Tagged with tegra - NVIDIA Developer Forums

Flashing L4T on cardhu dev tablet

madmaze — Wed, 28 Mar 2012 12:57:40 -0400

I have the latest version of the Linux for Tegra development kit,
I am stuck on flashing the dev tablet with the new kernel/bootloader.

The documentation says the following:

You must first put the target board into reset/recovery mode. Do so by first powering 
on the board and then holding the recovery button and pressing the reset button.

When i power on the tablet it announces:


...
Checking for RCK.. press key  in 5 sec to enter RCK
OS will cold boot in 10 seconds if no input is detected
Press  to select,  for selection move

(options are USB and Android)

if i press Vol- when the RCK message pops up it gives me a distorted screen with an android exclamation mark in it. Then no other input it possible, not even turning it off.

if i select to boot USB then it claims "Starting Fastboot USB download protocol"
If at this point I execute flash.sh it will hang after "Nvflash started"

any suggestions on what I could/should try?
Is there a way to get debug output from NVFLASH about where its stuck?

Thanks,

Matthias

Booting device from internal eMMC drive aka mmcblk0p5

PouryaShirazian1 — Tue, 15 May 2012 18:50:07 -0400

Sorry if my question is already posted somewhere in ther forum. I have successfully booted the device from a prepared USB drive and now want to flash the device to be able to boot from its internal eMMC memory drive. How can I do this properly?

The error that I receive is:

file not found: bootloader/system.img
failed executing command 2147483647 NvError 0x4
command failure: create failed
Failed to flash cardhu.

Thanks

New libs

giveen — Mon, 14 May 2012 17:01:38 -0400

Are the libs inside /system/lib of the Ventana ICS image newly made or are they a hangover from Honeycomb.

rootfs tegra3 package

tankcr — Sat, 12 May 2012 07:03:05 -0400

Hi all, I am trying to build a Ubuntu for the TFP but I was wondering if there is a prebuilt rootfs package for the tegra3, and if not does anyone have any suggestions for building one?

UI Composer studio

gandlaf — Mon, 14 May 2012 07:52:59 -0400

I started with the T20 Colibri board my development. As a part of the Demos software I found the UI Composer Demo. Now I am questioning from where I can get the UI Composer studio.
Thanks

Tegra Android Development Pack 1.0r6 Available

Stephen Jones — Fri, 20 Apr 2012 16:02:49 -0400

Hey Tegra Android Developers! At NVIDIA, we're always trying to simplify the Android development experience. The more apps you develop, the happier we are. The Tegra Android Development Pack makes it easy for you to setup and maintain an Android development environment.

This update to TADP includes support for Android SDK r18 and Android NDK r7c. This update to the NDK is significant for Tegra Android developers in that it includes an important fix for Tegra2-based devices, as well as a few additional fixes and improvements.

Android NDK r7b was not configured properly, resulting in crashes on non-NEON devices such as Tegra2-based devices, when trying to use certain floating-point functions (e.g., cosf, sinf, expf).

The latest version of the Tegra Android Development Pack is available here. To provide feedback, request additional features or report support issues, just reply to this post!

input devices for Tegra 3 with Linux

compose — Fri, 11 May 2012 11:15:54 -0400

I flashed the Linux kernel and the sample file system provided to the Tegra 3 board. The operating system booted and the login prompt showed. However, I have no idea how to type in it. The connection with an USB keyboard does not work. With only the HDMI port provided I don't know whether I can use minicom through the serial cable. I guess probably I need to re-compile the kernel to add the drivers of USB and HDMI. Does anyone have experience on this? Thank you.

Optimal vertex attribute formats for Tegra2/3?

clb — Thu, 10 May 2012 12:26:39 -0400

Hi,

I am trying to figure out what would be the most optimal vertex format to use for my vertex data. Does there exist somewhere a guide/tips on how to lay out data for best performance?

I am mostly comparing the performance guidelines to ones published for iOS ( http://developer.apple.com/library/ios/documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/OpenGLES_ProgrammingGuide.pdf , page 65+), since I cannot find a similar document for Tegra2/3. Do such guidelines exist somewhere?

