WHAT is the CPU blocking period(s110 and NRF51822)?

[twinkal]

hi!,

I am configuring connection interval time is 7.5ms , and slave latency is zero.and every connection interval event I am sending 1 packets (and my data lenth is only 3 bytes). if I will increase connection interval time than what happened ? and bcoz of CPU blocking I am not getting 1khz timer (actually I am getting 0.5-0.7ms error).

thanks

[Hung Bui]

Hi Twinkal,

As pointed here, the interrupt latency (CPU blocking period or the delay of the interrupt handler) depends on the number of packets per connection event (the period that the radio is active to send and receice packets.

Since it's more about how long the radio is active per connection event, it doesn't mater what's your connection interval is. In your case, if you send 1 packet per event, the interrupt latency could be maximum 1180us (Table 30 in S110 Softdevice Spec).