**** BEGIN LOGGING AT Mon Aug 15 02:59:58 2016 Aug 15 07:02:16 Hello everyone! I want to start contributing. Could you guide me as to how to go about it? Aug 15 07:04:18 I'm new here too and want to contribute. please guide me. Aug 15 08:44:47 And I am still trying to figure out that !! hahah ! Aug 15 11:31:20 Hi Aug 15 11:31:56 I am developing I2C bus driver for RTEMS as my project goal of GSOC Aug 15 11:32:08 for beagle bone black Aug 15 11:33:53 Once slave address is set to I2C_SA does it still need to transmit slave address by transmit mode ? Aug 15 12:31:56 hi. anyone with somewhat deeper hardware/kernel logic? i'm trying to attach an ethernet adapter on the spi bus: a ENC28J60 chip. i've connected an oscilloscope etc and signals looks good (mosi, miso, sck, cs) and I can see that there is a response from the chip on the last request sent during init, but the kernel says it fails to find the chip because revision id is zero (which it is *not* when looking at the oscilloscope) Aug 15 12:32:24 i've verified that the hardware works on a raspberry pi Aug 15 13:27:10 Hey there, I'd like to get started with linux driver and kernel development. I already know C and linux. Recommendations for literature/books? :) Aug 15 17:14:11 jkridner, is there an ETA for Beagleboard Blue? Aug 15 17:14:30 just released the A1 layout to prototypes. Aug 15 17:14:41 I expect they'll be an A2 before we finalize. Aug 15 17:14:56 Maybe 6 months? Aug 15 17:15:06 working in the open at http://github.com/jadonk/beaglebone-blue. Aug 15 17:15:11 Tenacious-Techhu: that's a fair guess. Aug 15 17:15:33 Did you resolve any of the battery power issues that the Beagleboard Black had? Aug 15 17:15:42 That seems important for a version targeting robots. Aug 15 17:16:11 It has its own charge/balance/protection circuit, not using the TPS65217. Aug 15 17:16:31 The TPS65217 is still there to power the AM3358, but not for battery management. Aug 15 17:17:01 TPS65217 is single-cell only by my understanding anyway. We use a 2S. Aug 15 17:17:33 * jkridner hopes this is out of personal interest and not a blog post. Aug 15 17:17:51 I’m not researching here, just trying to figure out how to spend my money. Aug 15 17:18:11 SeeedStudio BeagleBone Green Wireless is interesting today. Aug 15 17:18:33 We are releasing the Robotics Cape to production on its own, so you can at least use that for prototyping. Aug 15 17:18:35 I think you should expect multiple cells for the power system, or at least tell people to power their motors and servos independent of the board... Aug 15 17:18:39 That should be within a month or so. Aug 15 17:18:47 Which seems to be a bit at cross-purposes for what the blue is for. Aug 15 17:19:06 well, we feel that 2S batteries can work pretty well even into multi-rotor designs. Aug 15 17:19:31 we have a separate 6V regulator for servo motors, but ESCs should be powered directly from the batteries. Aug 15 17:20:11 Good robots have all the problems of a smartphone combined with all the problems of RC cars. Battery support is important. Aug 15 17:22:02 I saw some good info about having quadrature encoder inputs, but what if you have some, say, absolute position encoders, or some other kind of encoding going on? Is the current thought that the user should just use some unused GPIOs for that, or is there any preexisting support for encoders? Aug 15 17:24:21 jkridner, still there? Aug 15 18:53:29 Has anyone here successfully booted uboot on the BBB over ethernet(cspw)? I'm having problems generating a working spl/u-boot image combo. Aug 15 22:32:36 jkridner, any provisions on the Beaglebone Blue for encoding other than just quadrature? Aug 15 22:34:01 nothing particular in terms of the provided software, but the hardware is capable of doing other types of encoding. 2-signal inputs. Aug 15 22:34:08 (per encoder) Aug 15 22:34:17 the hardware eQEP is used for 3 of the 4... Aug 15 22:34:25 the PRU is used for the fourth. Aug 15 23:07:17 jkridner, what about encoders of longer bit lengths? Or is that going to require serial? Aug 15 23:08:06 you'd likely need to use the PRUs.... There are some spare GPIO ports. Depends how many pins you need. Aug 15 23:15:41 Any simultaneously sampling DACs on this? Aug 15 23:32:13 jkridner, simultaneous sampling? Aug 16 01:50:38 hi folks, I bought a usb blaster and another logic analyzer. I want to learn similar to what I witness in Defcon 2 weeks ago. The person exposed /etc/shadow file by putting a hardware breakpoint and a jtag. I have a bbb and I would like to learn how it's done Aug 16 01:51:24 here is the video I recorded - https://www.youtube.com/watch?v=SVfCbXbZOhE They used jtag, black magic and raspberry pi2 **** ENDING LOGGING AT Tue Aug 16 02:59:58 2016