RE: nrf51822 Timer2 Interrupt Problem

MartinBL — Wed, 25 Feb 2015 08:59:56 GMT

Hi,

You will never be able to trigger interrupts during TX or RX. The SoftDevice has complete control over the CPU when the radio is active. This is necessary to provide a stable BLE link, but has the downside, as you have discovered, of application latency. Have a look at the SoftDevice Specification. Chapter 11 explains processor availability and interrupt latency.

You can also do a search here on devzone. There are already a lot of people discussing the topic.

Martin

RE: nrf51822 Timer2 Interrupt Problem

twinkal — Tue, 24 Feb 2015 10:45:11 GMT

(I am very for asking here, I should not)

Hi guenther,

I am also facing same problem like u have related to timer and radio event. actually I want 1khz ADC sampling rate ,So in timer2 IRQ every 1ms I am trying to read 3 ADC . But bcoz of radio event I am getting around 1-0.6ms error but I want accurate .

and I sated connection interval max =75ms and min = 10ms, and slave latency = 0.