Bluewater Systems Support Forum

Snapper 9G20 SAM-BA (no replies)

Stephen — Mon, 13 Dec 2010 17:59:32 -0700

Hi,

Is there a way to make SAM-BA or samba-script work with Snapper 9G20?
Other than samba-script, is the Squid micro-debugger is only other way to recover a bricked device?

Migrating from Snapper9260 to Snapper9G20 (8 replies)

Stephen — Sun, 12 Dec 2010 17:06:59 -0700

Hi,

I'm migrating from Snapper9260 to Snapper9G20. From the 2.6.29 kernel board-snapper9260.c file, it appears that Snapper9260 has 128k flash erase block size while Snapper9G20 has 256k flash erase block size. What are the implications of this change?

In order to support both the Snapper9G20 and the older Snapper9260 with 128k erase block size, I need to program a new bootstrap (preboot) that looks for u-boot at address 0x40000 instead of 0x20000?

Do I also need a new u-boot that looks for u-boot environment variables at address 0x80000 instead of 0x60000?

Cannot debug from Eclipse with Snapper 2.6.29 kernel (2 replies)

alastair — Wed, 27 Oct 2010 22:11:55 -0600

Hi! I'm developing on a Snapper 9260 QSK using the Sourcery G++ Lite 2007q3 tools within Eclipse Helios (build ID 20100617-1415) on Windows XP, connected to the Snapper by Ethernet. When the Snapper is running its Linux kernel 2.6.20 the development environment works well: I can run and debug programs on the Snapper from Eclipse. When the Snapper is running the 2.6.29 kernel, running programs from Eclipse works OK but any attempt to debug a program from Eclipse fails immediately. N.B. running programs uses SSH, debugging programs uses gdbserver.

a) A dialog box pops up "Problem Occurred. An error has occurred. See error log for more details. java.lang.NullPointerException".

b) The debug pane in Eclipse includes the following interesting things.

  gdbserver debugger  (Suspended)
    Thread (1) (Suspended: Signal 'SIGILL' received. Description: Illegal instruction.)
      1 main() \spidev_test.c 150 0x0008864

Have you seen this trouble before? Do you have any tips for getting the Eclipse source debugger to work with the 2.6.29 kernel?

Thanks,
Alastair

Enabling Snapper peripheral support in 2.6.29 kernel (10 replies)

alastair — Wed, 21 Sep 2011 22:13:44 -0600

What steps are needed to enable support in the 2.6.29 kernel build for Snapper's I/O expander and SPI bus controller? I've been experimenting with the menuconfig and have got the AT91 ADC driver working, but not the I/O expander support or spidev.

Thanks,
Alastair

Gpiolib implementation questions (11 replies)

alastair — Wed, 22 Sep 2010 15:09:47 -0600

I have been programming directly to the Snapper 9260's GPIO ports, using the gpiotool and gpiolib source code as an example for accessing the Snapper I/O expander. I have encountered some erratic behaviour when writing to the I/O expander, but only when running my code directly from Eclipse on a Windows PC - when run from a command shell on the Snapper the code works OK. Because of this I wonder whether using the MAX7311 and the kernel's I2C driver has subtle aspects. Hence a couple of questions about the gpiolib source code.

1. In lgpio_i2c_open_device(), the adapter functionality is read but never used. Is this just obsolete code left behind by history?

2. Before every operation on the MAX7311, the functions in max7311.c (e.g. lgpio_max7311_set_value()) clear the MAX7311's polarity inversion registers. Why is this?

Thanks,
Alastair

Kernel binary with ADC support for Snapper 9260 (16 replies)

alastair — Wed, 20 Oct 2010 20:55:11 -0600

Do you have a prebuilt kernel binary for the Snapper 9260 with the ADC driver enabled? The kernel I have at the moment, "Linux snapper 2.6.20-snapper #1 Wed Sep 8 19:58:36 NZST 2010 armv5tejl unknown" (downloaded from your website today), appears not to provide the /sys/devices/platform/at91_adc/adc* device nodes mentioned in the Snapper 9260 datasheet.

