Red Pitaya not responding

[lene85]

Hello,

from one day to another, my RedPitaya stopped responding on both ethernet and usb. It has been on for less than 2 months now, and I have 3 others which are working just fine and some of them have been used for more than a year.

When I try to connect via ssh or http, the connection attempt times out. When I try to connect with a usb cable with putty, it says "Unable to open connection to COM8 Unable to open serial port". It says that independent of whether the RedPitaya is powered up or not, while another (working) RedPitaya lets me connect in either state on the same cable without problem.

However, the blue and green LED's are constantly on and the yellow one is blinking at roughly 1 Hz.

Does anyone have an idea what might be going on? I had the RedPitaya connected on the external trigger input pin, but never sent anything apart from 0 or 3.3 V, and it stopped working in the middle of a conversation through ssh for no obvious reason.

I also swapped the SD cards between this RedPitaya and a working one: The working one works with either SD card, the "broken" one with neigher one.

Thanks in advance for any help you can offer, Leo

[lene85]

I don't really know how but now the USB console started working, outputting the following info
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2015.09.08 17:05:09 =~=~=~=~=~=~=~=~=~=~=~=


U-Boot 2013.04 (Jun 04 2014 - 09:19:56)

I2C: ready
Memory: ECC disabled
DRAM: 512 MiB
WARNING: Caches not enabled
MMC: zynq_sdhci: 0
In: serial
Out: serial
Err: serial
Net: Gem.e000b000
Hit any key to stop autoboot: 3 2 1 0
Copying Linux from SD to RAM...
Device: zynq_sdhci
Manufacturer ID: 3
OEM: 5344
Name: SL16G
Tran Speed: 50000000
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: 14.8 GiB
Bus Width: 4-bit
reading uImage
3175064 bytes read in 588 ms (5.1 MiB/s)
reading devicetree.dtb
8457 bytes read in 18 ms (458 KiB/s)
reading uramdisk.image.gz
8017887 bytes read in 1458 ms (5.2 MiB/s)
## Booting kernel from Legacy Image at 03000000 ...
Image Name: Linux-3.9.0-xilinx
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3175000 Bytes = 3 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 02000000 ...
Image Name:
Image Type: ARM Linux RAMDisk Image (uncompressed)
Data Size: 8017823 Bytes = 7.6 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 02a00000
Booting using the fdt blob at 0x02a00000
Loading Kernel Image ... OK
OK
Loading Ramdisk to 1f3d1000, end 1fb7679f ... OK
Loading Device Tree to 1f3cb000, end 1f3d0108 ... OK

Starting kernel ...

