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CC2564C: cc2564c

September 19, 2019, 11:20 pm
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Part Number: CC2564C

Hi Team,

I'm preparing for the Bluetooth SIG Certification with our BT/BLE product.

I have tested some test cases with PTS tool, and found the "A2DP_SNK_AS_BV_01" case failed. I have attached logs got from PTS software logs window and attaching  HCI related logs.(Please visit the site to view this file)

Please refer those logs and let us know what is wrong?

Test case name:A2DP_SNK_AS_BV_01

Description: To verify that SNK can receive the audio data encoded in SBC.

Even some test cases got INCON (Inconclusive result)

A2DP/SNK/REL/BV-01-I -(Description:To verify that SNK can accept streaming release)

A2DP/SNK/SUS/BV-01-I -(Description:To verify that SNK can accept streaming suspend(Please visit the site to view this file))



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BQ78Z100: I2C of BQ78Z100 don't work .

September 19, 2019, 11:22 pm
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Part Number: BQ78Z100

Hello,

We use BQ78Z100 as I2C slave device and TMS5704357BZWTQQ1 as I2C master device.

Sometimes, I2C communication is fault because I2C SCL keeps High level and SDA keeps Low level.

Please provide us some advice.

Best regards.

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CCS/TMS320F28377S: Primary and secondary boot loader codes

September 19, 2019, 11:23 pm
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Part Number: TMS320F28377S

Tool/software: Code Composer Studio

Hello,

I need the primary and secondary boot loader code's used in TMS320F28377S(and its document's). So please tell where to find it. 

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TM4C1294NCPDT: TI-RTOS - Timestamp - How to setup clock source other than system clock?

September 19, 2019, 11:27 pm
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Part Number: TM4C1294NCPDT

Dear SupportTeam,

How to make Timestamp module to use ticks other than system tick.
We have set system clock frequency to 120 MHz but for timestamp application we would like to use lower frequency.

Thanks & Regards

Abhijit

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MSP430F6779A: Fastest clock for high frequency PWM

September 19, 2019, 11:29 pm
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Part Number: MSP430F6779A

I want a PWM frequency of 18Khz. I am able to generate a PWM signal but the maximum frequency I can reach is 2 Khz at TA0CCR0 value of 511. I am using SMCLK whose frequency I think is 1 MHz and time period of PWM as 511 microseconds (configured the TASSEL to 2( smclk). I want 180 PWM pulses in my positive half cycle and 180 PWM pulses in negative half which adds to 360. Now as my sine wave frequency is 50Hz, 50 x 360 = 18000. So, I want a PWM of 18KHz. My question is how can I increase my PWM frequency. I know the frequency depends on the PWM period( TA0CCR0 value) but i have to at least keep it around 200. Please help me with this. Thanks in advance. 

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[DP standard 1.2]USB2.0 transport over AUX CH

September 19, 2019, 11:34 pm
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 Dears

     My customer is researching for the application of USB2.0 transport over AUX in Display Port.

     They want to transmit some calibration data of touch position or color...etc to panels through AUX channel in DP.

     

     Do we have related solutions for them?

Thanks 

BR

Edward

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BQ34110: Fixed divider circuit for BAT input without VEN circuit

September 19, 2019, 11:35 pm
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TMS570LC4357: Processor is continuously resetting and heating

September 19, 2019, 11:36 pm
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Part Number: TMS570LC4357

Hi,

I am working on the Hercules TMS570LC4357 Development Kit.

But after loading some program i have observed that the controller is heating so much like burning the finger(but able to load the image).

I have checked but there is not shorting of the board. 4 blue led's beside the power button are glowing along with the usb light. but also one red error light is glowing.

It is not just while loading, but if just connect the power supply it is heating too much.

I have applied isopropyl alcohol solution to it but of no use.

It seems that the controller is going into reset continuously after loading.

Can anyone please help me in this?

Regards,

Shivam Kakad

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DCA1000EVM: mmwave studio wrong when capture data use awr1443 and dca1000

September 19, 2019, 11:43 pm
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Part Number: DCA1000EVM

I use AWR1443 and DCA1000 ,tried to capture adc data (mmwave studio version 2.0.0.2). When  I tried to connect spi,mmwave studio indicated timeout.   How can I fix this problem?     

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UCD90160A: Controller's power failure

September 19, 2019, 11:45 pm
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Part Number: UCD90160A

Hi,

I am using UCD90160 in a project. I am using it to monitor 14 voltage rails by using resistor dividers on its monitoring pins to scale the input of high voltages but the issue is that out of these 14 two voltages of 28V give a false reading of 10V on Fusion Digital Power Designer software after some time while the actual onboard voltage during this fault is still 28V. Initially the controller works absolutely fine the issue comes after the new controller runs for two days. I have also used a unity gain amplifier (to limit current draw) after resistor divider and also soldered the IC again but the fault persisted. I have linked the PDF of the schematic portion with this comment for review. I want to know whether the combination of resistor is not okay or is there any grounding error. 

Any help regarding the issue will be appreciated.

(Please visit the site to view this file)

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OPT3001EVM: How to Improve Temperature Stability Performance

September 19, 2019, 11:50 pm
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Part Number: OPT3001EVM

Hello

Testing is underway using the OPT3001 EVM software.

