WinCE

Forum Post: RE: AM335x Bad baudrate on all serial ports (unwanted changes at run-time)

Steve Deschryver — Fri, 17 May 2013 10:53:00 GMT

Hi,

It's a custom board with a AM3354 rev 0 cpu at 720MHz running windows Embedded Compact 7, we are using the TI serial driver from the SDK.

UART0 is for debugging and openend (only once) when booting windows, setup (only there) to 115.2000 baud and sending data out.

UART3 is frequently openend, setup to 115.200 baud, data transfert and closed again.

At some point the baudrate has changed (ex. 142.000 baud) on these two UARTs and stays bad even if UART3 is setup again to 115.000 baud.

I don't think it's the baudrate deviders because both UARTs changed and stay bad even if UARD3 is reconfigered to 115.2000.

Forum Post: about AM335x Wince 7 USB driver support for Isorchonous Pipe

Jian Zhou — Fri, 17 May 2013 03:57:00 GMT

Hi expert

Does our USB OTG Host mode driver support Isorchonous Pipe operation?

Now our customer develop the USB camera functionality base on the AM335x Wince 7 platform.

Forum Post: RE: EVM Silverlight graphical artifacts (bsp_xrplugin_opengl=1)

Magnus Olofstam — Thu, 16 May 2013 19:24:00 GMT

Hi Chris,

Thank you, I would be very interesting to hear about your findings, and also if you got any response from Adeneo regarding the OpenGLES XAML rendering.

I ran the CETK Silverlight test, (in the test application a virtual keyboard does a quite intense vertical translation, while some spaced-out graphics animate in the background). I checked the CPU load, which was around 20% for the OpenGLES XAML, and the I ran the same test using unaccellerated XAML - it totally bogged down the MCU (100% load). So the translation was accellerated to some degree I guess, besides the artifacts, memoryleaks and crashing.

Perhaps you've already seen this article if you plan to look into a customizing the OpenGL XAML renderer, but here goes:

Implement Hardware Acceleration for Graphics in Silverlight for Windows Embedded [Reference] (Windows Embedded Compact 7)

http://msdn.microsoft.com/en-us/library/jj919286.aspx

Cheers,
/Magnus

Forum Post: WAV Driver suspend and resume

1258021 — Thu, 16 May 2013 07:47:00 GMT

Hi,

We are looking at the DM3730 BSP. In wavedev driver it is noticed that when ever m_bSuspend is set in WODM_WRITE without adding any buffers it is returning back. Why is this required? What happens if the buffers are just queued instead of returning with out adding to queue.

Does the buffers are completely played before entering into suspend. If the buffers are returned w/o adding will it not miss playing that data?

Please let me know your ideas.

Regards,

GSR

Forum Post: DM3730 USB( DMA) issue

Joyce Qi — Wed, 15 May 2013 03:42:00 GMT

Platform: DM3730

OS: WinCE BSP_WINCE_ARM_A8_01_02_00

Issue description: During USB DMA transfer , CPU load is higher.

Can you give some advice how to check if USB DMA is enabled?

Thanks advance for the support.

Forum Post: RE: AM335x WEC7 DVSDK

Adeneo Embedded support team — Tue, 14 May 2013 21:38:00 GMT

Here is again the link to the video file I mention in my previous post.

(Please visit the site to view this file)

Forum Post: RE: AM335x WinCE BSP - controlling the pin mux

Adeneo Embedded support team — Fri, 10 May 2013 20:06:00 GMT

Hello,

You can change the pin multiplexing and pad configuration in the following file:

\BSP_WINCE_ARM_A8_02_30_00\Sources\PLATFORM\AM33X_BSP\SRC\INC\bsp_padcfg.h

This file contains all of the current pin multiplexing for each peripheral on the AM335x EVM. For example, the NAND_PADS configures GPMC_AD0 to its primary function (MODE(0)) so that it can be used as an address/data line to the NANDFlash chip. However, if you did not have a nandflash chip on this pin and instead wanted to use it as a GPIO, you could change this to MODE(7). The definitions for what functions each pin has are in the AM335x reference manual.

Forum Post: RE: How to use WEC7 Remote Display ( cerdisp ) in Beaglebone?

