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GMeyer
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HI, I use a TLE9862 device have the issue that PWM and LIN is not working after powering the target hardware. If I  pull the RESET pin low after power on (in order to trigger another reset), PWM and LIN is working.  Has anybody observed a similar behavior and can help me with that? Thanks in advance!

 

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Raj_C
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Hi @teya,

It is expected as per the settings in the IDE.

1) Reset is needed after programming:

Raj_JC_0-1679631685389.png

 

2) Reset is not needed :

Raj_JC_1-1679631740458.png

 

Thank you

Best Regards

Raj Chaudhari

View solution in original post

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Viswa
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Hi @GMeyer 

We would like to know if this behavior is observed on any custom hardware designed or on one of the Eval boards you are using. In-case of custom hardware please kindly share the schematic if possible.

Best Regards

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GMeyer
Level 2
Level 2
10 replies posted 10 sign-ins 5 replies posted

Hi Viswa,

the issue is present on our custom HW and also on the eval board (TLE986x EvalBoard)

BR

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GMeyer
Level 2
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HI Viswa,

the issue seems to be related to the rise time of the power supply. If I do a unplug/plug,  PWM and LIN is working. If I use the enable button of the power supply PWM and LIN is not working. The rise time of the 12V is slower in case of the enable button.

Is there any timing requirement regarding the rise time of the supply voltage?

Thanks in advance!

BR

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Raj_C
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Hi @GMeyer,

  • Due to the failure of supply and failed WDT1 service, the device may enter into sleep mode which is explained in the following state-machine chart.
  • Sleep mode can be checked by VDDP, VDDC or VDDEXT voltage levels.

Raj_JC_0-1676964293320.png

 

  • Additionally can you please share the supply waveform with Enable and direct for delay analysis?

Thank you

Best Regards

Raj Chaudhari

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GMeyer
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Hi Raj, 

screenshots from enable and direct plug are attached. By using the button it takes about 600ms until 12V is reached.
BR

 

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GMeyer
Level 2
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Hi Raj,

one update: According to the measured voltage levels the TLE is not in sleep...

BR

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Raj_C
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Hi @GMeyer,

1) Could you please let us know what are the measured voltages at VDDP, VDDC?

2) Can you share the voltage measurement at VS pin for enable and direct?

We have also forwarded your query to an internal team, we will update as soon as possible.


Thank you

Best Regards

Raj Chaudhari

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GMeyer
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HI Raj,

1. VDDP:  5V, VDDC: 1,6V

2. screenshots attached: red - Vs; blue - power supply
BR

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GMeyer
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Hi Raj,

any updates from your side?

BR

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Raj_C
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Hi @GMeyer ,

We have forwarded your query to our internal team, who will evaluate your query.
We will provide a response as soon as we get an update from our internal team.
Thank you for your patience.

Thanks and Regards,
Raj Chaudhari

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GMeyer
Level 2
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Hi Raj, 
are there any updates here?

BR

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Raj_C
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Hi @GMeyer,

Thanks for your patience!!

I checked with the internal team and they need additional information, please provide the following information:

  • Which revision of the Eval Board is being used?
  • Have you tried one of the example SW projects provided by Infineon and the device did not turn on after turning on the power supply? Or is it observed in the custom SW?
  • Have you tried a different power supply and observed the same behavior?

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
Level 2
10 replies posted 10 sign-ins 5 replies posted

Hi Raj,

1. I'm using TLE986x Eval board Rev V1.2

2. I can also reproduce the issue using an example (BDRV_EMO_DC_EXAMPLE_TLE986X) and changing the main function to:

int main(void)
{
/*****************************************************************************
** Initialization of the hardware modules based on the configuration set **
** in Config Wizard **
*****************************************************************************/
TLE_Init();

CCU6_StartTmr_T12();
BDRV_Set_Bridge(Ch_PWM, Ch_PWM, Ch_PWM, Ch_PWM); // TLE986x -> DC
CCU6_Ch0_Value_Set(1000 * 10 / 105);
CCU6_T12_Str_En();


for (;;)
{
(void)WDT1_Service();
}
}

If I use the original main function the motor does only start when I start a debug session...

3. If I unplug and plug the the voltage cable the motor starts turning, if I use the on/off button (which increases the supply voltage with the already decribed ramp) the motor is not turning.

BR

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Raj_C
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Hi @GMeyer,

Thanks for the information.

1) Could you please share the complete part number used?

2) Please also share the Keil Project file with us to verify all the settings.

