PHY requires RMII hold time
Hi, The PHY we are using on our custom board has an errata which states that the "MIN required RMII hold time is 7ns. should be 2ns per spec." What registers control the RMII delay for the data...
View ArticleEVM OMAPL137 Installing the SDK Software, installation location
Hi,I'm using the EVM (revision I) for OMAPL137. I'm trying to install the SDK software by following the wiki page:http://processors.wiki.ti.com/index.php/Installing_the_Software_for_OMAP-L137I've put...
View ArticleC6748 calculate time for 10k , 50k, 100k samples FFT
Dear:I want to choose the C6748BZWTA3 for FFT calculate.And i want to know the calculate time for 10k , 50k and 100k sample FFT. If use the external RAM to calculate, please also offer the type of...
View ArticleHow debug secured C6748 with DSP BIOS based application when exit mode is...
Hi, we using generic secured C6748 for our project.1. I experience an issue with debugging DSP BIOS based application when exiting in SECUREWITHSK boot exit mode.2. I have no problem with debugging...
View ArticleOMAPL138: TM64P3_OUT12 pin
Hi,I'm trying to trigger AD-conversion by the external pin of an timer. I have in general 2 questions about the timer output pin TM64P3_OUT12:1.) Is there any difference between the pin TM64P3_OUT12...
View Article6748 NDK porting
Hi, I am porting the NDK stack onto our custom board. We are using the 6748 with a different PHY chip that what is on the 6748 LCDK. We are running in RMII mode. I First tested my code without...
View ArticleC6748 LCDK- How to access registers in C?
Hello.I have C6748 LCDK and I want to learn some basics. First I wish to control led´s. I want to switch off the led D4.I found in manual, that D4 is connected with processor via GPIO6[13].To switch...
View ArticleHow to serial programming omap-L137/AM1707 bootloader ?
HiIhave triedthe SPIbootofOMAPL137/AM1707by reference to thefollowing pageshttp://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137Ihave triedthe...
View ArticlePower rail detection by SW on AM1808 ?
Hi,AM1808 supports dual-voltage IO group (A, B or C).Just a quick question : Can I detect which power (1.8 or 3.3) is being in use on each power group by SW (something like by reading dedicated...
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Cannot set EDMA3’s IER registers even when DRAEn enabled
Hi,For EDMACC0 on L138 whose base address is 0x01c00000 according to <SPRS586C, Table 2-4. Top Level Memory Map>, even if I have set all DRAE0 bits to 1 for the ARM core, I found I still cannot...
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 ArticleEDMA3 UART/block transfer on L137
HiI have some problems with our DMA configuration and do not understand how this can happen. There is the following scenario:DMA Queue/TC 0Gets events from UART 0 RX (Channel 8)UART Configured with 1.5...
View ArticleC6748 ROM bootloader SPI_ENA pin usage
Hello,Is ROM bootloader on C6748 using SPI_ENA pin if it is booting from SPI flash?The problem is that my application image is about 700 KB and I would like to load it as fast as possible. I came up...
View ArticlePerformance considerations, DSP
I have the OMAP-l137 running at 300mHZ and suppose that I have a clock that is giving 300.000.000instructions/sec, if I have a sample rate at 20KHZ, equals 15.000 cycle/sample to complete the sample...
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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 ArticleAM1808 DDR2 Size increase
Hi, I am working on AM1808 processor, at present I am running my DDR2 with 64MB, I have another design which I want to increase my DDR to 128MB. What are the changes required to be done at 128MB,...
View ArticleUSB Host stops working when DVFS takes place on OMAP L138EVM Board.
Hi All, I am working on USB Host Driver for omapl138 platform from Logic PD. I have implemented a host driver and it works flawlessly. BUT when CPU freq changes the driver stops working. The moment...
View ArticleHow to support OMAPL138 on DSPLink 1.62
Questions:dsplink_1_62_02 ( from TI ) can't be configured as OMAPL138 platform. How to support it? Is it easy?>dsplinkcfg.bat****************** ERROR !!! ***************************Please provide a...
View ArticleUSB Gadget mode on AM1808
Hello,I'm using an AM1808 on a custom mode and am trying to setup up the kernel for usb gadget mode but the board is always booting up in host mode still.In the kernel configuration (using...
View ArticleVPIF configuration for raw capture
We are using a omapL138 EVM from calixto and interfaced an Omnivision 2MP sensor. We are trying to capture a RAW image(1600x1200 ,UXGA(RAW) 7.5fps) via the VPIF input interface using the sample vpif...
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