Thanks,
Alastair

Some PIOs are brought out to two Snapper pins (1 reply)

alastair — Thu, 02 Sep 2010 00:50:31 -0600

The Snapper 9260 datasheet and the QSK schematic indicate that each of the PIO signals PB22 to PB29 are brought out to two pins on the Snapper SODIMM connector, named for the two peripheral signals that are multiplexed with each PIO inside the CPU. For example, PB22 is brought out to both pin 49 and pin 73.

Are these pairs of pins on the Snapper electrically connected to each other, or is there additional logic on the Snapper that gives them different behaviour?

Thanks,
Alastair

User-space access to CPU peripherals (2 replies)

alastair — Thu, 26 Aug 2010 20:35:19 -0600

I wish to write user-space programs on the Snapper 9260 (running Linux 2.6.20) that can read and write the CPU's PIO bits, ADCs, UARTs, and SPI controller. For the PIO access we want to be able to write several bits simultaneously since we are using groups of PIO lines as address buses to external peripherals.

What ways do you recommend to do this?

"Block is bad" messages during boot (1 reply)

alastair — Thu, 26 Aug 2010 20:13:11 -0600

Hello, I have just started developing for Snapper 9260 and have some newbie questions to ask. Here's the first of them.

When my Snapper 9260 Quick Start Kit starts up, the boot messages on the console terminal include warnings about bad blocks as shown below.

> ...
> yaffs: dev is 32505860 name is "mtdblock4"
> yaffs: passed flags ""
> yaffs: Attempting MTD mount on 31.4, "mtdblock4"
> yaffs: auto selecting yaffs2
> block 34 is bad
> block 137 is bad
> block 366 is bad
> block 367 is bad
> block 494 is bad
> block 633 is bad
> block 681 is bad
> block 682 is bad
> block 691 is bad
> block 986 is bad
> block 1043 is bad
> block 1348 is bad
> block 1444 is bad
> block 1767 is bad
> block 1768 is bad
> block 1769 is bad
> block 1770 is bad
> block 1948 is bad
> 18 bad blocks total
> eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
> VFS: Mounted root (yaffs filesystem).
> ...

Are these messages normal or a cause for concern? The file system apparently works OK.

Thanks

Snapper 9G45 (no replies)

andre — Tue, 10 Aug 2010 16:42:28 -0600

Hello all,
We have recently completed our new Snapper 9G45 system module. This features the AT91SAM9G45 CPU, along with 1GB of RAM, and 128 MB of DDR2 memory, along with a whole host of features.

Full details can be found here:
[www.designarm.com]

Andre Renaud

I2C Voltage Level Problem: < 2.0V (17 replies)

pteh — Thu, 06 May 2010 21:36:39 -0600

Hi,

I'm running into a problem with physical I2C voltage level.

See the following scenarios. I'm using QSK9260.

Scenario 1:
1. Power Cycle
2. Boot from NAND
3. I2C pins during boot-up reads < 2.0V
4. Soon, still during boot-up, it bumps back to 3.3V (NOTE: sometimes it stays < 2.0V)
5. Once it reached 3.3V, issuing reboot in shell login, issuing reset in u-boot prompt and pressing reset switch on QSK board, I2C voltage level always read 3.3V. I won't see point 3 above
6. If power cycle again, it goes back to point 3

Scenario 2:
1. Power Cycle
2. Enter U-Boot prompt
3. Boot from NFS Server
4. I2C Voltage Level always read < 2.0V
5. Issuing reboot in shell login, issuing reset in u-boot prompt and pressing reset switch on QSK board, I2C voltage level always read < 2.0V
6. Power Cycle and repeat from point 2 above doesn't help

Is there something going on during NAND boot? Can you please tell me if there is a GPIO pin/register in Snapper 9260 that needs to be set during boot-up to bring I2C voltage level to 3.3V?

