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LMX2572: Output power flatness is not as excepted

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Part Number:LMX2572

Hi,

I measured the output power of LMX2572 and found out that there is a drop in power around 1700 MHz. This effect can be reproduced with the LMX2572EVM and my hardware. I tested with different OUTx_PWR settings on RFoutA and RFoutB.

How can the flatness be optimized?

Regards Samuel


CCS/LAUNCHXL-CC2650: Error when importing Project Zero for LAUNCHXL-CC2650 and hence it cannot be compiled!

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Part Number:LAUNCHXL-CC2650

Tool/software: Code Composer Studio

Hi.

According to the instructions for my previous question, I found Project Zero for CC2650 LaunchPad under the SimpleLink Academy folder. Using CCS import tool, I imported the project zero app and stack for CC2650 LauchPad. These projects are located at: C:\ti\simplelink_academy_01_11_00_0000\modules\projects\ble_projectzero\ccs. The errors I got are as follows:

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/icall/app/ble_user_config.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/icall/inc/ble_user_config.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/roles/gapbondmgr.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/dev_info/cc26xx/devinfoservice.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/dev_info/devinfoservice.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/oad/cc26xx/oad.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/oad/cc26xx/oad.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/oad/cc26xx/oad_target.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/oad/cc26xx/oad_target_external_flash.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/roles/cc26xx/peripheral.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/profiles/roles/cc26xx/peripheral.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/boards/CC2650_LAUNCHXL/CC2650_LAUNCHXL.c' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/boards/CC2650_LAUNCHXL/CC2650_LAUNCHXL.h' cannot be located!

       Error: File/directory 'file:/C:/ti/simplelink/ble_sdk_2_02_01_18/src/boards/CC2650_LAUNCHXL/Board.h' cannot be located!

As a result these projects could not be complied! BLE SDK 2.02.02.25 and SimpleLink Academy have already been installed.

I'd highly appreciate it if you can give me any solution for this. Thank you.

TPS3808: TPS3808

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Part Number:TPS3808

Dear  SIR:

(1) May I double confirming regarding TPS3808 spec Functional Block Diagram mention that have Adjustable Voltage Version and Fixed Voltage Version.

      Where have detail information for understanding which part is  Adjustable Voltage Version or Fixed Voltage Version?

(2)  Is TPS3808 spec Device Voltage Thresholds base on  Adjustable Voltage Version or Fixed Voltage Version ?

(3) For  Adjustable Voltage Version TPS3808  the SENSE pin  external R1 and R2 are necessary  ? 

      (or what's condition external R1 and R2 are necessary   ,what's condition external R1 is necessary and what's condition external R2 is necessary) 

(4) For  Adjustable Voltage Version TPS3808 ,If without R1 and R2 How to know(calculator) the Vth ?

(5) For  Adjustable Voltage Version TPS3808 ,If without R2 How to know(calculator) the Vth ?

Thanks

TMS320C5517: Clear voice solution

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Part Number:TMS320C5517

Hi,

Our application is to convert the muffled voice to clear voice, so we ordered c5517 Evaluation board. To test our requirement my understanding is follows :

 1. we need to connect PCM1864 Linear Microphone Board to c5517 evaluation board as per the design doc.

 2. Make sure that all connections and jumpers are as per doc.

After this i am expecting that without any SW coding involvement if we play some muffled voice at PCM1864 mic then we shoul hear clear voice from c5517 codec out ports.

Please let me know our expectation is correct.

Also want to know whether c5517 has built in MIC? 

Regards,

Sivaram

 

TUSB320LAI: USB 2.0 OTG to USB Type-C

TMP102: Serial Bus Address

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Part Number:TMP102

Hi Team,

TMP102 has different I2C address when A0 is connected to different pins as shown in the picture below.

What kind of circuit internally is used to have this function? Is there any app note about it? Thanks.