console [ttyPS0] enabled, bootconsole disabled
e0001000.serial: ttyPS1 at MMIO 0xe0001000 (irq = 82) is a xuartps
xdevcfg f8007000.ps7-dev-cfg: ioremap f8007000 to e0864000 with size 100
brd: module loaded
loop: module loaded
xspips e0006000.ps7-spi: master is unqueued, this is deprecated
xspips e0006000.ps7-spi: at 0xE0006000 mapped to 0xE0866000, irq=58
xspips e0007000.ps7-spi: master is unqueued, this is deprecated
xspips e0007000.ps7-spi: at 0xE0007000 mapped to 0xE0868000, irq=81
xqspips e000d000.ps7-qspi: master is unqueued, this is deprecated
xqspips e000d000.ps7-qspi: at 0xE000D000 mapped to 0xE086A000, irq=51
e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-k
e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
libphy: XEMACPS mii bus: probed
xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
usbcore: registered new interface driver rtl8192cu
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ULPI transceiver vendor/product ID 0x0424/0x0007
Found SMSC USB3320 ULPI transceiver.
ULPI integrity check: passed.
xusbps-ehci xusbps-ehci.0: Xilinx PS USB EHCI Host Controller
xusbps-ehci xusbps-ehci.0: new USB bus registered, assigned bus number 1
xusbps-ehci xusbps-ehci.0: irq 53, io mem 0x00000000
xusbps-ehci xusbps-ehci.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
at24 0-0050: 8192 byte 24c64 EEPROM, writable, 32 bytes/write
at24 0-0051: 8192 byte 24c64 EEPROM, writable, 32 bytes/write
xi2cps e0004000.ps7-i2c: 400 kHz mmio e0004000 irq 57
zynq-edac f8006000.ps7-ddrc: ecc not enabled
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP: cubic registered
NET: Registered protocol family 17
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
Registering SWP/SWPB emulation handler
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
RAMDISK: gzip image found at block 0
mmc0: new high speed SDHC card at address aaaa
mmcblk0: mmc0:aaaa SL16G 14.8 GiB
mmcblk0: p1
uncompression error
List of all partitions:
b300 15558144 mmcblk0 driver: mmcblk
b301 15554048 mmcblk0p1 00000000-01
No filesystem could mount root, tried: ext3 ext2 ext4 vfat msdos
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
CPU0: stopping
[<c00143f0>] (unwind_backtrace+0x0/0x11c) from [<c0013244>] (ipi_cpu_stop+0x3c/0x6c)
[<c0013244>] (ipi_cpu_stop+0x3c/0x6c) from [<c00134e0>] (handle_IPI+0x60/0xa4)
[<c00134e0>] (handle_IPI+0x60/0xa4) from [<c00084e0>] (gic_handle_irq+0x58/0x60)
[<c00084e0>] (gic_handle_irq+0x58/0x60) from [<c000e140>] (__irq_svc+0x40/0x70)
Exception stack(0xc05cdf70 to 0xc05cdfb8)
df60: c061d5c8 a0000193 00000000 00000000
df80: c05cc000 c0426ce0 c05d43f4 c05c2ef0 c0a509c0 413fc090 00000000 00000000
dfa0: 00000000 c05cdfb8 c000f1b0 c000f1b4 60000113 ffffffff
[<c000e140>] (__irq_svc+0x40/0x70) from [<c000f1b4>] (cpu_idle+0xb4/0x100)
[<c000f1b4>] (cpu_idle+0xb4/0x100) from [<c05a17a4>] (start_kernel+0x29c/0x2ec)
[<c05a17a4>] (start_kernel+0x29c/0x2ec) from [<00008074>] (0x8074)

