groupUrl: https://ez.analog.com/cn/clockdds/
Analog.com
Analog
Dialogue
Wiki
English
English
EngineerZone
Site
Search
User
Site
Search
User
EngineerZone
Search
Log in
Site
Search
Log in
Home
Blogs ⌵
EZ Spotlight
The Engineering Mind
Browse ⌵
All Groups
All Members
Support ⌵
3D ToF Depth Sensing
A2B
Aerospace and Defense (ADEF)
Amplifiers
Analog Microcontrollers
Analysis Control Evaluation (ACE) Software
Audio
Clock and Timing
Condition-Based Monitoring
Data Converters
Design Tools and Calculators
Direct Digital Synthesis (DDS)
Energy Monitoring and Metering
FPGA Reference Designs
Industrial Ethernet
Interface and Isolation
Low Power RF Transceivers
MEMS Inertial Sensors
Motor Control Hardware Platforms
Optical Sensing
Power Management
Precision Technology Signal Chains
Processors and DSP
Reference Designs
RF and Microwave
Signal Chain Power (SCP)
Switches/Multiplexers
Temperature Sensors
Video
Wide Band RF Transceivers
Wireless Sensor Networks Reference Library
About EZ
More
Cancel
主页
浏览 ⌵
收件箱
个人设置
会员
专区列表
论坛专区 ⌵
放大器专区
精密转换器专区
音频专区
ADE电能计量专区
MEMS专区
生物/电化学/磁场/温度传感器专区
接口和隔离专区
Power 中文专区
ADUC微处理器专区
锁相环专区
开关和多路复用器专区
温度传感器
基准电压源专区
资源库
论坛使用指南
技术支持参考库
在线研讨会
论坛社群活动
论坛激励活动
More
Cancel
Important:
For full functionality of this site it is necessary to enable JavaScript. Here are the
instructions how to enable JavaScript in your web browser
.
中文社区
时钟与DDS
Documents
RTC用DS1390U-33,用SPI以多字节连续操作模式,以0.04ms为周期读一次RTC的时候偶然一个周期,以10ms的时间为单位,当向20ms之类的跳变时候会出现读取错误,再下一个周期就又读取正常了。请问如何解决?
问答
Members
More
Cancel
时钟与DDS requires membership for participation - click to join
In this Article
Created
over 8 years ago
Updated
5 months ago
Documents
DS1x
RTC用DS1390U-33,用SPI以多字节连续操作模式,以0.04ms为周期读一次RTC的时候偶然一个周期,以10ms的时间为单位,当向20ms之类的跳变时候会出现读取错误,再下一个周期就又读取正常了。请问如何解决?
当读取百分之一秒寄存器时,如果在读取时正好更新寄存器,则有可能会造成读取数据错误,解决的办法是:
1. 利用SQW波形来同步读取数据,在SQW波形的上升沿或者下降沿开始读取数据。
2.最简单的办法是连续读取两次,然后判断读取结果是否一致,如果读取结果一致,说明读取正确,否则,读取错误,然后在重新执行读取操作。
DS1390-3.3V UNTETED RAW DIE 8"
000094561
Before You Switch
Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.