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51/STM32控制AD9850
应用背景AD9850 采用32 位的相位累加器将信号截断成14 位输入到正弦查询表,查询表的输出再被截断成10 位后输入到DAC,DAC 再输出两个互补的电流。DAC 满量程输出电流通过一个外接电阻setR调节,调节关系为setI=32(1.148V/RSET),setR的典型值是3.9K。将DAC 的输出经低通滤波后接到AD9850 内部的高速
比较器上即可直接输出一个抖动很小的方波。关键技术本代码采用的是STM32和51控制AD9850波形发生器,正弦波产生过程为:频率设置,数据处理,然后控制DDS芯片完成各种频率的正弦波产生;调幅波产生过程为:通过调制系数的设置,控制D/A转换器输出,可得到不同幅值的调制波,与载波相乘来实现调幅波的产生;PSK、ASK产生:通过MCU对模拟开关的控制来完成PSK、ASK的产生。调频信号产生过程:通过A/D转换器采集调制信号,然后根据调制信号的幅度计算出频偏,把频偏数据下载到DDS即可实现调频信号的产生。
- 2022-01-24 17:37:10下载
- 积分:1
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这是一个用VB做的成绩管理系统.请大家看看给点意见,那里需要改进的地方....
这是一个用VB做的成绩管理系统.请大家看看给点意见,那里需要改进的地方.-A grade management system designed in VB.Please read the code to improve it.
- 2022-02-10 16:02:14下载
- 积分:1
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display user/system information
display user/system information
- 2023-02-15 04:10:03下载
- 积分:1
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门铃声和音量的扩展
Extended C codes for door bell with melody and volume
- 2022-03-02 03:11:34下载
- 积分:1
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Involved in 23 kinds of model C++ Implementation of the novice or the veteran ha...
23种涉及模式的C++实现,对新手或有相当能力的老手都有帮助-Involved in 23 kinds of model C++ Implementation of the novice or the veteran has a considerable capacity to help
- 2022-10-21 11:40:03下载
- 积分:1
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Delphi编程控制摄像头
Delphi编程控制摄像头-Delphi programming control camera
- 2022-12-26 02:35:03下载
- 积分:1
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vc6.0 assistant, vc procedures necessary tools, small and practical.
vc6.0助手,vc程序必备工具,小而实用。-vc6.0 assistant, vc procedures necessary tools, small and practical.
- 2022-06-03 16:50:28下载
- 积分:1
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This test_tonegen example application consists of both DSP and VM software to im...
This test_tonegen example application consists of both DSP and VM software to implement a tone generator using the Kalimba DSP. The tones are controlled by AT-commands sent by an off-chip host.
Note: No Bluetooth functionality is required or invoked in this example.
A terminal emulator application e.g. Windows HyperTerminal can be used to send AT commands and receive the responses from the VM application running on the BlueCore. -This test_tonegen example application consists of both DSP and VM software to implement a tone generator using the Kalimba DSP. The tones are controlled by AT-commands sent by an off-chip host.
Note: No Bluetooth functionality is required or invoked in this example.
A terminal emulator application e.g. Windows HyperTerminal can be used to send AT commands and receive the responses from the VM application running on the BlueCore.
- 2022-02-01 04:09:40下载
- 积分:1
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企业后台网站框架
企业后台网站框架,运行速度还是可以的
有需要的就下载吧
- 2023-06-02 02:55:04下载
- 积分:1
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Online vegetable market
如果社会上的人想买蔬菜
- 2023-04-17 07:00:04下载
- 积分:1