best EDMA operation mode
Hi,I have the follwing challange:I have 3 ADC's (16 Bit parallel bus interface AD7643) connected to the EMIFA-interface of my OMAP L138 processor. I'm using the SoM from Critical Link MityDsp L138...
View ArticleSPI1 issue -> spi_write hangs on OMAPL138 LCDK
Hi,I am using OMAPL138 LCDK (Hawkboard) with custom LCD hardware. LCD is interfaced over 16 bit RGB interface and 3 wire SPI1 configuration.I have done necessary modification in kernel for SPI1 support...
View ArticleHow to open *.lib files
Hello everyone, when i build my project with differrent *.lib, the *.out file being built seems differrent too. Is there anyway to translate the *.lib files to *.c format?Thanks a lot!
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Ompl138 DMA EMIFA
Hi： Recently, I am finding the reason why omapl138 communicate with the NAND chip of MT29F16G08A is so slowly, When I used the EMIFA port to read or write with the NAND,I found that when i read a...
View ArticleOMAP Default Internal Pullup/Pulldown
HiI'm a little confuse with the default IPU and IPD when working on the OMAP-L138 processor. The OMAP pins are classified according to pin groups such as CP[0], CP[1], CP[2], etc... Thse pin groups are...
View ArticleOMAP-L138 Internal Pulls
Hello,During reset, all IOs are pulled down. After reset, most IOs (except CP26-29) are pull high.With this approach, one of the states will not match HW requirements upon power-up. Thus, external...
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LCD backlight control using PWM/CAP pin in OMAP L138/AM18XX
Hi, I am working on AM1808 processor, I have designed my LCD back-light with the below pin mux configuration. I have configured ECAP2 & EPWM0 (#define PWM_DEVICE_ID "ehrpwm.0" &&...
View ArticleControlling OmapL138 EVM backlight
I am using the OmapL138 evaluation board and need to control the LCD backlight (userspace slider)I built the 03.22 kernel using instructions here...
View ArticlePlease respond to OMAP Default Internal Pullup/Pulldown Sept 8, 2011
Submitted by Colin Koo.I need to know whether there is any anomaly in terms of pulls up/down on the OMAP-L138.Thanks.
View ArticleOMAP-L138 - TRM 20.2.6 Data Bus Parking vs floating EMIFA data bus
Hello, let me raise a few questions about TRM section 20.2.6 - Data Bus Parking.1. The one exception to this behavior occurs after performing an asynchronous read operation while the EMIFA is in the...
View ArticleBooting the OMAP-L137 with SW5-2 on
Hi ALL,I am trying to boot the OMAP-L137 with SW5-2 on (SW2- set to spi-flash boot mode) to enable UART0.By doing so i2c is disabled,and I receive:EEPROM read @ 0x50 is failedandEthernet switch start...
View ArticleDSPLink DSP build error : directory's seperator removed.
Build DSPLink on DSPBios side error on WINDOWs host: Not know why the runif directory's seperator is removed. C:WorkTIdsplink_1_65_02_09dsplink should be C:/Work/TI/dsplink_1_65_02_09...
View ArticleFlashing uboot on omap-l138 expkit
Hello,Could someone present the detailed procedure of flashing uboot on the abovementioned board?When I try to acces uboot via com port I don't get any kind of response (empty terminal)When I try to...
View ArticleOmapl138E ARM boot problem.
Hello!I successfully had boot the security OMAP in NONSECURE mode through uart, and succesfully connect to DSP target by jtag (DSP works fine) but i cannot connect to arm processor.ARM9_0: Trouble...
View ArticleOMAPL138 workaround for known issue: SPIDAT0 is only able to handle max 16 bit
Hi,I know that the SPI interface on my OMAPL138 isn't able to transfer 24 Bit at once. I have to split this to a 8 Bit an 16 Bit word an submit them seperatly and holing the /CS for both transmits low....
View ArticleWhich BIOSPSP version to use?
We use the C6748 DSP. Recently a new BIOSPSP version was released, however it appears a lot has been removed (SPI, UART, BLOCKMEDIA, etc). The release notes are no help in trying to figure out what...
View ArticleAccessing to NAND Flash from embedded Linux on a based-OMAPL137 custom board
Hi guys!My R+D group has designed and built a more complete based-OMAPL137 custom board, taking as reference the OMAPL137 EVM of Spectrum Digital. One of the new elements is a NAND FLASH memory of...
View ArticleOMAPL-138 VPIF Linux
Hi mates! I work under the project based on OMAPL-138(eXperimenter Kit from LogicPD). I have ADV7180 video ADC. It gets video from its CVBS input, converts it to digital format and sends it to OMAP(ARM...
View ArticleCLKIN VPIF LCDK OMAP L138
Hello,I have problem with singnal which I send to CLKIN0 and CLKIN1 pins. I send this clk signal from sensor. When I send it wihout connection with Omap I can see on osciloscope good square signal, but...
View ArticleStarterWare SD Card driver
HiI'm using Logict PD L138 EVM and StarterWare -OMAPL138 v1.10.01.01. I need to write some data to and read from SD card in non OS application or with SYS BIOS, maybe using file sistem. for that...
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