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From: | Felix Ruess |
Subject: | Re: [Paparazzi-devel] Baro ms5611 |
Date: | Sun, 25 Jan 2015 23:28:24 +0100 |
Helge.I use v5.4. I also tried with v5.2 but could not see any difference.- Defined and connected a bmp085 baro to the line, this worked just fine.- Connected a standalone ms5611 baro instead of the Drotek imu, and got the same results.- Had a closer look at the specific sequence, which showed Twog connecting to the baro, getting an ACK, one new message and ACK, then nothing more. There are two "spikes" in the communication sequence, which look strange to me.- Now the analyzer showed only one single sequence of communication with the baro; after 1.5s<t<2.0s. See screenshots. After that the i2c bus was silent.- Removed the defines for the imu, to look specifically for baro messages.- Connected the logic analyzer, but saw only imu messages. There was one for the baro however, see below.I had a closer look at this, with these results:Hi,Please see attached images. Screenshot_1.png showing 10s and Screenchot_2.png showing 0.6ms from the logic analyzer.As part of trying to get two ms5611's working at the same time with my Twog, I first wanted to get the baro on my Drotek 10dof v2 working. I placed the defines for the baro in the airframe file, as stated in the wiki. After this, the imu worked fine, but I got no data from the baro.I need to look into the ms5611 driver later anyway, but would be grateful for any input on this.BTW the Twog has a rather low i2c frequency at 37.5kHz, but I think this should not be a problem (?)Thanks,
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