Specific questions:
- Does GL_FIXED carry a penalty as opposed to GL_FLOAT? Should I always use GL_FLOAT instead of GL_FIXED?
- Is there a performance difference on the order of laying out data with different semantics inside a single vertex. E.g. having pos/normal/uv versus pos/uv/normal, and loading them in different orders in the shaders. The iOS guide lists a preferred order, do similar rules apply here?
- Is there a performance hit if GL_UNSIGNED_BYTE data is not aligned to two bytes? or four bytes?
- Is there a performance hit if GL_UNSIGNED_SHORT data is not aligned to two bytes? or four bytes? iOS guides mention a performance hit if GL_UNSIGNED_SHORT is not aligned to four bytes, and suggests adding two bytes of padding. How about Tegra2/3?
- Is there a performance hit if GL_FLOAT data is not aligned to four bytes?
- Is it faster to pack vertex data fields inside a same attribute? E.g. with two sets of 2D UV coordinates, should I pack them into a single 4D {uv0.x uv0.y uv1.x uv1.y} attribute and separate in the shader?

What kind of other tips would you recommend? I am currently packing as much of my data into GL_UNSIGNED_BYTEs as possible, and am now worried about the misalignment of some data fields it causes.

If nothing else, I'll probably run some profiling to investigate this, but if people have done this already, would be great to hear the results.

Other related questions:
- Is there any practical difference between GL_DYNAMIC_DRAW and GL_STREAM_DRAW in the Tegra2/3 drivers? I am currently doing double-buffered (swapping between two created VB objects each frame) updates to a GL_STREAM_DRAW vertex buffer for my particles. Should I be double-buffering myself, or are the Tegra2/3 drivers already double-buffering/optimizing for me for per-frame updates if I specify GL_STREAM_DRAW?
- Do Tegra2/3 support Vertex Array Objects?

Thanks for the help!

Is 1080p HDMI output possible on Tegra3?

clb — Thu, 10 May 2012 05:24:48 -0400

Hi,

I am investigating the different options that are possible when using a HDMI link to an external display. Looking at how it currently works, it seems that the main display is always mirrored to the HDMI display, giving a 1280x800 res. This is quite surprising, since the Asus Transformer Prime adverts claim it to be able to play back 1080p video on HDMI. What gives?

I'm now pondering whether any of the following scenarios are possible:
- Extend/separate display mode. Use Prime screen as 1280x800 display and use the other display as an extended monitor in 1920x1080 or 1920x1200 mode, whatever is the max. res for that display. Can I simultaneously render different content to both displays using GLES2? This would give full control and support to specify what content is displayed on which screen.
- Turn off the small 1280x800 display, only use the large external 1920x1080 display. Render natively to the 1920x1080 display without upscaling from a smaller resolution. Is this possible? I notice that Shadowgun is not doing this at least, but the game is played in 1280x800 res on the HDMI display, which the monitor stretches to fit the screen.

If neither of these scenarios are doable, do you know if that is only due to software limitations, or are there potentially some hardware restrictions that will limit Tegra3 to always mirroring a single max. 1280x800 display?

Thanks for any help!

How to access NV_ OpenGL ES extension for stereoscopic output?

dsewtz — Tue, 24 Jan 2012 06:41:49 -0500

I would be very much interested in a documentation on how to access the opengl es extension for stereoscopic output. I assume it's NV_MULTIVIEW_DRAW_BUFFERS ?
(As seen on the CES: Attached Asus Transformer Prime through HDMI1.4 to 3DMonitor)

Tegra VI/CSI interface

Jens Andersen — Sat, 31 Dec 2011 07:49:13 -0500

Hi,
I am attempting to get a camera working on a tegra board.
The camera is connected through the Tegra-isp port, using Parallel 8-bit VI interface.
I am looking to use the CHROMIUM provided V4L2 interface, but this is not really relevant to my query.

I have the public TRM, but this only seems to document the serial CSI interface and a LOT of registers are missing.
I've attached a list of all the registers mentioned by the V4L2 driver, and comparing that to the documentation available, not even all the CSI registers are documented.

I have also verified that this information is not available in the private TRM through third-party contacts.

Is it possible to get any kind of documentation on these VI registers? It doesn't appear to me like this is something that is required to be kept secret, but I understand that it doesn't appear to be properly documented at the moment, so even sparse documentation with just possible values would be a huge help!

