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CSD95372BQ5M: Bootstrap resistor values

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Part Number:CSD95372BQ5M

Dear expert,

Because CSD95372BQ5M is integrated both high/low side MOSFET. I cannot check is there any risk about shoot through or not.

How to calculate the RC value at bootstrap circuit?

Below circuit is power stage part of 12Vin to 5Vout application. If I change Resistor from 2.2-ohm to 3ohm, is there an risk in below bootstrap circuit?

Thanks! y risk in bootstrap circuit?


CCS/TMS320DM8167: Our customized board, not evm.

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Part Number:TMS320DM8167

Tool/software: Code Composer Studio

Hi,

I have a problem like below picture. It suddenly occurred while running firmware a few hours. I don't use any OS (such as TI RTOS).

I don't know why it occurred and how I debug to fix this. I have several boards, but they did not occur the problem except one. Only one board had this issue.

Please help me to reply any comment, If you have any idea about this.

Thank you in advance.

DS90UB953-Q1EVM: The device id of DS90UB953 cannot be detected after loading the 953 profile

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Part Number:DS90UB953-Q1EVM

Hi,

       We have DS90UB953/954 combination environment for Ser/Des solution. After loading 954/953 profiles in ALP,the device id of 953 can not be detected as below picture.How can we solve this problem?

regards,

Sean

TPS82085: Junction-to-Case and Junction-to-Board Thermal Resistance

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Part Number:TPS82085

Hi Sir, Madam,

Can I check for junction-to-case and junction-to-board thermal resistance which stated as NA in the datasheet?

Thanks.

TDC1000-TDC7200EVM: water flow metering

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Part Number:TDC1000-TDC7200EVM

hi am working on water flow metering in some of the forums i got to know that transducers can be mounted at an angle of 45 degree may i know what should be the medium of materia in between the space left between pipe and transducer surface.

AM4378: ADC sample in continuous mode

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Part Number:AM4378

Processor: AM4378

Kernel: 4.1.6

Background:

When I use generic_buffer tool to sample the data from a pwm
channel(50%duty), I find data are not in uniform distribution,
even it has big difference between high level and low level
voltage. I know it is impossible to make the data in uniform
distribution, but the big difference makes me in bad situation.

Params:

1. generic_buffer: lenght=20, 5ms sample once.

2. Below "ADC value" is raw data from "read"

3. "ADC AVG" is the highest (array[16]+array[17]+array[18])/3

Devicetree:

this channel is configured as "adc" instead of "tsc"

opendelay=0x00

sampledelay=0xff

I only use channel6, and in dts, i open channel 5/6/7 three
channels.

Thanks for any suggestion.

iio device number being used is 0
scan_size:2
read_size:40
ADC value:1821 1820 1819 1820 1820 864 8 0 0 0 0 1823 0 0 0 1835 
1816 1818 1825 1817 
ADC AVG Value: 1823
read_size:40
ADC value:1817 24 0 2 0 0 1841 1818 1820 1818 1818 1820 0 0 0 0 
1823 1819 1819 1818 
ADC AVG Value: 1821
read_size:40
ADC value:1818 1821 0 0 0 0 0 1824 1830 1819 1820 1818 1820 1817 
1819 1821 1816 97 5 0 
ADC AVG Value: 1822
read_size:40
ADC value:10 0 1855 1824 1820 1817 1822 1820 233 0 0 0 1819 2 0 0 
0 0 1830 1820 
ADC AVG Value: 1825
read_size:40
ADC value:1817 1832 1817 1819 6 0 0 0 0 1844 1821 1820 0 0 1821 
1820 1818 1822 1819 619 
ADC AVG Value: 1825
read_size:40
ADC value:0 0 0 0 0 1823 1820 1818 1818 1824 1822 0 1819 1818 
1816 16 0 2 0 0 
ADC AVG Value: 1821
read_size:40
ADC value:1838 1819 1818 1827 1821 1818 47 0 0 8 0 1846 0 4 0 0 
1824 1819 1819 1820 
ADC AVG Value: 1829
read_size:40
ADC value:1818 1817 7 0 1 0 0 1825 1821 1818 1818 1821 1820 1818 
1820 29 0 0 0 0 
ADC AVG Value: 1820
read_size:40
ADC value:1839 1821 1820 1821 1831 1820 45 0 0 0 0 1841 0 0 0 0 
1824 1820 1828 1819 
ADC AVG Value: 1832
read_size:40
ADC value:1822 1818 3 0 0 4 0 1825 1820 1818 1818 1820 1821 1836 
1820 1819 1819 103 0 6 
ADC AVG Value: 1822

DS90UB924-Q1: Questions for DS90UB924-Q1+DS90UB927-Q1

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Part Number:DS90UB924-Q1

Hi team,

The customer is using DS90UB924-Q1+DS90UB927-Q1. The LCD monitor that is connected to 924 has the stripe.

When the customer updates his system interface of the LCD monitor, the interface is always  shaking. Please check the attach.

Then the customer tests the clock pins of 927 through oscilloscope , they are fine. The clock pins of 924 have the jitter.

The attach has the customer's schematic for 924 and 927. VCC is 3.3V for 924 and 927.

For the customer's issue. would you provide some suggestions? 

Are the customer's schematics correct?

  (Please visit the site to view this file)(Please visit the site to view this file)

Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments

OPT8241-CDK-EVM: OPT8241-CDK-EVM for the secondary development quesion

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Part Number:OPT8241-CDK-EVM

Hi team,

The customer would like to use OPT8241-CDK-EVM to load his  own algorithm or firmware for the secondary development.

