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首页AVR单片机实战:C语言教程
AVR单片机实战:C语言教程
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更新于2024-07-29
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《实战AVR单片机C语言》是一本针对AVR单片机编程的实战教程,作者强调采用GCCAVR编写的C语言代码,并特别注重通过硬件调试进行实践。教程的核心在于培养读者的动手能力和理解实际工程应用的能力,而非局限于特定的学习板。教程选择分立元件作为实验工具,以提高灵活性和通用性,如10k和1K电阻、LED、按键、ATmega8单片机、电容、串口设备(MAX232CPE)、74HC595N移位寄存器、可调电位器、三极管、蜂鸣器、LED数码管、存储器(24C02和DS18B20)以及各种接口组件如液晶显示屏和DS1302时钟芯片。此外,书中还涉及了必备的硬件如电池盒、下载线和面包板,以及一张光盘,内含丰富的AVR相关资料。 作者鼓励读者在学习过程中自行搭建电路,这样不仅能够深入理解单片机的工作原理,还能增强解决实际问题的能力,因为作为电子工程师,他们最终会依赖于分立元件进行电路设计和调试。教程中的一些章节引用了数据手册的截图,原著权归原作者所有。对于想要深入理解芯片细节的读者,作者建议查阅芯片的官方资料。 整个教程的硬件配置合共包括18米的连接导线,以及用于编程的USB下载线。为了便于教学和实验,还配备了标准尺寸的面包板。通过这份详尽的清单,读者可以在实践中逐步掌握AVR单片机的C语言编程技能,为成为高薪电子工程师打下坚实基础,同时也能为个人项目或业余创新提供必要的元件支持。最后,教材提供了充足的实际操作经验和理论指导,适合希望在AVR领域深入探索的初学者和进阶者使用。
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*
* All other archs do have a stack pointer. Some devices have only
* less than 256 bytes of possible RAM locations (128 Bytes of SRAM
* and no option for external RAM), thus SPH is officially "reserved"
* for them. We catch this case below after including the
* device-specific ioXXXX.h file, by examining XRAMEND, and
* #undef-ining SP and SPH in that case.
*/
/* Stack Pointer */
#define SP _SFR_IO16(0x3D)
#define SPL _SFR_IO8(0x3D)
#define SPH _SFR_IO8(0x3E)
#endif /* #if __AVR_ARCH__ != 1 */
/* Status REGister */
#define SREG _SFR_IO8(0x3F)
/* Status Register - SREG */
#define SREG_I 7
#define SREG_T 6
#define SREG_H 5
#define SREG_S 4
#define SREG_V 3
#define SREG_N 2
#define SREG_Z 1
#define SREG_C 0
/* Pointer definition */
#if __AVR_ARCH__ != 1
/* avr1 has only the Z pointer */
#define XL r26
#define XH r27
#define YL r28
#define YH r29
#endif /* #if __AVR_ARCH__ != 1 */
#define ZL r30
#define ZH r31
/*
* Only few devices come without EEPROM. In order to assemble the
* EEPROM library components without defining a specific device, we
* keep the EEPROM-related definitions here.
*/
#if defined(__COMPILING_AVR_LIBC__)
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![](https://csdnimg.cn/release/download_crawler_static/4032153/bg11.jpg)
/* EEPROM Control Register */
#define EECR _SFR_IO8(0x1C)
/* EEPROM Data Register */
#define EEDR _SFR_IO8(0x1D)
/* EEPROM Address Register */
#define EEAR _SFR_IO16(0x1E)
#define EEARL _SFR_IO8(0x1E)
#define EEARH _SFR_IO8(0x1F)
/* EEPROM Control Register */
#define EERIE 3
#define EEMWE 2
#define EEWE 1
#define EERE 0
/* Extended indirect addressing of ATmega256x devices */
#if __AVR_ARCH__ == 6
# define EIND _SFR_IO8(0X3C)
#endif
#endif /* __COMPILING_AVR_LIBC__ */
#if defined (__AVR_AT94K__)
# include <avr/ioat94k.h>
#elif defined (__AVR_AT43USB320__)
# include <avr/io43u32x.h>
#elif defined (__AVR_AT43USB355__)
# include <avr/io43u35x.h>
#elif defined (__AVR_AT76C711__)
# include <avr/io76c711.h>
#elif defined (__AVR_AT86RF401__)
# include <avr/io86r401.h>
#elif defined (__AVR_AT90PWM1__)
# include <avr/io90pwm1.h>
#elif defined (__AVR_AT90PWM2__)
# include <avr/io90pwmx.h>
#elif defined (__AVR_AT90PWM3__)
# include <avr/io90pwmx.h>
#elif defined (__AVR_ATmega128__)
# include <avr/iom128.h>
#elif defined (__AVR_ATmega1280__)
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# include <avr/iom1280.h>
#elif defined (__AVR_ATmega1281__)
# include <avr/iom1281.h>
#elif defined (__AVR_ATmega2560__)
# include <avr/iom2560.h>
#elif defined (__AVR_ATmega2561__)
# include <avr/iom2561.h>
#elif defined (__AVR_AT90CAN32__)
# include <avr/iocan32.h>
#elif defined (__AVR_AT90CAN64__)
# include <avr/iocan64.h>
#elif defined (__AVR_AT90CAN128__)
# include <avr/iocan128.h>
#elif defined (__AVR_AT90USB82__)
# include <avr/iousb82.h>
#elif defined (__AVR_AT90USB162__)
