nrf51822 Custom Hardware slow connection

RE: nrf51822 Custom Hardware slow connection

Luis Alberto — Wed, 22 Oct 2014 17:56:16 GMT

Sorry, It was my mistake. I've check again and I did have different advertising parameter for both, connection interval were the same. Once the advertising were the same, all start working fine. Also, I didn't see any retransmissions with the sniffer. Thanks!

RE: nrf51822 Custom Hardware slow connection

Luis Alberto — Wed, 24 Sep 2014 15:19:14 GMT

The connection interval and the slave latency is the same in both. I will check the packets with the sniffer and I will let you know how it goes, thanks!

RE: nrf51822 Custom Hardware slow connection

Aashish Patel — Wed, 24 Sep 2014 12:25:11 GMT

Hi,

Are you running the same code you used on PCA10004. Then it should work fine else please check advertising interval and connection interval values that you are setting in your code.

Other than that I think wire antenna can also be an issue here (it must not be picking up lot of signals or must be picking lot of other signals). Try without wire, keep bluetooth device very close to the board if you are getting similar result , you can try with a proper antenna.

RE: nrf51822 Custom Hardware slow connection

John — Wed, 24 Sep 2014 12:21:48 GMT

A couple of suggestions: 1) Check that your connection interval and slave latency settings are the same in both projects; 2) Use a sniffer to see if there are a lot of re-transmitted packets as that will slow your data rate.

RE: nrf51822 Custom Hardware slow connection

Luis Alberto — Tue, 23 Sep 2014 23:50:22 GMT

The PCA10004 chip says N51822 QFAAGO 1342AA On the custom hardware I can't look at the part number on the chip at this moment, but the chip vendor says: Manufacturer Part Number: NRF51822-QFAA-R7

RE: nrf51822 Custom Hardware slow connection

Nikita — Tue, 23 Sep 2014 23:29:54 GMT

What's the chip HW versions for PCA10004 and custom board?