There is no data transmitted on the above scenarios.

Regards,

pteh

How to enable watchdog (3 replies)

Stephen — Thu, 09 Dec 2010 04:41:19 -0700

Hello,

How can I enable watchdog?

In Linux, I get this:
AT91SAM9 Watchdog: sorry, watchdog is disabled

X Windows and VNC Server (1 reply)

mylesdw — Mon, 29 Mar 2010 18:18:00 -0600

I'm trying to get a X and a VNC server running on our 9260 without much success. Do you folk have any binaries or some instructions?

Any help would be very welcome

Thanks

Win CE 6.0 (1 reply)

vinoth006 — Wed, 24 Mar 2010 14:16:06 -0600

hello sir,,

I am new to win CE i want to make a driver control in win ce 6.0 for the LCD controller.Could you please help me how to write the code in visual studio 2005.

Thank You
Vinoth.

Run UBI on NAND flash (3 replies)

Stephen — Mon, 29 Mar 2010 18:16:59 -0600

Hello,

Is it possible to run UBI on the entire NAND flash (mtd device), then have the bootloader, kernel, and root filesystem running on top of UBI?

Or even run UBI on a partition of the NAND flash?

Thanks.

U-boot flash partitions (2 replies)

Stephen — Wed, 17 Mar 2010 21:35:03 -0600

Hello,

With the U-Boot bootloader that is preloaded on Snapper 9260 board, how do I list all partitions that are on flash? Is there a way to split the filesystem partition into multiple partitions from u-boot?

Thanks.

oprofile on Snapper 9260 (no replies)

IGW — Tue, 09 Mar 2010 18:18:58 -0700

Hi all,

I have looked (a bit) into running oprofile (profiling package) on the Snapper 9260. It is not going all that smoothly for me. I have found the right (I think) menuconfig options to enable to get the oprofile driver in the kernel. The problem is making sure I have got the right libraries and letting the oprofile configure script know this.

Are there any instructions for getting oprofile (and any required libs) on the Snapper 9260? (Under the 2.6.29 kernel in my case.)

Would this be a useful package to have available in the Bluewater repository for ipkg-cl to access?

Thanks,
Ian

MAC Address unique for all Snapper 9260 modules? (1 reply)

pteh — Tue, 02 Mar 2010 17:52:38 -0700

Hi,

Is the MAC address assigned in Snapper 9260 unique for all Snapper modules? i.e. Can I safely assume I will not find two Snapper 9260 modules having the same MAC address coming out from manufacturer when I order in quantity?

Regards,

pteh

update-alternatives: not found (1 reply)

pteh — Tue, 09 Mar 2010 19:48:17 -0700

Hi there,

I've been trying to install either openssh or dropbear but always fail during post installation.

Both post installation script requires: update-alternatives command which I couldn't find it anywhere in the system and [www.bluewatersys.com].

The following is the copy of the installation process:

root@snapper:~$ ipkg-cl install openssh
Installing openssh (4.6p1-r6) to root...
Downloading [www.bluewatersys.com]
Installing openssh-scp (4.6p1-r6) to root...
Downloading [www.bluewatersys.com]
Installing libcrypto0.9.8 (0.9.8j-r1) to root...
Downloading [www.bluewatersys.com]
Installing libz1 (1.2.3-r5) to root...
Downloading [www.bluewatersys.com]
Installing openssh-ssh (4.6p1-r6) to root...
Downloading [www.bluewatersys.com]
Installing openssh-sshd (4.6p1-r6) to root...
Downloading [www.bluewatersys.com]
Installing ssh-keygen (4.6p1-r6) to root...
Downloading [www.bluewatersys.com]
Configuring libcrypto0.9.8
postinst script returned status 1
ERROR: libcrypto0.9.8.postinst returned 1
Configuring libz1
postinst script returned status 1
ERROR: libz1.postinst returned 1
Configuring openssh
Configuring openssh-scp
//usr/lib/ipkg/info/openssh-scp.postinst: line 1: update-alternatives: not found
postinst script returned status 127
ERROR: openssh-scp.postinst returned 127
Configuring openssh-ssh
//usr/lib/ipkg/info/openssh-ssh.postinst: line 1: update-alternatives: not found
postinst script returned status 127
ERROR: openssh-ssh.postinst returned 127
Configuring openssh-sshd
adduser: unrecognized option '--system'
BusyBox v1.10.1 (2009-02-03 10:35:41 NZDT) multi-call binary

