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

CCS/IWR1642BOOST: Unable to install CCS8

October 22, 2018, 12:44 pm
$
0
0

Part Number:IWR1642BOOST

Tool/software: Code Composer Studio

Hi,

Its details are:

@xxxxx-OptiPlex-390:~/mmwave/CCS8.1.0.00011_linux-x64$ uname -a
Linux xxxxx-OptiPlex-390 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:06:14 UTC 2016 i686 i686 i686 GNU/Linux

I am trying to install CC8. On running CCS bin file, got format error.

bash: ./ccs_setup_linux64_8.1.0.00011.bin: cannot execute binary file: Exec format error.

also did:

XXXX-OptiPlex-390:~/mmwave/CCS8.1.0.00011_linux-x64$ sudo apt install libc6:i386
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libc6 is already the newest version (2.23-0ubuntu10).
0 upgraded, 0 newly installed, 0 to remove and 600 not upgraded.I have Ubuntu16.04 Desktop.

But error persist.

Please check.

Best Regards,

Vikas

↧
Search

SCANSTA112: TRSTb, TLR_TRST, TLR_TRST6

October 22, 2018, 12:49 pm
$
0
0

Part Number:SCANSTA112

Hi,

I am designing a board where I need to multiplex 32 JTAG devices(FPGAs). As per the plan the devices are divided it into 8 chains with 4 devices each. 7 chains are connected to each of the LSPs of the STA112 and for the remaining 1 chain, a separate JTAG programming connector will be used. STA112 will be in transparent stitcher mode. 

I have the following questions related to the design:

1) What is the difference in the affect of TRSTb on STA112 and affect of RESET on STA112?

2) In transparent stitcher mode, does TRSTb reset the STA112 logic? Is there some way to mask it in this mode?

3) Can we use the TLR_TRST and TLR_TRST6 in transparent stitcher mode to drive the TRST of the unselected LSPs?

4) Is there a limit on the number of devices that can be connected to each LSP port? Can we connect 8 devices? If we could eliminate that one extra JTAG connector it would be great.

Shruti

↧
↧

EK-TM4C123GXL: EK-TM4C123GXL: ADC input impedance

October 22, 2018, 1:05 pm
$
0
0

Part Number:EK-TM4C123GXL


Hi everyone.

I working with a Tiva C 123 (TM4C123GH6PMI MCU). My application goal is read the analog value of a pressure sensor (0.5V-4.9V, output voltage). Thinking about in some measurement errors, e.g. If the source is low-impedance and the ADC is high-impedance, one could lower the value of the voltage divider, e.g. 1.7k:3.3k. This might introduce some measurement errors, e.g. if the the ADC input has a large capacity on the input and hence the inrush current during the sampling period might lead to a voltage drop. In this case I want to know if the input impedance of the TM4C123GH6PMI MCU ADC channels is high and his value, but I did not found it in the datasheet. n which section of the datasheet this information appear?


Thanks.

Best regards.

↧

TLC393: Current Consumption

October 22, 2018, 1:19 pm
$
0
0

Part Number:TLC393

Hello,

I'm using the TLC393 as a 12V voltage comparator, but also need to keep the current consumption really low.

The problem is that some IC's show a low consumption, about 250 uA, and others (10% of them) a really high consumption, about 700+ uA.

Is this range normal to this IC?

Couldn't find this info in the datasheet.

↧

CC2640R2F: Seeking experienced BLE firmware engineer for med device development

October 22, 2018, 1:33 pm
$
0
0

Part Number:CC2640R2F

Not sure if this is a good place to ask (see no prohibition in terms of use) but the general freelance developer websites have not produced results so here goes... We are a small med device start-up looking to expand our team with a firmware engineer familiar with development of BLE enabled solutions using the CC26xx platform. Project is underway on a custom CC2640R2F board and we need additional resources with the ability to work 20-40 hours per week for several months at least. Key areas of development are robust and secure BLE data transmission, power conservation, and compatibility with existing clinical workflows. Please contact me directly (jonathan.engel at suramedical.com) to discuss details. Thanks to the community for being a generous and outstanding resource!

↧
↧

CCS/MSP432P401R: EnergyTrace graph export

October 22, 2018, 1:35 pm
$
0
0

Part Number:MSP432P401R

Tool/software: Code Composer Studio

Hi,

is it anyhow possible to export graphs Energy/Current etc. that EnergyTrace produces?

