• BQ32000: assert IRQ in specific time

  

  Ann_Lien

  TI Thinks Resolved

  Part Number: BQ32000 Hello expert, Based on below E2E link, we would like to search a solution which could assert IRQ in specific time like every day 4:00/8:00/12:00. For BQ32000, it seems like it should have a MCU or host to set OUT/FT/FTF to change…

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: Clock & timing forum

  

  QHAING JO

  Part Number: BQ32000 Hi teams, We have been applying the BQ32000 to our products. In some products manufactured last month, when the power was turned off, there was a problem of RTC reset. As a result of the analysis, it was found that the OSC waveform…

  • 8 months ago
  • Clock & timing
  • Clock & timing forum

• RE: BQ32000: RTC Time Inconsitant & Resetting

  

  Lane Boyd

  Thanks for the info. The time-keeping registers update once per second, and can take up to one second to update after supply switchover. This explains why it is possible to observe 1 second delay after each supply switchover. Kind regards, Lane

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: high time drift with temperature variation : how to reduce

  

  F_F_S

  TI Thinks Resolved

  Part Number: BQ32000 My problem is the drift with BQ32000DR and NX3215SA-32.768K-STD-MUA-8. The drift is -9 sec @ -30°C and -4 second @ +70°C. How Do I can reduce to 1 second/day from 0°C to 40°C and max 2 second/day <0°C or >40°C…

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• RE: BQ32000: how to understand "OF"?

  

  Derek Payne

  Hi Jerry, bq32000 doesn't have an EVM, and we don't have any designs with bq32000 readily available. Additionally, the California COVID lockdowns and the holidays have impacted our available resources. I don't think we will be able to provide an answer…

  • 8 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: about calibration update and initial/subsequent power cycle question

  

  Ann_Lien

  TI Thinks Resolved

  Part Number: BQ32000 Hello expert, My customer has a question on calibration and power cycle. We would like to know why will calibration update every 8 or 16 minutes depends on sign(S). I know the ppm meaning but don't know why it will update 8 or 16…

  • 7 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: BQ32000

  

  user5368116

  Part Number: BQ32000 Hi Lane, Is there any new information on the issue that the output amplitude of the BQ32000DR OSCI and OSCO pin is too small?

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum
Answered

• BQ32000: RTC Time Drift During VBAT & VCC switchover time

  

  Mohammed Azlum

  Resolved

  Part Number: BQ32000 We are using BQ32000DR in our custom design board. We have connected Super Capacitor as VBAT supply. We are facing below issue while testing the RTC during the power cycle. Issue description - RTC Time drift. There is time drift…

  • Resolved

  • 8 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: RTC time registers gets reset after power cycling

  

  nikhil jolly

  Part Number: BQ32000 hi, we use BQ32000 and super cap as backup supply for the rtc. On power cycling we observe the date and time getting reset in some cases . we could also observe a drift in the rtc time, which varies from 1 or 2 minutes upto 50 to…

  • 9 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• BQ32000: what's the error of time for BQ32000 after one day?

  

  Howard Zou

  Resolved

  Part Number: BQ32000 Hi, we are promoting BQ32000 against PCF8563, do we have spec for the maximum time error after BQ32000 have worked for one day or one year? Thanks.

  • Resolved

  • over 1 year ago
  • Clock & timing
  • Clock & timing forum

Didn't find what you are looking for? Post a new question.