TPS65910: PWRHOLD connection

December 16, 2019, 12:54 am

≫ Next: CCS/CC2642R: Bluetooth® forum

≪ Previous: CSD25310Q2: CSD25310Q2 ESD HBM/CDM/MM data

$

0

0

Part Number: TPS65910

Hi, we are changing the PMIC from TPS65910AA1 to TPS65910A3A1 to support for DDR3 device on an existing product. The PWRHOLD pin was connected to VDDS_DDR(SWIO output) in current product, see below schematic, we realized that the HI level margin become less for the PWRHOLD after the change, as VDDS_DDR from 1.8V to 1.5V. 

We did a experiment on current product that connect the PWRHOLD to the output of VDAC output, but the system cannot power down successfully. Only we change to VAUX33, the system can power off. 

Could you help me to understand the reason of the behavior?

---

CCS/CC2642R: Bluetooth® forum

December 16, 2019, 12:54 am

≫ Next: BQ24133: BQ24133 ESD HBM/CDM/MM

≪ Previous: TPS65910: PWRHOLD connection

$

0

0

Part Number: CC2642R

Tool/software: Code Composer Studio

Hi,

I work with CC2642R BLE module MCU. I try to create my board files for my PCB(no evaluation KIT CC26X2R1_LAUNCHXL).

I tried to work according to <SDL_INSTALL_LOCATION>/docs/ble5stack/ble_user_guide/html/ble-stack-5.x/custom-hardware.html instruction step by step.

At the end of the work, I got a linker error message as described in the attached picture.

I also tried https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/715365?tisearch=e2e-quicksearch&keymatch=error:%20symbol, but it didn't help me.

BQ24133: BQ24133 ESD HBM/CDM/MM

December 16, 2019, 12:54 am

≫ Next: CCS/TMS320F28035: can not read system setup data xml file

≪ Previous: CCS/CC2642R: Bluetooth® forum

$

0

0

Part Number: BQ24133

Hi Sir

Could you help to share ESD HBM/CD/MM data? Since I can't find it in spec.

Thanks for your great support.

CCS/TMS320F28035: can not read system setup data xml file

December 16, 2019, 12:55 am

≫ Next: CSD97395Q4M: CSD97395/CSD95373 Undershoot Spec

≪ Previous: BQ24133: BQ24133 ESD HBM/CDM/MM

$

0

0

Part Number: TMS320F28035

Tool/software: Code Composer Studio

can not read system setup data xml file on ccs v8.0

CSD97395Q4M: CSD97395/CSD95373 Undershoot Spec

December 16, 2019, 12:56 am

≫ Next: CSD22206W: CSD22206W ESD HBM/CDM/MM

≪ Previous: CCS/TMS320F28035: can not read system setup data xml file

$

0

0

Part Number: CSD97395Q4M

Hi Team,

When testing CSD97395/CSD95373, our customer found that the SW node undershoot less than -0.3V is longer than 10ns, please refer to the waveform below.(They use TPS53626+CSD97395/CSD95373)

On the datasheet, it says that Vsw shouldn't be under -7V for longer than 10ns. Could you please have a look at the waveform above and give some comments about will this undershoot cause any damage to the device?

Thanks.

Best Regards,

Livia

CSD22206W: CSD22206W ESD HBM/CDM/MM

December 16, 2019, 12:56 am

≫ Next: TLV2371: TLV2371 ESD HBM/CDM/MM data

≪ Previous: CSD97395Q4M: CSD97395/CSD95373 Undershoot Spec

$

0

0

Part Number: CSD22206W

Hi Sir

Could you help to share ESD HBM/CD/MM data? Since I can't find it in spec.

Thanks for your great support.

TLV2371: TLV2371 ESD HBM/CDM/MM data

December 16, 2019, 12:58 am

≫ Next: WL1837MOD: “PerSubBandRxTraceLoss” parameters in .ini file (swru422a)

≪ Previous: CSD22206W: CSD22206W ESD HBM/CDM/MM

$

0

0

Part Number: TLV2371

Hi Sir

Could you help to share ESD HBM/CD/MM data? Since I can't find it in spec.

Thanks for your great support.

WL1837MOD: “PerSubBandRxTraceLoss” parameters in .ini file (swru422a)

December 16, 2019, 1:02 am

≫ Next: AM3358: SD card image

≪ Previous: TLV2371: TLV2371 ESD HBM/CDM/MM data

$

0

0

Part Number: WL1837MOD

What is the purpose of “PerSubBandRxTraceLoss” parameters in .ini file (swru422a):

1. “for the correct RSSI reading on the solution boundary” -> what is the benefit in practice compared to plain RSSI seen by the SoC?
2. There are module specific (e.g. WL1837MOD) .ini files available with different PerSubBandRxTraceLoss configuration -> does it mean that each particular configuration normalizes the RSSI per sub band to the antenna port of the module (=solution boundary), instead of the SoC?
3. If PerSubBandRxTraceLoss is set to zero, is plain RSSI seen by the SoC reported?

