问答

spi2配置没问题，可以正常使用，但是加上dma，发现dma没有开启，有没有大佬告诉我一下，我下面的代码配置哪里有问题，找了好久找不出来，谢谢谢谢！！！uint8_tspi2_tx_buf[6]={0};uint8_tspi2_rx_buf[6]={0};voidDMA0_CH0_Config()//spi——RX{dma_single_data_parameter_structdma_init_spi2_rx;rcu_periph_clock_enable(RCU_DMA0);dma_deinit(DMA0,DMA_CH0);dma_init_spi2_rx.direction=DMA_PERIPH_TO_MEMORY;dma_init_spi2_rx.memory0_addr=(uint32_t)(spi2_rx_buf);//存储器地址dma_init_spi2_rx.memory_inc=DMA_MEMORY_INCREASE_ENABLE;dma_init_spi2_rx.periph_addr=(uint32_t)&SPI_DATA(SPI2);dma_init_spi2_rx.periph_inc=DMA_PERIPH_INCREASE_DISABLE;dma_init_spi2_rx.periph_memory_width=DMA_PERIPH_WIDTH_8BIT;dma_init_spi2_rx.number=sizeof(spi2_rx_buf);dma_init_spi2_rx.priority=DMA_PRIORITY_ULTRA_HIGH;dma_init_spi2_rx.circular_mode=DMA_CIRCULAR_MODE_DISABLE;dma_single_data_mode_init(DMA0,DMA_CH0,&dma_init_spi2_rx);dma_channel_subperipheral_select(DMA0,DMA_CH0,DMA_SUBPERI4);dma_memory_address_config(DMA0,DMA_CH0,DMA_MEMORY_0,(uint32_t)(spi2_rx_buf));//存储器地址dma_transfer_number_config(DMA0,DMA_CH0,sizeof(spi2_rx_buf));dma_channel_enable(DMA0,DMA_CH0);spi_dma_enable(SPI2,SPI_DMA_RECEIVE);}

voidrcu_config(void){/*enableGPIOclock*/rcu_periph_clock_enable(RCU_GPIOB);rcu_periph_clock_enable(RCU_GPIOE);/*enableADC0clock*/rcu_periph_clock_enable(RCU_ADC0);/*enableDMA0clock*/rcu_periph_clock_enable(RCU_DMA0);}/*!\briefconfiguretheGPIOperipheral\paramnone\param[out]none\retvalnone*/voidgpio_config(void){/*configtheGPIOasanalogmode*/gpio_mode_set(GPIOB,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_1);//GPIOB1,gpio_mode_set(GPIOE,GPIO_MODE_ANALOG,GPIO_PUPD_NONE,GPIO_PIN_13);}/*!\briefconfiguretheDMAperipheral\paramnone\param[out]none\retvalnone*/voiddma_config(void){/*ADC_DMA_channelconfiguration*/dma_parameter_structdma_data_parameter;/*ADCDMA_channelconfiguration*/dma_deinit(DMA0,DMA_CH0);/*initializeDMAsingledatamode*/dma_data_parameter.periph_addr=(uint32_t)(&ADC_RDATA(ADC0));//外设基地址dma_data_parameter.periph_inc=DMA_PERIPH_INCREASE_DISABLE;//内存地址增量模式dma_data_parameter.memory_addr=(uint32_t)adc_value;//数据存放地址dma_data_parameter.memory_inc=DMA_MEMORY_INCREASE_ENABLE;//内存地址增量模式dma_data_parameter.periph_width=DMA_PERIPHERAL_WIDTH_16BIT;//dma外设宽度16位，半字dma_data_parameter.memory_width=DMA_MEMORY_WIDTH_16BIT;dma_data_parameter.direction=DMA_PERIPHERAL_TO_MEMORY;//传输模式，外设到存储（接收）dma_data_parameter.number=2;//长度dma_data_parameter.priority=DMA_PRIORITY_HIGH;//优先级高dma_init(DMA0,DMA_CH0,&dma_data_parameter);dma_circulation_enable(DMA0,DMA_CH0);/*enableDMAchannel*/dma_channel_enable(DMA0,DMA_CH0);}/*!\briefconfiguretheADCperipheral\paramnone\param[out]none\retvalnone*/voidadc_config(void){/*configADCclock*/rcu_adc_clock_config(RCU_

LKS081开发板上电以后，ST-link检测不到芯片，并且FlashDownload中的ResetandRun勾选上以后，关闭选项卡再打开又回到原先没有勾选的状态，请问这是咋回事啊

j-link无法读取到芯片，显示"CannotconnecttoJ-Link."，HKConfig连不上芯片但是电脑的设备管理器可以显示到已连接的端口重新安装驱动已尝试，更换电脑已尝试，数据线在其他人的板子上可以用还有没有其他的解决方式

ICE烧录器，6线连接，目标板已供电，出现如下问题，求大神帮

本帖最后由liufreedom2008于2022-8-2409:31编辑请问GD32F450ADC在不采样模式下会跳动几个LSB.输入信号：

请问哪里可以购买CW32的量产工具CW-Writer，价钱是多少？

本帖最后由hailang19881003于2021-3-2415:24编辑开发板收到后，使用MDK开发，显示大家有遇到的吗？ErrorinstantiatingRTEcomponentsError#540:'AutoChips.AC781xDevelopmentKit::BoardSupport:AC781xDevelopmentKit:DebugInterface:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips.AC781xDevelopmentKit::BoardSupport:AC781xDevelopmentKit:OLED:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips::Device:ATCDrivers:DMA:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips::Device:ATCDrivers:GPIO:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips::Device:ATCDrivers:I2C:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips::Device:ATCDrivers:UART:1.0.0'componentisnotavailablefortarget'GPIODEMO'Error#540:'AutoChips::Device:Startup:1.0.0'componentisnotavailablefortarget'GPIODEMO'