pwm.rar_ARMPWM_visualc_控制系统_裸机PWM实现资源-CSDN下载

共69个文件

h：26个

c：24个

o：7个

版权申诉

visual_c

控制系统

35 浏览量 2022-09-14 20:07:56 上传评论收藏 2.65MB RAR 举报

PWM，即脉宽调制（Pulse Width Modulation），是一种常用的技术，用于通过改变信号的占空比来调节输出电压或电流。在嵌入式系统，尤其是基于ARM微处理器的系统中，PWM常用于电机控制、电源管理、LED亮度调节等应用场景。在“pwm.rar_ARMPWM_visual c_控制系统”这个压缩包中，我们可以推测它包含的是关于如何使用Visual C++编程环境在ARM平台上实现PWM控制的资源。我们要理解ARM处理器。ARM是Advanced RISC Machines的缩写，是一种广泛使用的微处理器架构，以其低功耗和高性能而著名，常用于移动设备、嵌入式系统以及工业控制等领域。在这个项目中，我们不依赖任何操作系统（裸机编程），这意味着所有的硬件操作都需要通过底层驱动程序直接完成。 PWM的生成通常涉及到以下步骤： 1. **配置PWM模块**：这包括选择合适的PWM通道、设置预分频器和计数器值以确定PWM周期和占空比，以及启用PWM输出。在ARM处理器上，这通常通过修改相关的寄存器来实现。 2. **编程计数器**：计数器会从零开始递增，当达到预设值时重置，这个过程决定了PWM周期。占空比由高电平持续时间与整个周期的比例决定。 3. **调整占空比**：根据需要调整PWM信号的高电平时间，可以动态改变输出电压或电流的平均值。 4. **中断处理**：在某些应用中，可能需要在PWM周期的特定时刻执行某些操作，这就需要用到中断服务程序。例如，在电机控制中，可能会在每个PWM周期的边界切换电机相位。 5. **安全考虑**：在裸机编程中，必须特别注意防止硬件冲突和系统崩溃。例如，确保在修改PWM配置时不会干扰到其他关键任务。 6. **Visual C++编程**：虽然ARM处理器通常与C或C++编程语言配合使用，Visual C++是一个Windows平台下的开发工具，可能这里是指开发者使用了Visual C++的交叉编译功能，将代码编译为适用于ARM处理器的二进制文件。 7. **控制系统设计**：在没有操作系统的情况下，控制系统设计需要考虑到实时性、任务调度和错误处理。开发者可能需要手动编写任务调度器和异常处理机制，以确保系统的稳定运行。压缩包中的"PWM"文件可能包含源代码、配置文件、数据表或文档，详细解释了如何在ARM平台上用Visual C++实现上述过程。学习这些资料，不仅可以了解ARM处理器的硬件接口，还能掌握在无操作系统环境下编写高效、可靠的控制代码的技能。

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收起资源包目录

pwm.rar （69个子文件）

pwm

pwm_Data

Release

TargetDataWindows.tdt 48KB

CWSettingsWindows.stg 3KB

Debug

TargetDataWindows.tdt 50KB

DebugRel

ObjectCode

mmu.o 35KB

2440lib.o 63KB

2440slib.o 3KB

Main.o 50KB

nand.o 38KB

timer1.o 26KB

2440init.o 8KB

pwm.bin 23KB

TargetDataWindows.tdt 92KB

pwm.axf 77KB

inc

2440lib.h 2KB

2440addr.inc 4KB

memtest.h 229B

keyscan.h 113B

mmu.h 1KB

Option.inc 3KB

camdef.h 4KB

2440addr.h 40KB

IIC.h 775B

camif.h 1KB

Option.h 1KB

norflash.h 154B

MAIN.h 474B

Nand.h 3KB

camdata.h 12KB

AudioDrv.h 7KB

2440usb.h 4KB

camproset.h 722B

2440slib.h 2KB

SD_MMC.h 2KB

bootpara.h 2KB

Wav_source.h 1.41MB

Memcfg.inc 3KB

LCD_TFT.h 7KB

profile.h 364B

dma.h 2KB

def.h 2KB

Test_OV9650.h 2KB

timer1.h 79B

src

RTC.c 1KB

TQ_LOGO.c 23.98MB

keyscan.c 3KB

IIC.c 12KB

Pic.c 3.15MB

Adc.c 2KB

memtest.c 1KB

Test_OV9650.c 10KB

UDA1341.c 5KB

2440init.s 15KB

mmu.c 4KB

Main.c 8KB

LCD_TFT.c 13KB

IrDA.c 6KB

profile.c 2KB

dma.c 6KB

camif.c 19KB

2440slib.s 7KB

AudioDrv.c 20KB

nand.c 2KB

Touchpanel.c 2KB

SD_MMC.c 23KB

eeprom.c 4KB

2440lib.c 24KB

camproset.c 10KB

timer1.c 289B

pwm.mcp 190KB

#include "LCD_TFT.h" #define WIN32 #if(LCD_Type == LCDW43) // 3.5당팁 unsigned char TQ_LOGO_1[] = { /* scan line 1 */ #ifdef WIN32 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x08,0x41,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82, 0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82, 0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82,0x10,0x82, 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