Usage: adduser [OPTIONS] user_name

Add an user

Options:
        -h DIR          Home directory
        -g GECOS        GECOS field
        -s SHELL        Login shell
        -G GROUP        Add user to existing group
        -S              Create a system user
        -D              Do not assign a password
        -H              Do not create home directory

 Adding system startup for /etc/init.d/sshd.
Configuring ssh-keygen
Successfully terminated.
root@snapper:~$

Can anyone help me to get sshd installed and running?

Regards,

pteh

DHCP (4 replies)

mylesdw — Wed, 17 Feb 2010 14:37:30 -0700

Can you point me in the direction of some instructions for getting an IP by DHCP during a 'normal' BOOTD of a Snapper 9260. I just want the IP without all the other dhcp_boot stuff.

I tried adding ip=any to the boot_args but this does not quite work...

Thanks
Myles

Google Android (1 reply)

mylesdw — Tue, 16 Feb 2010 19:55:42 -0700

Hi folks,

just wondered whether you have had Google Android running on a Snapper 9260

Cheers
Myles

initialize SD card after boot - sort of hot plug (2 replies)

IGW — Fri, 12 Mar 2010 19:09:30 -0700

Hi all,

SD card works fin on my '9260 (2.6.29 kernel) if the card is plugged in an power to the SD card slot is enabled at boot. However, our app wants to be able to control the power to the SD slot - using simple p-channel switch.

I can't figure out, though, how I can get the card initialized after enabling power so I can mount it. dmesg reports:
mmc0: error -110 whilst initializing SD card
this is not surprising.

What I want to know is how I can subsequently force linux to rescan the slot and initialize the card after we enable power?

Thanks,
Ian

OSS emulation "asoc: machine hw_params failed" (no replies)

nathanaelg — Thu, 10 Dec 2009 13:00:56 -0700

I am trying to get the VoIP framework sipXtapi running on a snapper 9260 but it requires OSS audio. I recompiled the 2.6.29 kernel after adding in OSS emulation using make menuconfig and then created /dev/dsp but when I try and play audio using OSS (e.g. using madplay) I get:

error: frame 0: lost synchronization
output: ioctl(SNDCTL_DSP_SPEED): Device or resource busy

and dmesg shows:
asoc: machine hw_params failed

Any ideas as to what is causing this and how to fix it?
Nathanael
nathanael.gray@tait.co.nz

Upgrade alsa in kernel (no replies)

nathanaelg — Tue, 08 Dec 2009 17:55:03 -0700

I am wanting to upgrade Alsa to 1.0.21 (from 1.0.18a in your latest kernel) to be able to use more sample rates for the tlv320aic23. Is this possible using the alsa-driver from [www.alsa-project.org] How would I go about doing this?

Audio not playing correctly at sampling rates other than 44.1kHz (no replies)

nathanaelg — Wed, 02 Dec 2009 21:19:05 -0700

I have been unable to get aplay to play audio correctly at sampling rates other than 44.1kHz. For some reason at 8kHz, 32kHz, 48kHz the audio is played faster than it should be. Is this likely to be a limitation of the driver in the kernel or something else to do with my setup?