Thank you in advance!

↧

TPS62740: Maximum source impedance on the EN pin

October 22, 2018, 1:48 pm
$
0
0

Part Number:TPS62740

Hello,

Could you please advise what is the maximum source impedance permissible on the Enable pin for the TPS62740?  I would like to use a 10 M pull up resistor so I can minimize the leakage current when I put the device in ship mode.  A 10 M resistance with a 3.6V battery would have a 360nA leakage.

From the datasheet, page 5 shows the input bias current is 25nA.  So, with a 10 M pull up that would cause 0.25V drop which would satisfy the VIH for a battery voltage of at least 1.35V.

Is there anything else I need to consider with regard to the impedance of this pull up?

Thank you,

Steve

↧

MSP-EXP432E401Y: TI cloud issue

October 22, 2018, 1:55 pm
$
0
0

Part Number:MSP-EXP432E401Y

When I connect my xds110 to my computer, the ti cloud device detector states that additional drivers are required to auto detect my device. 

I have the agent installed, the extension in Chrome, and the device is recognized by Windows 10 Pro. When I click on the install button, I get an error message: This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the Default Programs control panel 

What file extension is this referring to? Please help! 

Thanks, 

Michelle.

↧
Search

BQ24610: Simulated load for functional testing of the charging circuit

October 22, 2018, 2:04 pm
$
0
0

Part Number:BQ24610

I need to perform a functional test on the attached battery charging circuit. The battery to be charged is 7.2V, 9.0Ah, 64.8Wh, Li-ion rechargeable. Originally, my customer indicated a 5.1 ohm, 15W resistor would be an acceptable simulation of the battery, however he apparently neglected to account for the battery detection scheme employed by the BQ24610. After I pointed this out, he directed me to simulated the battery load. Should I be able to simulate the battery, and thus test the charging circuit, using something like a NI PXI-4130 SMU, http://www.ni.com/en-us/support/model.pxi-4130.html? Any other recommendations?

Following is an outline of the test procedure employed:

1. Connect an electrical simulation of the Smart Battery at the Power Board battery connector J2.7 (V_BATT) with respect to GND.

2. Apply a 10K resistor across Power Board R27 (NETJ2_5 to GND).

REFERENCE: This will trick the charger into thinking it’s at a constant 25 deg C. and will allow the charger circuit to work.

3. Apply External Power (15.0VDC ±5%) current limited to 2.0ADC with respect to GND.

4. Measure the voltage at the Power Board battery connector J2.7 (V_BATT) with respect to GND. Record the result.

REFERENCE- Battery charger testing does not include charge-rate, or other design verification testing – only checking the charger responds to external power and switches voltage to the battery terminals when voltage is low.

5. Observe the digital state on net ACDRV. Record the result.

6. Measure the voltage on the signal generated by net BATDRV_N (J3.20) with respect to GND. Record the result.

7. Observe the digital state on CHARGING_N. Record the result.

8. Observe the digital state on CHG_COMP_N. Record the result.

9. Observe the digital state on PWR_GOOD_N. Record the result.

10. Observe the digital state on CHARGE_ENABLE. Record the result.

11. Observe the digital state on LOW_CHARGING_LEVEL. Record the result.

12. Disconnect the previous resistor from Power Board R27 (NETJ2_5 to GND) and apply resistor of 3.02k±5%, ≥1/16W Ohm across Power Board R27 (NETJ2_5 to GND).

REFERENCE: This will trick the charger into thinking it is above its high temperature threshold.

REFERENCE: Customer requirement is to only test at valid temperature and one invalid temperature. (“only validate the function once”)

13. Measure the voltage at the Power Board battery connector J2.7 (net V_BATT) with respect to GND. Record the result.

14. Disconnect the previous resistor from Power Board R27 (NETJ2_5 to GND).

↧
↧

RTOS/CC1310: Improving radio performance

October 22, 2018, 2:05 pm
$
0
0

Part Number:CC1310

Tool/software: TI-RTOS

Speaking of the difference between 1.60 and 2.20 SDK, can somebody help translate the initializer values below? The first are ones recommended for use with SDK 1.60. As you can see, the second have changed field names but also the last three are quite different. Any recommendations would be appreciated. We're using EasyLink_Phy_Custom for one application and EasyLink_Phy_625bpsLrm for another, with the former having potentially high collision rates with many sensor nodes banging on a small number of concentrators.

