我想在以下配置中读取它:IN[7:0] 单极引用 GND,按顺序排序。单极点滤波器的全带宽。使用外部引用。内部基准、内部缓冲器和温度传感器禁用。 启用音序器 。 CFG 寄存器无回读
时间: 2024-05-31 14:09:25 浏览: 8
这是一个描述数字信号处理器(DSP)寄存器配置的语句。根据描述,配置如下:
- 8个输入通道(IN[7:0])
- 单极引用至GND
- 滤波器具有全带宽
- 使用外部参考电压
- 禁用内部基准、内部缓冲器和温度传感器
- 启用音序器
- CFG寄存器无回读
具体的配置寄存器地址和位域设置需要根据DSP芯片型号和数据手册来确定。
相关问题
我想要一个代码,通过具有以下设置的stm32f732控制器读取adc ad7699: IN[7:0] 单极性参考 GND,按顺序排序 单极点滤波器的全带宽 内部基准电压源/温度传感器禁用,缓冲器启用 启用序列器 无CFG寄存器回读
以下是使用STM32 HAL库的示例代码。在这个代码中,我们使用DMA和ADC的连续模式来读取AD7699,具体设置如下:
- 使用ADC1和DMA2
- ADC1的采样时间为3个ADC时钟周期
- 使用单极性参考GND
- 按顺序排序
- 使用单极点滤波器的全带宽
- 禁用内部基准电压源和温度传感器,启用缓冲器
- 启用序列器
- 禁用CFG寄存器回读
请注意,这里的代码仅给出了ADC的初始化和DMA设置,你需要根据你的具体应用程序进行修改。
```c
#include "stm32f7xx_hal.h"
/* ADC handle structure */
ADC_HandleTypeDef hadc1;
/* DMA handle structure */
DMA_HandleTypeDef hdma_adc1;
/* ADC data buffer */
uint16_t adc_data[8];
/* ADC initialization function */
void adc_init(void)
{
ADC_ChannelConfTypeDef sConfig;
/* Enable ADC clock */
__HAL_RCC_ADC1_CLK_ENABLE();
/* Configure ADC1 */
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = ENABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 8;
hadc1.Init.DMAContinuousRequests = ENABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
HAL_ADC_Init(&hadc1);
/* Configure ADC channel */
sConfig.Channel = ADC_CHANNEL_0;
sConfig.Rank = 1;
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
HAL_ADC_ConfigChannel(&hadc1, &sConfig);
/* Start ADC conversion */
HAL_ADC_Start_DMA(&hadc1, (uint32_t *)adc_data, 8);
}
/* DMA initialization function */
void dma_init(void)
{
/* Enable DMA clock */
__HAL_RCC_DMA2_CLK_ENABLE();
/* Configure DMA */
hdma_adc1.Instance = DMA2_Stream0;
hdma_adc1.Init.Channel = DMA_CHANNEL_0;
hdma_adc1.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_adc1.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_adc1.Init.MemInc = DMA_MINC_ENABLE;
hdma_adc1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
hdma_adc1.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
hdma_adc1.Init.Mode = DMA_CIRCULAR;
hdma_adc1.Init.Priority = DMA_PRIORITY_HIGH;
hdma_adc1.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_adc1);
/* Associate DMA handle with ADC */
__HAL_LINKDMA(&hadc1, DMA_Handle, hdma_adc1);
/* Start DMA transfer */
HAL_DMA_Start(&hdma_adc1, (uint32_t)&ADC1->DR, (uint32_t)adc_data, 8);
}
```
我想要一个代码,通过具有以下设置的stm32f732控制器读取 ad7699: IN[7:0] 单极性参考 GND,按顺序排序 单极点滤波器的全带宽 内部基准电压源/温度传感器禁用,缓冲器启用 启用序列器 无CFG寄存器回读
以下是一个示例代码,可以通过STM32F732控制器读取AD7699:
```c
#include "stm32f7xx.h"
#define ADC_CS_PIN GPIO_Pin_4
#define ADC_CS_PORT GPIOA
void SPI_init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7; // SCK and MOSI
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4; // CS
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(ADC_CS_PORT, &GPIO_InitStruct);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_SPI1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_SPI1);
SPI_InitTypeDef SPI_InitStruct;
SPI_InitStruct.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStruct.SPI_Mode = SPI_Mode_Master;
SPI_InitStruct.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStruct.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStruct.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStruct.SPI_NSS = SPI_NSS_Soft;
SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_InitStruct.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStruct.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStruct);
SPI_Cmd(SPI1, ENABLE);
}
void ADC_init(void)
{
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1; // SYNC
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_SetBits(GPIOB, GPIO_Pin_1);
// write to configuration register
GPIO_ResetBits(ADC_CS_PORT, ADC_CS_PIN);
uint16_t cmd = 0x0000;
cmd |= (1 << 15); // enable sequencer
cmd |= (1 << 14); // use internal reference
cmd |= (1 << 10); // disable temperature sensor
cmd |= (1 << 9); // enable buffer
cmd |= (1 << 8); // continuous conversion mode
SPI_I2S_SendData(SPI1, cmd);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
GPIO_SetBits(ADC_CS_PORT, ADC_CS_PIN);
// wait for configuration to take effect
delay_us(100);
}
uint16_t read_ADC(uint8_t channel)
{
GPIO_ResetBits(ADC_CS_PORT, ADC_CS_PIN);
uint16_t cmd = 0x8000;
cmd |= ((channel & 0x07) << 12); // select channel
SPI_I2S_SendData(SPI1, cmd);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
uint16_t data = SPI_I2S_ReceiveData(SPI1);
GPIO_SetBits(ADC_CS_PORT, ADC_CS_PIN);
return data;
}
```
这个代码使用了SPI接口进行通信,并且使用了GPIO控制AD7699的SYNC和CS信号。在初始化时,该代码将AD7699配置为启用序列器,使用内部基准电压源,禁用温度传感器,并启用缓冲器。然后,`read_ADC`函数将给定的通道号发送到AD7699,读取返回的数据并返回它。