Advanced Linux Sound Architecture Driver Version 1.0.14rc1 (Tue Jan 09 09:56:17 2007 UTC).
ASoC version 0.13.1
AIC23 Audio Codec 0.1
tlv320aic23_codec_probe
asoc: tlv320aic23 <-> at91-ssc0 mapping ok
sn9260: Codec in Master Mode
ALSA device list:
#0: sn9260_tlv320 (tlv320aic23)

Ipkg postinst script returned status 1 (1 reply)

nathanaelg — Thu, 26 Nov 2009 14:57:40 -0700

I have been having issues installing some of the packages from the bluewatersys repository, for instance while following the instructions to install audio, the following error message is given:

Configuring libasound2
postinst script returned status 1
ERROR: libasound2.postinst returned 1
Configuring ncurses
postinst script returned status 1
ERROR: ncurses.postinst returned 1
Successfully terminated.

When installing ppp, libpcap0.9 also gave the same error. Why is this likely to be?

Tweaking time slice (2 replies)

IGW — Tue, 27 Oct 2009 14:47:42 -0600

Hi all,

It seems that the stock kernel on the Snapper 9260 has a basic time slice of 100 ms:
#define DEF_TIMESLICE (100 * HZ / 1000)

Will I get myself into a lot of pain if I reduce this to 10 ms?

I have some external buffering in some hardware that only provides about 100 ms of buffering. I guess I could run it as an interrupt, but I am keen to know if I can get an adequate result by tweaking the timeslice to 10 ms at least for the current development phase.

Thanks,
Ian

bluetooth pairing problem (24 replies)

Henry — Thu, 22 Oct 2009 16:28:04 -0600

Hi,

All the configuration of Bluetooth on snapper has been set properly, however, pairing is always failed when any other bluetooth devices request a pin from snapper. The snapper can't response to any request at all.

i think the problem can be seen from "/etc/bluetooth/main.conf" and D-bus as shown below, but I don't know how to fix it

root@snapper:$ hcid -n
hcid[702]: Bluetooth HCI daemon
hcid[702]: Parsing /etc/bluetooth/main.conf failed: No such file or directory
hcid[702]: Unable to get on D-Bus

And this is my /etc/bluetooth/hcid.conf file, which I can't see any problem

root@snapper:~$ cat /etc/bluetooth/hcid.conf
#
# HCI daemon configuration file.
#

# HCId options
options {
# Automatically initialize new devices
autoinit yes;

# Security Manager mode
# none - Security manager disabled
# auto - Use local PIN for incoming connections
# user - Always ask user for a PIN
#
security user;

# Pairing mode
# none - Pairing disabled
# multi - Allow pairing with already paired devices
# once - Pair once and deny successive attempts
pairing multi;

# Default PIN code for incoming connections
passkey "1234";
}

# Default settings for HCI devices
device {
# Local device name
# %d - device id
# %h - host name
name "%h (%d)";

# Local device class
class 0x120112;

# Default packet type
#pkt_type DH1,DM1,HV1;

# Inquiry and Page scan
iscan enable;
pscan enable;

# Default link mode
# none - no specific policy
# accept - always accept incoming connections
# master - become master on incoming connections,
# deny role switch on outgoing connections
lm accept;

# Default link policy
# none - no specific policy
# rswitch - allow role switch
# hold - allow hold mode
# sniff - allow sniff mode
# park - allow park mode
lp rswitch,hold,sniff,park;

}

And this is the /etc/init.d/bluetooth file, which I think may be of some problem

root@snapper:~$ cat /etc/init.d/bluetooth
#!/bin/sh
#
# Start/stop the Bluetooth daemons
#

set -e

PATH=/sbin:/bin:/usr/sbin:/usr/bin
NAME=bluetooth
DESC="Bluetooth subsystem"

DAEMON_NAME=hcid
HID2HCI_NAME=hid2hci

DAEMON_EXEC="`which $DAEMON_NAME || true`"
HID2HCI_EXEC="`which $HID2HCI_NAME || true`"

