int i2cdevInit(I2C_TypeDef *I2Cx)
{
if (I2Cx == I2C1)
{
i2cdevResetBusI2c1();
vSemaphoreCreateBinary(i2cdevDmaEventI2c1);
}
else if (I2Cx == I2C2)
{
i2cdevResetBusI2c2();
vSemaphoreCreateBinary(i2cdevDmaEventI2c2);
}
else
{
return false;
}
return true;
}
int i2cdevInit(I2C_TypeDef *I2Cx)
{
NVIC_InitTypeDef NVIC_InitStructure;
if (I2Cx == I2C1)
{
i2cdevResetBusI2c1();
// Enable the DMA1 channel6 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel6_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// Enable the DMA1 channel7 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel7_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// Enable the I2C error interrupt
NVIC_InitStructure.NVIC_IRQChannel = I2C1_ER_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DMA_ITConfig(DMA1_Channel6, DMA_IT_TC, ENABLE);
DMA_ITConfig(DMA1_Channel7, DMA_IT_TC, ENABLE);
vSemaphoreCreateBinary(i2cdevDmaEventI2c1);
}
else if (I2Cx == I2C2)
{
I2C_LowLevel_Init(I2Cx);
// Enable the DMA1 channel4 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// Enable the DMA1 channel5 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// Enable the I2C error interrupt
NVIC_InitStructure.NVIC_IRQChannel = I2C2_ER_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
DMA_ITConfig(DMA1_Channel4, DMA_IT_TC, ENABLE);
DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);
vSemaphoreCreateBinary(i2cdevDmaEventI2c2);
}
else
{
return FALSE;
}
return TRUE;
}