Can you show me what this command show : dmesg|grep ttyO*
I repeat only omap driver work for rs485 Le mar. 26 avr. 2016 00:40, 'Artur Festyn' via BeagleBoard < beagleboard@googlegroups.com> a écrit : > It is easy and already disabled. > My question is about RS485 and custom gpio to drive DE pin of RS485 chip. > > > 2016-04-25 23:22 GMT+01:00 evilwulfie <evilwul...@gmail.com>: > >> read this. disabling I2C2 is not as easy as using an overlay >> if you are not using capes sure but IMHO is always best to leave the >> default things enabled and just work with overlays >> >> http://www.embedded-things.com/bbb/enable-canbus-on-the-beaglebone-black/ >> >> >> >> >> >> On 4/25/2016 2:09 PM, 'Artur Festyn' via BeagleBoard wrote: >> >> Honestly I don't know. I though this might be useful info :) >> Three is no problem to disable I2C-2, but I am using those pins for CAN0. >> That is why I want to use custom gpio to drive RS485 DE which doesn't >> work. >> >> 2016-04-25 21:56 GMT+01:00 William Hermans <yyrk...@gmail.com>: >> >>> *cat /proc/tty/driver/serial* >>> >>> *serinfo:1.0 driver revision:* >>> *0: uart:8250 mmio:0x44E09000 irq:158 tx:2451 rx:0 RTS|CTS|DTR|DSR* >>> *1: uart:8250 mmio:0x48022000 irq:159 tx:24 rx:0 CTS|DSR|CD|RI* >>> *2: uart:8250 mmio:0x48024000 irq:160 tx:0 rx:0 CTS|DSR* >>> *3: uart:unknown port:00000000 irq:0* >>> *4: uart:8250 mmio:0x481A8000 irq:161 tx:2 rx:1 brk:1 CTS|DSR* >>> >>> *5: uart:unknown port:00000000 irq:0* >>> >>> What is this supposed to mean ? That says UART0 has RTS, CTS, etc, but >>> they're not connected to anything. So the CTS on UART1 means nothing. >>> Because it's connected to I2C-2, which I'm sure you would have all kinds of >>> fun disabling I2C-2 . . . >>> >>> >>> On Mon, Apr 25, 2016 at 1:14 PM, 'Artur Festyn' via BeagleBoard < >>> <beagleboard@googlegroups.com>beagleboard@googlegroups.com> wrote: >>> >>>> cat /proc/tty/driver/serial >>>> serinfo:1.0 driver revision: >>>> 0: uart:8250 mmio:0x44E09000 irq:158 tx:2451 rx:0 RTS|CTS|DTR|DSR >>>> *1: uart:8250 mmio:0x48022000 irq:159 tx:24 rx:0 CTS|DSR|CD|RI* >>>> 2: uart:8250 mmio:0x48024000 irq:160 tx:0 rx:0 CTS|DSR >>>> 3: uart:unknown port:00000000 irq:0 >>>> 4: uart:8250 mmio:0x481A8000 irq:161 tx:2 rx:1 brk:1 CTS|DSR >>>> 5: uart:unknown port:00000000 irq:0 >>>> >>>> >>>> 2016-04-25 21:12 GMT+01:00 Artur Festyn < <fes...@googlemail.com> >>>> fes...@googlemail.com>: >>>> >>>>> I can't use RTS/CTS pins on UART4 because I need HDMI. >>>>> New RS485 patches suppose to help to use any gpio as RS485 RTS and in >>>>> fact any gpio for any UART as RTS/CTS. >>>>> >>>>> >>>>> >>>>> >>>>> 2016-04-25 21:00 GMT+01:00 evilwulfie < <evilwul...@gmail.com> >>>>> evilwul...@gmail.com>: >>>>> >>>>>> any reason you want to use uart1 ? >>>>>> >>>>>> if you use uart4 you can use the whole uart tx rx and rts. trying to >>>>>> bitbang rts for rs485 on uart1 sounds hard >>>>>> >>>>>> >>>>>> >>>>>> On 4/25/2016 12:24 PM, 'Jan Kinkazu' via BeagleBoard wrote: >>>>>> >>>>>> So i compiled (bb-kernel, all patches) and installed 4.5.2-bone4 >>>>>> I have modified am335-boneblack.dts and compiled it. >>>>>> >>>>>> #include "am335x-peripheral-ttyS1.dtsi" >>>>>> #include "am335x-bone-pinmux-ttyS1.dtsi" >>>>>> >>>>>> &am33xx_pinmux { >>>>>> uart1_pins: pinmux_uart1_pins { >>>>>> pinctrl-single,pins = < >>>>>> /* P9_23: uart1_de */ >>>>>> BONE_P9_23 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) >>>>>> >; >>>>>> }; >>>>>> }; >>>>>> >>>>>> &uart1 { >>>>>> pinctrl-names = "default"; >>>>>> pinctrl-0 = <&uart1_pins>; >>>>>> status = "okay"; >>>>>> rts-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>; >>>>>> rs485-rts-active-high; >>>>>> rs485-rx-during-tx; >>>>>> rs485-rts-delay = <1 1>; >>>>>> linux,rs485-enabled-at-boot-time; >>>>>> }; >>>>>> >>>>>> RS485 doesn't work, what do I do wrong? >>>>>> >>>>>> Kind regards >>>>>> >>>>>> >>>>>> On Friday, 12 February 2016 15:33:40 UTC, Taceant Omnes wrote: >>>>>>> >>>>>>> I would like to use RS485 with the BBB. >>>>>>> >>>>>>> root@beaglebone:~/test# uname -a >>>>>>> Linux beaglebone 4.1.15-ti-r40 #1 SMP PREEMPT Thu Jan 7 23:32:17 UTC >>>>>>> 2016 armv7l GNU/Linux >>>>>>> >>>>>>> I am using the kernel above. Its source code is at >>>>>>> >>>>>>> <https://github.com/RobertCNelson/linux-stable-rcn-ee/tree/4.1.15-ti-rt-r40> >>>>>>> https://github.com/RobertCNelson/linux-stable-rcn-ee/tree/4.1.15-ti-rt-r40 >>>>>>> >>>>>>> ... however it does not include the changes in this patch: >>>>>>> >>>>>>> <https://github.com/RobertCNelson/bb-kernel/blob/am33x-v3.8/patches/fixes/0007-omap-RS485-support-by-Michael-Musset.patch#L30> >>>>>>> https://github.com/RobertCNelson/bb-kernel/blob/am33x-v3.8/patches/fixes/0007-omap-RS485-support-by-Michael-Musset.patch#L30 >>>>>>> >>>>>>> Which kernel should I use that includes the changes in the patch or >>>>>>> something similar? >>>>>>> >>>>>> -- >>>>>> For more options, visit <http://beagleboard.org/discuss> >>>>>> 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 <beagleboard+unsubscr...