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  • 单片机内容

    1.在sys.h内有端口设置比如说,GPIOA口对应PAout(1),也可以直接调动其内部对于端口的设置:

    #define GPIOA_ODR_Addr    (GPIOA_BASE+12) //0x4001080C 
    #define GPIOB_ODR_Addr    (GPIOB_BASE+12) //0x40010C0C 
    #define GPIOC_ODR_Addr    (GPIOC_BASE+12) //0x4001100C 
    #define GPIOD_ODR_Addr    (GPIOD_BASE+12) //0x4001140C 
    #define GPIOE_ODR_Addr    (GPIOE_BASE+12) //0x4001180C 
    #define GPIOF_ODR_Addr    (GPIOF_BASE+12) //0x40011A0C    
    #define GPIOG_ODR_Addr    (GPIOG_BASE+12) //0x40011E0C    
    
    #define GPIOA_IDR_Addr    (GPIOA_BASE+8) //0x40010808 
    #define GPIOB_IDR_Addr    (GPIOB_BASE+8) //0x40010C08 
    #define GPIOC_IDR_Addr    (GPIOC_BASE+8) //0x40011008 
    #define GPIOD_IDR_Addr    (GPIOD_BASE+8) //0x40011408 
    #define GPIOE_IDR_Addr    (GPIOE_BASE+8) //0x40011808 
    #define GPIOF_IDR_Addr    (GPIOF_BASE+8) //0x40011A08 
    #define GPIOG_IDR_Addr    (GPIOG_BASE+8) //0x40011E08 
    
    #define BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2)) 
    #define MEM_ADDR(addr)  *((volatile unsigned long  *)(addr)) 
    #define BIT_ADDR(addr, bitnum)   MEM_ADDR(BITBAND(addr, bitnum)) 
    
    #define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  //Êä³ö 
    #define PAin(n)    BIT_ADDR(GPIOA_IDR_Addr,n)  //ÊäÈë 
    #define PCout(n)   BIT_ADDR(GPIOC_ODR_Addr,n)  //Êä³ö 
    #define PCin(n)    BIT_ADDR(GPIOC_IDR_Addr,n)  //ÊäÈë 
    #define PBout(n)   BIT_ADDR(GPIOB_ODR_Addr,n)  //Êä³ö 
    #define PBin(n)    BIT_ADDR(GPIOB_IDR_Addr,n)  //ÊäÈë #define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  
    

    2.将其放置在关于GPIO的点h里,然后在相关的芯片的.h文件内容里,加入类似:

    #define SCLOCK PAout(0)
    #define SDI PAout(1)
    #define SDO PAout(2)
    //#define CSB      GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_4)
    #define RESET PAout(3)
    //#define IORST    GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_4)	
    #define FUD PAout(7)
    #define PS0 PCout(2)
    #define PS1 PCout(1)
    #define PS2 PCout(0)
    void write1byte(uint8_t byte);
    void write5byte(uint8_t addr,uint8_t byte0,uint8_t byte1,uint8_t byte2,uint8_t byte3);
    void write6byte(uint8_t addr,uint8_t byte0,uint8_t byte1,uint8_t byte2,uint8_t byte3,uint8_t byte4);
    void write9byte(uint8_t addr,uint8_t byte0,uint8_t byte1,uint8_t byte2,uint8_t byte3,uint8_t byte4,uint8_t byte5,uint8_t byte6,uint8_t byte7);
    void writeSCBandFUD(void);
    

    .h文件除了端口设置外,还要添加相关的在.c文件内调用的函数如上;(例子在DDS-Test);

    3.STM32强制类型转换

    • *c;取内容符号;将地址c指向的数据获取出来;
    • &c;取地址符号;将c的值的地址取出来;
    • 如何将一个48bit的FTW十进制数据转为十六进制数据,可以选择强制类型转换;
      将FTW的地址取出来,在取出此地址的指针指向的数据,每隔8位取一次,一共取值六次;则将十进制数据转为十六进制
      write9byte(0x06,0x00,0x00,(((uint8_t *)(&FTW))[5]),(((uint8_t *)(&FTW))[4]),(((uint8_t *)(&FTW))[3]),(((uint8_t *)(&FTW))[2]),(((uint8_t *)(&FTW))[1]),(((uint8_t *)(&FTW))[0]));
      
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  • 原文地址:https://www.cnblogs.com/assassinn/p/9236152.html
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