Best Regards,

Hao

Linux/CC2650: TI CC2650DK-7ID is not recognized by Ubuntu

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Part Number:CC2650

Tool/software: Linux

Hi,

   I tried using CCSV6 for programming CC2650DK-7ID. I don't get my device verified while creating my project. This is the message shown.

[Start]

Execute the command:

%ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -S integrity

[Result]


-----[Print the board config pathname(s)]------------------------------------

/home/student/.ti/ti/0/0/BrdDat/testBoard.dat

-----[Print the reset-command software log-file]-----------------------------

This utility has selected a 100- or 510-class product.
This utility will load the adapter 'libjioxds110.so'.
The library build date was 'Jul 27 2016'.
The library build time was '18:20:07'.
The library package version is '6.0.407.3'.
The library component version is '35.35.0.0'.
The controller does not use a programmable FPGA.

An error occurred while hard opening the controller.

-----[An error has occurred and this utility has aborted]--------------------

This error is generated by TI's USCIF driver or utilities.

The value is '-260' (0xfffffefc).
The title is 'SC_ERR_XDS110_OPEN'.

The explanation is:
An attempt to connect to the XDS110 failed.
The cause may be one or more of: no XDS110 is connected, invalid
firmware update, invalid XDS110 serial number, or faulty USB
cable. The firmware and serial number may be updated using the
xdsdfu utility found in the .../ccs_base/common/uscif/xds110
directory of your installation. View the ReadMe.txt file there
for instructions.

[End]

Can someone help me with the solution?

Thank you.

LP8863EVM: LP8863EVM cann't light LEDs

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Part Number:LP8863EVM

Dears

I used LP8863EVM connect to 6S8P LEDs (LP8860-LEDLOADEVM) ,but LEDs havn't light

I was follow the Quick Start-Up Procedure described in User Guide

• Connect USB cable between EVB and PC

• Connect external power supply to VIN: 12 V (typical), 5-A setting, output not enabled yet.
• Run the LP8863 GUI software and click ”Control” icon on left of GUI, then control window appears as in Figure 9

• Check ”EVM connected” mark on bottom of GUI software

• Press ”IFSEL Pin” button to select I2C interface

• Enable VIN power supply output

• Click ”Enable Pin” button on GUI software: boost converter starts working, and LEDs stay off without PWM input. I find Boost voltage is 42V.

• On PWM input control, check ”Enable” box of PWM input, select frequency and duty from drop-down boxes(50%default), and press ”Update” button,But LED havn't light, LED0-5 Volatge is 23V. Voost voltage is 42V.

So if I miss something?


TMS320F28075: Prototype card won't boot into flash or run in standalone mode after working for months

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Part Number:TMS320F28075

I am busy developing code for a board that uses a TMS320F28075F MCU.

The part code on my chip is TMS320F28075 PTPT YFC-66C25HW G4.

For months the code has being running fine, but recently the board won’t run in stand-alone mode, even though the project is configured to load the program to flash and to boot up and run from flash.

The strange thing is that If I roll back my code the problem disappears. I can then incrementally add in the new features I’m busy with (for example CAN) the card will boot up and run stand-alone fine. Then just when I think I’m out of the woods the problem reappears after small edits to parts of code that have been working for months.

I get the same problem when I try the code on another of my prototype cards.

Here is a summary of what I have observed:

After loading program using the debug interface in CCS and the XDS100v2 USB Debug Probe the application runs fine.

If I remove power to the board and disconnect the debugger and repower the board my application does not launch.

  • The board should be booting up in GET mode
  • Both boot pins GPIO72 and GPIO84 are pulled high with 56k resistors and I have confirmed that they are in fact pulled high (3.28V)
  • /TRST pin is low
  • The ERRORSTS pin is low
  • The /XRS pin is normally high (3.22 V) but pulled low at a frequency of 66.9 Hz (15ms intervals) where it stays low for 50 us, and then rises back up back 3 within ~800 us
  • The /VREGEN pin is low
  • The 1.2 V rail (Vdd) is at 1.21 V
  • The 3.3 V rail (Vddio) as at 3.29 V
  • The external crystal oscillator is oscillating at 20 MHz (verified with oscilloscope)

 

If I reload the program using the CCS debug interface and the board is reset with the debugger still connected, by pulling the /XRS pin low, then the code seems stuck looping in the boot28.asm code (PROCESS CINIT INITIALIZATION TABLE, at memory address 0913F5 in the disassembly window)

If I then cycle power on the card and launch the projects target configuration and connect to C28xx_CPU1 (using the XDS100 JTAG debug probe) and then click resume in the debug toolbar the code runs fine (although with the warning that no source is available for 0x3ff16a).