DAEMON_ENABLE=true
HID2HCI_ENABLE=false

DAEMON_CONFIG="/etc/bluetooth/hcid.conf"

[ -e /etc/default/bluetooth ] && . /etc/default/bluetooth

case "$1" in
start)
echo -n "Starting $DESC:"
if $DAEMON_ENABLE && [ -x "$DAEMON_EXEC" ] && [ -f "$DAEMON_CONFIG" ] ; then
$DAEMON_EXEC -s -f $DAEMON_CONFIG
echo -n " $DAEMON_NAME"
fi
if $HID2HCI_ENABLE && [ -x "$HID2HCI_EXEC" ] ; then
$HID2HCI_EXEC --tohci > /dev/null 2>&1 || true
echo -n " $HID2HCI_NAME"
fi
echo "."
;;
stop)
echo -n "Stopping $DESC:"
killall $DAEMON_NAME > /dev/null 2>&1 || true
echo -n " $DAEMON_NAME"
echo "."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop}" >&2
exit 1
;;
esac

exit 0

Thanks

Linux kernel recompiling to include USB-serial convertion (no replies)

henry — Sun, 18 Oct 2009 21:59:34 -0600

The option "USB Serial Converter support" has and I tried to include it by type "Y", however, the same message appears

"This feature depends on another which has been configured as
module. As a result, this feature will be configured as a module"

I am putting this question on forum soon

Thanks
- Hide quoted text -

On Mon, Oct 19, 2009 at 4:50 PM, Andre Renaud wrote:

Henry,
Try turning on the "USB Serial Converter support" option near the top of
that menu.

Can I ask you to post these questions to the forum from now on? That way
the posts can be vetted by other members of our support team, as well as
benefit other customers.

Regards,
Andre

Henry Xin Zhang wrote:
> Andre
>
> The option 'USB Prolific 2303 Single Port Serial Driver' has a symbol
> '', and I type 'Y' to include it. However, a message appeared said
> that "This feature depends on another which has been configured as
> module. As a result, this feature will be configured as a module"
>
> Is it correct? How should i proceed?
>
> Thanks
>
>
> On Mon, Oct 19, 2009 at 4:21 PM, Andre Renaud > > wrote:
>
> Have a look at [www.bluewatersys.com].
> However you will want to use 'snappercl15_defconfig', and then before
> doing the make uImage, you should run make menuconfig, and turn on the
> USB option. This will be under 'Device Drivers/USB Support/USB Serial
> Converter support/USB Prolific 2303 Single Port Serial Driver'.
>
> Andre
>
> Henry Xin Zhang wrote:
> > The linux kernel was the one you sent to me last week in our email on
> > how to set up the NFS server and update root file system.
> >
> > Can you indicate how to recompile the kernel?
> >
> > Thanks
> >
> > On Mon, Oct 19, 2009 at 2:09 PM, Andre Renaud
>
> > >>
> wrote:
> >
> > Henry,
> >
> > It would appear that you don't have pl2303 serial driver built
> into your
> > kernel. This is not enabled in our default setup. I would
> recommend you
> > rebuild your Linux kernel uImage, and make sure that
> > CONFIG_USB_SERIAL_PL2303 is turned on.
> >
> > Regards,
> > Andre

Missing /proc/snapper and /proc/gpio (6 replies)

IGW — Thu, 11 Feb 2010 17:41:28 -0700

I assume I have done something wrong or I have missed some vital step that Linux gurus would all know by heart.

I was trying to disable the Ethernet for a 9260 using the instructions in the FAQ.

echo eth_power disable > /proc/snapper/power_domain

just gives:
-sh: cannot create /proc/snapper/power_domain: nonexistent directory

There is no ..../snapper or .../gpio in /proc.

I assume I have not updated the root file systems in the correct manner.

Are there any instructions for using the root file system builder? I gave it a go by running the python scripts and then trying to figure out the options. No success. Some brief guidance would be appreciated.

Thanks,
Ian