[beagleboard] Re: Using GPIO for SPI Slave Selects

2017-12-14 Thread Robert M
Hi Aniket, The main limitation for the number of SPI slave devices allowed in an independent slave configuration is the number of CS lines available to you and the ability for data and clock lines to meet threshold high and low logic levels. In the Arduino code provided in the tutorial you

[beagleboard] Re: Has Anyone Had Difficulty Outputting GPIO, UART, or I2C on the BB-X15's Expansion Header?

2017-12-14 Thread Jeff Andich
Ok, this is the kind of thing you just can't make up and I'm REALLY not trying to be the laughing stock of the internet, but here's what my issue was. The orientation of the mating Hirose connector on our PCBA breakout board (which plugs up under the BB-X15/572Xevm) is rotated 180 degrees

Re: [beagleboard] Re: PocketBeagles are Unstable

2017-12-14 Thread Graham
OK. I'll be glad to gather any data for you that I can. I can grab some scope traces of what the power looks like. I don't have anything that will do 24 hour long captures. The bench supply I have is well regulated, and quiet, 5 Amp. I have run two PB (on Vin P1-pin1) from the same supply

Re: [beagleboard] Re: Boot bare metal application - MLO no longer used?

2017-12-14 Thread Jason Kridner
On Monday, November 27, 2017 at 2:05:41 PM UTC-5, mike.maikae...@gmail.com wrote: > > OK, I got it: it seems, the Octavo-SoC does NOT support MLO as file on the > FatSF partition. Writing it into the forst section of the SD card solved > the problem, now the MLO is found and loaded. > This is

[beagleboard] Re: Has Anyone Had Difficulty Outputting GPIO, UART, or I2C on the BB-X15's Expansion Header?

2017-12-14 Thread Jeff Andich
And the investigation continues in the following thread on E2E: https://e2e.ti.com/support/arm/sitara_arm/f/791/p/649900/2388226#pi316653=1 Thanks and FYI, On Monday, December 11, 2017 at 2:22:52 PM UTC-6, Jeff Andich wrote: > > > My comments above about configuring the pinmux in u-boot SPL

Re: [beagleboard] BBBW had issue

2017-12-14 Thread Robert Nelson
On Thu, Dec 14, 2017 at 9:29 AM, 杜克禮 wrote: > Hi All > > My BBBW had issue,Cannot booting from eMMC but SD card boot properly. Plug in a usb-serial adapter into the debug port. What do you see when you try booting from eMMC.. Regards, -- Robert Nelson

[beagleboard] BBBW had issue

2017-12-14 Thread 杜克禮
Hi All My BBBW had issue,Cannot booting from eMMC but SD card boot properly. TKS -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving

[beagleboard] Re: Using GPIO for SPI Slave Selects

2017-12-14 Thread Aniket Mazumder
Hi Robert I am facing a problem simiar to yours. My project involvs connecting 4 arduino pro mini's as slaves to a Beaglebone black. I am able to share data between one arduino and the beaglbone by following the link below :http://www.ulasdikme.com/projects/arduino/BBB_Arduino_SPI.php I

Re: [beagleboard] Control de una protesis mioelectrica en BBB

2017-12-14 Thread Jeff Andich
I know nothing about myoelectric prosthesis and the processing and real time requirements for what this device is required to do. Sounds like the thesis could entail an analysis of existing myoelectric prosthesis currently available, and selection of a range of computers/processors which are