const RFCC26XX_HWAttrsV2 RFCC26XX_hwAttrs = {
    .hwiCpe0Priority = INT_PRI_LEVEL7,//~0,
    .hwiHwPriority   = INT_PRI_LEVEL7,//~0,
    .swiCpe0Priority =  5,//0,
    .swiHwPriority   =  5,//0,        
}
const RFCC26XX_HWAttrsV2 RFCC26XX_hwAttrs = {
    .hwiPriority        = ~0,       /* Lowest HWI priority */
    .swiPriority        = 0,        /* Lowest SWI priority */
    .xoscHfAlwaysNeeded = true,     /* Keep XOSC dependency while in stanby */
    .globalCallback     = NULL,     /* No board specific callback */
    .globalEventMask    = 0         /* No events subscribed to */
};

Regards,

↧

SN74LVC08A: Don't solder the exposed thermal pad

October 22, 2018, 2:08 pm
$
0
0

Part Number:SN74LVC08A

In my circuit this QFN-packaged IC is largely static, so I don't need the die-attached pad for thermal reasons.  Do I need to solder it to a thermal pad on the PCB anyway?  If so, should it be grounded or left floating?  Thanks.

↧

TPS22904: TPS22904 and TPS22902B pin compatibility

October 22, 2018, 2:14 pm
$
0
0

Part Number:TPS22904

Is the pinout indicated in the datasheets for the two subject parts (TPS22904 and TPS22902B) correct (i.e. mirrored)?  If so, I am looking for a 22904 pin-compatible part with a slower slew-rate.  Any options?

↧

Linux/PROCESSOR-SDK-AM437X: Bitbake: pointers for adding new dts file and bootloader changes to recipes?

October 22, 2018, 2:21 pm
$
0
0

Part Number:PROCESSOR-SDK-AM437X

Tool/software: Linux

Wondering if anyone has pointers to relevant threads on this topic before I dig into this process?

↧
↧

IWR1642BOOST: People Count. Configuration file for long range

October 22, 2018, 2:25 pm
$
0
0

Part Number:IWR1642BOOST

In this document: TIDEP-01000

There is reference to a long range set of configuration values.  Can someone point me to the link where I can get these configuration settings.

↧

CCS/LAUNCHXL-F280049C: SYS/BIOS

October 22, 2018, 2:26 pm
$
0
0

Part Number:LAUNCHXL-F280049C

Tool/software: Code Composer Studio

Hi,

                   I am trying to complie a sample project for sysbios. I imported from resource exploerer. I am unbale to compile it . Please help.Below are the errors-

"../280049C_FLASH_lnk.cmd", line 73: error #10099-D: program will not fit into available memory.  placement with alignment/blocking fails for section ".text" size 0x313f page 0.  Available memory ranges:
   FLASH_BANK0_SEC1   size: 0x1000       unused: 0x1          max hole: 0x1       
   FLASH_BANK0_SEC2   size: 0x1000       unused: 0x0          max hole: 0x0       
   FLASH_BANK0_SEC3   size: 0x1000       unused: 0x0          max hole: 0x0       
"../280049C_FLASH_lnk.cmd", line 82: error #10099-D: program will not fit into available memory.  placement with alignment/blocking fails for section ".econst" size 0x1dc3 page 0.  Available memory ranges:
   FLASH_BANK0_SEC4   size: 0x1000       unused: 0x1000       max hole: 0x1000    
"../280049C_FLASH_lnk.cmd", line 80: error #10099-D: program will not fit into available memory.  run placement with alignment/blocking fails for section ".ebss" size 0xd5d page 1.  Available memory ranges:
   RAMLS5       size: 0x800        unused: 0x800        max hole: 0x800     
"configPkg/linker.cmd", line 72: warning #10097: memory range not found: D01SARAM on page 0
"configPkg/linker.cmd", line 71: error #10265: no valid memory range(null) available for placement of ".text:ti_catalog_c2800_initF2837x_flashfuncs"
"configPkg/linker.cmd", line 71: error #10099-D: program will not fit into available memory.  run placement with alignment/blocking fails for section ".text:ti_catalog_c2800_initF2837x_flashfuncs" size 0x27 page 0
"configPkg/linker.cmd", line 71: warning #10097: memory range not found: FLASHA on page 0
"configPkg/linker.cmd", line 71: error #10265: no valid memory range(null) available for placement of ".text:ti_catalog_c2800_initF2837x_flashfuncs"
"configPkg/linker.cmd", line 71: error #10099-D: program will not fit into available memory.  load placement with alignment/blocking fails for section ".text:ti_catalog_c2800_initF2837x_flashfuncs" size 0x27 page 0
error #10010: errors encountered during linking; "task_TMS320F280049C.out" not built
↧
Search

