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TPS25221: About the description of data sheet "UL 62368 Recognition Pending."

June 6, 2018, 7:27 pm
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Part Number:TPS25221

Hello

My customers would like to use TPS25521DBVR to comply with IEC62368-1.

In the data sheet, there was a statement "UL 60950 and UL 62368 Recognition Pending".

When can we see the approval result?

Thank you.

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AWR1642: About the radar's range resolution.

June 6, 2018, 7:27 pm
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Part Number:AWR1642

Dear TI Support,

I am using AWR1642BOOST+mmwave-devpack+TSW1400EVM, According to the default configuration of RadarStuidio, the measure distance is 25m.

and 256 samples are obtained for each chirp period, so the range resolution is 25/256=0.09765.

But according to the formula: range resolution = c/(2*B).

c->speed of light.

B->sweep bandwidth of FMCW chirp, that is (ADC sampling time * Frequency Slop)=25.6us * 29.982MHz/us.

So get the range resolution is 0.1953m.

This result contradicts the previous one.

Thank you in advance for your response.

Xian

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CCS/CCSTUDIO-C2000: F28377S

June 6, 2018, 7:29 pm
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Part Number:CCSTUDIO-C2000

Tool/software: Code Composer Studio

Hello

I have the a C2000 Delfino F28377S, this is programmed by matlab, but I need to see the signals that are programming, I would like to know how I can do that. If you could help me I would appreciate it very much.

Thank you.
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CC2640: The recommended settings for multirole application on CC2640

June 6, 2018, 7:47 pm
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Part Number:CC2640

Hello,

Do you have the recommended settings for the multirole application?
My customers want to achieve the multirole application of broadcaster and observer.
Especially, they want to know the recommended settings of the scan window and the advertising.

Best Regards,
Nomo

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TMDS181: TMDS181 is polarity inversion mode

June 6, 2018, 7:50 pm
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Part Number:TMDS181

Hello,

I have question on polarity inversion mode:  if I connect to TMDS181 (or DP159)  as shown below, I believe that I do not use the chip in polarity inversion mode, correct?  Actually, am I allowed to connect the inputs as shown?  The input signal- and signal+ are referred to the HDMI connector connection.

and if I connect the chip as below then I use it in polarity inversion mode, and I am limited to retimer mode only, correct?

Thankjs for your help!

Lam

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CCS/TM4C123GH6PGE: CCS Themes and Colors. One setting I cannot change

June 6, 2018, 7:51 pm
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Part Number:TM4C123GH6PGE

Tool/software: Code Composer Studio

Hello everyone.  I fill silly for asking this but I've read through forums about it and have seen it in both CCS V7 and V8.  

In the picture below there is a white background surrounding this bit of code:

#ifdef __cplusplus
extern "C"
{
    #ifdef DEBUG
    {
        void __error__(char *pcFilename, uint32_t ui32Line)
    }
    #endif
}
#endif

I have went through every single color setting for anything possible to the point of changing anything that looks like this color to a different color.  

I know it's not that important but it is rather annoying. Thanks in advance!

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TPD5S116: I2C read and write fail

June 6, 2018, 8:19 pm
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Part Number:TPD5S116

Hi  TI ,

    I used TPD5S116 in my design ,using its  I2C  level shift function ,when HDMI cable connect   TV ,LT8912 I2C  read fail ,but  TV I2C read is OK ,could you please check what is the rootcause ?how can i solve it 

Schematic is following

thanks

peiyuanqing (Please visit the site to view this file)

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TMDS181: My customer want to use the TMDS181 to get 15 meters for HDMI 2.0

June 6, 2018, 8:25 pm
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Part Number:TMDS181

Hi team,

My customer want to use the TMDS181 to get 15 meters for HDMI. Could you please help check the possibility for 15m for HDMI 2.0? Thanks.

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RTOS/CC3220SF-LAUNCHXL: Configuring hwi interrupts using release.cfg in an existing rtsc project

June 6, 2018, 8:27 pm
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Part Number:CC3220SF-LAUNCHXL

Tool/software: TI-RTOS

Hi, 

I am exploring/ learning the CC3220sf functions using the gpio interrupt with TI-RTOS example. I am trying to create another hwi for another pin (SW1)  from the release.cfg file and want to post a swi from it (following TI-RTOS video series).

However when I make changes in release.cfg there are errors saying hwiInterrupt is already used. 

My questions as below:

1. Is the approach valid? As I don't have proper understanding of the same.

2. How do I configure a HWI with a already existing TI example project, and link it with simplelink project

Thanks,

Aditya

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UCC28180: Any calculate tool that support RINING CORE or transformer for UCC28180 design?

June 6, 2018, 8:37 pm
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Part Number:UCC28180

Hi,

We would like to use RINING CORE  or transformer for UCC28180 design. 

Is there any calculate tool that support RINING CORE  or transformer for UCC28180 design?

Thanks 

PY Tsai 

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CC2642R: SPI speed up to 4Mhz?

June 6, 2018, 8:50 pm
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Part Number:CC2642R

Dear Sir/Madam, I want to know what the CC2642R SPI speed  can be up to? Is the most fast speed of CC2642R's SPI up to 4Mhz( based on the datesheet, I calculate the speed as below formula 48/12=4?

if anybody know this issue,please help confirm it,thanks.

