STM32f103rbt6的IIc1 的问题

Better-407785 提问时间：2016-5-20 16:58 /

各位路过的大侠好！
本人第一次使用硬件IIC，在使用的时候参考了很多例程，都无法实现。debug的时候程序总是停留在第一个检测位，有的时候会走到下一个位。
采用内部108Mhz，4分频27MHZ到 pclk1 .
本人已经闭门造车2天了，希望大侠帮我找找问题。程序如下：
#include "sys.h"
#include "usart.h"
#include "delay.h"
//#include "led.h"
//#include "beep.h"
//#include "key.h"
//#include "timer.h"
//#include "adc.h"
#include "output.h"
//#include "output.h"
//#include "ir.h"
//#include "hym8563.h"
//#include "stmflash.h"
//#include "TFT018.h"
//extern U8 bmp[];
//#include "stm32f10x_i2c.h"
#define DEVICE_IP 1
#define iic_address 0x0a
#define iic_address2 0x0b

/* I2C Events */
/* EV1 */
#define  I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED    ((u32)0x00060082) /* TRA, BUSY, TXE and ADDR flags */
#define  I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED       ((u32)0x00020002) /* BUSY and ADDR flags */
#define  I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED ((u32)0x00860080)  /* DUALF, TRA, BUSY and TXE flags */
#define  I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED ((u32)0x00820000)  /* DUALF and BUSY flags */
#define  I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED       ((u32)0x00120000)  /* GENCALL and BUSY flags */

/* EV2 */
#define  I2C_EVENT_SLAVE_BYTE_RECEIVED                   ((u32)0x00020040)  /* BUSY and RXNE flags */
#define  EV2 I2C_EVENT_SLAVE_BYTE_RECEIVED
/* EV3 */
#define  I2C_EVENT_SLAVE_BYTE_TRANSMITTED                ((u32)0x00060084)  /* TRA, BUSY, TXE and BTF flags */
#define  EV3 I2C_EVENT_SLAVE_BYTE_TRANSMITTED
/* EV4 */
#define  I2C_EVENT_SLAVE_STOP_DETECTED                   ((u32)0x00000010)  /* STOPF flag */
#define  EV4 I2C_EVENT_SLAVE_STOP_DETECTED
/* EV5 */
#define  I2C_EVENT_MASTER_MODE_SELECT                   ((u32)0x00030001)  /* BUSY, MSL and SB flag */
#define  EV5 I2C_EVENT_MASTER_MODE_SELECT
/* EV6 */
#define  I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED       ((u32)0x00070082)  /* BUSY, MSL, ADDR, TXE and TRA flags */
#define  I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED          ((u32)0x00030002)  /* BUSY, MSL and ADDR flags */

/* EV7 */
#define  I2C_EVENT_MASTER_BYTE_RECEIVED                   ((u32)0x00030040)  /* BUSY, MSL and RXNE flags */
#define  EV7 I2C_EVENT_MASTER_BYTE_RECEIVED
/* EV8 */
#define  I2C_EVENT_MASTER_BYTE_TRANSMITTED                ((u32)0x00070084)  /* TRA, BUSY, MSL, TXE and BTF flags */
#define  EV8_1 I2C_EVENT_MASTER_BYTE_TRANSMITTED
/* --EV8 */
#define I2C_EVENT_MASTER_BYTE_TRANSMITTING                ((u32)0x00070080) /* TRA, BUSY, MSL, TXE flags */

/* EV9 */
#define  I2C_EVENT_MASTER_MODE_ADDRESS10                ((u32)0x00030008)  /* BUSY, MSL and ADD10 flags */
#define  EV9 I2C_EVENT_MASTER_MODE_ADDRESS10
/* EV3_2 */
#define  I2C_EVENT_SLAVE_ACK_FAILURE                      ((u32)0x00000400)  /* AF flag */
#define  EV3_2 I2C_EVENT_SLAVE_ACK_FAILURE
ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, u32 I2C_EVENT)
{
  u32 lastevent = 0;
  u32 flag1 = 0, flag2 = 0;
  ErrorStatus status = ERROR;

  /* Check the parameters */
  assert_param(IS_I2C_ALL_PERIPH(I2Cx));
  assert_param(IS_I2C_EVENT(I2C_EVENT));

  /* Read the I2Cx status register */
  flag1 = I2Cx->SR1;
  flag2 = I2Cx->SR2;
  flag2 = flag2 << 16;

  /* Get the last event value from I2C status register */
  lastevent = (flag1 | flag2) & 0x0000ffff;

  /* Check whether the last event is equal to I2C_EVENT */
  if (lastevent == I2C_EVENT )
  {
/* SUCCESS: last event is equal to I2C_EVENT */
status = SUCCESS;
  }
  else
  {
/* ERROR: last event is different from I2C_EVENT */
status = ERROR;
  }

  /* Return status */
  return status;
}
void I2C_GenerateSTART(I2C_TypeDef* I2Cx, FunctionalState NewState)
{
  if (NewState != DISABLE)
  {
/* Generate a START condition */
I2Cx->CR1 |= 1<<8;
  }
  else
  {
/* Disable the START condition generation */
I2Cx->CR1 &= ~(1<<8);
  }
}
void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState)
{
  if (NewState != DISABLE)
  {
/* Generate a STOP condition */
I2Cx->CR1 |= 1<<9;
  }
  else
  {
/* Disable the STOP condition generation */
I2Cx->CR1 &= ~(1<<9);
  }
}
void I2C_SendData(I2C_TypeDef* I2Cx, u8 Data)
{
  /* Check the parameters */
  assert_param(IS_I2C_ALL_PERIPH(I2Cx));

