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UART RX problem- nrf51822

Hi,

I'm developing to NRF81522 mcu, using a softdevice S130.

The MCU is connected to another device through the UART peripheral.

I'm encountering the next problems (I think that they are connected):

On startup the other device starts sending messages through the UART, when the MCU initialize the UART module - the RX channel doesn't work at all (I don't see any indication to RX interrupts - even though there are messages on this channel).

Right now I'm handling it by starting the other device after the MCU initialization is done (but it's not an option for the final version).

The other problem is that after a good initialization (and a UART that is working) - if the device is sending UART messages in high frequency - the mcu will stop getting UART RX interrupts (until reset).

Please advise (I tried to look for similar problem, but didn't find any).

Thanks, Hila

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