OMAP-l137 hanging on DSPLINK.
We developed an acquisition system based on OMAP-L137, 32 Mbyte, 216 MHz.The DSP core collects samples from an EPLD through EDMA McASP, bandpass filters them, then transfers themin 1/64 Hz data packets...
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AM1808 USB2.0 as peripheral mode
Hi We have custom AM1808 device and i need to enable the USB2.0 in peripheral mode but there is no initialization part in board file.Please let me know what is the procedure to activate USB2.0 as...
View ArticleLaunching kernel error
Hi,I downloaded kernel image into DDR2 at address 0xC0700000 with Ymodem exchange proposed by UBOOT (loady command).But when I execute "bootm 0xC0700000", kernel is not...
View ArticleLinking issue in OMAP-L138 DSP+ARM9 LCDK with SYSBIOS to drive StarterWare
HelloYesterday, I just repeated what Sam had done (of this thread) last year. http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/259301.aspxFirst, I have created a SYS/BIOS (v6.4)...
View ArticleIs there any over temperature feature on OMAP-L38
We are using an OMAP-L138 in the with the 'A' temperature range (jc=105) in oven tests.When the oven ambient temperature is at 85 degrees celcius, the board will reach 98 degrees.What we see is that...
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Problems when joining L138_am_poll and gpio projects
Hi,I'm working with my TMS320C6748 in a functional gpio project. Now I want to include the audio codec in my project (L138_am_poll), but I have some problems on it. Theoretically, I just have to add...
View ArticleLCDK Interface to Robot
Is there a recommended practice for interfacing an LCDK to a robot? That is, taking in multiple low-frequency analog inputs, and providing analog/discrete and PWM outputs. I know that the LCDK can't do...
View ArticleThe left and right audio channels are exchanged!!
Dear Sir,We have a serious problem with OMAP-L137. After the Linux is booted, we run the following commandarecord -d 20 -D 'hw:0,0' -r 96000 -f S32_LE -c 2 | aplay -D 'hw:0,0' -c 2and feed the left...
View ArticleSome problems with SD card on OMAP-L137
Dear All,We have three OMAP-L137 boards. We have developed a application executed on ARM that reads data from audio interface and sends it to the DSP, then receives the processed data and play it. When...
View Articleomapl138 large latency when dma reads uart rx
i am using edma to store incoming rx chars from uart 2 in L2 SRAM. i am using a "bare metal" DSP application.the uart baudrate is 460 kbaud, so 14-byte packets arrive in about 1/3 msec. I have...
View ArticleSPI0 CLK continuously enable
Hi All!I need generate clock for external ADC by my L138-target. Each of timer output pins is already busy, toggle GPIO in the timer interrupt - bad idea, because of big jitter in this case.I want to...
View ArticleSuggested DDR2 chip for C6748LCDK derived board
Hi,My custom board is based upon the C6748LCDK and where possible I've used the some components. Now, I'm having serious trouble obtaining the Samsung DDR2 chip (K4T1G164QF). Are there any other...
View ArticleUART with auto flow for omapl138evm
Hi,I am enabling flow control for UART2 of omapl138evm and on other side I am using window application TeraTerm but I am not able to transmit any thing to tera term.Things work fine with out flow...
View ArticleUser level: Beginner, Task level: Expert
Hello everyone,I need a little help in finding the direction of how to run my custom board with AM1808.I have worked on Zoom™ AM1808 eXperimenter...
View ArticleOMAP L138 SPI1 Problems
Hello All,I am using LogicPD Omap L138 SOM on a custom board, SysBios 6.34.2.18, XDCTools 3.23.5.61, StarterWare 1.10.03.03.I try communicating with a sensor trough SPI1 over the ARM9 core:1. Pinmux is...
View ArticleQuestion about AM1808 SPI SOMI pin function
Hi,I have a question about AM1808 SPI.I want to configure FPGA via AM1808 SPI.The data access direction will be only AM1808(Master) to FPGA(Slave) not bi-directonal.In this case, SOMI pin is not need...
View ArticleOMAP L138 USB
I'm trying to integrate our board (OMAP-L138 running Linux on the ARM) with an Android device. Are you aware of any resources, app notes, etc for interfacing the OMAP-L138 (running linux) to an...
View Article[C6747/DA8xx] IPU/IPD is valid during reset ?
HiI would like to confirm whether IPU/IPD registers are valid or not while reset pin is being asserted.The same has been discussed here for...
View ArticleDynamic DAC_ATTEN value change of audio codec
Hi all,I want to change the value of the DAC_ATTEN from the audio codec while executing the program, how could I do it? Because I've tried to use this: output_sample(buffer[inbuf_ptr]); And I change...
View ArticleOMAP-L137 Sporadic kernel NULL pointer dereference of Davinci Linux on higher...
Hello,we are working with an OMAP-L137 processor on a custom hardware similar to the OMAP L137 EVM evaluation board. We are using a Davinci Linux and SYSLINK for the communication between the ARM and...
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