Clik here to view.
TPS23756 Problems, EVM design files
I'm currently trouble shooting a design based around the TPS23756. It is based on a mix of the various flyback reference design for this series of parts, and is to have an output of 5V/3A. The result...
View Articleissues in GPMC interfacing of FPGA DDR3
Hi,We are using DM814x processor and FPGA in our custom board. A 2Gb DDR3 is connected to FPGA. We should interface with DDR3 using GPMC connected to FPGA. I've written FPGA driver for I2C and SPI...
View ArticlePCM2900C descriptors
hello. according to the pdf for the pcm2900c, the descriptors can be changed. does anyone know how this is done? after alot of searching i cant seem to find an answer. the reason i want to be able...
View ArticleCC256x, Bluetooth 4.0 & Apple MFI
I need to develop an interface to transfer data into an Apple iOS device in real time at a high speed, as fast as possible.I have read that if I use Bluetooth 4.0 I do not need to join the AppleMFI...
View ArticleDS92LV2411 Clock source
I am using a 2412 on my product. for testing purposes i would like to send my product non synchronous data using a 2411. My board does not require a processor so I want to drive the clock of the 2411...
View ArticleClik here to view.
TL16C550D issue
Hi Sir,We have used TL16C550C many years. Now, we want to replace TL16C550C to TL16C550D.We have a problem. When we tx" FB,FC,FD,FE,FF" code, the RX always receive "00" code.If the TL16C550D "A01 &...
View ArticleWl1283 WiFi + BT + GPS support for Android ICS
Hi We are designing ANDROID custom device with the reference of AM335xevm_SK kit. WL1271 ( Wifi + BT ) is used in SK kit for wireless and Bluetooth, But we planned to implement the murata module...
View ArticleHelp! Not working WLAN(TI WL1271) SDIO card on OMAP4430.
Hi, everyone!Itry to usewifi(TI WL1271) sdio cardonBlaze(). I saw following error message when mounted on card: wl12xx: ERROR nvs size is not as expected: 1113 != 912Sowas replaced...
View ArticleBooting from NAND flash on TMCXEVM6657LE evaluation module
I am attempting to boot a TMCXEVM6657LE evaluation module from its NAND flash, but it doesn't appear to work.Without going into a lot of details, here is what I did:Built an executable that flashes the...
View Articlewl1281:the WiFi will stop the data transfer during download
Hi,I am working on a board based on OMAP4460.Use the wifi chip on the board is wl1281.I use wget to download via wifi a 1.5G file,The course of data downloaded will stop data...
View ArticleBIOS Resource Conflict Exception
Hi,I am trying to run a multi-core application for TCI6638 and the code crashes on all the cores stating that it's a resource conflict exception. When I checked the disassembly, it seems to exit in the...
View ArticleNeed clarification on DRV2605 please!
I have the EVM with me and would like to implement the DRV2605 into the design. I was told by our CEO that the haptic is an external piece of software which is a protected IP that can only be used if...
View ArticlePTD08210W PCB layout and schematic?
HI there,My customer is seeing switching noise from the TI UCD7242 (required for the 1V variable supply for the DSP) is getting into the ground reference and is then present in all other voltage...
View ArticleIBL - load time issue
Dear TI,We have a board built on C6670 architecture (2 DSP's on the same board). We have been able to boot from PCI straight demo RBL on a regular PC.We we are having problems inserting our board in a...
View ArticleBuck PSU - 10~32VIN with FSW >= 600KHz (TPS54240 / TPS63020 doubts)
Hi.I am designing a new GPRS/GPS product, where one concern is the peak current consumption during GPRS transmission.Attached is the part of the datasheet of the GPRS module that we will use, regarding...
View ArticleTl331 and suitable resistors value to form a square pulse out of it
I want to use/cut the output signal characterized as+-10V, 31 kHz, and dutyfactor 0.5 +-5-10% from the seconary side/ secondary coil of a Flyback topologie as a 5V controlsignal.The pulsewidth of...
View ArticlePCM2906C application question
Dear SirHere have some PCM2906C application question with you,*. May PCM2906C can use in XP(SP3)? due to Mic function is disabled at Windows XP(SP3), but Speaker function is fine at Windows...
View Articlespeech recognition
Hii I m working on a speech recognition project dsp 6713 and code composer studio. Can anyone tell me how to store the voice samples in dsp so that they can be processed later?
View Articlehacking sd card example with udma.
Hi TI,I am wondering how do I hack the sd card example to use the SSI with uDMA instead. I'm attaching my hacked up version of mmc_conncerto.c. I want to send at least 512 chunks of data to the sd...
View ArticlePCM2912A - XP does not retain microphone level setting after USB unplugged
We need to have the PCM2912A microphone level setting retained after it is unplugged/replugged. The Set-Up Guide (SBAU141, pg 26) for the demo board says:"Microphone Volume Windows for Record Volume...
View Article