* Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform [not found] <1338845698.76889.YahooMailNeo@web140802.mail.bf1.yahoo.com> @ 2012-06-04 21:52 ` Marc Kleine-Budde 2012-06-04 21:55 ` Marc Kleine-Budde 2012-06-05 5:00 ` Keith Jones [not found] ` <4FD9DB62.50302@grandegger.com> 1 sibling, 2 replies; 5+ messages in thread From: Marc Kleine-Budde @ 2012-06-04 21:52 UTC (permalink / raw) To: Keith Jones; +Cc: linux-can@vger.kernel.org [-- Attachment #1: Type: text/plain, Size: 2108 bytes --] Hello Keith, please switch to the "linux-can@vger.kernel.org" mailinglist, the berlios list is obsolete. On 06/04/2012 11:34 PM, Keith Jones wrote: > I booted up my new Infotainment demo board after ported 2.6.39 > flexcan (flexcan.h flexcan.c) support into my 2.6.35 linux distro. Use v3.4 or better, this version contains some vital fixes against error irq floods. > After seeing flexcan driver register and performing the following > commands, I get constant interrupts and error packets visualized > using my Canoe CANbus sniffer. I am using 250K baud. Did not check > termination. No oscilloscope was used as yet. Can not receive any > packets. can state goes from ERROR-ACTIVE to ERROR-PASSIVE. Please check the Termination, do you have a second CAN member on the bus? > Any clues? > root@freescale ~$ cansend can0 123#1122334455 > root@freescale /usr/bin$ ip -d -s link show can0 > 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 > link/can > can state ERROR-PASSIVE (berr-counter tx 128 rx 0) restart-ms 0 > bitrate 250000 sample-point 0.875 > tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > flexcan: tseg1 4..16 tseg2 2..8 sjw 1..4 brp 1..256 brp-inc 1 > clock 24000000 > re-started bus-errors arbit-lost error-warn error-pass bus-off > 0 0 0 5 5 0 > RX: bytes packets errors dropped overrun mcast > 80 10 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 5 0 0 0 0 0 If the tx error counter goes up, the device may be the only device on the CAN bus. Your sniffer is probably totally passive, which means it doesn't qualify as a second station. cheers, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 262 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform 2012-06-04 21:52 ` [Socketcan-users] Flexcan on i.mx536 Infotainment Platform Marc Kleine-Budde @ 2012-06-04 21:55 ` Marc Kleine-Budde 2012-06-05 5:00 ` Keith Jones 1 sibling, 0 replies; 5+ messages in thread From: Marc Kleine-Budde @ 2012-06-04 21:55 UTC (permalink / raw) To: Keith Jones; +Cc: linux-can@vger.kernel.org [-- Attachment #1: Type: text/plain, Size: 529 bytes --] On 06/04/2012 11:52 PM, Marc Kleine-Budde wrote: > Hello Keith, > > please switch to the "linux-can@vger.kernel.org" mailinglist, the > berlios list is obsolete. BTW: don't post HTML mails on that list, they won't get through. cheers, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | [-- Attachment #2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 262 bytes --] ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform 2012-06-04 21:52 ` [Socketcan-users] Flexcan on i.mx536 Infotainment Platform Marc Kleine-Budde 2012-06-04 21:55 ` Marc Kleine-Budde @ 2012-06-05 5:00 ` Keith Jones 1 sibling, 0 replies; 5+ messages in thread From: Keith Jones @ 2012-06-05 5:00 UTC (permalink / raw) To: Marc Kleine-Budde; +Cc: linux-can@vger.kernel.org On Monday, June 4, 2012 2:52 PM, Marc Kleine-Budde wrote: Subject: Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform > Hello Keith, > please switch to the "linux-can@vger.kernel.org" mailinglist, the > berlios list is obsolete. > On 06/04/2012 11:34 PM, Keith Jones wrote: >> I booted up my new Infotainment demo