#include?“iic1.h“


void?I2C1_Init（void）
{
	?/***I2C端口定義***/
	GPIO_InitTypeDef??GPIO_InitStructure;//定義GPIO結構體
??I2C_InitTypeDef??I2C_InitStruct;?//I2C結構體初始化
	
	RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOB?|?RCC_APB2Periph_AFIO?ENABLE）;//打開GPIOB??打開串口
	RCC_APB1PeriphClockCmd（RCC_APB1Periph_I2C1ENABLE）;//I2C1的時鐘時能
	
	GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6|GPIO_Pin_7;//設置GPIO的管腳
	GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;//設置GPIO的管腳最大頻率
	GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_OD;//開漏輸出復用功能
	GPIO_Init（GPIOB&GPIO_InitStructure）;//GPIO設置初始?
	
	I2C_DeInit（I2C1）;//對I2C進行寄存器初始化
	I2C_InitStruct.I2C_Mode?=?I2C_Mode_I2C;?//設置I2C模式為I2C模式
	I2C_InitStruct.I2C_DutyCycle?=?I2C_DutyCycle_2;//I2C占空比?
	I2C_InitStruct.I2C_OwnAddress1?=0x30;//設置stm32自己的地址?
	I2C_InitStruct.I2C_Ack?=?I2C_Ack_Enable;//允許I2C應答?
	I2C_InitStruct.I2C_AcknowledgedAddress?=?I2C_AcknowledgedAddress_7bit;//應答7位地址?
	I2C_InitStruct.I2C_ClockSpeed?=?3200;//設置數據傳輸速度為HZ?
	I2C_Cmd（I2C1?ENABLE）;//允許I2C1?
	I2C_Init（I2C1?&I2C_InitStruct）;//I2C1初始化???
	I2C_AcknowledgeConfig（I2C1ENABLE）;//允許一字節一應答模式
}

void?I2C1_Write_Byte（u8?addressu8?data）
{

	while（I2C_GetFlagStatus（I2C1?I2C_FLAG_BUSY））;?//檢測總線是否忙?就是看?SCL?或SDA是否為?低?
	I2C_AcknowledgeConfig（I2C1ENABLE）;//允許接受應答
	I2C_GenerateSTART（I2C1ENABLE）;//發送start信號
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_MODE_SELECT））;//stm32設置為主模式完畢
	I2C_Send7bitAddress（I2C1pca_adrrI2C_Direction_Transmitter）;//發送I2C器件地址
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED））;//I2C地址發送完畢
	I2C_SendData（I2C1address）;//發送?命令地址
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_BYTE_TRANSMITTED））;//等待發送完畢
	I2C_SendData（I2C1data）;//發送?命令數據
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_BYTE_TRANSMITTED））;//等待發送完畢
	I2C_GenerateSTOP（I2C1ENABLE）;//發送stop信號
}

u8?I2C1_Read_Data（u8?read_addr）
{
?
	while（I2C_GetFlagStatus（I2C1?I2C_FLAG_BUSY））;?//檢測總線是否忙?就是看?SCL?或SDA是否為?低?
	I2C_AcknowledgeConfig（I2C1ENABLE）;//允許接受應答
	I2C_GenerateSTART（I2C1ENABLE）;//發送start信號
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_MODE_SELECT））;//stm32設置為主模式完畢
	I2C_Send7bitAddress（I2C1pca_adrrI2C_Direction_Transmitter）;//發送I2C器件地址
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED））;//I2C地址發送完畢
	I2C_SendData（I2C1read_addr）;//發送?命令地址

	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_BYTE_TRANSMITTED））;//等待發送完畢
	I2C_GenerateSTART（I2C1ENABLE）;//發送start信號
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_MODE_SELECT））;//stm32設置為主模式完畢
	I2C_Send7bitAddress（I2C1pca_adrr|0x01I2C_Direction_Receiver）;//發送I2C器件地址
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED））;//I2C地址發送完畢
	I2C_AcknowledgeConfig（I2C1DISABLE）;//關閉應答
	I2C_GenerateSTOP（I2C1ENABLE）;//產生停止位
	
	while（!I2C_CheckEvent（I2C1I2C_EVENT_MASTER_BYTE_RECEIVED））;//等待接受完成
	return?I2C_ReceiveData（I2C1）;//將讀到數據強制類型轉換后返回

}


//BCD轉DEC（BCD為8421碼）
u8?BCD2HEX（u8?val）
{
????u8?i;
????i=?val&0x0f;
????val?>>=?4;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Doc\
?????文件????????1646??2020-02-17?00:44??16路舵機驅動\Doc\readme.txt
?????目錄???????????0??2020-08-12?11:22??16路舵機驅動\HARDWARE\
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\HARDWARE\IIC1\
?????文件????????3498??2020-08-06?00:01??16路舵機驅動\HARDWARE\IIC1\IIC1.c
?????文件?????????437??2020-08-05?23:41??16路舵機驅動\HARDWARE\IIC1\IIC1.h
?????目錄???????????0??2020-08-19?20:50??16路舵機驅動\HARDWARE\PCA9685\
?????文件????????2621??2020-08-19?20:48??16路舵機驅動\HARDWARE\PCA9685\pca9685.c
?????文件?????????471??2020-08-19?20:50??16路舵機驅動\HARDWARE\PCA9685\pca9685.h
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Libraries\
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Libraries\CMSIS\
?????文件???????17273??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\core_cm3.c
?????文件???????85714??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\core_cm3.h
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Libraries\CMSIS\startup\
?????文件???????15766??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_cl.s
?????文件???????15503??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_hd.s
?????文件???????15692??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_hd_vl.s
?????文件???????12376??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_ld.s
?????文件???????13656??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_ld_vl.s
?????文件???????12765??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_md.s
?????文件???????14073??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_md_vl.s
?????文件???????15955??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\startup\startup_stm32f10x_xl.s
?????文件??????633941??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\stm32f10x.h
?????文件???????36557??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\system_stm32f10x.c
?????文件????????2085??2015-07-04?15:01??16路舵機驅動\Libraries\CMSIS\system_stm32f10x.h
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Libraries\STM32F10x_StdPeriph_Driver\
?????目錄???????????0??2020-08-08?15:57??16路舵機驅動\Libraries\STM32F10x_StdPeriph_Driver\inc\
?????文件????????8982??2015-07-04?15:01??16路舵機驅動\Libraries\STM32F10x_StdPeriph_Driver\inc\misc.h
?????文件???????21690??2015-07-04?15:01??16路舵機驅動\Libraries\STM32F10x_StdPeriph_Driver\inc\stm32f10x_adc.h
?????文件????????7555??2015-07-04?15:01??16路舵機驅動\Libraries\STM32F10x_StdPeriph_Driver\inc\stm32f10x_bkp.h
............此處省略251個文件信息