Can OPT8241-CDK-EVM support this?

Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments


TUSB319-Q1: Vconn Supply

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Part Number:TUSB319-Q1

Hi,

My customer is considering to use TUSB319-Q1.

If Vconn supply is required, how can the circuit be constructed?

Can it realize by only an external FET?

Providing reference circuit, it helps me.

Best Regards,

Kuramochi

RTOS: rtos-omapl13x-evm-03.03.00.04

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Tool/software:TI-RTOS

DEAR:

 

  I have installed both "ti-processor-sdk-rtos-omapl13x-evm-03.03.00.04-Windows-x86-Install.ext" and "ccs_setup_7.2.0.00013.exe"

  I have known to build the examples "MyExampleProjects" in the windows xp

   How to build "pdk_omapl138_1_0_2\packages\ti\boot" via ccs_setup_7.2

   Can i build the "pdk_omapl138_1_0_2\packages\ti\boot" via ccs_setup_7.2 (in the windows)?

TPS53515: EN sequence

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Part Number:TPS53515

Hi

I have simple question. 

What happen if EN come up before VIN and VDD?
(Is there any impact to be broken?)

I think EN voltage does not related to VIN or VDD. (refered Absolute maximum voltage ratings.)
Is there any concern to impact the operation?

Regards,

Koji Hamamoto

DS90UB914A-Q1: Internal clock for DS90UB914A

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Part Number:DS90UB914A-Q1

Hi,

I would like to know all internally clock which is using at DS90UB914A.

The condition of measurement.
YUV422 72MHz pixel clock -> DS90UB913A -> DS90UB914A

1. How many clocks generate in ClockGen and Timing and Control module of DS90UB914A?
2. What is the frequency?

So, could you please give us your advice about it ?

Regards,
Nao

ADCS7477: CMRT 5.01

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Part Number:ADCS7477

Hi Ti,

Could you please help to advise the Conflict Minerals Reported Template 5.01 for the part as below.

ADCS7477AIMF/NOPB, SN74LVC2T45DCTR, LMV654MTX/NOPB

 

TMS570LS3137: UART Bootloader - fails during Flash erase

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Part Number:TMS570LS3137

Hi everybody,

I am trying for UART boot loader with the example files given for HDK board with F021 Flash API.  When I ported it to my custom board with LQFP 144, the code crashes during FLASH erase -  the control resides in the sys_intvecs.asm in the following location.

prefetchEntry
b prefetchEntry

Please guide us on the reason.  We are using XDS100 to debug.

Regards,

Unmai.

OPT3001: light degradation

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Part Number:OPT3001

Hi Team,

Is it possible to detect weak illuminance (<40lux) after exposing strong illuminance like sunlight for long time for OPT3001?
My customer concerns about light degradation of sensor part in this case.

Best Regards,
Yaita / Japan disty


Changing the am5728 appsink source code

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Hi all

Months ago, we found the am5728 appsink performance is very low and we send an post to e2e, the below is the website.

https://e2e.ti.com/support/arm/sitara_arm/f/791/t/589689

The e2e have told us the solution, which is modify the appsink’s source code and change memory allocation from omap_bo to CMEM.

Just now we don’t know how to modify the source code because  we can’t find the memory allocation code.

Can you give us some advice.

Our Processor SDK RT3.3

 

Thanks

Regards

LMZ14201: MTBF and FIT not found on ti.com

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Part Number:LMZ14201

Hello team,

one of my customer is looking for the MTBF and FIT rate of the LMZ14201. Unfortunately I was not able to find any value under Support & Training & Technical resources (Qualitiy) --> DPPM/FIT/MTBF estimator.

Can you please provide me the required information?

Thank you and kind regards,

Felix

CC1310: Running Multiple Tasks in Sensor Controller Studio

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Part Number:CC1310

For a project in Sensor Controller Studio that has more than two tasks, is it possible to run all tasks at once and if so, how?

If Sensor Controller Studio allows running only one task at a time for verification, how can all tasks be tested at the same time?

Thank you and have a great day!

Patrick

TMDSEVM437X: Advice required on headers J42 and J23 on EVM

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Part Number:TMDSEVM437X

On sheet 3 of the EVM schematic we come across this part of the circuit around J42:

(Not sure how I can include graphics??)

 

I understand J42 is of relevance when programming the keys in-circuit, yet the EVM Hardware Users Guide says nothing about this. How is this to be used, or shall I be able to leave this connector off my own design and program they keys in another manner ?

Sorry about this question, there are thousands of pages of information on the secure wiki and I just have not been able to find this info so far, looking for a short cut to the answer plse. Plse just point to the correct doc where I should look.

 

On sheet 23 of the EVM schematic we come across this part of the circuit around J23:

(Not sure how I can insert graphics?)

Same question, nothing in the EVM HW UG. May I leave off my own design, or will I need it ? If needed, where to find info plse.

 

 

Linux/AM5728: "USB Boonie++" source code

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Part Number:AM5728

Tool/software: Linux

Hi,

I would like to modify "USB bonnie++" that is included in Linux Matrix GUI.

I run USB bonnie with AM5728 GP EVM. And I found some of test results is shown "++++".  According to the web information, "+++" is displayed when the measure is impossible as to  too short time.

So, I would like to modify USB bonnie' s header file. Please let me know the location of USB bonnie++.

I appreciate your quick reply.

Best regards,

Michi

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