Interim inspections show a slight drop in temperature performance compared to competitors' products (CG5162TC).

      CG5162TC DATASHEET : http://www.wpgholdings.com/uploads/bu/bu_5/2014/20140917_Security/CG5162TC.pdf

Is there any possibility to improve the temperature stability by changing the setting value instead of the default setting?

Thank you.

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MSP430F6779A: Need Faster clock for high frequency PWM

September 19, 2019, 11:56 pm
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Part Number: MSP430F6779A

I want a PWM frequency of 18Khz. I am able to generate a PWM signal but the maximum frequency I can reach is 2 Khz at TA0CCR0 value of 511. I am using SMCLK whose frequency I think is 1 MHz and time period of PWM as 511 microseconds (configured the TASSEL to 2( smclk). I want 180 PWM pulses in my positive half cycle and 180 PWM pulses in negative half which adds to 360. Now as my sine wave frequency is 50Hz, 50 x 360 = 18000. So, I want a PWM of 18KHz. My question is how can I increase my PWM frequency. I know the frequency depends on the PWM period( TA0CCR0 value) but i have to at least keep it around 200. Please help me with this. Thanks in advance. 

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DRV8885: Non circular 1/2 step

September 20, 2019, 12:04 am
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Part Number: DRV8885

Is non-circular 1/2 step limited in speed and current value?
Attach waveform capture.
The waveform is broken at 1.13A.
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DRV8703-Q1: How to change the mode without turning off or entering sleep mode

September 20, 2019, 12:05 am
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Part Number: DRV8703-Q1

Hi 

I read the following in datasheet:

"Mode control pin. Pull this pin to logic low to use H-bridge operation. Pull this pin to logic high for independent half-bridge operation. This pin is connected to an internal resistor divider. Operation of this pin is latched on power up or when exiting sleep mode. This pin is connected to an internal pullup and pulldown resistors."

But I need to change the mode without turning off or entering sleep mode.. How do I operate it?

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XIO2213B: Mac OS X 10.14.4

September 20, 2019, 12:13 am
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Part Number: XIO2213B

Hi Sir 

Our customer feedback they use XIO2213B on Mac OS X 10.14.4 version 

The XIO2213B can't be detect 

Do you have any experience for this issue ?

Thanks

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TPS62743: Does TPS62743 has thermal protection and over current protection?

September 20, 2019, 12:14 am
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Part Number: TPS62743

Does TPS62743 has thermal protection and over current protection? 

If yes, what is the protection temperature and protection current? I can't find them in the spec.

Thank you!

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CC2564MODA: How to modify A2DP demo to connect with smartphone automatically

September 20, 2019, 12:18 am
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Part Number: CC2564MODA

Hi,

My customer is implementing A2DP with below HW+SW.
HW: DK-TM4C129X
SW: http://www.ti.com/tool/CC256XM4BTBLESW

CC2564 is sink, smartphone is source.
Customer wants to modify the A2DP demo so that smartphone and CC2564 are automatically connected as soon as both devices are on.
I knew below changes are needed from original E2E thread.
- Store BD_ADDR and Link key in the flash
- Reload stored information and connect to the smartphone

But it is not clear how to implement above in the A2DP demo.
Could you specify which commands need to be added in which part of the code?

Thanks and regards,
Koichiro Tashiro

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DAC7568: ESD Classification

September 20, 2019, 12:20 am
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Part Number: DAC7568

Hi E2E,

Good day.

We have one customer asking for the ESD classification and or rating for DAC7568. 
Information is not available on the datasheet. Appreciate it if you could help to provide.

Thanks in advance!

Art

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MSP430F5524: Proper procedure to turn off and restart timer

September 20, 2019, 12:20 am
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Part Number: MSP430F5524

Hi

I am generating a PWM to turn on a fan. Here is the code

TA2CCR0 = 1000; // PWM Period
TA2CCTL1 = OUTMOD_7; // CCR1 reset/set
TA2CCR1 = 900; //384; // CCR1 PWM duty cycle
TA2CCTL2 = OUTMOD_7; // CCR2 reset/set
TA2CCR2 = 900; //128 // CCR2 PWM duty cycle
TA2CTL = TASSEL_2 + MC_1 + TACLR; // SMCLK, up mode, clear TAR

I want to be able to turn it on and off. It should restart generating the same PWM with the same duty cycle. Here is the code for turn-off.

//Are these lines needed?

//TA2CCR0 = 0;                                                                                                                                                                                                                                                          //TA2CCTL1 = 0;

//TA2CCR1 = 0;
//TA2CCTL2 = 0;
//TA2CCR2 = 0;
//TA2CTL = TASSEL_2 + MC_1 + TACLR; 

TA2CTL &= ~(MC_1);  //Is only this line sufficient?

Is it enough if I just toggle and set MC_1 or should I set the other registers(Capture compare registers, TACTL etc.) to 0 and re-initialise them?

Thanks

Abhishek

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DS110DF111: check the schematic diagram

September 20, 2019, 12:24 am
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Part Number: DS110DF111

Dears,

We want to use DS110DF111 to connect CPU's XFI interface,then convert to 10G, SFP+,two lane,Pls help to check the schematic,and give us some advices on schematic and layout.

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