board after ported 2.6.39 >> flexcan (flexcan.h flexcan.c) support into my 2.6.35 linux distro. > Use v3.4 or better, this version contains some vital fixes against error > irq floods. Ok moving to v3.4 kernel. I will reply with results. >> After seeing flexcan driver register and performing the following >> commands, I get constant interrupts and error packets visualized >> using my Canoe CANbus sniffer. I am using 250K baud. Did not check >> termination. No oscilloscope was used as yet. Can not receive any >> packets. can state goes from ERROR-ACTIVE to ERROR-PASSIVE. > Please check the Termination, do you have a second CAN member on the bus? I have performed two activities: (1) just the demo board and (2) the demo board and a terminated device. With both, I observed the same error packet results. I have also attached a scope and observed solid CAN signalling on the bus when the remote is sending J1939 ids. The plan is to retest again after moving to 3.4. >> Any clues? >> root@freescale ~$ cansend can0 123#1122334455 >> root@freescale /usr/bin$ ip -d -s link show can0 >> 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 >> link/can >> can state ERROR-PASSIVE (berr-counter tx 128 rx 0) restart-ms 0 >> bitrate 250000 sample-point 0.875 >> tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 >> flexcan: tseg1 4..16 tseg2 2..8 sjw 1..4 brp 1..256 brp-inc 1 >> clock 24000000 >> re-started bus-errors arbit-lost error-warn error-pass bus-off >> 0 0 0 5 5 0 >> RX: bytes packets errors dropped overrun mcast >> 80 10 0 0 0 0 >> TX: bytes packets errors dropped carrier collsns >> 5 0 0 0 0 0 > If the tx error counter goes up, the device may be the only device on > the CAN bus. Your sniffer is probably totally passive, which means it > doesn't qualify as a second station. tx error counter does go up and yes, my sniffer is passive. > cheers, Marc ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <4FD9DB62.50302@grandegger.com>]
* Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform [not found] ` <4FD9DB62.50302@grandegger.com> @ 2012-06-15 5:51 ` Wolfgang Grandegger 2012-06-15 6:42 ` Wolfgang Grandegger 0 siblings, 1 reply; 5+ messages in thread From: Wolfgang Grandegger @ 2012-06-15 5:51 UTC (permalink / raw) To: Keith Jones; +Cc: Linux-CAN Hello, I forgot to switch to the new Linux-CAN mailing list... doing it now. On 06/14/2012 02:38 PM, Wolfgang Grandegger wrote: > On 06/04/2012 11:34 PM, Keith Jones wrote: >> Hello, >> >> I booted up my new Infotainment demo board after ported 2.6.39 flexcan (flexcan.h flexcan.c) support into my 2.6.35 linux distro. >> >> After seeing flexcan driver register and performing the following commands, I get constant interrupts and error packets visualized using my Canoe CANbus sniffer. I am using 250K baud. Did not check termination. No oscilloscope was used as yet. Can not receive any packets. can state goes from ERROR-ACTIVE to ERROR-PASSIVE. >> >> >> Any clues? > > Is there at least one more CAN node on the bus acknowledging the > message? If not, the behavior is normal. Also improper termination or > bit-timing could cause bus errors. > > Is Flexcan known to work on that hardware and software? The transceivers > might still be off, etc. The 2.6.35 kernel you use, is it from Freescale? If that's the case, you need also to port the platform code for the Flexcan controller. Wolfgang. >> -------------------------------------------------- >> >> . >> . >> >> vcan: Virtual CAN interface driver >> CAN device driver interface >> flexcan netdevice driver >> flexcan flexcan.0: device registered (reg_base=e09f0000, irq=82) >> flexcan flexcan.1: device