Tegra4Linux?

savalik — Thu, 03 May 2012 12:03:05 -0400

Tegra2 was submitted in January 2010. Now in 2012.
In the summer of 2011 I bought a toshiba ac100. The first thing I did - removed the android.
Since then, every day I'm waiting for stable drivers, and normal multimedia software(with openmax and openGL ES support). Why Mali's users enjoy the rainbow until we cry?

Tegra for Linux bugs

mase — Thu, 03 May 2012 04:56:52 -0400

I tested the hardfp driver on my AC100. There are some issues, which also appeared on
softfp.
I am using Debian Wheezy with xfce4 and the Ventana driver package.
The kernel is linux-tegra-nv-ac100-3.1-exp. The chromeos kernels make the desktop
freeze after some minutes. Only the mouse keeps movable. But no klicks possible and
the keyboard does not react.

The window manager of xfce has to be restarted after boot. Otherwise the window title
bar disappears. That has also to be done when resuming after suspend.
There are still some graphical glitches in the upper panel of xfce. Some users report,
that other desktop environments have also such glitches. Switching to console gives a
black screen. I cannot return to x after that.

BTW: Will there be omx support and a codec package for hf?

NVIDIA Debug Manager for Eclipse 12.0.0 - Breakpoints Never Hit

bThere — Sat, 28 Apr 2012 03:52:16 -0400

I have installed the eclipse 14.0.1 plugin and configured it as per the tutorial

When I debug using the NVIDA debug configuration the app runs and stops on any java break points set but not on any C breakpoints *they remain gray dots*

As far as the config setup the main tab is pretty much left alone (defaults), the Shared Libraries are populated as my projects .../obj/local/armeabi, ../libsdebug directories with load symbols automatically checked

GDB Server is set to APK Bundled, all else default, I tried the system and that just failed immediately with could not connect to server

I am running on Ubuntu 32 bit, Eclipse 3.7.2, CDT 8.0.. , NDK r7c, SDK of the emulator is 9

No real errors, just never stops at the break points set inside the .c files

Is it possible to build Android Framework (with Tegra BSP) on Mac OS X?

sudhakar — Thu, 26 Apr 2012 20:28:32 -0400

I tried building Android 2.2 with Tegra BSP on Mac OS X, and got the following error:

/bin/bash: out/host/darwin-x86/bin/nvidl: cannot execute binary file

There are a couple of prebuilt executables in Tegra BSP, but they only exist for Linux and Windows, not Mac. Are there Mac versions of these files e.g. nvidl?

calculating on shader

zimmerlinde — Wed, 14 Mar 2012 10:47:06 -0400

Hello,

everybody speak about the shaders of the Tegra SoC. I
read there are x vertex and y fragment shaders. But nowhere i can find
an explanation of using parallelism for GLSL

How can i use more
than one vertex or fragment shader? I’v never seen arguments or code for
use more than one vertex or fragment shader. I have no problem with
using one fragment and one vertex shader but i dont unserstand how i can
use more than one. Does the Compiler choose how many shaders to use?

Thank you for your answers

Tegra 3 Development

limpetz — Tue, 24 Apr 2012 13:33:02 -0400

Hi,

Will you please tell me which development kit can be used to develop Tegra 3? I am not sure why CUDA on ARM Development Kit is used for, many of them tell me that its not for Developing Tegra 3.
My company is using Tegra3 for cars!

Thank you.

TEGRA 3 GAMES

ayaz — Wed, 18 Apr 2012 00:12:14 -0400

Hi this is ayaz i just want to know why TEGRA 3 games is not available in UAE. i m using HTC one X i just buy this for tegra 3 games but now i feel that i F*** my self with TEGRA 3. can u plz tell me any TEGRA 3 game which is available in UAE?

Development Kit for Tegra 3

limpetz — Thu, 19 Apr 2012 14:00:22 -0400

the purpose of this forum

userAAA — Mon, 09 Apr 2012 02:23:45 -0400

I'm sorry, maybe I've miss something, but I have to ask NVidia: what topics can be discussed here? what questions will be answered by Nvidia? I mean Tegra thread.

NAND Flash Controller low level access

spw54 — Tue, 17 Apr 2012 16:11:01 -0400

Hello,

I'm working with a research group that deals with properties of NAND flash. One of the tests involves doing a reset that interrupts the program operation. This technique has been done with bare metal access to the NAND. We're investigating if this technique can be applied on a smartphone.

