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STM32_AD9954-master
说明： STM32控制AD9954产生正弦波等波形，频率幅值可调，各种调制。(STM32 controls AD9954 to generate sinusoidal wave, frequency amplitude adjustable, various modulation.)
- 2020-06-20 19:00:02下载
- 积分：1
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Exercise-Code
MSP430单片机、CC2500主程序实现无线抄表功能。(MSP430 microcontroller wireless meter reading, CC2500 main program.)
- 2013-05-06 18:35:38下载
- 积分：1
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【19】DMA PWM WS2812 GPIO输出16组
STM32作为主控芯片，72Mhz，利用DMA+PWM实现驱动WS2812，创建16个并行800kBit / s数据流的想法如下：
使用定时器每1.25us创建一个800kHz的时基和一个DMA请求。
使用2个比较模块在低位时间（350ns）和高位时间（700ns）下创建DMA请求
1.25us DMA请求将GPIO端口的所有位设置为高电平
350ns DMA请求将数据从帧缓冲区传输到GPIO端口。如果该位为0，GPIO引脚将变为低电平，否则将保持高电平。
700ns DMA请求将所有GPIO引脚设置为低电平。
重复步骤1到3，直到发送所有位。
这产生脉冲周期为1.25us，脉冲宽度为350ns或700ns的脉冲流，具体取决于脉冲表示的位值，通过DMA将数据传输到GPIO端口意味着每16个LED每位需要一个字（两个字节）。每个LED 24位，每16个LED 24个字（48个字节）。(The idea to create 16 parallel 800kBit/s data streams is the following:
Use a Timer to create an 800kHz time base and a DMA request every 1.25us.
Use 2 compare modules to create DMA requests at the low bit time (350ns) and the high bit time (700ns)
The 1.25us DMA request sets all bits of the GPIO port high
The 350ns DMA request transfers the data from the frame buffer to the GPIO port. If the bit is a 0, the GPIO pin will go low, otherwise it will stay high.
The 700ns DMA request sets all GPIO pins low.
Repeat steps 1 to 3 until all bits have been transmitted.
This creates a stream of pulses with a pulse period of 1.25us and a pulse width of either 350ns or 700ns depending on the bit value the pulse represents.
Transferring the data via DMA to the GPIO port means that per 16 LEDs one half word (two bytes) is needed per bit. At 24 bits per LED that makes 24 half words (48 bytes) per 16 LEDs.)
- 2020-12-15 10:49:13下载
- 积分：1
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Myfly_IMU6050_ZI_250_yaokong
本人做的四旋翼飞行器源码，这个是纯遥控版，可以实现稳定飞行，内含mpu6050,5883l，等传感器驱动，以及四元数姿态解算，和PID，以及遥控的解锁上锁等(I do four rotorcraft source, this is a pure version of the remote control, you can achieve a stable flight, containing mpu6050,5883l, and other sensor-driven, and quaternion attitude solution, and PID, and a remote unlock locked, etc.)
- 2016-03-02 09:05:54下载
- 积分：1
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Mini51B-sbq
51单片机的示波器，所有资料,dajiakuaixia(an Oscilloscope by mini51)
- 2014-05-12 08:47:29下载
- 积分：1
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json-c.tar
json编解码,json源文件，交叉变异后，或者直接编译后，用于jons解析和生成json格式数据。(json-c:Json codec,json source file, cross mutation, or directly compiled, jons for parsing and generating json format data.)
- 2019-04-24 14:26:39下载
- 积分：1
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VC6.0
说明： Ic卡 cpu 卡 发卡源程序
Ic卡 cpu 卡 发卡源程序(ic card cpucard ic card cpucard)
- 2010-04-23 13:07:28下载
- 积分：1
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12887test
说明： 12887的应用 at89c52
实现对时间的精确控制(Application 12887 to achieve precise control of time)
- 2009-08-19 17:05:42下载
- 积分：1
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DE0-PWM-Led-Drive---simulation
DE0_PWM_LED_DRİ VE_Sİ MULATİ ON
- 2015-12-04 16:32:56下载
- 积分：1
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one_wire_disp
一线显示,把电源跟数据线结合起来,减少了通讯连线.控制程序是C51的.(Line shows that the power supply combined with the data lines to reduce the communication connection. Control procedures are in C51.)
- 2009-02-12 20:28:07下载
- 积分：1
