> On Thursday, May 11, 2017 at 11:44:40 AM UTC-5, Torsten K. wrote: >> >> >> Hi, >> >> two weeks ago I received my BeagleBone Blue. >> >> So far, I've managed to get >> >> - an OrangeRX DSMX receiver >> - a GP-735T GPS receiver >> - a Servo >> - and a 2S LiPo Akku >> >> going, more or less without any problems. >> >> However, all the I²C devices I connected to the available I²C bus #1 so >> far only work "one-way". I.e., I can send data to the devices and they do >> what they are supposed to, but I can't seem to get any data from a device >> to the BBBlue. >> >> E.g., I've got a I²C DC motor controller (with more juice than the >> builtin one). >> I can set my motors spinning, braking, reversing, ... using this >> controller, but I can't get any status information back from the device. >> >> I already swapped all cables (and measured them) - they seem to be okay. >> >> Can it have something to do with the I²C-settings in the dtb? How does >> u-boot select the right dtb anyway? >> >> Thanks in advance, >> Torsten >> > So, you have to be doing something wrong. A beaglebone wont function unless I2C is working. Show us what you're doing, that is not working. The command, and the output. If you're using your own source, we need to see that too. Keep in mind that I do also have hands on experience with writing applications that use I2C in C, and most recent just a week ago. But no personal hands on with the beaglebone blue. The hardware in this case however should be exactly the same.
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