Basically I've been reading the NAND Flash Controller section of the Tegra TRM trying to determine if it can provide enough low level control to be able to send a reset command during a write. With the commands going through the Command Queue Processor would this be possible? Or is there a different way to do program and reset operations?

Any help is appreciated. Thank you.

Enabeling WIFI on Tegra 3 Development board with Linux 4 Tegra

madmaze — Tue, 10 Apr 2012 20:45:52 -0400

Hello everyone,

Ive been playing with L4T on a Cardhu Development tablet. I used the standard kernel and sample file system, but I seem not to be able to get the wifi to work.
If im not mistaken the wifi module is a bcm4329 wifi/bluetooth combo chip. In the L4T rootfs a kernel module is provided, bcm4329.ko. But it seems this only speaks to the bluetooth?

I have used modprobe to load the module, but it cannot find/use the hardware.

Does anyone have pointers to what I could try?

Thanks,

Matthias

Tegra Support Levels

atulkpatel101 — Sun, 08 Apr 2012 13:46:10 -0400

Hi
New to Tegra.
What are the direct support criteria (min volumes etc) for Tegra? I qualify for to initiate direct sales contact (more than 100K units) but what about support? Will get direct suport from nVidia like the large SnartPhone OEMs get?
Any help will be greatly appreciated.

Android problem in PhysX-3.2 beta-3

carlos correia — Wed, 11 Apr 2012 11:13:05 -0400

Hi, i'm try to include (PhysX-3.2 beta-3) in our engine, but a simple line like "static PxDefaultAllocator gDefaultAllocatorCallback; "
produces lots of errors of type :

_ZTVN5physx19PxAllocatorCallbackE[vtable for physx::PxAllocatorCallback]+0x10): undefined reference to `__cxa_pure_virtual'
..
..

I'm running win7 64 with eclipse, and have tried a lots of configs in android makefile, none so far have worked.

any help will be appreciated !

Carlos Correia

Please give us the HAL compontents

r00t4ev3r — Thu, 05 Apr 2012 04:50:38 -0400

Why are you not going to open source the HAL components? Without these components, the Rome are not working well because many things are missing. What's so hard about to simply release the drivers?
Android is known for its large community, what would android be without the numerous custom roms?
It's not that there are 10 people which think like me, there are hundreds or even thousands.
Just read this Thread: http://forum.xda-developers.com/showthread.php?t=1347118
Please think about the community and about the future, because if you go on like this, like you are now doing, many people do not buy Tegra devices anymore.

Sorry for my English, but i think you understand what i mean.

Nvidia Tegra 3 tablet is not responding

simonsu2006 — Mon, 02 Apr 2012 11:04:53 -0400

Hi all,
I tried to debug this tablet through eclipse, I am doing Dev settings on the tablet, I pushed a button in the Dev settings, I don't remember what button now. It became not responding and just kept showing "Android" and the login screen (a time in left hand side and a lock in the right hand side) alternatively. I pushed and hold the power button, it showed "turn off?", before I could push "ok", this dialog window disappears, and "Android" and login screen continued alternatively. What's wrong with this tablet? Please help ! Thanks!

Android 4 nvidia omx api

digetx — Mon, 02 Apr 2012 07:04:17 -0400

Hi, there! I'm working on custom rom for acer a500 and i want to use nvidia's media extractors, hw decoders. Mainly i want to be able to play wmv/wma. So i have some questions...

1) Will nvidia update android sources on nv-tegra to ics? It would be nice if nvidia could release all needed header files for multimedia libs.

2) What i need to change in current available gingerbread superextractor to decode wmv/wma? I can play some wmv files, but without sound because after filling buffers for wma decoder nvomx returns error. I guess that some additional params needs to be passed to omx or data needs to be specially aligned.

Thanks in advance.

Revisiting NPOT, ETC1, MipMapping

Rob Nugent — Thu, 22 Mar 2012 09:26:42 -0400

Hi,

I've finally managed to distill the problems I reported in the following conversation into a simple test case:

http://forums.developer.nvidia.com/devforum/discussion/596

Essentially I'm trying to use non-power-of-two texturing with ETC1 compression and mipmapping. If the texture size *is* a power of two (say 128x128), it works OK and gives results as shown in good_128x128.png (attached). This is a synthetic example with the mipmap levels showing as green/red/blue squares each with a white centre.