Adeneo Embedded support team — Fri, 10 May 2013 20:00:00 GMT

Hello dasco,

Here are some instructions on how to enable and use CE Remote Display:

http://nicolasbesson.blogspot.com/2007/12/enable-remote-display-application.html

Make sure to include it in your build by setting the SYSGEN_CERDISP catalog item and sysgening again. If you still cannot see your device's frame buffer properly, you may need to use the NOPDISP driver instead of the BSP's standard display driver.

It may be easier to just use a different tool, such as My Mobiler.

Forum Post: For Adeneo: What happens to a shared interface pointer (through IOCTL_DDK_GET_DRIVER_IFC) when the driver that passed it gets unloaded at run-time?

Marlon Jose Masbad — Thu, 09 May 2013 02:04:00 GMT

We are using the Adeneo-release BSP for the TI AM335x EVM and one of the driver feature that is part of this BSP is the use of an IOCTL_DDK_GET_DRIVER_IFC which allows a other kernel mode modules to request access of key function pointers of several driver API.

My question is what would happen if for example a kernel module X would use the function pointer to make a GPIO driver interface call to set an clear a certain pin but unfortunately at run-time the GPIO was suddenly unloaded (either by some other module request to unload DLL or some weird scenario that happened in device manager)?

What would happen to address that the function pointer points to if the DLL is already unloaded?

What recovery/safety mechanism should implemented in events like this (i.e. implement "try" when doing IFC calls)?

Forum Post: How to update eboot(in nand) or reflash the NAND using platform builder?

Xu Fei1 — Wed, 08 May 2013 05:55:00 GMT

I'm following the steps from http://processors.wiki.ti.com/index.php/WinCE-BSP_ARM-A8_User_Guide#Flashing_the_board_over_Platform_builder

"fter booting the device, download any image (XLDRNAND.bin, EBOOTNAND.bin or NK.bin) to the device to flash it automatically. Make sure to have the IMGNAND environment variable set when building NK.bin if you wish to flash it."

I don't quite get it. I have flashed the NAND using UART3, then boot from NAND and platform builder can debug it now.

Then I wish to update the eboot in NAND using PB. How can I choose the file I download from PB (XLDRNAND.bin, EBOOTNAND.bin or NK.bin), I guess NK.bin always gets downloaded. According to my understanding, eboot is not in nk.bin, so how does boot in NAND get updated?

Maybe something wrong with my understanding?

Forum Post: RE: No '§' is sent out after flashing NAND by pserial.exe, where to check?

Xu Fei1 — Wed, 08 May 2013 05:48:00 GMT

I'm using another tool called flash.exe from TI, it's working.

Forum Post: How to capture data from on-board AIC3106 codec using WinCE6.0/DSPLINK/OMAP-L138/LogicPD EVM?

Don Masin — Tue, 07 May 2013 14:18:00 GMT

Hi,

We're using the OMAP-L138 SOM with WinCE6.0 and DSPLINK. I've looked everywhere for example code compatible with DSPLINK that will help us get started with DSP capture of data from the on-board AIC3106 on the LogicPD EVM. Changes would need to be made in the OSD and possibly the BSP, but beyond that, I have no idea where to begin. I've found an example in Linux that writes gpp data to the codec, but it's not CE, and it doesn't read the codec. Could anyone please point me to some relevant code using CE?

Thanks much. D.M.

Forum Post: RE: Power VR demo

Adeneo Embedded support team — Mon, 06 May 2013 19:19:00 GMT

Hi Michi,

Can you check the memory usage on the devices that are running a very long run of the skybox demo? It is possible that the device has run out of memory on the 512 board and has not on the 1GB board yet still has very high memory usage after 3+ days.

For the second issue "PVRShell: Unable to create surface" is this issue reproducible on the EVM?

Also can you confirm the following:

1) Screen resolution.

2) Memory map on the custom device.

Regards,

Forum Post: RE: AM3517 on VS2008 platform builder build error

Adeneo Embedded support team — Mon, 06 May 2013 19:02:00 GMT

Hi Anthony,

I found the following explanation of the error:

You cannot create an instance of a class if it has any pure-virtual members. Whether those pure-virtual members were declared in that class or in a base class. A class cannot be created unless all of its members exist. A class that has pure-virtual members (whether declared in the class or in a base class) is called an abstract class.

So if you inherit from a base class that has pure-virtual members, you must implement these in the derived class if you want to create instances of that class (like putting them in a std::vector).

