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標題: 不欺人，復制就能用 stm8 stvd驅動a4988驅動 [打印本頁]

作者: chinarally@ 時間: 2020-5-9 01:08
標題: 不欺人，復制就能用 stm8 stvd驅動a4988驅動
/* MAIN.C file
*
* Copyright (c) 2002-2005 STMicroelectronics
*/
#include <stm8s105k4.h>  //驅動A4988
#define u8    unsigned char
#define u16 unsigned short
#define u32 unsigned long
#define v8    unsigned int

void delay_ms(v8 ms);
void delay_us(u8 t);
u8 key_scan(void);
void GPIO_Init(void);
void TIM1_Init(void);

u8 num;
int DIR;
main()
{
      CLK_SWCR =0x02;
      CLK_SWR =0xb4;
      GPIO_Init();
      TIM1_Init();
      _asm("rim");
      delay_ms(20);



      while (1)
      {
            u8 i;
            i=key_scan();
      if(i==1)
            {
                     PD_ODR|=0x08;
            }
            else
            {
                     i==0;
                     PD_ODR&=0xf7;
            }
      }

}

void delay_ms(v8 ms)
{
      v8 x,y;
      for(x=ms;x>0;x--)
      {
            for(y=300;y>0;y--)
         {

         }
  }
}

void delay_us(u8 t)
{
      u8 m = t;
      while(m--);
}

void GPIO_Init()
{
      PD_DDR |=0x04; //PD2 為輸出引腳 1 STEP
      PD_CR1 |=0x04; //PD2 為推挽輸出 1
      PD_CR2 |=0x04; //PD2 為10MHZ速率1
  PD_ODR &=0xfb; //PD2 為step輸出 0


      PD_DDR |=0x08;  //PD3 為輸出引腳 1 DIR
      PD_CR1 |=0x08;  //PD3 為推挽輸出 1
      PD_CR2 &=0xf7;  //PD3 為2MHZ速率 0


      PD_DDR &=0xcf;  //PD4,5 為輸入引腳       0
  PD_CR1 |=0x30;  //PD4,5 為若上拉輸入模式  1
  PD_CR2 &=0xcf;       //PD4,5 關外部中斷       0
}

void TIM1_Init(void)
{
      TIM1_CR1 =0x80;       // TIM1寄存器由預裝載寄存器緩沖

      TIM1_PSCRH =0x00;    //預分頻F(CK_CNT)=F(CK_PSC)/(PSCR[15:0]+1)
      TIM1_PSCRL =0x9f;       //159+1==160, 100khz

      TIM1_IER=0x01;    //中斷使能

      TIM1_ARRH =125/256;       //自動重裝載計數器125
      TIM1_ARRL=125%256;

      TIM1_CR1|=0x01;    //TIM1寄存器CEN位為1

}

u8 key_scan()
{
      u8 i;int c;
      i=PD_IDR;
      i&=0x30;
      if(i==0x20)
      {
                     delay_ms(10);
                     if(i ==0x20)
                     {
                     c==0;
               }
                     return 1;
      }

if(i ==0x10)
      {
               delay_ms(10);
               if(i ==0x10)
               {
               c==1; //正
         }
               return 0;
      }

}


@far @interrupt void TIM1_UPD_OVF_HandledInterrupt(void)//中斷
{
      PD_ODR^=0x04;
   TIM1_SR1&=0xfe;
                     }

/*       BASIC INTERRUPT VECTOR TABLE FOR STM8 devices
*       Copyright (c) 2007 STMicroelectronics
*/

typedef void @far (*interrupt_handler_t)(void);

struct interrupt_vector {
      unsigned char interrupt_instruction;
      interrupt_handler_t interrupt_handler;
};

@far @interrupt void NonHandledInterrupt (void)
{
      /* in order to detect unexpected events during development,
         it is recommended to set a breakpoint on the following instruction
      */
      return;
}

extern void _stext();    /* startup routine */

extern @far @interrupt void TIM1_UPD_OVF_HandledInterrupt(void);

struct interrupt_vector const _vectab[] = {
      {0x82, (interrupt_handler_t)_stext}, /* reset */
      {0x82, NonHandledInterrupt}, /* trap  */
      {0x82, NonHandledInterrupt}, /* irq0  */
      {0x82, NonHandledInterrupt}, /* irq1  */
      {0x82, NonHandledInterrupt}, /* irq2  */
      {0x82, NonHandledInterrupt}, /* irq3  */
      {0x82, NonHandledInterrupt}, /* irq4  */
      {0x82, NonHandledInterrupt}, /* irq5  */
      {0x82, NonHandledInterrupt}, /* irq6  */
      {0x82, NonHandledInterrupt}, /* irq7  */
      {0x82, NonHandledInterrupt}, /* irq8  */
      {0x82, NonHandledInterrupt}, /* irq9  */
      {0x82, NonHandledInterrupt}, /* irq10 */
      {0x82, TIM1_UPD_OVF_HandledInterrupt}, /* irq11 */
      {0x82, NonHandledInterrupt}, /* irq12 */
      {0x82, NonHandledInterrupt}, /* irq13 */
      {0x82, NonHandledInterrupt}, /* irq14 */
      {0x82, NonHandledInterrupt}, /* irq15 */
      {0x82, NonHandledInterrupt}, /* irq16 */
      {0x82, NonHandledInterrupt}, /* irq17 */
      {0x82, NonHandledInterrupt}, /* irq18 */
      {0x82, NonHandledInterrupt}, /* irq19 */
      {0x82, NonHandledInterrupt}, /* irq20 */
      {0x82, NonHandledInterrupt}, /* irq21 */
      {0x82, NonHandledInterrupt}, /* irq22 */
      {0x82, NonHandledInterrupt}, /* irq23 */
      {0x82, NonHandledInterrupt}, /* irq24 */
      {0x82, NonHandledInterrupt}, /* irq25 */
      {0x82, NonHandledInterrupt}, /* irq26 */
      {0x82, NonHandledInterrupt}, /* irq27 */
      {0x82, NonHandledInterrupt}, /* irq28 */
      {0x82, NonHandledInterrupt}, /* irq29 */
};

作者: chinarally@ 時間: 2020-5-9 01:13
謝謝管理員提醒，發帖只為與大家交流，不為積分。
大的化小，準備給小孩做個玩具。慢慢來。ad什么以后奉上。說明很詳細了。

歡迎光臨 (http://www.zg4o1577.cn/bbs/)

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