2011/1/14 Wolfgang Grandegger <[email protected]> > On 01/14/2011 12:57 AM, Willy Lambert wrote: > > 2011/1/13 Willy Lambert <[email protected]> > ... > > I am stuck with the test case setup, candump shows error messages when I > try > > a cansend. I already have tricks with extended or standard data frame > > formats with Ixxat drivers. My motors seems to only accept standard > frames. > > Is there a way to configure this ? > > > > I booted my target with Ixxat driver and run my test cases to validate > > everything is in order. (BIOS options, jumpers, IRQ, wiring). I only use > one > > controller on IRQ11 (as it is said as "reserved" in my CPU board IRQ > > mapping) > > I may run my motor and receive SDO from him, everything seems to be OK. > > The hardware seem to work. That's a good starting point. > > > Without changing anything except my init script which load can drivers > (in > > order to load socket can drivers instead of Ixxat ones), I rebooted my > CPU. > > > > Here is the load script : > > > >> modprobe sja1000_isa irq=11 mem=0xD0000 > >> ip link set can0 type can bitrate 250000 restart-ms 1000 > >> ifconfig can0 up > >> > > > > Here is dmesg answer (which seems correc) : > > > >> [ 3.928467] sja1000_isa sja1000_isa.0: sja1000_isa device registered > >> (reg_base=0xc00d0000, irq=11) > >> [ 3.928646] Legacy sja1000_isa driver for max. 8 devices registered > >> [ 3.938877] sja1000_isa sja1000_isa.0: setting BTR0=0x01 BTR1=0x1c > >> > > > > Here is ifconfig result : > > > >> can0 Link encap:UNSPEC HWaddr > >> 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 > >> UP RUNNING NOARP MTU:16 Metric:1 > >> RX packets:2 errors:0 dropped:0 overruns:0 frame:0 > >> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > >> collisions:0 lg file transmission:10 > >> RX bytes:16 (16.0 B) TX bytes:0 (0.0 B) > >> Interruption:11 > >> > > > > Here is /proc/iomem > > > >> 00000000-00000fff : reserved > >> 00001000-0009fbff : System RAM > >> 0009fc00-0009ffff : reserved > >> 000a0000-000bffff : Video RAM area > >> 000c0000-000c7fff : Video ROM > >> 000d0000-000d001f : sja1000_isa > >> ... > >> > > > > Here is /proc/interrupts > > > >> CPU0 > >> 0: 215 IO-APIC-edge timer > >> 1: 8 IO-APIC-edge i8042 > >> 2: 0 XT-PIC-XT cascade > >> 8: 97 IO-APIC-edge rtc0 > >> 11: 1 IO-APIC-edge can0 > >> 12: 7 IO-APIC-edge i8042 > >> 14: 0 IO-APIC-edge ata_piix > >> 15: 1017 IO-APIC-edge ata_piix > >> 19: 0 IO-APIC-fasteoi uhci_hcd:usb3 > >> 23: 14 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2 > >> 40: 411 PCI-MSI-edge eth0 > >> NMI: 0 Non-maskable interrupts > >> LOC: 293000 Local timer interrupts > >> SPU: 0 Spurious interrupts > >> PMI: 0 Performance monitoring interrupts > >> PND: 0 Performance pending work > >> TRM: 0 Thermal event interrupts > >> THR: 0 Threshold APIC interrupts > >> MCE: 0 Machine check exceptions > >> MCP: 1 Machine check polls > >> ERR: 0 > >> MIS: 0 > >> > > > > I write this command to wake up everybody : > > > >> ./cansend can0 000#0100 > >> > > > > And at the same time, in another terminal, I run candump with theses > results > > : > > > >> ./candump any,0:0,#FFFFFFFF > >> can0 20000040 [8] 00 00 00 00 00 00 00 00 ERRORFRAME > >> can0 20000100 [8] 00 00 00 00 00 00 00 00 ERRORFRAME > >> can0 20000004 [8] 00 04 00 00 00 00 00 71 ERRORFRAME > >> can0 20000004 [8] 00 10 00 00 00 00 00 81 ERRORFRAME > > The controller goes bus-off.
May I ask you how you decode the candump ERRORFRAME ? does the 20000040/20000100/20000004 makes sens ? What the date behind ? > There are still some electrical problems. > Ok, BUT, I works before rebooting ! > Next try to specific proper values for cdr and ocr: > > modprobe sja1000_isa irq=11 mem=0xD0000 ocr=0x5e,0x5e > > and then > > modprobe sja1000_isa irq=11 mem=0xD0000 ocr=0x5e,0x5e cdr=0,0 > > I'll do it this afternoon > As you know, there might still be the magic controller reset missing. > I forgot this, do you whant me to try a patch against this ? > > Good luck. >
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