Quantcast
Channel: Forums - Recent Threads
Viewing all 262198 articles
Browse latest View live

LAUNCHXL-CC26X2R1: CC3200AUDBOOST setting for 8K sample rate

$
0
0

Part Number: LAUNCHXL-CC26X2R1

Hi

We would like add the MCLK speed to 4MHz, could you help provide the audio setting for 8kHz sampling frequency with MCLK as clock input (MCLK frequency is 4 MHz)?

case 8000: // Fs = 8kHz, MCLK = input to PLL, MCLK = 1MHz (MCLKDivider = 12)

Thanks.

BR

Trevor


CCS/TMS570LC4357: import C:\ti\Hercules\Hercules Safety MCU Demos\4.0.0\TMS570LC43x_target_sources issue

$
0
0

Part Number: TMS570LC4357

Tool/software: Code Composer Studio

Dear Sir/Mdm

    when using CCS 9.2.0 to import CC:\ti\Hercules\Hercules Safety MCU Demos\4.0.0\TMS570LC43x_target_sources:  and found the project folder  is empty , not sure the reason....any body now the reason, do need add the file one by one? thanks!

BQ24230: without battery issue

$
0
0

Part Number: BQ24230

We have two module for BQ24230 application , one is with battery and the other is non-battery .

With battery, our system boot fine. 

But without battery condition, our system boot failed ..Do the BQ24230  support only Vin from 5V ? Or I need to do something... (TS pin is pull down with 10K ohm)

(

UCC28220: Minimum switching frequency

$
0
0

Part Number: UCC28220

Dear all,

I'm involved in a project based on a hard switched buck converter.

The ratings are the following: Pout: 80KW, Vin: 800V, Vout: 600V - 100V; switch technology: IGBT; 2 interleaved non synchronous buck.

Due to the high current, we prefer to use the IGBT as active switches and we would like to implement an interleaved buck as stated above.

I was suggested to use the LM5032 or the UCC28220, but them are rated for a switching frequency range above 100khz that is not suitable for IGBT.

Am I right that the minimum switching frequency for the LM5032 is 90Khz as stated in the Fig7 page 8 of the datasheet and the minimum switching frequency for the UCC28220 is 45Khz as stated in the fig 13 pag 10 of the datasheet?

I know that the IC switching frequency is twice the converter's switching frequency so the real values will be 45khz for the Lm5032 and 22.5Khz for the UCC28220.

In case I'm right and the switching frequency are too high for my application, does TI have any IC suitable for my structure?

Best regard

Luca

AM5728: I2C and SPI C code for linux gcc on TMDSEVM572x

$
0
0

Part Number: AM5728

hello

I need to write C code on Linux sdk and compile it with gcc for running I2C and SPI interfaces.

the I2C is needed for initializing some video input codecs such as TVP5150AM. 

the SPI  is needed for initializing HDMI video input interface such as ADV7611.

as an other main question, could anybody please give me some guidelines for writing C code to capture video from TVP5150 and ADV7611?

thanks very much,

Ali

ULN2803A: Interfacing ULN2803A with TIVA TM4C1294 - Pull up at input of ULN2803A

$
0
0

Part Number: ULN2803A

In one of our new design we are using ULN2803A for driving Relay. Circuit is as given in attachment.

Please confirm whether PULL DOWN is required an Pin1 of ULN2803. And also confirm whether schematic is correct.

Thanks in advance.

TPS27S100: About the Protection Normal.

$
0
0

Part Number: TPS27S100

Hi team.

I'd like to know about the Protection normal in the data sheet (p.19 table 2)

What protection does protection normal have when diag is turned off and EN is turned on?

Sincerely.

Kengo.

TPS57160-Q1: Low Dropout Operation

$
0
0

Part Number: TPS57160-Q1

Hi team,

My client designs power supply based on TPS57160-Q1 with Vout=7V.

During cold crank, the Vin can drop to 6V for 50ms. We need to configure the TPS57160-Q1 in such way that the device just needs to transmit 6V directly to the output during the cold crank. Right now, the client is seeing some oscillations/pulsations on the output.


Can you please advise how we can make TPS57160-Q1 to enter into low dropout operation and achieve 100% duty cycle?

This will be fine if you can provide some example schematic with exact values of passive components around TPS57160-Q1.


Compiler/TMS320F28069M: Add sci.c and sci.h files

$
0
0

Part Number: TMS320F28069M

Tool/software: TI C/C++ Compiler

I add the sci. c to the sci. h file as a file, and there is a function when the interrupt is not used, but I don't know the meaning of this function:

if(SCI_rxDataReady(halHandle->sciBHandle))
      {
          while(SCI_rxDataReady(halHandle->sciBHandle) == 0);
          dataRx = SCI_getDataNonBlocking(halHandle->sciBHandle, &success);
          success = SCI_putDataNonBlocking(halHandle->sciBHandle, dataRx);
      }

What is dataRx? How do you define it? Is it the same meaning as dataRx in the following function?

What is success, how do you define it? What does it mean the same as&success?

If I want to send 5AA504 80030001 screen will change;
The received data is sent by the screen and needs to be judged, what is the representation of the received data here?

Thanks!!!!