If I repeat this process, but load symbols (using the project’s out file), I can see the program is paused at address 0x3ff16a. If I then click resume the program runs normally (and I can set breakpoints and debug).

 

As my application has grown, I have had to adjust the cmd file.

  • so that the ‘ramfuncs’ can fit into RAMLS0, I’ve increased the length of RAMLS0, and removed the definition of RAMLS1 and LS2,
  • I’ve allocated RAMGS2 and RAMGS3 to .ebss, and
  • I have allocated FLASH F to .text (which I have attached)

I  have attached the cmd file and my applications map file.

Regards

Alex

/cfs-file/__key/communityserver-discussions-components-files/171/2807x_5F00_Generic_5F00_FLASH_5F00_lnk_5F00_cmd.txt

/cfs-file/__key/communityserver-discussions-components-files/171/acdy_5F00_scratch03_5F00_vartables_5F00_map.txt

SD card data retrieve

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HI All,

16 gb SD card interfaced to  MSp430F5329 controller and read & write operations are Done. 

now my doubt is  without FAT file implement, is it possible to access SD card data through laptop, means what every controller write data in to SD card, that data want to access through my laptop. 

PCM3070: Reduce the volume of audio high frequency.

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Part Number:PCM3070

Dear All

      How to reduce the volume of audio high frequency ,and keep the audio low frequency at the same time ? 

      Thanks a lot.

TPA3118D2: How to reduce the volume of audio high frequency ?

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Part Number:TPA3118D2

Dear All

      How to reduce the volume of audio high frequency ,and keep the audio low frequency at the same time ? 

      Thanks a lot.

CSD95372BQ5M: Expanded Typical Power Stage Efficiency and Power Loss curve...X-axis in 2A scale , Power Loss is 1W scale

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Part Number:CSD95372BQ5M

Hi,

I am trying to calculate the Power loss of CSD95372BQ5M in my design which different frequency, Inductor value and Vin etc. I know the Multiplier values for the respective parameters.

But The Typical Power Stage Efficiency and Power Loss curve given is not good enough to read the actual power. So it will be really helapful if you can provide me an expanded curve of the curve provided in data sheet.

Like X-axis  in 2A scale , Power Loss is 1W scale.

This helps me a lot in Power loss estimation.

I have some 60 no's of this Mosfet in my board and i should not end up in estimating less or more power loss.

Thanks

VVS Narayana

Replacement of ET1011C

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Hello,

Do you have any replacement suggestion for ET1011C Gigabit Transcevier.

Initially we are following the EVM design to use ET1011C with DM8168 processor.

However, it is difficult to get stock and would like to consider more common alternative if there is any.

I would also like to know if there is any impact in driver or software side in a change of Ethernet TX/RX.

Thank you for your help.

Regards,

This link don’t valid

Hi Alex,

 

Please check this thread: http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/100766.aspx

,please update link

DLPA1000: DLPA1000 to .2nHD DMD FPC question

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Part Number:DLPA1000

Due to low qualified rate of .2nHD optical machine production, revise PCB board and FPC,following questions arise.

