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OPT8241: -CDK-EVM Firmware

September 24, 2019, 1:26 am
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Part Number: OPT8241

Hello,

we are currently working on a new prototype using the OPT8241-CDK-EVM. After we tried to transfer a camera profile including Pixel-Wise calibration Data to the EVM, no connection can be established between the device and the Voxel Viewer (0.9.10) anymore.

* If the EVM module is connected to the host before starting the Voxel Viewer, the Voxel-Viewer software crashes at startup.
* If the Voxel-Viewer software is started first, then the EVM is connected, the module appears in the device selection list. If this module is selected and confirmed by a click on "Ok", the Voxel-Viewer crashes.
* There are no entries in the Voxel-Viewers log file

The OPT9221 firmware has been already flashed to 0.31 (the "Voxel-programmer" is still working). We suspect that the CDK-FX2 firmware has to be renewed/updated. Where can we get it? Are there any other measures we can take?

Best regards,
Patrick

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CC2564: Classic and BLE required resources

September 24, 2019, 1:38 am
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Part Number: CC2564

 

I have an additional query about the functionality. Is it possible to run the Bluetooth Classic SPP and the BLE GATT functionality concurrently? I’m thinking of a scenario where the CC2564 would form a Classic-to-BLE bridge.

 the concurrent use of BLE and the Classic SPP protocol on the CC2564- It’s something we’re interested in as part of our upgrade path from older devices.

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XIO2001: questions on XIO2001

September 24, 2019, 1:40 am
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Part Number: XIO2001

HI Team,

My customer use XIO2001 and have below questions to check. Please help. Thanks.

1, If use external 25MHz crystal, does Pin F3(CLK) need to connect with Pin B11(CLKOUT6) ?

2, If use 25MHz crystal, can PCI bus clock operate in 66MHz or not?

B.R,

Garrick Dai

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TPS61196: high current ripple

September 24, 2019, 1:43 am
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Part Number: TPS61196

Hello,

My customer find too big LED curent ripple using TPS61196, Current test at J6 total 3channel ,Vout also have ripple, and SW frequency seems not setted 200K.

I haven't find inproper in SCH except check COMP pin parameter, do you have some advise?

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ADC12D1600: Test Pattern

September 24, 2019, 1:43 am
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Part Number: ADC12D1600

Hi team,

Customers use PIN mode to control ADC12D1600, In Demux Mode, Non-DES Mode, power-on calibration, use test pattern, according to the datasheet description, test pattern will have a continuous 010. Now the data DI captured by customer in the FPGA FEF is two cycles, 010 is three cycles, and 010 does not appear twice the cycle of FEF. The timing constraints meet the requirements. What may be the problem?

Best Regards,
Amy Luo

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DS90UB948-Q1: About 947,948 chip, there is a problem with the output screen, ask questions

September 24, 2019, 1:45 am
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Part Number: DS90UB948-Q1

Hello TI's colleague:

  We currently use a pair of 947/948 and a pair of 949/948;

There are 2 questions, I would like to ask:

1, 949/948, can output 1920x720p60, can not output 1920x1080p60, can only output 30fps for 1080p;

2, separately output a pair of 947/948 1920x720p60 normal, while outputting a pair of 947/948 and a pair of 949/948,

there is interference between the two, can not simultaneously output 60fps, can only reduce the frame rate to 30 or less There is a display, and the i2c data reading is abnormal;

Please ask, what is the cause of these two problems, how can we solve it?

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BQ76930: Check the life cycle

September 24, 2019, 1:46 am
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Part Number: BQ76930

Dear sir,

one customer,  Fujian SCUD,  asks TI to check the life cycle of BQ7693003, for their end  customer told them that TI will stop shipment BQ7693003 soon, and suggest BQ7693004 to update it.

If true,  can you share the datasheet with me?

Regards,

Jack

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Drive scheme for PCB inductance without magnetic water meter

September 24, 2019, 1:46 am
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Dear all:

       Does TI have drive scheme for PCB inductance without magnetometer？That is the flowmeter, and the inductance of the PCB is nH

Thank you!

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TPS54340B: prevent Vout to reach Vin in case of resistor feedback failure?

September 24, 2019, 1:49 am
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Part Number: TPS54340B

Team,

Regarding FMECA analysis in power supply:
Looking at the TPS54340B diagram if there is a failure with one of the feedback resistors connected to FB then the Output VOUT reaches the Input level VIN:

What do we advise in general to prevent such scenario?
Are there some simple change to implement that could decrease the risks?

Thanks in advance!

A.

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EK-TM4C129EXL: RTOS/EK-TM4C129EXL: How can I generate the current time in milliseconds?

September 24, 2019, 1:54 am
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Part Number: EK-TM4C129EXL

Hi,
I have a battery on pin VBAT and an external 32.768kHz crystal.

I want to generate a system time that gives me the current time in milliseconds even when the supply voltage is off.

Currently I use the function time (NULL). This feature only gives me the time in seconds.

