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]));
    

posted on 2018-06-27 21:51  Assassinn  阅读(277)  评论(0编辑  收藏  举报

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