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
Level 2
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Hi Raj,

The part nuber is:

  • TLE98620X
  • A40
  • 2V7 62105

The keil project is attached:

BR

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GMeyer
Level 2
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HI Raj,

are there any updates from your side?

BR

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Raj_C
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Hi @GMeyer,

I checked your project could you please confirm the following details:

1) Is the attached project used to program the custom board, which has TLE9862QXA40?

If yes, then you will need to select the correct device in the Device panel.

Raj_JC_0-1681220740364.png

  • Please go to Options for Target in Keil >> Go to the Device menu and add your device TLE9862QXA40 (please verify with chip) part. Make necessary steps to resolve all popups.
  • Go to Debug menu->Settings->Flash Download and confirm if TLE9862QXA40 is selected with the correct Flash size is selected.
  • Additionally, you need to make changes in the ConfigWizard for TLE9862QXA40. Make all the necessary settings for the application.

If no,

 

Is there a possibility to check on the other power supply?

(Based on your response I will convey the information to the internal team).

 

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
Level 2
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Hi Raj,

I used the project to flash the evaluation board so the answer to 1) is no.

As already stated: if you simply unplug/plug the eval board it is working, if you use the power supply with the ramp it does not work.

BR

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Raj_C
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Hi @GMeyer,

There are two Eval boards available from Infineon for TLE986x devices:

Raj_JC_0-1681368508215.png

 

As mentioned in your previous response you are using the TLE986x Eval board. Which is the 2nd board in above figure.

If you are using the second evalboard please confirm if chip mounted is TLE9862QXA40 or not.

If TLE9862QXA40  is mounted you will need to make changes as mentioned in my previous response.

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
Level 2
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Hi Raj,

we are using this eval board: (see picture)

BR

tleEvalboard.PNG

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Raj_C
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Hi @GMeyer,

Are you mounting the TLE9862QXA40 chip and programming the attached program from your previous response? (Re: PWM/ LIN not working after power on )

Raj_JC_0-1681373198029.png

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
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Yes!

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Raj_C
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Hi @GMeyer,

As TLE9862QXA40  is being mounted please make the changes mentioned in my this response: Re: PWM/ LIN not working after power on .

Hi @GMeyer,

I checked your project could you please confirm the following details:

1) Is the attached project used to program the custom board, which has TLE9862QXA40?

If yes, then you will need to select the correct device in the Device panel.

Raj_JC_0-1681375828412.png

 

  • Please go to Options for Target in Keil >> Go to the Device menu and add your device TLE9862QXA40 (please verify with chip) part. Make necessary steps to resolve all popups.
  • Go to Debug menu->Settings->Flash Download and confirm if TLE9862QXA40 is selected with the correct Flash size is selected.
  • Additionally, you need to make changes in the ConfigWizard for TLE9862QXA40. Make all the necessary settings for the application.


Because this code example is developed for TLE982QXA20 and it being loaded to TLE9862QXA40 which will cause the conflict.

Thank you

Best Regards

Raj Chaudhari

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GMeyer
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Hi Raj,

I updated the sample project according your description. The issue is still present:

- use on/off button of powersupply -> no PWM generated

- unplug/plug 12 V cable -> PWM generated

The updated project is attached!

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GMeyer
Level 2
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Hi Raj, 

are there any updates from your side?

BR

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Raj_C
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Hi @GMeyer,

Thanks for your patience.

We are not observing this strange phenomenon at our side. We strongly recommend you to check with the other power source.

Thank you

Best Regards

Raj Chaudhari

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GMeyer
Level 2
Level 2
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Hi Raj,

if you want to check on your side, we are using the following power supply:

Lab power supply 0...40 V/0...10 A | Series PS 3000C 160 up to 650 W | DC Laboratory Power Supplies ...

BR

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teya
Level 3
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Hi,

Just to let you know that the same issue occurs when the software is loaded, i.e. it requires an additional reset (I'm using the reset button) in order to start. The EvalBoard is 2.0, the MCU is TLE9879QTW40. The IDE is uVison 5, the integrated on the EvalBoard J-Link is used. But it does start when the a debug session is started: The J-link debuger is set to load the program and to stop and main, then hitting run program and it's started.

Best Regards,

Tenko Yavashev

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Raj_C
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500 replies posted 50 likes received 250 replies posted

Hi @teya,

It is expected as per the settings in the IDE.

1) Reset is needed after programming:

Raj_JC_0-1679631685389.png

 

2) Reset is not needed :

Raj_JC_1-1679631740458.png

 

Thank you

Best Regards

Raj Chaudhari

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teya
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Thank you.

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