ehhr... dont know why, but the pdf file does not open correctly on google docs. Some connectors are not displayed, although the connections to the BBB itself are perfect visible. Downloading and opening with a pdf viewer (okular, acrobat...) works perfectly.
Le samedi 25 juillet 2015 16:06:42 UTC-3, Carlos Novaes a écrit : > > Hi. > Sorry for the delay, attached is a pdf with the schematic. I tried to take > some pictures of my wiring and also to triple check the connections, but > the lab was closed for fumigation. > > Some other points are: > -> I am using both PRUs to read some encoders and generate four PWM > signals (10bits @ 12KHz). In this schematic only the encoder inputs are > complete. > -> I am powering this cape with a switched industrial grade power supply. > When I power up the board from the DC jack I am using a cheap adapter (also > switched). > -> If I power up from usb and after the board boot process I connect the > power to the extension cape, then I can read one encoder (have not tested > the others but they should). > > Thank you, > > Carlos Novaes > > Le vendredi 24 juillet 2015 18:43:39 UTC-3, Gerald a écrit : >> >> >> Not sure what you are doing wrong, hard to tell. >> >> What is your power source? >> Is it grounded? >> How much current can it supply? >> Can you send a picture of your wiring? >> >> Gerald >> >> >> On Fri, Jul 24, 2015 at 4:37 PM, Carlos Novaes <[email protected]> wrote: >> >>> Pins P9.5 and P9.6 are supposed to be connected to the DC power jack, as >>> stated in the BBB System Reference Manual (figure 23, and explicit stated >>> in page 113). So, I am using a external power supply at P9.1 ~ P9.2 as GND >>> and P9.5 ~ P9.6 as +5V. The power led goes up but the board does not start >>> to run and no other leds will blink. If I power up from DC jack or usb >>> cable, everything goes as expected, so I ask if I am doing something wrong >>> or should connect the other gnd pins. I double checked the connections and >>> they are ok. >>> >>> Thanks, >>> >>> -- >>> Carlos Novaes >>> >>> -- >>> 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 emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> Gerald >> >> [email protected] >> http://beagleboard.org/ >> > -- 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 emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