How can I realize a real-time clock powered by the 32,768 crystal and continue to run when the supply voltage is turned off.

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TPA3138D2: Placement of Snubber circuit

September 24, 2019, 1:54 am
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Part Number: TPA3138D2

Hello 

 My customer is considering to use L and C for TPA3138D2 output. 

Where is recommended position for snubber circuit?      

    After L and C?

   Before L and C?

Datasheet Fig 20 mentioned snubber circuit is placed after FB and C.

Regards,

Ryoji Ito

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SN75DP159: Violate VCC/VDD Power-Up Timing

September 24, 2019, 1:55 am
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Part Number: SN75DP159

Dear Team,

My customer measured the power up timing of VDD and VCC. They found that sometimes Td1 is less than 200us. 

The reason is that LDO TLV75511PDQNR has 550 us (typ) startup time. 

We want to know what is the side effect if the power-up timing doesn't meet this spec? 

Thank you.

Jim

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TLV62090: May we have TLV62090 control loop test report?

September 24, 2019, 1:56 am
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Part Number: TLV62090

Hi Sir 

May we have TLV62090 control loop test report?

                                             Bogey

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TPS23861: tps23861 configuration

September 24, 2019, 1:59 am
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Part Number: TPS23861

HI

Currently my client is developing ip cam using tps23861 and tps23754.

There were three customer inquiries

We would like to apply tps23861-tps23754 x 2(parallel).

One TPS23754 is continuously connected.

The connection of the second TPS23754 is then different.


1) Is TPS23861 automatically negotiated and changed in the above situation? (POE +-> POE, POE-> POE +)

2) How do you monitor PSE from the PD side?

3) In order to connect 2 IP CAMs, we want to configure as below due to length problem. Is it possible?

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[TDA4M] CCS Setup failed .

September 24, 2019, 2:03 am
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We are planning to do some example check using CCS on TDA4 EVM board.

I follow the CCS Setup steps in "Processor SDK RTOS Automotive User Guide".

When I do the action in step 4, execute the load command in the scripting console.

It always failed and stuck at  Running the board configuration initialization from R5!

The error message is :

Error loading "/home/tda4dev/psdk_rtos_auto_j7_06_00_00_00/pdk/packages/ti/drv/sciclient/tools/ccsLoadDmsc/j721e/sciclient_ccs_init_mcu1_0_release.xer5f": Timed out after 20000ms while waiting for target to halt after an auto-run to "main (/home/tda4dev/psdk_rtos_auto_j7_06_00_00_00/pdk/packages/ti/drv/sciclient/tools/ccsLoadDmsc/j721e/launch.js#125) (/home/tda4dev/psdk_rtos_auto_j7_06_00_00_00/pdk/packages/ti/drv/sciclient/tools/ccsLoadDmsc/j721e/launch.js#125)

Is there some step missing in this user guide ?

I tried the CCS Setup steps in linux and windows environment and got the same error.

Windows 10 Professional 64 bit, Code Composer Studio version 9.1.0.00010

Ubuntu 18.04 64 bit, Code Composer Studio version 9.1.0.00010

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TPS53667: Pd of power-stage

September 24, 2019, 2:20 am
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Part Number: TPS53667

Hi E2E,

Because CSD95490 don't shows any MOS data on datasheet.

Our customer want to use TPS53667+CSD95490 and want to assess Power loss.

Could you kindly let us know how much power loss on the power stage as below 4 rail?

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TMS320F28027F: I want to understand more about electric motors to use instaspin foc, permanent magnets or brushless motor to be precise. Where can I find information of this topic?

September 24, 2019, 2:21 am
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Part Number: TMS320F28027F

I´m making a custom HW board to control a 100kv hobby brushless motor. I want to configure all the parameters correctly, but I think I know a litlle of these motors. 

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BQ25606: BQ25606

September 24, 2019, 2:21 am
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Part Number: BQ25606

i want to ask about VINDPM function,

if the charger IC Iin limit set current 1.5A but adaptor max power 5V/1A

Could the charger IC enter VINDPM protecion and did not damage adaptor? 

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TDA3LA: EMI/other impacts when JTAG TMS ball is floating

September 24, 2019, 2:22 am
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Part Number: TDA3LA

Hi Champs,

in a single camera design the JTAG port used to be routed to a connector as its is meant to be. However, for production the connector will not be populated. The TMS ball J3 from TDA3LA ABF package is not pulled but kept floating. 

Can you please state whether the ball J3 is going to float or whether the ball will cause EMI issues?

The ball offers internal pull up/down options. May those help to avoid possible risk?

Signal name:        Description:

tms                       JTAG test port mode select. An external pull-up resistor should be used on this ball. J3

Many thanks

Thorsten

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TPS536C7 GUI

September 24, 2019, 2:23 am
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Hi E2E,

Our customer use TPS536C7 to design, but the GUI on TI web site do not support it.

could you kindly share the GUI which can support TPS536C7 to me? 

Thanks!

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