Smartrtl Deactivated buffer full

ArduCopter Copter 4.0
1

I got a weird error today.
Was just sitting at the field…Had just powered up the quad when a minute or so later I got the announcement Smart RTL disabled Buffer full. What the heck. I have never run into that one before.

|19:00:55|ArduCopter V4.0.4-rc3 (d70e75b3)||—|---|
|19:00:55|ChibiOS: d4fce84e|
|19:00:55|fmuv3 001C002A 33375110 31313537|
|19:00:55|Param space used: 1656/3840|
|19:00:55|RC Protocol: SBUS|
|19:00:55|New mission|
|19:00:55|New rally|
|19:00:55|Frame: QUAD|
|19:00:55|GPS 1: detected as u-blox at 115200 baud|
|19:00:55|u-blox 1 HW: 00080000 SW: 2.01 (75331)|
|19:01:54|EKF2 IMU0 in-flight yaw alignment complete|
|19:01:54|EKF2 IMU1 in-flight yaw alignment complete|
|19:02:50|SmartRTL deactivated: buffer full|

2

Hi Ricky- I have seen that many times. If you want to continue to use Smart RTL on long flights increase the SRTL_ACCURACY value from default (2m) so the buffer doesn’t fill.

1 Like
3

thanks Dave
just found it odd to get that 1 minute after boot up

4

Strange…
SRTL only had 7 points (from somewhere…) when the maximum was set to 300. You’ve got GPS settings but nothing is logged for it, there’s Lat and Lng readings in the log though.

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DSF.Bytes takes a nose-dive, maybe that’s indicative of running out of memory for some other reason.

5

Hey Shawn.
Ya it’s really odd. I rebooted the craft and the error went away. I had no further error of that nature. I will keep an eye on it and report if it happens again. Very odd.
The problem I am up against now is I keep getting the message Trim Saved…huh. Why.
Will check my config in case I set something wrong.

6

got it again
SmartRTL deactivated: buffer full