IWR1642BOOST: Zero entries in the point cloud data

October 22, 2018, 2:30 pm
$
0
0

Part Number:IWR1642BOOST

I have observed data points in the point cloud data where everything is zero.  range, angle, doplpler and snr are all zero.  Why does the sensor send points filled with zeroes.

Also, There is no information on what the doppler data means.  I've seen positive and negative values.  There is no direction associated with the values.  How does the target software convert doppler readings to velocity and acceleration. 

↧

TMS320F28379D: Shadow load mode control does not work when using HRPWM

October 22, 2018, 2:47 pm
$
0
0

Part Number:TMS320F28379D

I'm working on a project which uses HRPWM (up-down count mode, fixed frequency and phase) to change duty cycle twice per PWM period by updating CMPA/CMPB at both TBCNT=0 and TBCNT=PRD. Today I noticed that my duty cycle is only changing when TBCTR=0. I've verified that CMPCTL[LOADAMODE] and CMPCTL[LOADBMODE] and their HR counterparts are set appropriately. Strangely, the output (as seen on a scope) doesn't change even if I set it to update on TBCNT=PRD only, as if my settings were being ignored. Stranger still is that if I stop the program with the debugger right before/after TBCNT=PRD, the SHDWAFUL/SHDWBFULL bits in CMPCTL do get cleared, as if they were being updated properly (but still the scope says otherwise).

The only way I can get the shadow loading to happen on TBCNT=PRD is by completely disabling the HR functionality (leaving all HRCNFG, HRCNFG2, HRPCTL, etc registers at default values), but I can't figure out why. The only clue is one sentence in the TRM (section 15.2.2):

Shadow Mode — This mode provides the same shadowing (double buffering) option as in regular PWM
mode. This option is valid only when operating from the CMPAHR, CMPBHR and TBPRDHR
registers and should be chosen to be the same as the regular load option for the CMPA, CMPB
register. If TBPHSHR is used, then this option has no effect.


I'm not implementing any high res phase modulation, but I do set HRPCTL[HRPE] and HRPCTL[TBPHSHRLOADE], as is necessary in up-down count mode (I'm synchronizing multiple interleaved phases). Is this somehow the source of the issue?

Regards,

Mike

↧
↧

BQSTUDIO: Battery Characterization

October 22, 2018, 2:47 pm
$
0
0

Part Number:BQSTUDIO

Hi, 

I have a Lithium Ion battery and I am planning to use BqStudio to find out the ChemID in order to either pick a ROM type gauge (if the deviation is less than 3%) or go with a Flash type. I have read the technical documents and the forum but I still have the following questions:

- It looks like the process would take around 20 hours to generate the data because of the timing requirements. I was wondering if we need to exactly follow the required time for relaxation? Can it be more than 2 hours (SLVA725A - step 3.1.3) and/or more than 5 (SLVA725A - step 3.1.5). The company is not normally open 24 hours...

- I saw in the forum that it can be possible to find the CHEMID for a battery without actually performing the testing. Do you have a database where I can check if this battery is there? 

Thanks.

↧

MSP432P401R: Kentec Touch Display to Laptop

October 22, 2018, 2:59 pm
$
0
0

Part Number:MSP432P401R

I am working with Voice Detection Software using the MSP432P401R along with BOOSTXL-AUDIO and KENTEC Touch display. Is there any way to be able to output the information from Kentec Touch display to my laptop.

↧

RTOS/TMS320C6678: TI Processor SDK quality & security

October 22, 2018, 3:02 pm
$
0
0

Part Number:TMS320C6678

Tool/software: TI-RTOS

We will be scrutinized on the saftey and quality of the different software within the SDK, not limited to TI-RTOS, PDK, NDK, MATH LIBS, etc.  Are there any documents that support the safety and quality of the code?  Examples could be: 

1) Origin of the code is from "X"

2) Code development and/or testing standards used

3) Proven on "X" number of platforms

4) Open source

Thanks!

Mark

↧
Viewing all 262198 articles
Browse latest View live
Search
<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>