可以看看是否用户代码哪里有问题,我这边使用STM32F4的开发板,选择SPI1自发自收是正常的。发送采用DMA方式,接收采用中断方式。 我添加的用户代码,供参考: LL_DMA_ConfigAddresses(DMAx, LL_DMA_STREAM, (uint32_t)&SPITXData0],(uint32_t) &(SPI1->DR),LL_DMA_DIRECTION_MEMORY_TO_PERIPH); LL_DMA_SetDat...
void DMA_START(DMA_TypeDef *DMAx, uint32_t Stream, uint32_t *SRC_ADDR, uint32_t *DES_ADDR...
LL_DMA_SetPeriphAddress(DMA1,LL_DMA_CHANNEL_1,LL_ADC_DMA_GetRegAddr(ADC1,LL_ADC_DMA_REG_REGULAR_DATA)); LL_DMA_SetMemoryAddress(DMA1,LL_DMA_CHANNEL_1,(uint32_t)adcBuf);//LL_DMA_ConfigAddresses(DMA1,LL_DMA_CHANNEL_1,(uint32_t)&(ADC1->DR),(uint32_t) &adcBuf,LL_DMA_DIRECT...
内容 SPI 是英语 Serial Peripheral interface 的缩写，顾名思义就是串行外围设备接口 ...
STM32Cube MCU Full Package for the STM32F1 series - (HAL + LL Drivers, CMSIS Core, CMSIS Device, MW libraries plus a set of Projects running on all boards provided by ST (Nucleo, Evaluation and Discovery Kits)) - STM32CubeF1/Projects/STM32F103R...
spi_dev->dev) , DMA_BIT_MASK(32))){ printk("dma_set_coherent_mask error . \n");...
#define SDMMC_ERROR_DMA 0x40000000U /*!< Error while DMA transfer */ #define SDMMC_ERROR_TIMEOUT 0x80000000U /*!< Timeout error */ /** * @brief SDMMC Commands Index */ #define SDMMC_CMD_GO_IDLE_STATE ((uint8_t)0) /*!< Resets the SD memory card. */ #define SDMMC_CMD_...
Configure the DMA interrupt priority using HAL_NVIC_SetPriority() b. Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() c. Use HAL_DMA_Start_IT() to start DMA transfer when the source and destination addresses and the length of data to be transferred have been confgured. In this case...
Linux使用struct usb_host_config结构体来描述USB配置,使用struct usb_device结构体来描述整个USB设备。 USB设备驱动程序需要把一个给定的struct usb_interface结构体的数据转换为struct usb_device结构体,用于转换功能的函数是interface_to_usbdev。 USB设备由许多不同的逻辑单元构成,逻辑单元之间的关系: ...