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BQ24075: SYSOFF to turn disconnected BAT to VOUT (don' have DC input in Vin pin)

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Part Number:BQ24075

HI 

I saw about 2V at the OUT when OUT pin is floating (SYSOFF is high, Battery is attached). When 1 mA loading is applied, the voltage at OUT is dropped to 0V.

What happened? 

How do I make OUT pin is 0V without Battery energy loss? (I don't want to loss Battery energy.)

Thanks.


TMDS181: How to leverage EQ and de/pre-emphasis to enhance signal integrity?

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Part Number:TMDS181

Hi teams

An application issue has been reported from my customer and I need your help to figure it out what I should do next.

Customer is used TMDS181 in TV side as a source device for HDMI2.0 out. But the eye diagram is not good enough to past the standard so far.

Inside the TV the cable(trace) length between the signal source and TMDS181 is about 180mm. The distant between TMDS181 and connector is about 75mm.

The first diagram I showed below is capture in TV connector without output cable.

The second diagram is the output signal after 3m cable.

Below is my question:

If we found the signal is bad in output, what the major procedure to debug the signal integrity issue?

Do we have any guideline about how to configure the EQ and emphasis parameter?

OPA2365: Abnormal output voltage of OPA2365

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Part Number:OPA2365

Hi team,

The customer used OPA2365 for PFC current sensing and the sensing resistor is 0.01Ω. Input voltage of the system is 200-264V and input current is 5.9A. The PFC and OPA192 schematic are as below. When unit did the 12ms cycle drop with full load(62.5A) at 264vac input, the PFC Mosfets Q103 or Q102 will damage. And OPA2365 output voltage was abnormal. Test waveform is as below. Do you have any idea why OPA2365 output voltage is abnormal under this situation?

Thanks very much.

best regards,

Sophia Yao

MSP-TS432PZ100: Is "MSP-TS432PZ100" the right kit to load the program into "MSP432P401RIPZR" microcontroller IC?

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Part Number:MSP-TS432PZ100

Hello,

I am looking for a kit which can be used to load the program into "MSP432P401RIPZR" microcontroller IC. Is "MSP-TS432PZ100" the right kit to do that? Because I need to program a few of "MSP432P401RIPZR" microcontroller ICs. 

Thank you,

Mohammad Arifur Rahman

PHYTC-3P-PHYCORE-AM57X: Communication with Pipes between RTOS code on DSP and Android App on ARM15

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Part Number:PHYTC-3P-PHYCORE-AM57X

Hello,

We have an Android App running on the ARM15 of the AM57x board.

This App needs to communicate with a code running on the DSP running RTOS.

2 questions:

1. How can we launch the code of the DSP from Android?

- from our App

- at AM57x boot

2. Then to communicate between the Android App and the RTOS Dsp code, we have implemented on the Android App Pipes (by using standard libraries System.IO.Pipes - our App is developed on Visual Studio .NET).

Would normally the RTOS Pipes be compatible to communicate with our Pipes?

Can we use IPC/MessageQ?

Thank you.

Best regards,

Jorge

66AK2H14: HyperLink Interface PLL not getting Locked

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Part Number:66AK2H14

Hi,

We are using 66AK2H14DAAWA24 part in our design where the device is getting booted and all the DDR and SERDES(SRIO & ETHERNET Switch) interface are functioning properly, except HYPERLINK INTERFACE.

Issue with this interface is that the PLL is not getting locked for this interface

We have checked all the power as well as the clock(312.5Mhz) corresponding to hyperlink interface and all are as expected.

We have mounted 3K_Ohm from HYP0REFRES pin to GND as specified but the resistance but the observed resistance value across this was 1.2OHM, so we removed this resistor and checked the impedance at the resistor pads and observed same 1.2E(after removing 3K resistor). The same observation is see across HYP1REFRES and GND as well.

Is this the expected impedance value at this pin please suggest or is there any issue with, whether these pins are damaged internally,Should we replace the chipset or is there any alternate solution?

