIO_toggle() but i get 250 khz . can you explain reason of this ?

over 1 year ago

0 David Chen over 1 year ago

TI__Prodigy 270 points

Hello Vahid,

Can you please provide more information on how you are using GPIO_toggle()? What code base are you starting with and could you also provide a code snippet that shows your implementation?

Similarly, if the goal is only to get a 2MHZ frequency on the DIO6 pin, you can also use a PWM for more accurate results.
Here is the PWMTimer reference: https://dev.ti.com/tirex/explore/node?node=A__APBcuxJTKKNMz9zTKL4.9A__com.ti.SIMPLELINK_CC2640R2_SDK__krol.2c__LATEST
Here is a example reference for modifying PWMTimer: https://dev.ti.com/tirex/explore/node?node=A__AC9I8JZi0XGr4s.0Gqwnug__com.ti.SIMPLELINK_CC2640R2_SDK__krol.2c__LATEST

Best,

David

0 vahid javadi over 1 year ago in reply to David Chen

Prodigy 100 points

Hi thank you David but i need generate just 4 pulse . I solve my problem by usig :

GPIO_setDio(IOID_7);

ASM_NOP;
GPIO_clearDio(IOID_7);

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CC2640R2F: GPIO SPEED