---

AM3358: SD card image

December 16, 2019, 1:04 am

≫ Next: DRV5055: About frequency characteristic @DRV5055

≪ Previous: WL1837MOD: “PerSubBandRxTraceLoss” parameters in .ini file (swru422a)

$

0

0

Part Number: AM3358

Hi. there.

I would like to create an SD card image using the link below.
software-dl.ti.com/.../index_overview.html

The order of progress is as follows:
=========================================================================================

1. Fix dts file.
  ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/linux-4.19.59+gitAUTOINC+5f8c1c6121-g5f8c1c6121/arch/arm/boot/dts/am335x-evmsk.dts

2. make & install
  cd /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08
  sudo make all
  sudo make install

3. make sd card image
  3.1 Insert sd card.
  3.2 run script
    cd /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/bin$
    sudo ./create-sdcard.sh

4. Select 2 when the script prompts you to choose "Choose file path to install from" (Enter in custom boot and rootfs file paths)

=========================================================================================
Q1. What path should I set when the script asks me for "Enter path for boot partition"?
    Is the following path correct?
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a

Q2. Which number should I set when the script asks me for "Kernel Image and Device Trees files"? (In custom boot and rootfs)

Q3. If I chose number 1 in Q2, what path should I set when the script asks for "Enter path of rootfs partition"?

If I chose 2 in Q2.
Q4. What path should I set when the script asks me for "Enter path for kernel image and device tree files"?
    The path of the zImage is:
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/linux-4.19.59+gitAUTOINC+5f8c1c6121-g5f8c1c6121/arch/arm/boot/zImage
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/targetNFS/boot/zImage
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/boot/zImage

    The path of the DTS file is as follows:
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/prebuilt-images/am335x-evmsk.dtb
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/linux-4.19.59+gitAUTOINC+5f8c1c6121-g5f8c1c6121/arch/arm/boot/dts/am335x-evmsk.dtb
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/board-support/u-boot-2019.01+gitAUTOINC+029e4c009a-g029e4c009a/arch/arm/dts/am335x-evmsk.dtb
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/targetNFS/boot/am335x-evmsk.dtb
    /home/vm/ti-processor-sdk-linux-am335x-evm-06.01.00.08/linux-devkit/sysroots/armv7at2hf-neon-linux-gnueabi/boot/am335x-evmsk.dtb

Q5. If the script asks for "Enter path of rootfs partition", can I enter the same path as Q3?

Thank you in advance.

DRV5055: About frequency characteristic @DRV5055

December 16, 2019, 1:04 am

≫ Next: DP83849I: Availability of Ethernet Phy chip device driver

≪ Previous: AM3358: SD card image

$

0

0

Part Number: DRV5055

Hi team

Our customer is considering using high speed hole sensor for measuring instrument.

The datasheet says sensing frequency of this device is 20kHz.

I want the graph of this frequency characteristic (frequency vs gain).

Do you have any data?

And, the customer intends to use other product than this device which sensing frequency is 100kHz.

We try to replace to TI's product.

Do you have any information about the reriase of hole sensor with sensing frequency equal to 100kHz or around.

Best regards.

DP83849I: Availability of Ethernet Phy chip device driver

December 16, 2019, 1:05 am

≫ Next: ULN2003A: EMC static test issue

≪ Previous: DRV5055: About frequency characteristic @DRV5055

$

0

0

Part Number: DP83849I

Hi,

We are planning to integrate DP83849I or DP83825I TI Ethernet Phy chips in one of our projects. When we are looking for the device drivers for the following Ethernet Phy chips we were unable to locate it in the kernel source code, we are using Linux kernel version 4.14.98.

Can you please support us in getting any of the above device drivers so that we can freeze our design. Our first preference will be DP83849I Ethernet Phy chip device driver.

Thanks in advance.

ULN2003A: EMC static test issue

December 16, 2019, 1:08 am

≫ Next: INA199: output error

≪ Previous: DP83849I: Availability of Ethernet Phy chip device driver

$

0

0

Part Number: ULN2003A

Hi team,

After doing the EMC static test, the customer found that Uln2003 was damaged, the details are as follows;

1. Test method: contact discharge, ± 8Kv, 10 strokes.

   Application: 2003 driving electronic expansion valve.