If the texture size is *not* a power of two (say 124x124) I get a bad image as shown in bad_124x124.png (attached)

I think I've followed all the suggestions in the earlier conversation. I'll append the source in a subsequent append. If anyone can help or offer suggestions, I'd much appreciate it.

This is all running on my Asus EPad Transformer TF101 now running Android 4.0.3

The source code can be modified from the working to failing cases by changing line 93 of C4Cube.java from:

createMipMapCompressed(128);

to

createMipMapCompressed(124);

Many thanks in advance.
Rob

tegra dual screen

warzon — Thu, 29 Mar 2012 02:44:58 -0400

Hello,

I have some tegra2 hardware with two ports ( LVDS, DVI ). I can't find any official documents about xorg configuration for nvidia tegra2. I can't configure xorg for tegra to create two separate screens. Maybe these is some example of xorg.conf?

How install ICS/Honeycomb on Tegra 250 (Harmony)

eliofrancesconi — Mon, 16 Jan 2012 05:34:31 -0500

Hi all,
I'm struggling on searching in the documentation and forum, how install ICS on my tegra 250 evaluation board, but without success.

Is it possible to install it and how?

The only thing found in documentation is the image for the froyo version, is it the latest version supported or are there newer version supported?

Thank in advance for any hints.
Elio

Tegra ETC1 NPOT MipMaping

Rob Nugent — Tue, 20 Sep 2011 04:56:51 -0400

Hi,

I'm experimenting porting one of my existing PC opengl mapping applications to Android. My development platform is a Tegra (Asus EEE Pad Transformer).

I'd like to use ETC1 texture compression with non-power-of-two textures and mipmapping but can't get this to work at all. I can get mipmapping working with non-compressed textures, and I can get npot-ETC1 textures working without mipmapping.

If anyone can tell me if this is actually supported on Tegra, I'd really appreciate it.

Regards,
Rob

Tegra Android Developer Pack 1.0r5 OSX

Tony Ennis — Mon, 26 Mar 2012 20:53:07 -0400

I downloaded the Tegra Android Developer Pack 1.0r5 for OSX and was unable to open the DMG file.

I am running OSX 10.6.8

Has anyone else successfully done this?

Tegra 3 Tablet Camera API

MichaelD — Mon, 26 Mar 2012 03:39:57 -0400

Hi,

i am doing my master thesis with the Tegra 3 tablet development kit. I want to do real time image processing on the stereo camera the tablet is providing (calibration, stereo correspondence, ...).

The FCamPro example does something like that - it gives an OpenGL texture to a SurfaceView. Is there an existing API-function that allows me to get the current (stereo)frame and manipulate it with some algorithms and pass it on to an (GL)SurfaceView - like the onPreviewFrame() function does on the Android API?

Thanks,
Michael

console broken on linux-tegra-nv-3.1

Marc — Fri, 23 Mar 2012 15:08:32 -0400

hi,

I tried the linux-tegra-nv-3.1 on my AC100 (paz00) and found that the framebuffer console has some problems. It shows the kernel booting, but it hangs somewhere in the initscripts. Adding console=ttyS0 makes it all going again. Well, more or less, because there is no text console when trying to switch from X to text. Strange enough, but booting with my sd card (where the ubuntu root fs is on) unplugged and manual mount it from the initrd makes it also boot again, so I initially thought it was a mmc problem. Also other oss devs mentioned that there seems to be a bug in the framebuffer console. Any hint?

Thanks

Marc

hdmi+vga

userAAA — Thu, 01 Mar 2012 04:16:02 -0500

Hi,
Is there any way to get work the HDMI and VGA outputs together without changing the ODM data and reflashing?

ups, forget - it all about tegra 2, development board "harmony".

Tegra 2 GLES2.0 shader question

dashxdr — Tue, 20 Mar 2012 16:17:43 -0400

Does the Tegra2 fragment shader support flow of execution instructions? A piece of fragment shader code I want to use has a for() loop with a conditional break, but the behaviour is as if the entire loop has been unwound, which destroys performance.

