引用付き投稿返答：初歩的な質問

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<hr/><div class="bbcode_quote"> <div class="bbcode_quote_head">[admin2 2010-06-14 12:06:59]:</div> <div class="bbcode_quote_body">CoronのCN-IOのPB10とPB11をI2Cとして使用する
基本的な初期化関数の例としては以下のようになります。
(※設定が非常に細かくできるので、下記例以外の他の設定にはどのようなものがあるのかを見るには、
lib/inc/stm3210x_i2c.hを見ると分かりやすいと思います。)
 
void Coron_I2Cini(void){ &nbsp; GPIO_InitTypeDef GPIO_InitStructure; &nbsp; &nbsp;&nbsp; /* System clocks configration ==============================================*/ &nbsp;&nbsp; /* Enable peripheral clocks ------------------------------------------------*/ &nbsp;&nbsp; /* GPIOB Periph clock enable */ &nbsp;&nbsp; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); &nbsp;&nbsp; /* I2C2 Periph clock enable */ &nbsp; &nbsp;RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE); &nbsp; &nbsp; &nbsp;// GPIO configraion ======================================================== &nbsp;&nbsp; /* Configure I2C2 pins: SCL and SDA ----------------------------------------*/ &nbsp;&nbsp;GPIO_InitStructure.GPIO_Pin =&nbsp; GPIO_Pin_10 | GPIO_Pin_11; &nbsp; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; &nbsp;&nbsp;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD; &nbsp;&nbsp;GPIO_Init(GPIOB, &amp;GPIO_InitStructure);
&nbsp;&nbsp; /* Disable I2C2 =============================================================*/ &nbsp;&nbsp; I2C_Cmd(I2C2, DISABLE); &nbsp; &nbsp; &nbsp;/* I2C2 configuration ======================================================*/ &nbsp;&nbsp; I2C_InitTypeDef&nbsp;I2C_InitStructure; &nbsp; &nbsp;I2C_StructInit(&amp;I2C_InitStructure); &nbsp; &nbsp;I2C_InitStructure.I2C_Mode = I2C_Mode_I2C; &nbsp;&nbsp; I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2; &nbsp;&nbsp; I2C_InitStructure.I2C_OwnAddress1 = 0; &nbsp;&nbsp; I2C_InitStructure.I2C_Ack = I2C_Ack_Enable; &nbsp;&nbsp; I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit; &nbsp; &nbsp;I2C_InitStructure.I2C_ClockSpeed = 400000;&nbsp; //400kHz &nbsp; &nbsp;I2C_Init(I2C2, &amp;I2C_InitStructure);&nbsp;
&nbsp;&nbsp; /* Enable I2C2 =============================================================*/ &nbsp;&nbsp; I2C_Cmd(I2C2, ENABLE); }
 
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引用付き投稿返答：初歩的な質問

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