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RE: BOOSTXL-DRV8301: How to boot from flash -- read almost everything but can't get it to work

March 13, 2017, 8:38 am
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Solved. 

Upgraded the motorware ... no help but mercifully simple.

Then the penny dropped.

I used the 'debug' button as a short cut to connect to the target and flash the code because it is just one click instead of launching a configuration, connecting target, loading flash.

Unfortunately I did not appreciate that after clicking the cute bug icon the CCS place a break point in the code that does not get removed unless I disconnect the target. Or something like that ...

now when I click 'debug' and then disconnect target the flash gets programmed and the code runs standalone if the dip switch is set as in my first picture.

How embarrassing --- but thought I owed it to everyone to share this conclusion.

Thanks!

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RE: BOOSTXL-DRV8301: How to boot from flash -- read almost everything but can't get it to work

March 13, 2017, 8:52 am
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Hey Kusti,

There you go. These events happen to everyone!

Please let us know if there are any issues with the ADC inputs.

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BOOSTXL-DRV8301: How to boot from flash -- read almost everything but can't get it to work

March 8, 2017, 6:47 am
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Part Number: BOOSTXL-DRV8301

Hi,

I've been up and down the information highway including this forum all day but still can't boot from Flash.

This must be something very simple and I'm sure I will feel like a complete idiot when the penny finally drops but here goes...

I'm working with:

BOOSTXL-DRV8301 + LAUNCHXL-F28027 and

CCS 5 + motorware-foc

Specifically:

C:\ti\motorware\motorware_1_01_00_12\sw\solutions\instaspin_foc\boards\boostxldrv8301_revB\f28x\f2802xF\projects\ccs5\proj_lab05b

I've modified the project so I can read two GPIO inputs (16&17) and one ADC channel (B6) and use them to control 

  gMotorVars.Flag_enableSys 

  gMotorVars.Flag_Run_Identify 

  gMotorVars.SpeedRef_krpm  

so that I do not need the debugger to be able to start the motor and control the speed.

Works like charm when launched from with CCS debugger.

If I set the boot mode switches as in attached picture (1=ON/UP, 2=ON/UP, 3=OFF/DOWN)

remove USB cable and power cycle the system the software does not start.

But as soon as I connect the USB cable the software starts (no need to start the debugger,

in fact, if I connect the USB cable to my Mac that is enough enough to induce the Launchpad

to boot from the Flash).

So I think I've got the program happily in the Flash and it can be run from there and it does

not need any interaction with/via the debugger but something

is wrong with my boot switches or some settings in the project, though from what I've read

I think the lab05b project should 'just work' with the correct boot switch settings.

I've read just about everything in this forum and TI documentation that I can find related to

this issue but have not been able to solve this.

I found an almost identical post in the forum about this issue but no cure.

All tips highly appreciated.

I can include the project files if that helps and if someone can tell me what files to include and where to find them ...

me and the way TI organises the stuff on the disk don't get along ;)

cheers Kusti

 

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RE: DRV8844: Absolute Maximum Ratings of OUT1,OUT2,OUT3,OUT4

March 13, 2017, 5:37 pm
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Hi Rick,

 How is the progress about this question?

Best regards,

Shimizu

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RE: DRV8844: Absolute Maximum Ratings of OUT1,OUT2,OUT3,OUT4

March 13, 2017, 6:26 pm
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Hi Shimizu-san,

Sorry for the delay. Abs maximum of the OUTx pins should be -0.7V to VM + 0.7V.

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DRV8844: Absolute Maximum Ratings of OUT1,OUT2,OUT3,OUT4

March 7, 2017, 5:25 am
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Part Number: DRV8844

Hi,

My customer is using DRV8844.
Could you let me know the Absolute Maximum Ratings of OUT1,OUT2,OUT3,OUT4, please?

Best regards,
Shimizu

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RE: DRV 10983 EVM

March 14, 2017, 12:22 am
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Hi
Jung Chun Sik living in Korea
Thank you to Ti employees who supply DRV10983Ic with small, powerful and reasonable price. I am trying to produce a warm water pump of about 20-36 watts with this device. Current GUI EVM, EVM, USB2ANY, EVM-TB.430G2553 LaunchPad, ccs5.5, ccs6.1, ccs7.0, slou393, slou395, sloc316, DRV10983programming guide, .DRV10983device, and all Drv10983 FORUM, CCS Getting Star Video and so on. I did not find the parameters of the image like this, but of course I could build, load, debug, run etc in LounchPad, but I never entered it in LaunchPad and LounchPad did not emit light. Could it be caused by different version of LabView run time engine 2010? I have spent too much time developing the program, so I have a short time remaining. For reference, I captured the first page of Korean Labview version.
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DRV 10983 EVM

May 19, 2015, 5:01 am
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This is for Mr.  Milan Rajane.