SN65DSI86: power dissipation for SN65DSI86 &SN65DSI84

$
0
0

Part Number: SN65DSI86

Hi Team,

As title, Do we have power loss information could to share with customer for  SN65DSI86 &SN65DSI84?

Best Regards,

Mark

DRV8886: How to control using the command line

$
0
0

Part Number: DRV8886

Hi, DRV8886 support team

My customer ask me how to control using the command line to do the cycle testing.

Do you have any idea to use the command line instead of GUI Tool?

Thanks

Tamio

LMR14006: is the amount of current IC trips the current limit meaning "RMS" or "Peak" ?

$
0
0

Part Number: LMR14006

Hi, Team.

could you tell me below?

is the amount of current IC trips the current limit meaning "RMS" or "Peak" for LMR14006?

CC2640R2F: CC2640R2F: GAP_UpdateLinkParamReqReply() issue.

$
0
0

Part Number: CC2640R2F

CPU:CC2640R2F

SDK:simplelink_cc2640r2_sdk_3_30_00_20

Problem Description:

The paramUpdateDecision of the Bluetooth module is set to "GAP_UPDATE_REQ_PASS_TO_APP". When the mobile phone actively connects to the Bluetooth module, and sends a connection parameter update request to the Bluetooth module. See below:

After receiving the message, the Bluetooth module uses the "GAP_UpdateLinkParamReqReply ()" function to return a response with the following connection parameters:

// Minimum connection interval (units of 1.25ms, 80=100ms) for parameter update request
#define DEFAULT_DESIRED_MIN_CONN_INTERVAL 22 // 12.5 + 5*n ms

// Maximum connection interval (units of 1.25ms, 800=1000ms) for parameter update request
#define DEFAULT_DESIRED_MAX_CONN_INTERVAL 34 // 42.5 ms

// Slave latency to use for parameter update request
#define DEFAULT_DESIRED_SLAVE_LATENCY 0

// Supervision timeout value (units of 10ms, 1000=10s) for parameter update request
#define DEFAULT_DESIRED_CONN_TIMEOUT 500

But I captured the packet and found that the connection parameters of the sent packet are like this, as shown in the figure below:

What's happening here?

SN65HVD82: SN65HVD82

$
0
0

Part Number: SN65HVD82

Hello,

When the SN65HVD82 power up, all the input and output ports are float,  what is the Pin D  voltage value?

The input equivalent circuit is as follows, Pin D is pulled high to VCC, but the tested voltage is about 1/2 Vcc.

Best regards

Kailyn

CC2642R: Memory error while compilation

$
0
0

Part Number: CC2642R

Hi,

I'm getting below error while compiling my custom program. My application is based on Simple peripheral example.

I'm using CCS  Version: 9.2.0.00013 and SDK simplelink_cc13x2_26x2_sdk_3_30_00_03

"configPkg/linker.cmd", line 649: error #10099-D: program will not fit into available memory. placement with alignment fails for section ".resetVecs" size 0x3c , overlaps with ".TI.bound:flashBuf0", size 0x2000 (page 0)

error #10010: errors encountered during linking; "simple_peripheral_app_CC26X2R1_LAUNCHXL_tirtos_ccs.out" not built

Regards,

Madhusudhan


MC33078: ESD Rating of MC33078DR

$
0
0

Part Number: MC33078

What ESD rating of MC33078DR?
Although we checked datasheet and we confirmed with TI Customer support center,we could not find any information.

Best regards.

LP5030: design with different bias voltage for VLED

$
0
0

Part Number: LP5030

Dear expert, 

Customer design RGB led driver with our LP5030, and would like to connect different bias voltage source for each LED channel.

Is there any risk for this application?

Ben

BQ25895M: Design review and default mode settings, host mode settings for BQ25895M IC

$
0
0

Part Number: BQ25895M

Hello Community,

I am making power supply section for one project for that I used BQ25895M IC. I am not using host mode.

In default mode Vbat and Vsys output should be 4.2V and PMID voltage in boost mode 5.1V.

When I measure using DMM boost mode voltage is 4.8V, Vbat is 1.7V and Vsys is 2V.

Supply  is given from LM2576-5V, 3A, TS pin has 10K voltage divider

I am using 2 layer PCB for the design.

can you review my design? and suggest why output voltage is not coming as per default.

How can I make IC work in host mode as well?

Thanks and Regards,

Nikunj Panchani

ADS1299: ADS 1299 EVM firmware

$
0
0

Part Number: ADS1299

hello

please explain how to download the firmware to the EVM.

thanks

HW

TAS5782M: No Subwoofer Output on SDOUT

$
0
0

Part Number: TAS5782M

Hi 

I'm working on 2.1 System with TAS5782m together with a TAS5760 as Subwoofer. When I set the Output Crossbar in PurePath Console to Woofer => Left I2S and Woofer => Right I2S I don't have an audio output on the SDOUT Pin (also if the crossover filters are disabled). With the settings Left T => Left I2S and Right T to Right I2S I have a signal. I also tried to set SDOUT origin to pre-processing. This case also worked. 

Is there any special parameter for enabling the woofer?

Thanks in advance for your reply!

Viewing all 262198 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>