This evening I’ve been troubleshooting the Cinewhoop I purchased the other day.
I installed the BF4.3 RC3 target for the Mamba F405 US mini flight controller (so I could use the Ghost Protocol) and found the CPU Load was at 60%. If I reduced the Looptime from 8KHz to 2KHz the load dropped down to 23%, still what I’d call excessive for a F4 board.
I then installed BF4.2.11, and this time the CPU load was down to 6% with the Looptime back at 8KHz.
So I’m curious if others have noticed a significant CPU load when using BF4.3?
I happened on the above purely by accident as I’m trying to troubleshoot a receiver issue. When the quad is first powered up everything appears fine, but as time progresses the receiver response becomes very erratic and eventually stops responding altogether. This happens on both versions of the BF firmware I’ve listed above, and on the various protocols I’ve tested; GHOST, SRXL2, SBUS Inverted and non-inverted. I’m curious if it could be the heat from Caddx Vista unit that’s causing problems, it is mounted directly above the flight controller?
I have heard this from someone. The load has upped on 4.3. He was running dji fpv…
…Just checked my bf 4.3 on hdzero. Its on 47%. A little excessive! Well. Really excessive!
Thanks for the reply, Karl. There’s some reassurance knowing that I’m not the only one. It’s getting a bit past my bedtime now, but I’ll see what happens with the Caddx Vista disconnected on the 'morrow.
Just been playing again and I have two hypotheses.
The 5Volt line on the FC has a fault on it as the receiver isn’t powering on now.I have some Spektrum Satellite receivers kicking around somewhere so I can try the 3.3Volt line.
The Ghost receiver itself is faulty. This is a new receiver, the last of a batch of three I purchased a week or so ago. I can take the dual receiver off my 7inch quad as this is currently languishing in my not insignificant rebuild pile.
But first I need more coffee, and the three “S’s” before today’s unplanned destruction takes place.
Thanks for the info, Steve. I’m my own worst enemy when it comes to reading documentation, and especially embarrassed when the answer is right there in black and white.
Interestingly I may have discovered an issue with the Mamba F405 Mini US flight controller using BF4.3.
If I load up BF4.3 and select the Ghost protocol the receiver initially responds but after some rigorous stick bashing the Flight Controller locks up. If I then load up BF4.2.11 and use the SRXL2 protocol (Ghost is not available with this version), and bang the sticks around everything is fine. It’s not as if I’m using a crazy fast low latency frame rate with Ghost but rather it’s on Normal Mode.
I think it’s time to bang a missive off to Tony Cake of ImmersionRC and see if he can shed some of his wisdom on this.
Thanks for the info, I dropped mine down to 4k to lower it on an f7 fc as it was sitting somewhere around 55-60% if memory serves me correctly. Read somewhere that anything over 50% is high but never knew about the reporting difference. I’ll fire it back up then, even though I’d probably never notice at this stage of the game.
I must check out if I see a similar load discrepancy on my iFlight Titan equipped with the Kakute H7 board, my only other quad currently running BF4.3.
