void ADC_Config(void)
{
CLK_PeripheralClockConfig(CLK_Peripheral_ADC1, ENABLE);
CLK_PeripheralClockConfig(CLK_Peripheral_DMA1, ENABLE);
ADC_Init(ADC1, ADC_ConversionMode_Continuous, ADC_Resolution_12Bit, ADC_Prescaler_2);
ADC_SamplingTimeConfig(ADC1, ADC_Group_SlowChannels, ADC_SamplingTime_384Cycles);
ADC_Cmd(ADC1, ENABLE);
ADC_ChannelCmd(ADC1, ADC_Channel_24, ENABLE); //设置ADC通道
SYSCFG_REMAPDMAChannelConfig(REMAP_DMA1Channel_ADC1ToChannel0);
DMA_Init(DMA1_Channel0,
BUFFER_ADDRESS,
ADC1_DR_ADDRESS,
BUFFER_SIZE,
DMA_DIR_PeripheralToMemory,
DMA_Mode_Circular,
DMA_MemoryIncMode_Inc,
DMA_Priority_High,
DMA_MemoryDataSize_HalfWord);
DMA_Cmd(DMA1_Channel0, ENABLE);
DMA_ITConfig(DMA1_Channel0, DMA_ITx_TC, ENABLE);
DMA_GlobalCmd(ENABLE);
}
/**
* @brief Configure DMA peripheral
* @param None
* @retval None
*/
static void DMA_Config(void)
{
/* Connect ADC1 to DMA1 channel 0 */
SYSCFG_REMAPDMAChannelConfig(REMAP_DMA1Channel_ADC1ToChannel0);
DMA_Init(DMA1_Channel0, BUFFER_ADDRESS, ADC1_DR_ADDRESS, BUFFER_SIZE, DMA_DIR_PeripheralToMemory,
DMA_Mode_Circular, DMA_MemoryIncMode_Inc, DMA_Priority_High, DMA_MemoryDataSize_HalfWord);
/* Connect DMA1 channel 2 to TIM1 */
DMA_Init(DMA1_Channel2, BUFFER_ADDRESS, TIM1_CCR1_ADDRESS, BUFFER_SIZE, DMA_DIR_MemoryToPeripheral,
DMA_Mode_Circular, DMA_MemoryIncMode_Inc, DMA_Priority_High, DMA_MemoryDataSize_HalfWord);
/* DMA1 Channel0 enable */
DMA_Cmd(DMA1_Channel0, ENABLE);
/* DMA1 Channel2 enable */
DMA_Cmd(DMA1_Channel2, ENABLE);
/* DMA1 enable */
DMA_GlobalCmd(ENABLE);
}
/**
* @brief Configure DMA peripheral
* @param None
* @retval None
*/
static void DMA_Config(void)
{
/* Connect ADC to DMA channel 0 */
SYSCFG_REMAPDMAChannelConfig(REMAP_DMA1Channel_ADC1ToChannel0);
DMA_Init(DMA1_Channel0, BUFFER_ADDRESS,
ADC1_DR_ADDRESS,
BUFFER_SIZE,
DMA_DIR_PeripheralToMemory,
DMA_Mode_Circular,
DMA_MemoryIncMode_Inc,
DMA_Priority_High,
DMA_MemoryDataSize_HalfWord);
/* DMA Channel0 enable */
DMA_Cmd(DMA1_Channel0, ENABLE);
/* Enable DMA1 channel0 Transfer complete interrupt */
DMA_ITConfig(DMA1_Channel0, DMA_ITx_TC, ENABLE);
/* DMA enable */
DMA_GlobalCmd(ENABLE);
}
