stm32f030 的i2c 读写eeprom数据
我按照如下配置，但是就是不能进入接收中断，求大神帮忙看看。谢谢了void I2C_Configuration(void)
{
GPIO_InitTypeDefGPIO_InitStruct;
I2C_InitTypeDefI2C_InitStruct;
NVIC_InitTypeDefNVIC_InitStructure;
/* Configure the I2C clock source. The clock is derived from the HSI */
RCC_I2CCLKConfig(RCC_I2C1CLK_SYSCLK);
/*Enable GPIOB and I2c1 clock*/
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1 , ENABLE);
/* Connect PXx to I2C_SCL*/
GPIO_PinAFConfig(GPIOB,GPIO_PinSource6,GPIO_AF_1);
/* Connect PXx to I2C_SDA*/
GPIO_PinAFConfig(GPIOB,GPIO_PinSource7,GPIO_AF_1);
/*GPIO Configuration*/
/*Configure I2C1 pins: SCL */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_OD;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB,&GPIO_InitStruct);
/*Configure sEE_I2C pins: SDA */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOB , &GPIO_InitStruct);
/* Enable the USART1 gloabal Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = I2C1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/*I2C configuration*/
I2C_InitStruct.I2C_Mode = I2C_Mode_I2C;
I2C_InitStruct.I2C_AnalogFilter = I2C_AnalogFilter_Enable;
I2C_InitStruct.I2C_DigitalFilter = 0x00;
I2C_InitStruct.I2C_OwnAddress1 =0x00;
I2C_InitStruct.I2C_Ack = I2C_Ack_Enable;
I2C_InitStruct.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStruct.I2C_Timing = 0x00210507;
I2C_Init(I2C1, &I2C_InitStruct);
I2C_ITConfig(I2C1,I2C_IT_RXI | I2C_IT_TXI | I2C_IT_TCI | I2C_IT_STOPI,ENABLE);
// I2C1->CR1|=0x7F<<1;//¿ªÆôÖжÏ
I2C_Cmd(I2C1, ENABLE);
}
void sI2CInterrupt(void)
{
if(I2C_GetITStatus(I2C1,I2C_ISR_TXIS) != RESET)
{
if(num++ < 1)
{
I2C_SendData(I2C1, 0x00);
}
else
{
I2C_SendData(I2C1, Data2);
num = 0;
}
}
else if(I2C_GetITStatus(I2C1,I2C_ISR_TCR) != RESET)
{
I2C_TransferHandling(I2C1,0xA8,1,I2C_AutoEnd_Mode,I2C_No_StartStop);
}
else if(I2C_GetITStatus(I2C1,I2C_IT_RXNE) != RESET)//Êý¾Ý½ÓÊÕÖжÏ
{
Data1 = I2C_ReceiveData(I2C1);
}
else if(I2C_GetITStatus(I2C1,I2C_ISR_TC) != RESET)
{
I2C_TransferHandling(I2C1,0xA8,1,I2C_AutoEnd_Mode,I2C_Generate_Start_Read);
}
else if(I2C_GetITStatus(I2C1,I2C_IT_STOPF) != RESET)
{
I2C_ClearITPendingBit(I2C1,I2C_IT_STOPF);
}
}
void sReadI2C(INT8U* lubData,INT16U luwI2CAddr,INT8U lubDataLen)
{
INT8U i;
INT8U lubDeviceAddr;
lubDeviceAddr = luwI2CAddr / 256;
lubDeviceAddr = (lubDeviceAddr & 0x03) << 1;
// µÈ´ý×ÜÏß¿ÕÏÐ
while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY));
I2C_TransferHandling(I2C1,EepromAddr | lubDeviceAddr,1,I2C_SoftEnd_Mode,I2C_Generate_Start_Write);
}
void I2C_uWriteData(INT8U *WriteBuf,INT8U lubWriteAddr,INT8U WriteLen,INT8U lubDeviceAddr)
{
INT8U i;
lubDeviceAddr = (lubDeviceAddr & 0x03) << 1;
// µÈ´ý×ÜÏß¿ÕÏÐ
while(I2C_GetFlagStatus(I2C1,I2C_FLAG_BUSY));
I2C_TransferHandling(I2C1,EepromAddr | lubDeviceAddr,1,I2C_Reload_Mode,I2C_Generate_Start_Write);
}
stm32的硬件有点复杂，我用模拟的比较多 用HAL库吧,中断方式适合DMA。也有非中断的阻塞调用方式。 wolfgang2015 发表于 2016-3-15 14:22
用HAL库吧,中断方式适合DMA。也有非中断的阻塞调用方式。
HAL的库你有吗？谢谢 alisa123 发表于 2016-3-15 14:31
HAL的库你有吗？谢谢
下载CubeMX，HAL库自来~~ wolfgang2015 发表于 2016-3-15 14:45
下载CubeMX，HAL库自来~~
找到了，就是下载下来不对，我再试试，谢谢你了 楼主1楼这个程序是通的吧？ 本帖最后由 alisa123 于 2016-4-7 13:34 编辑
feiyingha 发表于 2016-4-7 12:53
楼主1楼这个程序是通的吧？
我忘记了，下面这个链接是通的。 alisa123 发表于 2016-4-7 13:32
我忘记了，下面这个链接是通的。
https://www.stmcu.org.cn/module/forum/thread-604877-1-1.html,这个是通的，我在板子上跑过的。 alisa123 发表于 2016-4-7 13:35
https://www.stmcu.org.cn/module/forum/thread-604877-1-1.html,这个是通的，我在板子上跑过的。 ...
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