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thermal-management-system
电动汽车电池组热管理系统的研究进展,主要介绍了国内外关于电池组热管理系统的研究进展。(reseatch development on thermal management system of evs battery package)
- 2013-03-16 21:13:40下载
- 积分:1
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leddianzhen
说明: 本程序主要实现led点阵显示汉字的功能,并能使字体上下或者左右移动(This procedure led dot matrix display to achieve the main function of Chinese characters and fonts can move up and down or left and right)
- 2011-04-23 19:08:49下载
- 积分:1
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LCD12864_m16
基于单片机AVR-mega16的LCD12864(带字库)的驱动代码,可直接编译使用。(Driver code (with font) can be directly compiled based microcontroller AVR-mega16 of LCD12864.)
- 2016-07-16 17:08:54下载
- 积分:1
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Num4Disp_89c2051
本程序是自己制作的一种4位数码管模块的内部程序,该模块用于大屏上动态数据的显示,通过RS485接口为其传送待显示数据,芯片是89C2051(This program is a four to produce their own digital control module' s internal procedures, the module for large-screen display of dynamic data, transmitted through the RS485 interface for data to be displayed, the chip is 89C2051)
- 2011-08-31 12:35:52下载
- 积分:1
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mimasuo
说明: 单片机控制密码锁,四位密码,可更改密码。(cipher trunk using AT89C51)
- 2020-06-21 10:40:02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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AD9851驱动程序,采用串行写入方式STM32-AD9851-driver
AD9851驱动程序,采用串行写入方式,STM32写入频率控制字。(AD9851 driver, using serial write mode, STM32 write frequency control word.)
- 2020-07-07 18:38:57下载
- 积分:1
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3
说明: 利用0832以及8255等控制小直流电机的转速,实现高速,低速等转换(0832 and 8255, such as the use of a small DC motor speed control, high-speed, low-speed conversion, etc.)
- 2013-12-17 15:19:40下载
- 积分:1
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the-iButton-Book-of-Standards
ds18b20 iButton 用户使用手册(the iButton® Book of Standards (DS18B20))
- 2011-12-08 17:44:17下载
- 积分:1
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shujiwenduji
基于单片机的数字温度计,实现报警功能,显示负数温度(Microcontroller-based digital thermometer, alarm function, showing a negative temperature)
- 2012-04-14 00:31:23下载
- 积分:1