• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 30 subscribers
  • Views 356 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TM4C1233H6PM ADC

wooz
Prodigy 220 points
Other Parts Discussed in Thread: TM4C1233H6PM

Hi,

I have been using TM4C1233H6PM and ı want to use ADC as fast as it possible. I want to ask some questions about configure ADC. Do i have to use multiple channel? What is differences between sample sequencer 0 and sample sequencer 3?

  • 0
    TI__Guru 59540 points
    Hello Oguz,

    The maximum sample rate possible is 1M samples/second sample rate. You can use the ADC sample phase feature to accomplish this using both ADC0 and ADC1 sampling the same signal/channel. For more details see section 13.3.2.5 in the datasheet/user manual for details.

    From the register definitions in the Datasheet, Sample Sequencer(SS) 3 only has one channel that can be configured where as SS0-2 have multiple channels. For maximum sample rate, you could use SS3 and assign it to both ADC0 and 1 where ADC0 samples at Phase 0 and ADC1 at a phase of 180.
  • 0 in reply to Chuck Davenport
    Prodigy 220 points
    Hi Chuck,

    Thanks for your answer. İ did not understand that could i use SS3 for maximum sample rate?
  • 0 in reply to wooz
    TI__Guru 59540 points
    Hello Oguz,

    SS3 has only one channel in the grouping and thus would be well suited for your use case. However, you are not limited to using SS3 to get the maximum sample rate.

    The other SS0-2 have multiple channels associated with them and would be useful if you have some other times when you have multiple signals to sample. If you wanted to use one of the other Sample Sequencers 0-2, you are welcome to do so but you would need to program it to contain only 1 channel by setting the end bit for the first channel location of the Sequencer.