@googlegroups.com> >>>>>> beagleboard+unsubscr...@googlegroups.com. >>>>>> To view this discussion on the web visit >>>>>> <https://groups.google.com/d/msgid/beagleboard/50692f39-69e3-4454-b8ba-ec03e4d86101%40googlegroups.com> >>>>>> https://groups.google.com/d/msgid/beagleboard/50692f39-69e3-4454-b8ba-ec03e4d86101%40googlegroups.com >>>>>> . >>>>>> For more options, visit <https://groups.google.com/d/optout> >>>>>> https://groups.google.com/d/optout. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> >>>>>> Virus-free. >>>>>> >>>>>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> >>>>>> www.avast.com >>>>>> -- >>>>>> For more options, visit <http://beagleboard.org/discuss> >>>>>> http://beagleboard.org/discuss >>>>>> --- >>>>>> You received this message because you are subscribed to a topic in >>>>>> the Google Groups "BeagleBoard" group. >>>>>> To unsubscribe from this topic, visit >>>>>> <https://groups.google.com/d/topic/beagleboard/nMtRpdWSJu0/unsubscribe> >>>>>> https://groups.google.com/d/topic/beagleboard/nMtRpdWSJu0/unsubscribe >>>>>> . >>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>> <beagleboard+unsubscr...@googlegroups.com> >>>>>> beagleboard+unsubscr...@googlegroups.com. >>>>>> To view this discussion on the web visit >>>>>> <https://groups.google.com/d/msgid/beagleboard/571E7751.2020206%40gmail.com?utm_medium=email&utm_source=footer> >>>>>> https://groups.google.com/d/msgid/beagleboard/571E7751.2020206%40gmail.com. >>>>>> >>>>>> >>>>>> For more options, visit <https://groups.google.com/d/optout> >>>>>> https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> >>>> -- >>>> For more options, visit <http://beagleboard.org/discuss> >>>> 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 <beagleboard+unsubscr...@googlegroups.com> >>>> beagleboard+unsubscr...@googlegroups.com. >>>> To view this discussion on the web visit >>>> <https://groups.google.com/d/msgid/beagleboard/CAAPjYCaM58KxhqX_s1DwsdJ7z2tdemEoCVHjZj0D780CpxQTug%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> https://groups.google.com/d/msgid/beagleboard/CAAPjYCaM58KxhqX_s1DwsdJ7z2tdemEoCVHjZj0D780CpxQTug%40mail.gmail.com >>>> . >>>> >>>> For more options, visit <https://groups.google.com/d/optout> >>>> https://groups.google.com/d/optout. >>>> >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "BeagleBoard" group. >>> To unsubscribe from this topic, visit >>> <https://groups.google.com/d/topic/beagleboard/nMtRpdWSJu0/unsubscribe> >>> https://groups.google.com/d/topic/beagleboard/nMtRpdWSJu0/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> beagleboard+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> <https://groups.google.com/d/msgid/beagleboard/CALHSORrEpSMUET0monBs3YB-qonsfYPzCjQex%3DZdhZ-KMskn%2BA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> https://groups.google.com/d/msgid/beagleboard/CALHSORrEpSMUET0monBs3YB-qonsfYPzCjQex%3DZdhZ-KMskn%2BA%40mail.gmail.com. >>> >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> 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 beagleboard+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> <https://groups.google.com/d/msgid/beagleboard/CAAPjYCawdcQZ1%2BOvszmEj0Zp4yPfS7qDfMfOn-R1OZZ1u29KmQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> https://groups.google.com/d/msgid/beagleboard/CAAPjYCawdcQZ1%2BOvszmEj0Zp4yPfS7qDfMfOn-R1OZZ1u29KmQ%40mail.gmail.com >> . >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> >> Virus-free. >> www.avast.com >> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/nMtRpdWSJu0/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> beagleboard+unsubscr...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/571E98A0.8090608%40gmail.com >> <https://groups.google.com/d/msgid/beagleboard/571E98A0.8090608%40gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > -- > 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 beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAAPjYCaFgpxq0Q7z65%3DU1Go7qMoP9%2BwN-YHq7C7VBYOTFV3C0A%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAAPjYCaFgpxq0Q7z65%3DU1Go7qMoP9%2BwN-YHq7C7VBYOTFV3C0A%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAF%2BMRtkTxXFNPH-NSpyvhtsi0NfPdnG4tbsXBbbe0DnX3sN5qg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
