Information to provide when asking for help

Guru 58650 points

Sue Cozart

Replies: 15

Views: 7700

If you post a question asking for help with something, we almost always need to know which part you are using.  So please say which part in the first question and that will save an extra back and forth exchange where we ask you which part.

Second, for many questions we also need to know which tools you are using.  So if it is anything related to programming a part flash, or some problem compiling or anything else that might be remotely tool dependent, tell us which tools you are using.

So in summary, if it is not obvious from your question please provide any of the following you think is remotely relevant:

• what part/rev
• what tools
• your own board? eval board?
• crystal frequency

Guru 58650 points

Sue Cozart

• Apr 19, 2013 2:47 PM
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15 Replies

• Prodigy 30 points

  

  Emerson Hall

  

  • Jan 31, 2015 10:29 PM

  Ok!!
  what part/rev?
  Metering voltage from ADC, in fact AC voltage Vrms
  what tools?
  Coocox
  your own board? eval board?
  Stellaris EKI-LM3S6965 Evaluation KIT
  crystal frequency?
  Not defined yet

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• Guru 27285 points

  

  Roberto Romano

  

  • Feb 1, 2015 9:56 AM

  In reply to Emerson Hall:

  Beatiful!!!
  So read RMS from what source? Are you another ask to measure directly Line voltage and have no knowledge of how dangerous is?
  
  Eval lboard was provided with default clock crystal...
  Not defined yet ---> not possible to answer now...
  Lm3S series is NRND so it is no more available and end of life product. (not available, no spare part, not orderable)  New series is TIVA supported now.
  Example on old stellaris library, still supported but for short time, contain example of how to read ADC, then its your turn to evaluate RMS by math or reading from external RMS converter.
  NO DETAIL ----> NO ANSWER TOO!!!
  Seems university of somewhere give no knowledge and all came here asking solve what is impossible!!!

   Regards

   Roberto

  ---

   Please login & click    Verify Answer    if this post answered your question.

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• Prodigy 65 points

  

  rasimkilic1985

  

  • Aug 9, 2015 10:44 PM

  In reply to Roberto Romano:

  Hello,

  I have a TIVA-C 123GXL and it do not work.

  I bought TM4C123GH6PMI mcu and I have just changed the mcu but it does not work?

  What will I the problem? 

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• Prodigy 244215 points

  

  Amit Ashara

  

  • Aug 10, 2015 2:14 PM

  In reply to rasimkilic1985:

  Hello Rasim,,
  
  Was a new EK-TM4C123GXL not working or was it working and then stopped.
  
  1. Did you check if 3.3V supply is coming properly and the VDDC pin reads 1.2V/
  2. Did you check if the JTAG drivers when invoked in CCS work properly, e.g. using LMFlashProgrammer can you read the USer registers and if not then what error message do you get?
  
  e2e.ti.com/.../374640
  
  Regards
  Amit

  Regards,

  Amit Ashara

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• Prodigy 65 points

  

  rasimkilic1985

  

  • Aug 10, 2015 3:18 PM

  In reply to Amit Ashara:

  Probably, Does mcu want boot loader?

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• Prodigy 244215 points

  

  Amit Ashara

  

  • Aug 10, 2015 3:30 PM

  In reply to rasimkilic1985:

  Hello Rasimkilic1985,
  
  No it does not. The ROM Boot Loader is invoked automatically if the flash is empty. If not then the application code in the Flash is invoked.
  
  Regards
  Amit

  Regards,

  Amit Ashara

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• Prodigy 65 points

  

  rasimkilic1985

  

  • Aug 11, 2015 8:42 AM

  In reply to Amit Ashara:

  Hi Amit,
  
  The 3.3 V from power supply is coming properly but I can't read 1.2 V from VDDC pin. What should i do ?
  
  Thanks,
  Rasim

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• Prodigy 244215 points

  

  Amit Ashara

  

  • Aug 11, 2015 2:04 PM

  In reply to rasimkilic1985:

  Hello Rasimkilic1985,
  
  The VDDC pin comes on a probe via in the LaumchPad. Are you saying that the probe point does not show ~1.2V or you are not able to locate it?
  
  Regards
  Amit

  Regards,

  Amit Ashara

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• Prodigy 65 points

  

  rasimkilic1985

  

  • Aug 11, 2015 7:22 PM

  In reply to Amit Ashara:

  Every thing is ok :D is problem solved.
  
  I changed the MCU.
  
  It is failed, I did not understand that how is it?

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• Prodigy 244215 points

  

  Amit Ashara

  

  • Aug 11, 2015 7:33 PM

  In reply to rasimkilic1985:

  Hello Rasimkilic1985,
  
  Make sure that you document the steps this time so that if the MCU fails we can have the Root Cause
  
  Regards
  Amit

  Regards,

  Amit Ashara

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