  /* Write in the DR register the data to be sent */
  I2Cx->DR = Data;
}
u8 I2C_ReceiveData(I2C_TypeDef* I2Cx)
{
  /* Check the parameters */
  assert_param(IS_I2C_ALL_PERIPH(I2Cx));

  /* Return the data in the DR register */
  return (u8)I2Cx->DR;
}
//==========================================
int main(void)
{
u8 i;
u8 x;
u16 t;
u16 u16_flag,u16_flag1;
u8 dir=1;
Stm32_Clock_Init(9); //ÏµÍ³Ê±ÖÓÉèÖÃ9*12MÄÚ²¿HSI
delay_init(108);         //ÑÓÊ±³õÊ¼»¯36--108
/*LED_Init();            //³õÊ¼»¯ÓëLEDÁ¬½ÓµÄÓ²¼þ½Ó¿Ú
//BEEP_Init();          //³õÊ¼»¯·äÃùÆ÷¶Ë¿Ú

KEY_Init(); //³õÊ¼»¯ÊäÈë¶Ë¿Ú
Output_Init(); //³õÊ¼»¯Êä³ö¿ØÖÆ¶Ë¿Ú

HYM8563_init();
uart_init(108,115200);
uart3_init(27,115200);

TIM2_Int_Init(5400,0);
printf("U16_UP\r\n");
USART3->DR = 0x55;
RF_init();
Adc_Init();
*/
//uart2_init(27,9600);
//printf("U16_UP\r\n");
//³õÊ¼»¯i2C1  ;
RCC->APB2ENR|=1<<3; //Ê¹ÄÜPORTBÊ±ÖÓ
RCC->APB1ENR|=1<<21;
RCC->APB1RSTR|=1<<21; //ADC1¸´Î»
RCC->APB1RSTR&=~(1<<21);//¸´Î»½áÊø

AFIO->MAPR &= ~(1<<1);//I2C1Ã»ÓÐÖØÓ³Éä
//AFIO->MAPR |= ((u32)0x00000000);//0x03<<24;½ûÖ¹JTAG¹¦ÄÜ½Å£¬ÉèÖÃPB3PB4ÎªIO¿Ú

GPIOB->CRL&=0X00FFFFFF;
GPIOB->CRL|=0XFF000000; //
PBout(6)=1;
PBout(7)=1;
//=======================================
I2C1->CR1=0;
/* Enable the selected I2C peripheral */
I2C1->CR1 |= 1<<0;
I2C1->CR1 |= 1<<3;//´Ó
//=======================================
I2C1->CR2=0;
I2C1->CR2 |= 27<<0;
//=======================================
I2C1->OAR1=0x4000;
I2C1->OAR1 &=~(1<<15);//7bit address
I2C1->OAR1 |= (iic_address&0xfe);
I2C1->OAR2=0x0000;
I2C1->OAR2 |=(iic_address2&0xfe);
I2C1->OAR2 |= 1<<0;//ÆßÎ»µØÖ·Ë«µØÖ·Ä£Ê½£»
//=======cCCR================================
/* DisEnable the selected I2C peripheral */
I2C1->CR1 &= ~(1<<0);

I2C1->CCR =0;
I2C1->CCR &=~(1<<15);// f/s ¿ìËÙÄ£Ê½  ±ê×¼Ä£Ê½
I2C1->CCR &=~(1<<14);// DUTY ¿ìËÙÄ£Ê½ÏÂµÄÕ¼¿Õ±È L/H=2
//ÉèÖÃÖ÷Ä£Ê½ÊÇµÄ·¢ËÍÊ¼ÖÕËÙ¶È200khz
I2C1->CCR |= (27000/100) ;
//=======================================
I2C1->TRISE=(27+1);//ÉÏÉýÑØ
//=======================================
//I2C1->SR1=0;
//=======================================
//I2C1->SR2=0;
//=======================================
//I2C1->DR=0;
//=======================================
/* Enable the selected I2C peripheral */
I2C1->CR1 |= 1<<0;//Ê¹ÄÜ
//while((I2C1->SR2&(1<<1)));

while(1)
{
//=============================================================================
I2C1->CR1 |= 1<<8;//I2C_GenerateSTART(I2C1, 1);//¿ªÊ¼ÐÅºÅ
delay_us(100);
//EV5ÊÂ¼þ
while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_MODE_SELECT));
//========address================================
I2C1->DR=0xa2;
//==============================
//EV6 EV8_1£¨¸ÃÊÂ¼þÅÐ¶ÏÍ¬Ê±ÅÐ¶ÏÁËEV8_1ÊÂ¼þ£©
while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
//==============================================
I2C1->DR=0x55;
//EV8ÊÂ¼þ I2C_EVENT_MASTER_BYTE_TRANSMITTED
while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_BYTE_TRANSMITTING)) ;
//=========================================
I2C1->DR=0x02;
while(!I2C_CheckEvent(I2C1,I2C_EVENT_MASTER_BYTE_TRANSMITTED));
//I2C1->CR1 |= 1<<9;//I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState)
I2C_GenerateSTOP(I2C1,ENABLE);                               /*EV8_2ÊÂ¼þÖÐµÄ³ÌÐòÐ´Í£Ö¹*/

// printf(" I2C1->CR1:%x\r\n" ,I2C1->CR1);
delay_us(20000);

}



}