I really want to know if the ULP GeForce used on the Tegra2 even supports the conditional flow of execution ARB instructions at all, and I can't seem to find any documentation or anything that has that particular detail.

If the tegra2 does support those instructions,
1) How can I tell the GLES20 compiler to make use of them when it is compiling my shader code?
2) If I can't do it with GLSL, can I wrote the ARB assembly language myself?

This is on an android samsung galaxy 10.1 tablet, by the way.

Thanks for any and all replies.
-Dave

GLSL Shader parallelism

zimmerlinde — Wed, 14 Mar 2012 10:48:12 -0400

About ICS and Harmony Source

phitch — Wed, 29 Feb 2012 22:28:57 -0500

So, a while back you posted this:

Hello Android Development Community

We do provide our Tegra kernel publically for our Tegra reference devices at http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git. If you're looking for HAL components (ie drivers) or the kernel for a *specific* device it's up to the manufacturer to provide, as per the standard GPL license."

Andrew Edelsten

So, now I am going to call you out, I contacted LG about this, since you said they would have to release it. Well they reached out to you about releasing the source code, and today they got a response which they forwarded to me:

Dear Xxy

We are very sorry for that you keep waiting for a long time in advance.

Today we received reply from Nvidia.
I post their opinion regarding our question below. Please refer to below.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
기본적으로 저희 GB 기반의 Kernel driver들은 이미 아래 site를 보시면 아시겠지만 Public 되었습니다.
If you refer to below public link, NVIDIA already committed TEGRA based kernel sources with various way and timely manner.
http://nv-tegra.nvidia.com/gitweb/

하여 TMUS G2X Kernel driver에 대해서는 NVIDIA 입장에서는 Source 공개를 막을 이유가 전혀 없습니다.
So, NVIDIA official stance to release GB based Linux kernel source can be committed to open source community under GPL terms & condition.

단 LGE는 TEGRA HAL이나 User space code들을 별도로 Source로 받으시는 경우가 있는데 이 부분은 GPL을 따르는 것이 아니기 때문에 공개를 하지 마셔야 합니다.
However, since TEGRA hardware adaptation layer and few user space codes in Android were not made based on GPL so it’s purely NV proprietary, it should not be opened to the public.
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We are very sorry to say that we don’t have any obligation to release source code about TEGRA HAL and user space code from Nvidia.
As they mentioned their opinion, because It isn’t GPL.

If you have any suggestion, please let us know.

Thank you
Best regard.

So, you are making posts blaming the manufacturers for not releasing source code for ICS and your devices and then telling those same manufacturers "However, since TEGRA hardware adaptation layer and few user space codes in Android were not made based on GPL so it’s purely NV proprietary, it should not be opened to the public." Congratulations! Lucky for end users there are several newer quad core and even a few dual core chips that actually outperform the Tegra 3. I will not purchase another Nvidia device until you guys get this right.

Future of Harmony-based devices

dpol — Tue, 21 Feb 2012 06:04:46 -0500

Hi...
The part of relnotes L4T beta - "...developers should note that support for Harmony devices shall be deprecated following this release."
If yours company is't want (or have not any resources for this) to support this devices, where may I get hardware specific documentation to write own drivers ?..

Best regards

Next kernel release

giveen — Sun, 12 Feb 2012 10:19:12 -0500

Is there an ETA on Nvidia's promised release of a new kernel featuring support for Google's latest version of Android 4.0? It was stated earlier on this forum that it would be at the beginning of this year.

How do I get VGA or HDMI to work on Harmony with L4T?

Gussoh — Fri, 09 Mar 2012 05:24:28 -0500

I have been trying to get X with VGA or HDMI to run on the harmony card with L4T beta 12.
I heard you perhaps should change the odmdata when flashing but I don't know what to change to. (I guess it odmdata set to 0x300d8011 as default when choosing Harmony as target board?)
I tried different X-configurations with no success and xrandr just says "Can't open display".

I'd very much appreciate any help.

L4T beta for hardfp

dpol — Mon, 20 Feb 2012 05:00:45 -0500

Hi... I've some issues with alpha L4T (bug in libcgdrv.so... It's unuseable for compositing with gl-rendering, only software-x11). Where may I download L4T beta for hardfp ?..