   Phenomenon: One of the outputs is short-circuited to ground.

2. Customer’s question:

• What is the static level of this material?

• Have you encountered similar situations before and how did you rectify them?

      3. My analysis and answer

• The static level of this test is realated to the HBM in datasheet which is 8Kv.

• This Voltage range 8kv of the test has over the HBM (2kV) in datasheet so that the ULN2003 can’t afford.

Do I understand correctly? Could you please double-check my answer ? you can give your answer if you have any better answer.

Best Regards

Wesley Huang

wesley-huang@ti.com

 

INA199: output error

December 16, 2019, 1:14 am

≫ Next: SN74LVC1G125: OP temp testing measure

≪ Previous: ULN2003A: EMC static test issue

$

0

0

Part Number: INA199

Hi team,

My customer is using INA199A1 for their new project.

But the output is not precise.

Here is the operating condition:

1. I=1.5A

2. Rshunt=8 m ohm 

3. voltage over Rshunt=12mV

4. The output of INA199A1=560mV

What will cause the unexpected gain error?

Could you provide the solution?

Thanks!

Jamie

SN74LVC1G125: OP temp testing measure

December 16, 2019, 1:17 am

≫ Next: TPS54336A: duty cycle

≪ Previous: INA199: output error

$

0

0

Part Number: SN74LVC1G125

Hi team,

My customer want to know how the TI test the Operating free-air temperature when calibrating OP temp? How far is the air temperature to test from the chip body?

Best Regards

Wesley Huang

wesley-huang@ti.com

TPS54336A: duty cycle

December 16, 2019, 1:19 am

≫ Next: AM3359: Error PRU cmd file

≪ Previous: SN74LVC1G125: OP temp testing measure

$

0

0

Part Number: TPS54336A

Dears

when we use the TPS54336A, we find a confuse about the MIN ON time, off time, need your support to classify it.

1. 90% - 90% of Vin, what is this means.

2. min off is 0 until the Vboot > 3V? means can be 100% duty before the Vboot below 3V, right.

Great thanks

Jun Shen

---

AM3359: Error PRU cmd file

December 16, 2019, 1:20 am

≫ Next: WEBENCH® Tools/UCC28C43-EP: UCC28C43-EP

≪ Previous: TPS54336A: duty cycle

$

0

0

Part Number: AM3359

Hello Community,

I am getting below error, I am using files as it is from PDK.

"makefile:624: recipe for target 'ICE_Quadnet_Demo.out' failed
/media/Data/TI-Data/BB-Data/Shared/BB_Shared/gcc-arm-none-eabi-4_9-2015q3/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/bin/ld:../ti/drv/icss_emac/firmware/cmd/PRU0_REV1_to_ARM.cmd:1: syntax error"

Please let me know if I missing anything.

Regards,

Pankaj

WEBENCH® Tools/UCC28C43-EP: UCC28C43-EP

December 16, 2019, 1:20 am

≫ Next: TMS320F28069M: The problem of resetting the position

≪ Previous: AM3359: Error PRU cmd file

$

0

0

Part Number: UCC28C43-EP

Tool/software: WEBENCH® Design Tools

(Please visit the site to view this file)(Please visit the site to view this file)I have a web bench design for a 75V to 395V DC input and output of 33V@2.6A with opto feedback DCM

I have replicated the design in Tina TI (Free and Cloud)

1. The design does not startup with the opto configured as per web bench design. There could be an opto model issue which i am not sure off.

2. It does startup if the Vref on the opto is dropped as done by R8

3. The output is not regulated with opto feedback.

4. With various design constraints the opto proposed to be used is SFH-617A-2x009T

4. With a direct feed back from output 1 (R4 and R5 ) instead of opto output. The system has an output but not constant. This could be because of the compensation network values not being  matched to non isolated design.

The web bench design and TINA simulation attached.

TMS320F28069M: The problem of resetting the position

December 16, 2019, 1:22 am

≫ Next: DS90UB941AS-Q1: DSI input problems

≪ Previous: WEBENCH® Tools/UCC28C43-EP: UCC28C43-EP

$

0

0

Part Number: TMS320F28069M

Dear team:

In the lab13b, I want to reset the location information (PosStepInt_Mrev) before the end of qep, but it was found that the original motor rotation plan could not be covered.

What do I need to do if I want to change the number of turns immediately?  Eg:

Set PosStepInt_Mrev = 100, When it turns to the 10th circle, set  PosStepInt_Mrev = -50, and make it reverse immediately.