You can put pointers to an abstract class in a std::vector. But only pointers, not the object themselves. So you would need to allocate your objects with new, but since the class is abstract you cannot create them at all. So you will need to derive a new class that implements the pure-virtual methods. And then you will be able to create that class and put it in your std::vector<someclass*>.

I would perform a quick diff of the code bases on the working and non-work machines to see if anything was different. If not I would do a clean build to see if anything changes. Another quick thing to try is rebooting of the offending system to make sure nothing with VS2008 and PB are out of sorts and then rebuild. Finally it might be worth while to check the QFE level of the machines to makes sure the platform itself is the same.

Right now nothing is jumping out as an issue based on your description.

Regards,

Forum Post: RE: [AM335X WINCE7][BSP_WINCE_ARM_A8_02_30_00_Source.exe] TFT LCD for 16bit bpp

jojo tai — Mon, 06 May 2013 10:42:00 GMT

Hi,

With 16bit/565 LCD, should be DISPC_PIXELFORMAT_RGB16, not ARGB16. ARGB16 is 24bit mode.

With 24bit mode, R[3:7] is Bit 0~4 , G[2:7] is Bit 5~10, B[3:7] is Bit 11~15, and R[2] is Bit16...
With 16bit mode, B[3:7] is Bit 0~4 , G[2:7] is Bit 5~10, R[3:7] is Bit 11~15.

We are using 16bit/565 with BSP_WINCE_ARM_A8_02_30_00 on AM335x Wince7 platform, too.

Forum Post: RE: File Sharing (SMB) not working for WEC7 on DM3730

Zack Zadecki — Thu, 02 May 2013 18:45:00 GMT

All,

I’ve figured out why file sharing was not working on our platform and I have it working now.

I don’t understand this dependency, but the file “locale.nls” has to be in the first region (NK). If I move it to BinFS – file sharing doesn’t work.

That's very interesting.

Thank you very much for your help on this!

Best regards,

Zack

Forum Post: RE: WEC7 Problem with SetLocaleInfo

Zack Zadecki — Thu, 02 May 2013 18:36:00 GMT

OK, I've figured it out. It looks like the file "locale.nls" has to be in the NK region. I've had it in the BinFS region and that's why it didn't work. After moving it to NK, SetUserDefaultLCID works fine.

Best regards,

Zack

Forum Post: RE: Dual MAC ring buffer problem on AM335x and EC7

Greg Sulfid — Thu, 02 May 2013 09:04:00 GMT

Hi, did you implement the dual MAC mode with success for EC7?

Forum Post: RE: Sharing EDMA3 resources between DSP and ARM

Gunjan — Tue, 30 Apr 2013 18:06:00 GMT

Hi Peter,

1. The interface used to manage resources depends on what software you are using on the DSP side. As far as FC is concerned, DMAN3 is your DMA-manager and as I have mentioned before, it does not use/touch DMA channels. Are you aware of any other software being used on the DSP side ?

2. TI codecs would ideally express their DMA requirements using an IDMA3 interface. DMAN3 is then used on the DSP side to read these requests and grant resources. DMAN3 configuration is adjusted per system availability and requirements to assign the right resources to the codecs. Maybe you can check codec datasheet to confirm that all codecs are using IDMA3 to obtain resources ?

3. As long as system initialization on ARM side and DMAN3 happens in sequence, after that DMAN3 would only touch registers that correspond to resources it owns. Typically at init time, global initialization registers for EDMA3 are modified (for e.g., queue priorities, queue to TC mappings etc). After that, both ARM and DSP should touch registers that correspond to channels/tccs/params it owns.

You can look at this post for some discussion on this topic:- http://e2e.ti.com/support/embedded/linux/f/354/t/47756.aspx

Forum Post: RE: WEC7 porting on AM335x (BeagleBone with LCD7 Cape) - how to enable touchscreen

Paul Koenig1 — Tue, 30 Apr 2013 15:00:00 GMT

Hello Dasco,

I have not gotten back to working on the resistive touchscreen portion. The touchscreen requirement wasn't nailed down, so I moved over to other requirements.

I'm also curious about remote display, but I need to remotely view the LCD, not view another desktop from the LCD. Is this supported inside the compact version of Windows?

Paul