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nrf51822 Timer2 Interrupt Problem

Guenther

Hi, I am using Timer0..2 interrupts along with radio TX/RX. When the Timer2 interrupt coincides with RX/TX the Timer2 is halted for approx. 450 µs during TX. Is there a conflict between Timer2 and the RX/TX interrupt?

BR Günther

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    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

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    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

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