Booting Linux on physical CPU 0x0
Linux version 3.9.0-xilinx (build@medusa) (gcc version 4.7.3 (Sourcery CodeBench Lite 2013.05-40) ) #1 SMP PREEMPT Wed Jun 4 09:27:06 CEST 2014
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: Xilinx Zynq Platform, model: Xilinx Zynq
bootconsole [earlycon0] enabled
cma: CMA: reserved 16 MiB at 1e000000
Memory policy: ECC disabled, Data cache writealloc
On node 0 totalpages: 131072
free_area_init_node: node 0, pgdat c06154c0, node_mem_map c064c000
Normal zone: 1024 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 131072 pages, LIFO batch:31
PERCPU: Embedded 7 pages/cpu @c0a53000 s8000 r8192 d12480 u32768
pcpu-alloc: s8000 r8192 d12480 u32768 alloc=8*4096
pcpu-alloc: [0] 0 [0] 1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Kernel command line: console=ttyPS0,115200 root=/dev/ram rw earlyprintk
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
__ex_table already sorted, skipping sort
Memory: 512MB = 512MB total
Memory: 488960k/488960k available, 35328k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc05a01f0 (5729 kB)
.init : 0xc05a1000 - 0xc05cbf40 ( 172 kB)
.data : 0xc05cc000 - 0xc061d078 ( 325 kB)
.bss : 0xc061d078 - 0xc064b738 ( 186 kB)
Preemptible hierarchical RCU implementation.
Dump stacks of tasks blocking RCU-preempt GP.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
NR_IRQS:16 nr_irqs:16 16
xslcr mapped to e0802000
Zynq clock init
smp_twd: clock not found -2
sched_clock: 16 bits at 54kHz, resolution 18432ns, wraps every 1207ms
ps7-ttc #0 at e0804000, irq=43
Console: colour dummy device 80x30
Calibrating delay loop... 1332.01 BogoMIPS (lpj=6660096)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Calibrating local timer... 334.19MHz.
Setting up static identity map for 0xc0424020 - 0xc0424054
L310 cache controller enabled
l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72360000, Cache size: 524288 B
CPU1: Booted secondary processor
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
Brought up 2 CPUs
SMP: Total of 2 processors activated (2664.03 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
xgpiops e000a000.ps7-gpio: gpio at 0xe000a000 mapped to 0xe080c000
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
EDAC MC: Ver: 3.0.0
cfg80211: Calling CRDA to update world regulatory domain
Switching to clocksource ttc_clocksource
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
PCI: CLS 0 bytes, default 64
Trying to unpack rootfs image as initramfs...
rootfs image is not initramfs (uncompression error); looks like an initrd
Freeing initrd memory: 7828K
hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
msgmni has been set to 1002
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-267056
dma-pl330 f8003000.ps7-dma: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
e0000000.serial: ttyPS0 at MMIO 0xe0000000 (irq = 59) is a xuartps
console [ttyPS0] enabled, bootconsole disabled
e0001000.serial: ttyPS1 at MMIO 0xe0001000 (irq = 82) is a xuartps
xdevcfg f8007000.ps7-dev-cfg: ioremap f8007000 to e0864000 with size 100
brd: module loaded
loop: module loaded
xspips e0006000.ps7-spi: master is unqueued, this is deprecated
xspips e0006000.ps7-spi: at 0xE0006000 mapped to 0xE0866000, irq=58
xspips e0007000.ps7-spi: master is unqueued, this is deprecated
xspips e0007000.ps7-spi: at 0xE0007000 mapped to 0xE0868000, irq=81
xqspips e000d000.ps7-qspi: master is unqueued, this is deprecated
xqspips e000d000.ps7-qspi: at 0xE000D000 mapped to 0xE086A000, irq=51
e1000e: Intel(R) PRO/1000 Network Driver - 2.2.14-k
e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
libphy: XEMACPS mii bus: probed
xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
usbcore: registered new interface driver rtl8192cu
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-pci: EHCI PCI platform driver
ULPI transceiver vendor/product ID 0x0424/0x0007
Found SMSC USB3320 ULPI transceiver.
ULPI integrity check: passed.
xusbps-ehci xusbps-ehci.0: Xilinx PS USB EHCI Host Controller
xusbps-ehci xusbps-ehci.0: new USB bus registered, assigned bus number 1
xusbps-ehci xusbps-ehci.0: irq 53, io mem 0x00000000
xusbps-ehci xusbps-ehci.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
at24 0-0050: 8192 byte 24c64 EEPROM, writable, 32 bytes/write
at24 0-0051: 8192 byte 24c64 EEPROM, writable, 32 bytes/write
xi2cps e0004000.ps7-i2c: 400 kHz mmio e0004000 irq 57
zynq-edac f8006000.ps7-ddrc: ecc not enabled
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
TCP: cubic registered
NET: Registered protocol family 17
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
Registering SWP/SWPB emulation handler
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
RAMDISK: gzip image found at block 0
mmc0: new high speed SDHC card at address aaaa
mmcblk0: mmc0:aaaa SL16G 14.8 GiB
mmcblk0: p1
uncompression error
List of all partitions:
b300 15558144 mmcblk0 driver: mmcblk
b301 15554048 mmcblk0p1 00000000-01
No filesystem could mount root, tried: ext3 ext2 ext4 vfat msdos
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)
CPU0: stopping
[<c00143f0>] (unwind_backtrace+0x0/0x11c) from [<c0013244>] (ipi_cpu_stop+0x3c/0

It then repeats the output starting from "Booting linux..." an infinite number of times. What does this error mean?

[Nils Roos]

Hmm, the boot progresses normally until the "uncompression error" line, meaning the kernel image loaded and started succesfully but unpacking the ramdisk's contents failed, leaving the OS without a primary file system. Since you cross-tested the SD card with other Red Pitayas, I presume corruption of the ramdisk image is out of the question.

That leaves hardware problems as the next most probable cause. Some contributers on Xilinx forums link this error to faulty RAM, if only as a suggestion.