(Please visit the site to view this file)

(Please visit the site to view this file)

(Please visit the site to view this file)

(Please visit the site to view this file)

1.DMD FPC V1.0 PCB question(FPC thickness:0.12MM):Power up start Projector,The projector screen is abnormal. The picture is as follows:

replace capacitance:DMD 32 pin/ DMD 40 pin/DMD 29 pin,4.7UF to1UF,The projector is as abnormal as the picture.One by one Remove capacitance When Remove DMD 29 pin,The projector screen is normal. The picture is as follows:

2. Modified FPC version(DMD FPC V2.0 FPC thickness:0.09MM  ) question:Power up start Projector,The projector screen is abnormal.No matter how to debug,The projector is as abnormal as the picture.

3.So how can we solve this problem? Can we give some suggestions?


TLC7135: can anybody explain me how we can read output from busy pin to micro controller?

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Part Number:TLC7135

can anybody explain me how we can read output from busy pin to micro controller?

CCS/CC1310: Working on two PC with SVN

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Part Number:CC1310

Tool/software: Code Composer Studio

Hi All,

I still have may problems when using CCS on a Work station and on a Laptop also together with SVN. If the Project being compiled fine on e.g. the workstation, then export it to an archive, and import it to the Laptop, the project won't work again and vice versa. Also using SVN Check in at e.g. work station and check out at the laptop usually won't work. Are there some best practise advices how to manage this?

Thanks.

Noge

TMS570LS0432: Is TMS570‘s drivers come from HALCoGen is free for mass production?

CCS/TMS320F28379D: How to program EMU_BOOTCTRL register or BOOTCTRL register?

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Part Number:TMS320F28379D

Tool/software: Code Composer Studio

Hi,

We have a board, that will use GPIO117 and GPIO118 as BOOTPIN0 and BOOTPIN1. How can I program EMU_BOOTCTRL register to test it?

In TRM there is little information about writing. In forum I found a topic, that says we can program it in our code.

*(uint32_t *)0xD00 = 0x76750B5A;      // EMU_BOOTCTRL, GPIO117, GPIO118, Flash boot, key
// OR
*(uint32_t *)0x7801E = 0x76750B5A;  // BOOTCTRL OTP, GPIO117, GPIO118, Flash boot, key

But my question is: Is EMU_BOOTCTRL in Flash? If I program EMU_BOOTCTRL register with my code then if I unplug the power then reinsert it, will it be the same value that I wrote to it? I wrote 0x76750B5A in address 0xD00 but after power on & off it has default value not 0x76750B5A.

Is BOOTCTRL only one-time programmable? Can I not program it with different value later?

Thanks.

AWR1642BOOST: DopplerCompensation in the virtual antennas.

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Part Number:AWR1642BOOST

Hi, in Dss_data_path.c (c:\ti\mmwave_automotive_toolbox_2_1_2\labs\lab0002_short_range_radar\src\dss)

void MmwDemo_addDopplerCompensation(int32_t dopplerIdx,
                                    int32_t numDopplerBins,
                                    uint32_t *azimuthModCoefs,
                                    uint32_t *azimuthModCoefsHalfBin,
                                    int64_t *azimuthIn,
                                    uint32_t numAnt)

It says that 

 * Function Name       :    MmwDemo_DopplerCompensation
 *
 * \par
 * <b>Description</b>  : Compensation of Doppler phase shift in the virtual antennas,
 *                       (corresponding to second Tx antenna chirps). Symbols
 *                       corresponding to virtual antennas, are rotated by half
 *                       of the Doppler phase shift measured by Doppler FFT.
 *                       The phase shift read from the table using half of the
 *                       object Doppler index  value. If the Doppler index is
 *                       odd, an extra half of the bin phase shift is added.

It is true that signal received when the second Tx antenna is working should be shifted by half of the Doppler phase shift measured by Doppler FFT.

However, I feel that “If the Doppler index is odd, an extra half of the bin phase shift is added" makes no sense, and I cannot figure it out.

Could our algorism engineer give us a detailed explanation?

    /* Add half bin rotation if Doppler index was odd */
    if (dopplerIdx & 0x1)
    {
        expDoppComp = _cmpyr1(expDoppComp, *azimuthModCoefsHalfBin);
    }

Thanks a lot.

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