GPIO protection of TMS320C674x
Dear e2e members!Is there anywhere some recommendation on protection of GPIO of TI's DSP, in particular TMS320C6745. (I mean recommended values of current-limiter resistors an so on).Thank You!Vitalii
View Articleam1808 rtc issue in kernel 3.17
Dear all,i am facing a strange issue on am1808 based board, very similar to da850-evm:omap-rtc is not more shown as running.Strangely, if i add this lines, as them was there in kernel 3.5.1, it starts...
View ArticleQuestion about using the DIP switches on LCDK
Hi,I am using the libraries provided by the book "Digital Signal Processing and Applications with the OMAP-L138 eXperimenter" for a adaptive noise cancellation project. I want to use DIP switch example...
View ArticleHow to develop software on c6745?
how develop software on c6745?Does it have StarterWare lib on it?
View ArticleOMAP-L138 BOOTMODE register's value
Hi,Boot Mode:This reflects the state of the boot mode pins.In my boards,The pins(BOOT[7:0]) value is 00001110,I use xds100v2 to connect the board and view the BOOTMODE register's value ,The value is...
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OMAP-L138 I2C - spike on SCL
Hi all,Debugging the I2C bus errors on the custom board based on the OMAP-L138 I've found a strange phenomenon - a short spike on the SCL line at the beginning of low-to-high transition.There are 5...
View ArticleEDMA transmits just half of the values
Hi,I´m working with the OMAPL138LCDK and try to get an edma example running on my chip. I want to transmit just 32 shorts to another array. In just can transmit half of the values. After this the...
View ArticleOMAP L138 EDMA3 transaction does not get finished
We work with EDMA3 support on multiple peripheral controllers and have heavy parallel traffic on both SPI busses. Sometimes EDMA3 transaction get stalled - usually one or two bytes before completion....
View ArticleDetecting AM1808 with/without DSP
I would like to be able to detect if a DSP is present as some of our products use an OMAP L138 and some use a AM1808. We use the DSP to improve performance on the products but we can operate without...
View ArticleL138 USB DRVVBUS Interrupt Not Firing
I have a custom OMAP L138 board where I am using the USB controller in an OTG configuration. This is using Linux package 3.22.0.6. Until now we have largely used the USB port in client mode to...
View Articlebuilding u-boot for da850evm vs building u-boot for LCDK
For the da850evm, you can build u-boot in ais form from the command line:make distclean make da850evm_config make u-boot.ais and flash it using sfh_OMAP-L138.exe without a separate "generate AIS" step....
View ArticleDSP code-optimization problem (boots no more if for PSC-init module...
Hello, could anyone help me in the following boot-topic related issue. I've almost solved the problem, one last detail is missing only. The C6747 DSP in a custom-made hardware C6747 boots in a SPI0...
View ArticleTimer interrupt on the C6748
Hi everyoneI am trying to get an interrupt routine with the timer 0, I have try a lot of things, all bad...So with the HWI on the HWI_INT5 my interrupt selection number is 4 (the timer) and my function...
View ArticleProblem about mic_input and line_input on LCDK
Hi,I am using the libraries from "Digital Signal Processing and Applications with the OMAP-L138 eXperimenter" to do a project for active noise cancellation. I used...
View ArticleHow to implement an cascade classifier OpenCV in a hexadecimal array
Hello,I am using TMDXLCDK6748, this a DSP board with a single core. I want to use this board in biometrics aplications.To do that, I am going to start working with facedetect example which is in the...
View ArticleC6748 polling interrupt flag
hi e2e community..im using LCDK 6748 and currently working on EHRPWM project..my project required very fast of PWM period and need to update the pulse width on every period..the EHRPWM will do event...
View ArticleEDMA pauses
Hello!We have used four memory bus masters: EDMA0_0 for McBSP (permanent), EDMA0_1 for SPI (frequent-periodic), EDMA1 for manual periodic big data block transfers, and also there is DSP.There is a...
View ArticleSlow DSP67x.lib
I am using the DSP67x.lib with the OMAP L137. I am comparing the single precision dot-product (multiply-add) to the C language equivalent and there is not much difference. For example, a 1000 point...
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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 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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