Request you to provide your valuable feedback ASAP.

Regards,
Karthik

ADC128S102QML-SP: Floating Metal/Lid Grounded

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Part Number:ADC128S102QML-SP

A question came up regarding if, for the below part numbers, there was any floating metal or if the lid was grounded. They also wanted to know the dimensions of the lid/case if applicable. I couldn't seem to find any information addressing this on the datasheet.

5962R0722701VZA
PLMX2615W-MLS
5962R1022102VSC
5962R1320201VXC

Thanks for the help guys!

CC3100: SDK 1.4.0 for CC3100

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Part Number:CC3100

I am working with the CC3100 wifi chip and have been looking at available software packages

The most recent Service pack for CC3100 is 1.0.1.13-2.11.0.1.  If I understand this correctly, this package updates the chip firmware to version 2.11.0.1 but the host driver 1.0.1.13 is nowhere to be found.

The CC3200 for comparison uses this same service pack and a recent SDK update v1.4.0 contains the 1.0.1.13 host driver.   Can I use this updated host driver from the CC3200 SDK with CC3100 or will there be a separate SDK update for CC3100


TMS570LC4357: Is it possible to add two signals together and output the combined signal through a new pin?

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Part Number:TMS570LC4357

Hello,

Currently, I am able to generate two PWM signals using the ADC and ETPWM modules in HALCoGen. I'm wondering, however, if it's possible to combine these signals together and output them through a new pin without external components

TMS320F28069: TMS320F28068?

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Part Number:TMS320F28069

We are currently designing a motor controller based on the F28069 ISO card included in the High Voltage Motor Controller. The card uses a TMS320F28069 chip but we are having trouble programming the chip and it is reporting Illegal interrupt. After looking through Mouser, we have noticed several of the parts offered with the same base number. Do we need to order the ones with a 28069M or 28069F to get the InstaSpin Libraries loaded into the BIOS?

IWR1443BOOST: What is the expected frequency response of IWR1443boost LC filter for ar_1.8V with ES3 chip

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Part Number:IWR1443BOOST

Any one know the expected frequency response of the LC filter used in the 1.8V, 1.35V_RF1 and 1.35V_RF2 of IWR1443boost with ES3 chip for the power optimization? (any simulated or the measured frequency response and the filter used)? The help is greatly appreciated.

CC1352R: cc13x2 rev E is final silicon?

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Part Number:CC1352R

The PCN regarding cc13x2 pre-RTM silicon states the below. It seems to imply that rev E is the final version of the silicon, ie RTM version. Is that the case? Also, suppose one has a bunch of X-marked rev E, is there a difference between those and the final, non-X'ed, RTM version (eg in product ID registers or such)?

  • All silicon released before the device production will be “x” marked and can either be Revision C or Revision E
  • All silicon released post-device production will not have the “x” marking and will be Revision E or later.

All users must migrate to the “non-X”, Revision E silicon immediately after RTM to develop with the latest features and ensure software and hardware compatibility.

SN74LVC8T245-Q1: SN74LVC8T245-Q1 DWR pin/out package

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Part Number:SN74LVC8T245-Q1

Hi,

Could you please share the SN74LVC8T245 the pin/out package of the DW package (SN74LVC8T245DWR) in SOIC-24.

I think on the datasheet I can only find the DB, DBQ, DGV, PW or RHL package, but not the pinout of the DW package (for SN74LVC8T245DWR).

Can you please confirm that the solution exist in AECQ100 ?

