AM1707 USB OHCI host controller
Hello,I want to connect the USB numerical keypad (HID device) to AM1707 USB OHCI.Some keypads can connect correctly, however some keypads can't.When the USB numerical keypad's cable is connected to...
View ArticleDDR initializing for OMAP-L138 EDMA3 mcsdk example
Hi All!I try to understand structures of example projects for OMAP-L138 from TI. I investigated edma3_lld_02_11_09_08 examples. For ping-pong sample I see that routine use adress location of DDR:signed...
View ArticleDevice is held in reset. Take the device out of reset, and retry the operation.
Hi,I encountered the following error when I tried to debug my LCDK:Error connecting to the target:(Error -1180 @ 0x0)Device is held in reset. Take the device out of reset, and retry the...
View ArticleOMAP L138 LCDK 30 fps image processing
Hi;My application needs real time image processing for optical sorting on dsp kit without intermediate PC.the multicore c6678 have no camera interfaces so,is OMAP L138 LCDK board and processor are...
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DSP/BIOS project debug issue based on OMAPL138
Hi, The uart console will be halted when DSP/BIOS task shift. My customer found that the console will be halted in below scenario.1. Run Linux in ARM9;2. Connect ARM9-core;3. Connect...
View Article[OMAP-L138] RTC crystal requirements
Hi TI,There's no requirements for RTC crystal in the L138 documentation currently available.OMAP-L137 datasheet says: "A crystal with 70k-ohm max ESR is recommended. Typical load capacitance values are...
View Article[OMAP-L138] I2C issue (spike on SCL)
Hi TI,Starting design of some new boards and re-spinning of existing ones I have to repeat some questions that still remain unanswered (see OMAP-L138 I2C - spike on SCL).Problem summary:There is a...
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Problem with XDCtools when trying to compile NDK HelloWorld Example
I am using a ZOOM OMAP-L138 EVM development Kit with the OMAPL138B processor chip.I am trying to get the ndk_evmOMAPL138_arm9_helloWorld Example program working but am encountering the following...
View ArticleQuestion about how to export data from DSP to Matlab
Hi,I want to record the data from one of my microphone when the main program is running. Can I simply use a buffer to store the value from my microphone, use the graph tool to plot the buffer, and use...
View ArticleMandatory Power-On-Reset for C6478?
Hi everyone,I'm taking a look at C6478's Bootloader Application Report and I have just noticed that a Power-On-Reset (POR) is mentioned as a kind of reset that entails a Start-Word Synchronization and...
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OMAP-L138LCDK VPIF memory issue
I'm trying to get the composite input of the LCDK board working. Firstly, I follow this post http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/339153.aspx. I have used the config file...
View ArticleEDMA not running
Hi everybody,I´m currently trying out the OMAPL138 LCDK with the newest edma lld (2.11.14.19).It is not writing the registers at all for the edma. I looked for the sysclk2 (responsible for edma) and he...
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TW9910 video wrong on OMAP-L138
Hi I can get TW9910 video data on OMAP-L138, SDK version is MCSDK 1.02. The capture size is:720X576. The video picture is: The chrome data is wrong! In OMAP-L180 Technical Reference Manual, I...
View ArticleUSB Enumeration not working
Hi,I want to develop USB firmware on 6748 . I have the sample code for the same. But going through the enumeration process I found the following sequence.Reset signal from host then followed by...
View Articlequestions about USB enumeration
Hi, I'm developing a USB system on TMS320C6747 recently. I have some questions about the USB enumeration process.In my opinion, the enumeration process should be: get device descriptor, set address,...
View ArticleAre there any matters of concern about C6745 RSV4 pin unconnected?
Hi Champs,According to the latest C6745 datasheet SPRS377F, RSV4 pin description has changed as follows. - SPRS377F Page-6, Revision History Updated/Changed RSV4 DESCRIPTION from "...This pin may...
View Articleu-boot-2015.01-rc1, generic machine, and device trees
I'm trying to make some changes to the latest (as of now) upstream u-boot for the da850evm (for now). One trivial, one less so.The trivial change is getting rid of the warning about not using the new...
View ArticleOne mcasp support two codecs on Linux/OMAPL138?
static struct snd_soc_dai_link da8xx_evm_dai[] = { { .name = "cs4398.0", .stream_name = "cs4398.0", .cpu_dai_name= "davinci-mcasp.0", .codec_dai_name = "cs4398-hifi", .codec_name =...
View Articleconsistency problem with OMAPL132 internal RTC
Hello Forum,We are facing this issue in our OMAPl132 processor based design, which is using internal RTC with 20ppm external crystal.The RTC is updating sometimes and sometimes not. I found the clock...
View ArticleTrouble with ae674 files
Hello, I'm a beginer in this topic. How can I change/rebuild evm.ae674 file from biospsp_03_00_01_00 audio example? I'm using LCDK6748, so I have to change PINMUX1 configuration from the...
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