OMAP L138 Writes to reserved memory writes on DDR address
Hi,The OMAP L138 have the DDR mapped from 0xC000 0000 to 0xDFFF FFFF and next to it has a reserved zone, from 0xE000 0xFFFF FFFF.Using devmem2 [1] it appears that any write to the reserved zone is...
View ArticleHow do I use the full 512 MB space with DDR2?
I am designing a board which will require the OMAPL138/C674x processor with 512 MB of DDR2 RAM. It appears that there is no way to use DDR2 chips having 10 bit column addresses since row addresses are...
View ArticleStarterWare USB Bulk device programming problems
Hi,I am using StartWare USB Generic Bulk device library. There are some errors and warning when I build my application.1. warning: #145-D a value of type "unsigned long(*) (void*, unsigned long,...
View ArticleCannot remove PLL from bypass mode?
I have a custom AM1705 board that is hanging on the last step of Setup_PLL() of the gel file. Specifically, the code that hangs is:PLL0_PLLCTL |= 0x1;And the error message is:ARM9_0: Trouble Writing...
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OMAPL138 AINTC CMR
Hi, I can not understand the CMR register. and the N represents what ? CHNL_NPLUS set for the host interrupt? what is the relatioship between the CMR[n] and The 101 system interrupt ? I...
View ArticleDAC stuck
Hi I'm using board OMAP L137 EVM can someone tell me why my DAC always stuck when I try to do filter calculation in floating point ?it didn't stuck when I calculate it in fixed point I put the ADC...
View ArticleL138 DSP-core's behavior after Linux kernel booting
Hello!I am being confused with the next situation: DSP-core periodically reads EMIFA_MIDR_REG (0x68000000) which stores constant value of 0x40000205. When ARM-core runs UBOOT, readed value is correct....
View ArticleBIOSPSP 3.00.01.00 examples, event combiner
Hello,I've looking at the examples in the BIOSPSP for using drivers, and wondering what the event combiner is doing. I don't see any references to it in the application code, but when I removed it...
View Articledebug dsplink application on EXPKITOMAPL138 using CCS 5.4.0
Hi guys,I am following http://processors.wiki.ti.com/index.php/Debugging_the_DSP_side_of_a_DSPLink_application_on_OMAP-L138_using_CCS to debug dsplink application using CCS 5.4.0. I have several...
View ArticleOMAPL138 LCDK c674x problem - Device held in reset
Hi,I'm trying to run an IPC IO example on a OMAP L138 LCDK using CCSv5.2.1.00018, on the DSP core (C674x), but when I try to debug, I have the following error message : "C674X_0: Error connecting to...
View ArticleOMAP-L138 eMMC or Sdcard/MMC ?
Hi All,We are currently using a standard MMC/SDcard in our design. However, due to some reliability issues we are thinking of moving to the eMMC storage. I have some questions in that regard:1. Are...
View ArticleCPPI 4.1 HPD buffer size
Dear All,I am making USB driver for AM1808.I implemented CPPI DMA function in my driver but I have one problem regarding RxCompletion.Host PC sends 640KB packet to the target board implemented AM1808.I...
View ArticleBooting into an initramfs on a AM1808 platform
Does anyone know what I have to do to boot into an initramfs on the AM1808 EVM? I have created a initrd.cpio.gz file and have successfully loaded the kernel and initramfs into memory from the uboot...
View ArticleOMAP138 support for eMMC v4.41
Have ther been any updates to the ROM MMC IP for the OMAP138 to allow it to fully support eMMC v4.41 yet?
View ArticleMutex Between ARM and DSP
Hi, Without DSP/Bios, is there a way to implement a truly atomic mutex between ARM and DSP?Thanks
View ArticleDSPLINK with Qt
Hi guys,I have some questions about the DSPLINK application. I use Qt to make a GUI and modify the message sample. After ARM side getting the information from DSP, it should pass the message to GUI and...
View ArticleAM1808 MMC version supported
Hello,I want to add EMMC NAND flash(4GB) to AM1808 OMAP processor.Please let mebknow whether AM1808 processor will support 4.41 version EMMC NAND flash.If not, please suggest me which version of EMMC...
View ArticleOMAPL138 development board setup
Hi there,could anybody help me? i'll highly appreciate it.i just got a TMDXLCDK138, am following the start guide, and got error warning as in below. any suggestion pls to fix it? i'll highly appreciate...
View ArticleHow to optimize the following codes on c674x?
I try to otpimize the following code. But the optimized code is far from efficiency. The software pipeline is inhitied by The Loop Carried Dependency Bound(^) . Length can be divided by 4.Orignal...
View ArticleAM1808 Supports Camera & TFT LCD
Hi all, I would like to know whether the AM1808 have Aptina Camera (MT9P031I12STC) sensor support is available or not??? I am using tft parallel 24 bit LCD module and using Aptina Camera module. Please...
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