I have used the  EVM and am not able to write  on to EEPROM.  Upon clicking of eeWrite message displayed is " make sure power supply is higher than 22V" even though it is 24 V.

Few  minutes back motor stopped rotating even though with the parameters filled in, it was rotating at 260 RPM with load, as desired, for few hours.  It is powered by 24 V battery. Can you please advise as to what may be going wrong?

I have not reported that I lost a 10983, with current limit of 2A

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RE: DRV8305-Q1: driver has abnormal waveform

March 14, 2017, 5:32 am
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Dears：

Thanks for your reply.

Picture 65,66,67 , CH2 is the low side driver

Picture 76,86,98, CH1 is the high side driver, CH2 is the low side driver

1- I mean the driver in picture 65 seems has low frequent noise ripple stack in MOSFET driver,  

2-i attached schematic , please help check if it has something wrong. Thanks.

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RE: DRV595: Increasing power capability

March 14, 2017, 5:37 am
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Hi Anders,

Our experts have been notified and should reply soon.
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DRV595: Increasing power capability

March 14, 2017, 12:08 am
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Part Number: DRV595

Dear whomever it concerns!

I have an application which now work well with one DRV595 but there is some risk involved with that maximum current will be reached( ambient will be no problem so I assume that I can go a bit higher than the 4A).

It is all about the trimming of the Peltier operation and how effective that works will not be understood unitl a later stage in the project. It depends alot on the system integration.

I want to make sure that I have a back-up plan.

The master slave mode is not described in any application notes.

Is it possible to increase current capacity with master/slave configuration by parallelling the outputs of two DRV595?

If this approach is not recommended what type of solution do you suggest?

Is the TI E2E post" Driving High power TEC module (64V/6A)" an alternative?

What are the drawbacks with that approach compared to the DRV595 except for the current capability?

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RE: DRV8830: VIH for I2C line

March 14, 2017, 5:48 am
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Hi Kawai-san,

SDA/SCL can accept 3.3V. A level shifter is not required.

Vil is considered a logic low below 0.25 x VCC. Vih is considered a logic high above 0.5 x VCC.

The typical values are the point where the switch typically occurs.
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DRV8830: VIH for I2C line

March 14, 2017, 2:54 am
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Part Number: DRV8830

Hi Team,

Please allow me to ask you about VIH level for I2C line used in DRV8830. Below is the specification in the datasheet.

[Question]
Does this mean that when VCC = 6.0V, the device SDA/SCL CANNOT accept 3.3V ? Not 3.3V tolerant and requires a level shifter ?
If you look at the Absolute Maximum Ratings spec, input pin voltage is up to 7V.

Thanks in advance.

Best Regards,

Kawai

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RE: DRV8842EVM: Problems with Evaluation module software CPG004-5

March 14, 2017, 5:52 am
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Hi Claus,

In the GUI there is a pulldown that allow changing com ports. Please make sure the correct com port is selected prior to connecting.

Can you provide a screen capture of the GUI and a screen capture of the device manager showing the Ports available?
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DRV8842EVM: Problems with Evaluation module software CPG004-5

March 14, 2017, 1:52 am
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Part Number: DRV8842EVM

Hey.

I have problems with the evaluation board.

I have tried to connect it to a computer and in the bottom of the window it says connected. But the Red/Green window never turns green and i cant do anything with the evalutaion board.

I have tried on windows 7 and windows XP

The program even says connected even thoug the USB cable isn't inserted.

Let me know what to do to make this work.

I am running the program with the windows xp compatibility mode. as it says in the ReadMe File.

It is the DRV 8842 evaluation module i have problems with.

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RE: Selection of MOSFET driver for switched reluctance motor with system voltages 48V and current 3A

March 14, 2017, 6:13 am
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Selection of MOSFET driver for switched reluctance motor with system voltages 48V and current 3A

March 14, 2017, 2:43 am
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Hi, 

For the selection of MOSFET driver, I need to know about the DRV series driver available. To my knowledge i believe there is no need for bootstrap for DRV series (for driving high side MOSFET switches) and i need to 6 output for 3 phase SRM. Looking for prompt reply. Let me know is any other details are needed.   

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RE: DRV8880EVM: "Error getting URL" during "Download from web" of "GUI Composer Runtime"

March 14, 2017, 9:08 am
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Hello Dietmar,
What step are you having problems with? For some reason the pictures did not upload and do not show. Please re-post them. Thank you
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RE: DRV8880EVM: "Error getting URL" during "Download from web" of "GUI Composer Runtime"

March 14, 2017, 9:08 am
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Hi Dietmar,

Please see the link: e2e.ti.com/.../1875115

If that does not help, please provide any logfiles. We will contact the gui composer experts.
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DRV8880EVM: "Error getting URL" during "Download from web" of "GUI Composer Runtime"

March 14, 2017, 8:25 am
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Part Number: DRV8880EVM

I am following the instructions:

and get the error:

What is the problem?

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