BC127 SPP retransmission mode

[Vianney]

Hi @yt.chen,
As I mentioned in the last comments, there was a customer got same issue.
He confirmed that he had verified on Melody 7.0.0 Beta 2 in V3 HW for SPP data transfer issue, the result is good
For V2 HW, using Fw 6.1.8 is working fine. I cannot find the mentioned FW in the Sierra source page Let consider if you want to try FW 6.1.5 instead on BC127 v2
https://source.sierrawireless.com/resources/airprime/software/bc127-firmware/#sthash.kFASXE9H.dpbs
Attaching the ticket mentioning the same problem

BC127 cannot consume all data in high speed mode

Brett, Did some more testing, took the UART upto 460kbps and was getting 160kbps out of the unit, performance seems to level out here (not a huge difference between setting the UART to 230 or 460) so either this is where the limit is practically or there is a bottle neck either in the app, BC127 or the UART link itself. As a rule anyone driving data rates over 115200 goes USB because serial links start to get unreliable beyond this. Regards Matt

Thanks