Displaying Spectrum on LCD Panel- OMAPL138 EVM

Hi Tariq,

Do you use WIN CE BSP for omapL-138 ?

If yes, as per this link, http://processors.wiki.ti.com/index.php/AM18x/OMAP-L138_WinCE_BSP_Quick_Start_Guide#Sample_Applications 

WQVGA Display Samples are available.

Regards,

Shankari.

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Hi Shankari,

Thanks for your reply.

I am not using WIN CE BSP for OMAPL138 rather BSL based projects for CCSv4 on Windows 7 platform. Is there anything which can be run using CCSv4 ?

I don't know how different is WIN CE BSP from CCSv4 and how difficult is it to port my current project to WIN CE platform.

I appreciate your help.

Thanks.

-Tariq

Tariq,

Starterware LCD/Raster example might be good starting point. They provide CCS based, OS independent low level code to program the device.

http://processors.wiki.ti.com/index.php/StarterWare

http://processors.wiki.ti.com/index.php/StarterWare_01.20.01.01_User_Guide#Raster

If your using Linux, you have the option of using QT based interface to generate graphics. There are several pre-built examples in the QT package that demonstrate plots and graphs. This package is also integrated inside the build and filesystem provided as part of the Linux DVSDK kit for OMAPL138

Regards,

Rahul

Rahul,

I am really confused when people suggest to use different platform for different application. I have no idea what StarterWare is ? I have used only CCS on Windows platform to develope projects.

At the moment I am using OMAP-L138 EVM, after spending so much time I managed to get one project working which samples data using ADC attached to UI board of the kit. After that I wanted to store large amount of sampled data to SD card which I am still trying to do. I found RTFS based example which works alone but when I combined with ADC project, it doesn't work. Another new issue is using LCD to show spectrum.

Before selecting OMAP-L138, I saw videos on TI website, people were claiming that OMAP-L138 is so perfect for tests and measurements, it's so easy to use and everything is available. When I started developing projects, every thing proved to be so difficult, some projects are available based on BSL, some are available as PSP or RTFS package, some are available on Linux, StarterWare or Win CE platform and they are not compatible with each other. It's seems really impossible to combine projects, part of which are availabe as BSL, PSP or RTFS package.

My objective is to sample analog signal, compute real-time FFT, showing spectrum or some float data to LCD and store large amount of data to SD card. Please guide me which platform should I choose to achieve my goal as early as possible.

I would really appreciate your help.

Thanks.

Tariq

In addition to previous post, please tell me if it is possible to run StarterWare application on EVM using CCS debug mode ?

Is binary/arm5/gcc/omapl138/EVMOMAPL138 the folder to use binaries for different projects to be used with OMAPL138 EVM ?

Will it be possible to see graph or any real-time buffer like in CCS with StarterWare application ?

Thanks.

Tariq

Hey you there ?

Tariq,

Yes, you can run the starterware application on the EVM using CCS debug mode. The folder you have specified contains ARM binaries for the starterware examples, if you want to run the same for the DSP, the binaries will be found in the C674x folder. Starterware CCS example application will render a Starterware welcome screen. The game xample implements a small game utility on the LCD screen. As far asI know there are no Graphs in the Starterware package, you will have to use the starterware code to write that part of the application

Regards,

Rahul

Rahul,

I couldn't found any Target Configuration File for StarterWare package, when I create one and try to go debug it gave error. Wiki page doesn't say anything either about debug mode. Only way explained on wiki page after building binaries is to use serial flasher.

How can I use debug mode ?

My objective is to sample analog signal, compute real-time FFT, showing spectrum or some float data to LCD and store large amount of data to SD card. Please guide me which development platform i.e. CCS, Win CE, Starterware should I choose to achieve my goal as early as possible.

Thanks.

Tariq

Rahul, 

Can you reply to this post ?

Thanks.