registered (reg_base=e09f8000, irq=83) >> . >> . >> . >> ---------------------------------------------------------------- >> >> root@freescale ~$ ip link set can0 up type can bitrate 250000 >> root@freescale /usr/bin$ ip -d -s link show can0 >> 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 >> link/can >> can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 0 >> bitrate 250000 sample-point 0.875 >> tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 >> flexcan: tseg1 4..16 tseg2 2..8 sjw 1..4 brp 1..256 brp-inc 1 >> clock 24000000 >> re-started bus-errors arbit-lost error-warn error-pass bus-off >> 0 0 0 4 4 0 >> RX: bytes packets errors dropped overrun mcast >> 64 8 0 0 0 0 >> TX: bytes packets errors dropped carrier collsns >> 4 0 0 >> >> root@freescale ~$ cansend can0 123#1122334455 >> root@freescale /usr/bin$ ip -d -s link show can0 >> 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 >> link/can >> can state ERROR-PASSIVE (berr-counter tx 128 rx 0) restart-ms 0 >> bitrate 250000 sample-point 0.875 >> tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 >> flexcan: tseg1 4..16 tseg2 2..8 sjw 1..4 brp 1..256 brp-inc 1 >> clock 24000000 >> re-started bus-errors arbit-lost error-warn error-pass bus-off >> 0 0 0 5 5 0 >> RX: bytes packets errors dropped overrun mcast >> 80 10 0 0 0 0 >> TX: bytes packets errors dropped carrier collsns >> 5 0 0 0 0 0 >> root@freescale /usr/bin$ cat /proc/interrupts >> CPU0 >> 1: 1491 MXC_TZIC mxsdhci >> 2: 0 MXC_TZIC mxsdhci >> 6: 1 MXC_TZIC mxc_sdma >> 8: 2 MXC_TZIC mxc_nd >> 9: 0 MXC_TZIC VPU_CODEC_IRQ >> 10: 0 MXC_TZIC mxc_ipu >> 11: 2 MXC_TZIC mxc_ipu >> 12: 0 MXC_TZIC ydx >> 14: 0 MXC_TZIC usb_wakeup, ehci_hcd:usb2 >> 16: 0 MXC_TZIC usb_wakeup, ehci_hcd:usb3 >> 18: 0 MXC_TZIC usb_wakeup, fsl-usb2-otg, ehci_hcd:usb1, fsl-usb2-udc >> 24: 0 MXC_TZIC mxc_rtc >> 28: 0 MXC_TZIC ahci >> 31: 4093 MXC_TZIC mxcintuart >> 36: 1 MXC_TZIC CSPI_IRQ >> 39: 69290 MXC_TZIC i.MX Timer Tick >> 63: 198 MXC_TZIC imx-i2c >> 64: 60 MXC_TZIC imx-i2c >> 66: 0 MXC_TZIC asrc >> 69: 0 MXC_TZIC mxc_iim >> 73: 0 MXC_TZIC dvfs >> 82: 1283596 MXC_TZIC can0 >> 84: 0 MXC_TZIC g12 >> 129: 0 - mxsdhci >> 132: 0 - mxsdhci >> 191: 0 - eth0 >> Err: 0 >> root@freescale /usr/bin$ >> >> >> >> _______________________________________________ >> Socketcan-users mailing list >> Socketcan-users@lists.berlios.de >> https://lists.berlios.de/mailman/listinfo/socketcan-users > > _______________________________________________ > Socketcan-users mailing list > Socketcan-users@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/socketcan-users > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [Socketcan-users] Flexcan on i.mx536 Infotainment Platform 2012-06-15 5:51 ` Wolfgang Grandegger @ 2012-06-15 6:42 ` Wolfgang Grandegger 0 siblings, 0 replies; 5+ messages in thread From: Wolfgang Grandegger @ 2012-06-15 6:42 UTC (permalink / raw) To: Keith Jones; +Cc: Linux-CAN On 06/15/2012 07:51 AM, Wolfgang Grandegger wrote: > Hello, > > I forgot to switch to the new Linux-CAN mailing list... doing it now. I just realized that the message has already been discussed on this mailing list... sorry for the extra noise. Wolfgang. ^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <1338845698.76889.YahooMailNeo@web140802.mail.bf1.yahoo.com>
2012-06-04 21:52 ` [Socketcan-users] Flexcan on i.mx536 Infotainment Platform Marc Kleine-Budde
2012-06-04 21:55 ` Marc Kleine-Budde
2012-06-05 5:00 ` Keith Jones
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2012-06-15 5:51 ` Wolfgang Grandegger
2012-06-15 6:42 ` Wolfgang Grandegger
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