We're using PPP over uart to an Onion Omega 2s running openwrt (linux).
That device does NOT have hardware flow-control.
We're limited also to a baud rate of 250 000 due to this hardware.
The LTE has theoretical (and easily possible during our tests) speeds of greater than 500kbit/sec, which is of course greater than the uart baud rate.
Running iperf3 on the linux indicates (naturally) that we can communicate for a short time, until buffers fill up due to a major mismatch in communication speeds.
I'm guessing hw-flow-control would have fixed that? Am I understanding that correctly, is that how it's implemented in the nRF SDK?
So we could limit this in linux using `tc` or something, but it feels better to do it at the nRF side, is this even possible?
I've checked datasheets/at-command lists, google, existing DevZone posts...
Many thanks!
// Mark