Best regards

Unable to flash Ventana from 2.3

batterypoweredgames — Tue, 13 Mar 2012 13:46:26 -0400

I have a Ventana devkit with the old 2.3 build on and am in need of some honeycomb testing. Right now when I try to boot into recovery, it bootloops with an update image. When I try to go into fastboot, that works on the device but in Windows, I see the NVidia Fastboot driver installed correctly but running "fastboot devices" doesn't show anything. I'm not sure how to flash this with both of those not working for me. I'm familiar with linux so I also tried to see if I could mount an img via loopback device and copy files over but that also didn't work as this version of linux doesn't seem to have loopback support.

Update: Fixed - see last comment.

Uniform comparison

IvanMMMMMM — Fri, 09 Mar 2012 20:19:28 -0500

Hello,

I'm writing a GLSL shader which is running on a Samsung Galaxy R with the tegra 2 chip. I have a comparison between a int uniform and a literal integer, and it doesn't seem to work. When i change the uniform with a literal equal to the value that is being passed to the uniform from outside, it gives the expected result. Any ideas? thank you very much.

tegra2 linux hardfp drivers

warzon — Thu, 01 Mar 2012 09:24:54 -0500

Hello,

Is there any tegra2 X11 drivers that was built with hardfp? ( -mfloat-abi=hard -mfpu=vfpv3-d16 )
I saw that MeeGo have such drivers, but i can't find them in the internet...

Is it possible to use Tegra Devpack with a Tegra Tablet (for example, Asus TF101)?

slliucc — Fri, 02 Mar 2012 00:34:10 -0500

Currently it looks like Tegra Devpack software only works with Tegra Development Kits hardware. Is it possible to use it with a normal Tegra tablet such as Asus TF101 to develop software?

Tegra 3 Computer Module in the tiny Colibri SODIMM Form Factor

ToradexDan — Thu, 23 Feb 2012 19:44:30 -0500

Toradex is pleased to announce the Colibri T30 ARM computer module, based on the NVIDIA Tegra 3 Cortex A9 MPCore with NEON.

The module is basically pin compatible with the previous Colibri T20 base on the Tegra 2. So you can immediately start with development and the just switch to the T30 as soon module is available in our web shop.
http://www.toradex.com/Products/Colibri_Modules

Does Tegra support CUDA, OpenCL or another GPGPU language?

Andrew Edelsten — Fri, 19 Aug 2011 16:29:22 -0400

I'd like to use CUDA, OpenCL or another GPGPU language on Tegra. Does Tegra support that?

Flashing process hangs

ieq-use — Wed, 01 Feb 2012 07:24:17 -0500

Hello,

im stuck with flashing the MSC Q7-NT2 Board with Android ICS.
On the hostmachine (Unbuntu 10.04) the was installed "tegra-osinstaller-ventana-ics-1.0-linux-2012-01-19-11617556.run".
Also under /etc/udev/rules.d/51-android.rules i add the device
"SUBSYSTEM=="usb", ATTR{idVendor}=="0955", ATTR{idProduct}=="7820", MODE="0660", GROUP="plugdev""

So, i connect the USB-Client to my PC USB-Host and run "flashos.sh" and start the board in recovery mode.
But its stuck after following lines and nothing happens anymore.

# ./flashos.sh
Nvflash v1.5.66719 started
rcm version 0X20001
System Information:
   chip name: t20
   chip id: 0x20 major: 1 minor: 3
   chip sku: 0x8
   chip uid: 0x037c7107400071d7
   macrovision: disabled
   hdcp: enabled
   sbk burned: false
   dk burned: false
   boot device: nand
   operating mode: 3
   device config strap: 0
   device config fuse: 0
   sdram config strap: 0

sending file: flash.bct
- 4080/4080 bytes sent
flash.bct sent successfully
odm data: 0x30098011
downloading bootloader -- load address: 0x108000 entry point: 0x108000
sending file: bootloader.bin
\ 864856/864856 bytes sent
bootloader.bin sent successfully
waiting for bootloader to initialize

So do you have an idea why this happen? Do i forget something to setup?
Its possible thats the ics-bootloader won't run on my board (mismatch)?

I would be glad about some helpful comments.

Regards,
Ulrich

ps. I also tried to flash the board on winxp with the same result.

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