BLE interval will be change

[yellan]

1、Demo position：Nordic\nRF5_SDK_15.2.0_9412b96\examples\ble_peripheral\ble_app_uart\pca10056

2、I find when the code execute the function of timer_start_op_schedule,the CRITICAL_REGION_ENTER(); will close the interrupt, it will distort the interval of the ble，is there some way to resolve the problem?

3、If i remove the function of CRITICAL_REGION_ENTER directly，Some error will occur or not？

[Joakim Jakobsen]

Hi.

Not quite sure I understand what the problem is here.
Maybe this is useful for you:
https://devzone.nordicsemi.com/f/nordic-q-a/37302/critical_region_enter-exit-error-app_util_platform-h

Br,
Joakim

[yellan]

hi Joakim,

 Thanks for your reply, the article provided by the link is related with the compiling.

 what i want to know is  that CRITICAL_REGION_ENTER() will distorb the interval of BLE and the response time of other interrupt or not

[Joakim Jakobsen]

Hi again. 

Apologize for the delay. 

I don't have any information about what you are really doing or how your application works, but in general; no, it should not "disturb" BLE. 

You can take a look at Kristin's answer in this post: 
https://devzone.nordicsemi.com/f/nordic-q-a/19570/__enable_irq-reset-the-device-in-sdk12-0-0/76132#76132

CRITICAL_REGION_ENTER/EXIT call sd_nvic_critical_region_enter/exit. sd_nvic_critical_region_enter disables all application interrupts, but handle the radio interrupts, so that the BLE link is kept.

Br, 
Joakim