Best regards

DS90UB941AS-Q1: DSI input problems

December 16, 2019, 1:22 am

≫ Next: CCS/PROCESSOR-SDK-AM65X: CCS/PROCESSOR-SDK-AM65X: Fail to Debug bare-metal programs for R5f

≪ Previous: TMS320F28069M: The problem of resetting the position

$

0

0

Part Number: DS90UB941AS-Q1

It seems like I can not get the DSI input to the serializer to work properly.

Reported errors:
- DSI Port 0 indirect register 28 - DSI CRC Checksum error - Constantly active
- DSI Port 0 indirect register 0 - Error counter is constantly 0 (Why, if we constantly have errors?)
- Register 5A bit 2 = 0. DSI PLL Not locked. (Should be locked?)
- DSI Port 0 indirect register 3A/3B - Indicates M/N = 2/3, should be 1/3?

Maybe there is something more I have missed

Serializer setup:
Single mode (Single DSI input, single output)
Continuous DSI clock as Bridge clocking mode.

DSI input:
1920 x 720 pixels, 24-bit RGB
Pixel clocks of 95, 91 and 66 MHz has been tested - no difference.
Register readouts are from 66 MHz test.
4 - lane DSI.
Sync signals.

Receiver end is a DS90UB948-Q1 deserializer.

Complete register readout:

Serializer main registers
00: 24 00 00 9A 10 00 58 00
08: 00 01 41 0A 47 30 00 00
10: 00 00 00 BB 00 00 FE 1E
18: 7F 7F 01 00 00 00 01 00
20: 0B 00 25 00 00 00 00 00
28: 01 20 20 A0 00 00 A5 5A
30: 00 09 00 05 0C 00 00 00
38: 00 00 00 00 00 00 81 02
40: 09 3F 00 00 00 00 00 00
48: 00 00 00 00 00 00 00 8C
50: 16 00 00 00 00 00 00 02
58: 00 00 D9 81 07 06 44 42
60: 22 02 00 00 10 00 00 00
68: 00 00 00 00 00 00 20 00
70: 00 00 00 00 00 00 00 00
78: 00 00 00 00 00 00 7E 00

DSI Port 0 indirect registers
00: 00 00 00 18 1C 10 00 00
08: 00 00 00 00 00 00 00 1F
10: 00 00 00 00 00 00 00 00
18: 00 00 00 00 00 00 00 00
20: 7F 60 FF 7F 00 00 00 00
28: 01 FF 3E 04 00 00 00 00
30: 00 20 00 04 00 20 00 00
38: 00 00 02 03 00 00 00 00

DSI Port 1 indirect registers
00: 00 00 00 18 1C 10 00 00
08: 00 00 00 00 00 00 00 10
10: 00 00 00 00 00 00 00 00
18: 00 00 00 00 00 00 00 00
20: 7F 60 FF 7F 00 00 00 00
28: 00 00 00 00 00 00 00 00
30: 00 20 00 04 00 20 00 00
38: 00 00 02 03 00 00 00 00

I have tried to change DSI timing parameters.
This can make DPHY errors appear, but does not seem to get anything else better.

Anya ideas?

/Peter

CCS/PROCESSOR-SDK-AM65X: CCS/PROCESSOR-SDK-AM65X: Fail to Debug bare-metal programs for R5f

December 16, 2019, 1:22 am

≫ Next: CCS/CC3220S-LAUNCHXL: Is cc3220s-launchxl compatible with cc3220sf to write program?

≪ Previous: DS90UB941AS-Q1: DSI input problems

$

0

0

Part Number: PROCESSOR-SDK-AM65X

Tool/software: Code Composer Studio

Hi everyone

The environment setup:

• CCS v9.10
• PROCESSOR-SDK-RTOS-AM65X v05.02
• AM65X IDK module
• pdk_am65xx_1_0_6(ti-processor-sdk-rtos-am65xx-evm-06.01.00.08-Windows-x86-Install.exe)

I'm following this issue 

and success to Finished building target : R5f.out

But i have some problems about  using proper target configuration:

At first :I try to follow this  

In Device Debugging ,

After right click on DMSC_Cortex_M3_0 and click connect to target. After connecting to the M3, right click on MCU_PULSAR_Cortex_R5_0 and connect to it.

I found that "no symbols are defined" under MCU_PULSAR_Cortex_R5_0  

and than ,I navigate to RUN -->Load-->Load Program-->my.out

it still show  "no symbols are defined" 

I think it is lds file problems ，because I try to  substitute  MCU0_R5F_TCMA  for  MSMC3

EX:  .text    : {} palign(8) > MSMC3  --> .text    : {} palign(8) > MCU0_R5F_TCMA

it is work  

but i still want to use MSMC to complete it 

Can you give me some comments? thanks