# include <avr/iousb162.h>
#elif defined (__AVR_AT90USB646__)
# include <avr/iousb646.h>
#elif defined (__AVR_AT90USB647__)
# include <avr/iousb647.h>
#elif defined (__AVR_AT90USB1286__)
# include <avr/iousb1286.h>
#elif defined (__AVR_AT90USB1287__)
# include <avr/iousb1287.h>
#elif defined (__AVR_ATmega64__)
# include <avr/iom64.h>
#elif defined (__AVR_ATmega640__)
# include <avr/iom640.h>
#elif defined (__AVR_ATmega644__)
# include <avr/iom644.h>
#elif defined (__AVR_ATmega644P__)
# include <avr/iom644.h>
#elif defined (__AVR_ATmega645__)
# include <avr/iom645.h>
#elif defined (__AVR_ATmega6450__)
# include <avr/iom6450.h>
#elif defined (__AVR_ATmega649__)
# include <avr/iom649.h>
#elif defined (__AVR_ATmega6490__)
# include <avr/iom6490.h>
#elif defined (__AVR_ATmega103__)
# include <avr/iom103.h>
#elif defined (__AVR_ATmega32__)
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![](https://csdnimg.cn/release/download_crawler_static/4032153/bg13.jpg)
# include <avr/iom32.h>
#elif defined (__AVR_ATmega323__)
# include <avr/iom323.h>
#elif defined (__AVR_ATmega324P__)
# include <avr/iom324.h>
#elif defined (__AVR_ATmega325__)
# include <avr/iom325.h>
#elif defined (__AVR_ATmega325P__)
# include <avr/iom325.h>
#elif defined (__AVR_ATmega3250__)
# include <avr/iom3250.h>
#elif defined (__AVR_ATmega3250P__)
# include <avr/iom3250.h>
#elif defined (__AVR_ATmega329__)
# include <avr/iom329.h>
#elif defined (__AVR_ATmega329P__)
# include <avr/iom329.h>
#elif defined (__AVR_ATmega3290__)
# include <avr/iom3290.h>
#elif defined (__AVR_ATmega3290P__)
# include <avr/iom3290.h>
#elif defined (__AVR_ATmega406__)
# include <avr/iom406.h>
#elif defined (__AVR_ATmega16__)
# include <avr/iom16.h>
#elif defined (__AVR_ATmega161__)
# include <avr/iom161.h>
#elif defined (__AVR_ATmega162__)
# include <avr/iom162.h>
#elif defined (__AVR_ATmega163__)
# include <avr/iom163.h>
#elif defined (__AVR_ATmega164P__)
# include <avr/iom164.h>
#elif defined (__AVR_ATmega165__)
# include <avr/iom165.h>
#elif defined (__AVR_ATmega165P__)
# include <avr/iom165p.h>
#elif defined (__AVR_ATmega168__)
# include <avr/iom168.h>
#elif defined (__AVR_ATmega169__)
# include <avr/iom169.h>
#elif defined (__AVR_ATmega169P__)
# include <avr/iom169p.h>
#elif defined (__AVR_ATmega8HVA__)
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# include <avr/iom8hva.h>
#elif defined (__AVR_ATmega16HVA__)
# include <avr/iom16hva.h>
#elif defined (__AVR_ATmega8__)
# include <avr/iom8.h>
#elif defined (__AVR_ATmega48__)
# include <avr/iom48.h>
#elif defined (__AVR_ATmega88__)
# include <avr/iom88.h>
#elif defined (__AVR_ATmega8515__)
# include <avr/iom8515.h>
#elif defined (__AVR_ATmega8535__)
# include <avr/iom8535.h>
#elif defined (__AVR_AT90S8535__)
# include <avr/io8535.h>
#elif defined (__AVR_AT90C8534__)
# include <avr/io8534.h>
#elif defined (__AVR_AT90S8515__)
# include <avr/io8515.h>
#elif defined (__AVR_AT90S4434__)
# include <avr/io4434.h>
#elif defined (__AVR_AT90S4433__)
# include <avr/io4433.h>
#elif defined (__AVR_AT90S4414__)
# include <avr/io4414.h>
#elif defined (__AVR_ATtiny22__)
# include <avr/iotn22.h>
#elif defined (__AVR_ATtiny26__)
# include <avr/iotn26.h>
#elif defined (__AVR_AT90S2343__)
# include <avr/io2343.h>
#elif defined (__AVR_AT90S2333__)
# include <avr/io2333.h>
#elif defined (__AVR_AT90S2323__)
# include <avr/io2323.h>
#elif defined (__AVR_AT90S2313__)
# include <avr/io2313.h>
#elif defined (__AVR_ATtiny2313__)
# include <avr/iotn2313.h>
#elif defined (__AVR_ATtiny13__)
# include <avr/iotn13.h>
#elif defined (__AVR_ATtiny25__)
# include <avr/iotn25.h>
#elif defined (__AVR_ATtiny45__)
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