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RTOS: SysBios exit & task sleep questions

June 6, 2018, 9:20 pm
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Tool/software: TI-RTOS

Hello,

A couple of questions regarding SYSBIOS:

 

  1. Is there a way to have a task sleep forever (until specifically requesting to wake it up)  (if I understand correctly, task sleep does not seem to allow it) ?
  2. The BIOS_exit(Int stat); receives a stat parameter and from what I saw on the documentation, this stat value should be passed to the System_exit function. I register an exit function via System_atexit(myExitHookFunc);
  1. will the function I registered receive the stat parameter? Can I use and depend on this parameter on my exist hook function?
  2. Can I choose and use arbitrary values for the “stat” parameter that fit my functions?
  3. Are there any restrictions on values assigned to “stat” – who else, apart from the hook function I specifically register, receives this value and what (if any) effect does it have?
    (I want to use it but would like to be sure it won’t have some adverse effect if it assigned some value)

Thanks.

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BQ27441-G1: BQ27441 + BQ24075 share 1 NTC

June 6, 2018, 9:26 pm
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Part Number:BQ27441-G1

Dear Sir/Ms.

My customer want to use 1 NTC in their system. Wold you please give me advice?

BQ27411 wire NTC,  BQ27441 GPOUT connect to BQ24075 TS pin? Is it ok?

Best Regards,

Kami Huang

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MSP432E401Y: Over voltage on EN0TXO

June 6, 2018, 9:29 pm
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Part Number:MSP432E401Y

hi,

when using the MSP432E401Y in ethernet broadcast mode, we found the voltage periodically get over voltage to 4.78V on EN0TXO PIN,

how to fix this issue?

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MSP430FR2633: Frequency Hopping of CapTIvate on MSP430FR2633

June 6, 2018, 9:47 pm
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Part Number:MSP430FR2633

Hello,

I'm referring CapTIvate Technology Guide; however, I have some questions.
Could you confirm the following?

1.Can I choose the number of frequency of the frequency hopping function?
  It seems the number is fixed to four.

2.Can I change the frequency of the frequency hopping?
  It seems the frequency is defined automatically.

Best Regards,
Nomo

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TPD4E02B04: On the data sheet P16

June 6, 2018, 9:48 pm
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Part Number:TPD4E02B04

Hi all

Would you mind if we ask TPD4E02B04?

On the data sheet P16, ESD protection for lines of CEC, UTILITY DDC_CLK and DDC_DAT is TPD4E05U06.
Is it possible to use TPD4E02B04 for  lines of CEC, UTILITY DDC_CLK and DDC_DAT?

Kind regards,

Hirotaka Matsumoto

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DRV8711: Different voltages for the MOSFETs and VM?

June 6, 2018, 9:48 pm
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Part Number:DRV8711

Hi, I've been looking over the DRV8711 chip and is it possible to power the motors and the chip from different supplies? For e.g. The DRV8711 is powered by a 24V supply while the MOSFETs are powered by a much higher voltage such as 75V since steppers are faster with higher voltages.

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LAUNCHCC3220MODASF: LAUNCHCC3220MODASF: Packet Drops in WiFi-UDP mode and in Raw mode.

June 6, 2018, 9:51 pm
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Part Number:LAUNCHCC3220MODASF

Hello,

I was trying the "radiotool" command (transceiver/raw mode) and "send/recv" commands for UDP transfer over Wi-Fi.

The aim was to detect packet losses in shielded environment, with unidirectional traffic only.  That is one LAUNCHCC3220MODASF is sending and the other receiving.

The code was modified accordingly.

The brief outline of changes done is as follows.

In the code serving the command "radiotool":

  1. Packet identifier field was added to detect number of packets lost.
  2. Capability was added using timers, to be able to configure a delay in micro-seconds (us), say 500 us, after every packet send.  The purpose was to bring down the number of lost packets.

In the code serving the commands "send/recv":

  1. Packet identifier field was added.
  2. Timer was added to measure the time accurately (so as to calculate throughput more accurately.)

PER is calculated as follows:

PER = (packet num of last received packet - num of packets successfully received)/packet num of last received packet

In case of "radiotool" the PER (number of packets lost/total number of packets expected) was brought down from 0.01 to 0.00013 by changing the delay after every sl_Send from 0 us to 500 us.  500 us delay gave the best results, at 400 us, 300 us and 600 or 700 us, the number of packets lost was more than that observed at 500 us.

In case of "send/recv" (which was carried out using UDP over a WiFi connection between two LAUNCHCC3220MODASF  boards, the PER was 0 for 100 packets, but if the number of packets transferred is made 1000, 10000, or 100000 the PER comes somewhere around 0.3 (30 %).

Now my question is that since the environment was a shielded one (shielded from outside RF radiation), and since the traffic is only in one direction (no change of modes between tx and rx), why are the packets getting dropped?  I expected 0 packets drops.

--

Regards,

Neeraj Sallh

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MSP430FR2633: Calibration function for the metal touch solution on MSP430FR2633

June 6, 2018, 9:53 pm
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Part Number:MSP430FR2633

Hello,

Please let me know whether MSP430FR2633 have the calibration function for the metal touch solution.
If the metal surface is distorted by a strong power, in case of metal touch solution, the captivate may cause the failure detection.
So, I think the calibration is needed every detection or power-on reset.
Do you have these functions?

Best Regards,
Nomo

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CCS: Compiler version problem

June 6, 2018, 9:54 pm
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Tool/software: Code Composer Studio

I downloaded all the eZ430-Chronos software and all the CCS updates. I modified the code and get the following:

Buildfile generation error occurred..
This project was created using a version of compiler that is not currently installed - 4.2.1 [MSP430]:

I followed the instructions and tried the 'Code Generation Tools Updates' without any success. I have 

Code Composer Studio

Version: 8.0.0.00016

Do I need to import this code into another project, or what?

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