Thanks, Mohamed

TMS320F280049: Use of filter_out variable by C28x in CLA Hands-on Workshop

UCD3138A: Linking PWM modules

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Part Number:UCD3138A

Team, 

My customer has had his PWM modules linked together with the SYNC output of PWM1 provided to PWM2 – PWM6 through the master/slave PWM module configuration options. He is trying to break the link between modules 2 & 3 so that he can have the following daisy chains:

  • PWM1 -> PWM2
  • PWM3 -> PWM4 -> PWM5 -> PWM6

When customer tried setting EPwm3Regs.TBCTL.bit.PHSEN = TB_DISABLE he found that the CTR would pause at one count for a period of time on both the count up and count down. This is all using Matlab Simulink auto-generated code that is pulling in a custom C module to help with the configuration of the PWM. The PWM is also triggering an ISR that is used for calculation of all of the control code. There is some issue with the way that it is configured that is preventing him from achieving good operation when he does not link all the PWMs as a slave to PWM1.

Please advise. 

Thanks

Viktorija 


DS90UB935-Q1: DS90UB935/936 Pattern Generation for YUV420

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Part Number:DS90UB935-Q1

Dear Sir,

Could you provide DS90UB935/936 Pattern Generation for YUV420?

Thanks!

Multiplying DAC with TC less than 0.5ppm/K?

Linux/TMDSIDK574: Linux/ PMIC TPS659037: TPS659037 watchdog support in device tree / linux

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Part Number:TMDSIDK574

Tool/software: Linux

Hi

we use http://www.ti.com/product/TPS659037 with AM5748 and would like to use the watchdog component on this PMIC.

In device tree of our reference IDK we find subtrees for several PMIC companion functions like rtc but no subnode for the watchdog:

tps659038: tps659038@58 {

compatible = "ti,tps659038";

reg = <0x58>;

interrupts-extended = <&gpio6 16 IRQ_TYPE_LEVEL_HIGH

       &dra7_pmx_core 0x418>;

#interrupt-cells = <2>;

interrupt-controller;

ti,system-power-controller;

ti,palmas-override-powerhold;

 

tps659038_pmic {

compatible = "ti,tps659038-pmic";

…..

tps659038_rtc: tps659038_rtc {

compatible = "ti,palmas-rtc";

interrupt-parent = <&tps659038>;

interrupts = <8 IRQ_TYPE_EDGE_FALLING>;

wakeup-source;

};

 

tps659038_pwr_button: tps659038_pwr_button {

compatible = "ti,palmas-pwrbutton";

interrupt-parent = <&tps659038>;

interrupts = <1 IRQ_TYPE_EDGE_FALLING>;

wakeup-source;

ti,palmas-long-press-seconds = <12>;

};

 

tps659038_gpio: tps659038_gpio {

compatible = "ti,palmas-gpio";

gpio-controller;

#gpio-cells = <2>;

};

 

extcon_usb2: tps659038_usb {

compatible = "ti,palmas-usb-vid";

ti,enable-vbus-detection;

ti,enable-id-detection;

/* ID & VBUS GPIOs provided in board dts */

};

The PMIC device is under control of the PMIC driver(s). 

In particular the interrupt (connected to GPIO6/16 of AM5748) is handled by the driver:

root@sitara:/home/abb# cat /proc/interrupts |grep palmas

169:          0          0  4805d000.gpio  16 Level     palmas

170:          0          0    palmas   8 Level     48070000.i2c:tps659038@58:tps659038_rtc

Serving the PMIC watch by our own code would probably interfere with the driver.

Could you advice how to enable, configure and feed the PMIC watchdog under these circumstances?

Thanks, Chris

169:          0          0  4805d000.gpio  16 Level     palmas1

TFP410: DVI compliant

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Part Number:TFP410

Hi E2E,

Good day.

The TFP410 can be used as HDMI and DVI, if the customer would like to use the part as DVI transmitter only, is HDMI registration or license needed?

Thank you in advance for your confirmation.

Best Regards.

AWR1642: NRESET set Low timing in Power down sequence

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Part Number:AWR1642

Hi Team,

My customer asks questions about NRESET set low timing in power down sequence in the Clause 5.10.1 Power Supply Sequencing and Reset Timing.

Is it mandatory to set NRESET=Low 3ms before power down power rails?

What potential risk would be assumed if NRESET power down sequence is violated?

Best regards,

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