Hmm, interesting, thank you.
Can you downgrade to 1.2.7 and do a quick test there?
We are soon releasing the 2.0 firmware beta + App, I will check to make sure this problem doesn't exist here. Thanks for reporting it.
not getting gps logs.
Moderators: JeffC, rdoherty, stieg, brentp
Ok so running it at 1.2.7 produces the same problem at multiple frequencies (above 10Hz). I've noticed that the time increment is always either 0, 0.094, or 0.109 (this is the case with both 1.2.7 and 1.2.brentp wrote:Hmm, interesting, thank you.
Can you downgrade to 1.2.7 and do a quick test there?
We are soon releasing the 2.0 firmware beta + App, I will check to make sure this problem doesn't exist here. Thanks for reporting it.
.I also lowered the frequencies down to 10Hz on the Accelerometers, and 5Hz on the GPS to see how it responded to multiple frequencies below 30Hz (since running everything at 10Hz has given the best results so far).
On both the 1.2.7 release and 1.2.8, running the clock and GPS at 5 Hz, accelerometers at 10Hz, I got fairly consistent time intervals (0.203, 1 in every 5 was 0.188).
Running the clock at 10Hz (all else run at 5 or 10Hz as listed above) resulted in time intervals of 0.094 or 0.109.
Any thoughts?
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Evan
- Attachments
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- Test 30Hz, Bench, FW Downgrade - 05142014.LOG
- Firmware downgraded to 1.2.7. Bad time increments on clock (with consistent values). Repeat clock values. Empty cells.
- (7.09 KiB) Downloaded 309 times
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- Test 5,10Hz, Bench, FW Downgrade - 05142014.LOG
- Firmware downgraded to 1.2.7. Clock run at 5 Hz. Accelerometers run at 10 Hz, GPS run at 5 Hz. Greater consistency on clocks time intervals (1 in every 5 is bad). No repeat clock values (good) No empty cells. (good).
- (6.05 KiB) Downloaded 312 times
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- Test 5,10Hz, Bench2, 10Hz Clock - 05142014.LOG
- Firmware at 1.2.8. Clock run at 10Hz.
- (2.25 KiB) Downloaded 278 times
I was seeing the empty cell phenomenon recently too - http://www.autosportlabs.org/viewtopic.php?t=4115 though I'm not sure which firmware I was testing with. Different logrates as well - my GPS time was logging at 1Hz.
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Learning Race Capture Pro... on someone else's car
Learning Python/Kivy on my own PC
Learning Race Capture Pro... on someone else's car
Learning Python/Kivy on my own PC
Have you discovered a solution to it yet?toga94m wrote:I was seeing the empty cell phenomenon recently too - http://www.autosportlabs.org/viewtopic.php?t=4115 though I'm not sure which firmware I was testing with. Different logrates as well - my GPS time was logging at 1Hz.
I checked on one of the bench files I did (logging GPS time at 5Hz). In Race Analyzer, it is 6.300s, my logfile is 64 lines including header (which looks good so far), but the time stamp is 182707.203 - 182700.797 = 6.406 seconds. So, it's climbed 0.106 seconds already in a ~6 second log.