使用HAL_DCMI_Start_DMA(&g_dcmi_handle, DCMI_MODE_CONTINUOUS, (uint32_t)p_jpeg_data_buf, 15*1024*4); 启动后,只有链表1、2生效,链表3无报错但是无效 /** * @brief DMA Linked-list DCMIQueue configuration * @param None * @retval None */ HAL_StatusTypeDef MX_DCMIQueue_Config(void) { HAL_StatusTypeDef ret = HAL_OK; /* DMA node configuration declaration */ DMA_NodeConfTypeDef pNodeConfig; /* Set node configuration */ pNodeConfig.NodeType = DMA_GPDMA_LINEAR_NODE;//DMA_GPDMA_2D_NODE;//GPDMA二维寻址 pNodeConfig.Init.Request = GPDMA1_REQUEST_DCMI; pNodeConfig.Init.BlkHWRequest = DMA_BREQ_SINGLE_BURST;//DMA传输硬件协议,单个传输或者块传输 pNodeConfig.Init.Direction = DMA_PERIPH_TO_MEMORY;//数据搬运方向,外设到内存 pNodeConfig.Init.SrcInc = DMA_SINC_FIXED;//外设地址非自增 pNodeConfig.Init.DestInc = DMA_DINC_INCREMENTED;//内存地址自增 pNodeConfig.Init.SrcDataWidth = DMA_SRC_DATAWIDTH_WORD;//32位 pNodeConfig.Init.DestDataWidth = DMA_DEST_DATAWIDTH_WORD; pNodeConfig.Init.SrcBurstLength = 1; pNodeConfig.Init.DestBurstLength = 1; pNodeConfig.Init.TransferAllocatedPort = DMA_SRC_ALLOCATED_PORT0|DMA_DEST_ALLOCATED_PORT0; pNodeConfig.Init.TransferEventMode = DMA_TCEM_EACH_LL_ITEM_TRANSFER;//DMA_TCEM_BLOCK_TRANSFER;//传输完成事件产生方式 pNodeConfig.RepeatBlockConfig.RepeatCount = 1;//通道重复次数 pNodeConfig.RepeatBlockConfig.SrcAddrOffset = 0; pNodeConfig.RepeatBlockConfig.DestAddrOffset = 0; pNodeConfig.RepeatBlockConfig.BlkSrcAddrOffset = 0; pNodeConfig.RepeatBlockConfig.BlkDestAddrOffset = 0; pNodeConfig.TriggerConfig.TriggerPolarity = DMA_TRIG_POLARITY_MASKED;//电平边沿,无 pNodeConfig.DataHandlingConfig.DataExchange = DMA_EXCHANGE_NONE;//不开启,字节序交换 pNodeConfig.DataHandlingConfig.DataAlignment = DMA_DATA_RIGHTALIGN_ZEROPADDED;//如果源的数据和目标内存数据宽度不一致,字节对齐的方式 pNodeConfig.SrcAddress = 0; pNodeConfig.DstAddress = 0; pNodeConfig.DataSize = 0; /* Build DCMINode1 Node */ ret |= HAL_DMAEx_List_BuildNode(&pNodeConfig, &DCMINode1); /* Insert DCMINode1 to Queue */ ret |= HAL_DMAEx_List_InsertNode_Tail(&DCMIQueue, &DCMINode1); // printf("DCMIQueue.State = %u \r\n", DCMIQueue.State); // printf("DCMIQueue.ErrorCode = %u \r\n", DCMIQueue.ErrorCode); // printf("DCMIQueue.NodeNumber = %u \r\n", DCMIQueue.NodeNumber); /******************************************************************/ pNodeConfig.SrcAddress = (uint32_t)p_jpeg_data_buf + 15*1024*4*1; pNodeConfig.DstAddress = (uint32_t)&g_dcmi_handle.Instance->DR; pNodeConfig.DataSize = 15*1024*4; /* Build DCMINode2 Node */ ret |= HAL_DMAEx_List_BuildNode(&pNodeConfig, &DCMINode2); /* Insert DCMINode2 to Queue */ ret |= HAL_DMAEx_List_InsertNode_Tail(&DCMIQueue, &DCMINode2); /******************************************************************/ pNodeConfig.SrcAddress = (uint32_t)p_jpeg_data_buf + 15*1024*4*2; pNodeConfig.DstAddress = (uint32_t)&g_dcmi_handle.Instance->DR; pNodeConfig.DataSize = 15*1024*4; /* Build DCMINode3 Node */ ret |= HAL_DMAEx_List_BuildNode(&pNodeConfig, &DCMINode3); /* Insert DCMINode3 to Queue */ ret |= HAL_DMAEx_List_InsertNode_Tail(&DCMIQueue, &DCMINode3); ret |= HAL_DMAEx_List_SetCircularModeConfig(&DCMIQueue, &DCMINode1);//GPDMA链表开启循环模式 //printf("ret2 = %d \r\n", ret);//返回值是0,hal_ok return ret; } |
STM32U5 OCTOSPI +fm25w256 Read and write
STM32L476VGT6 100P的可以直接用stm32u575vg 100P的替换到板子上吗?为啥烧录程序时无法连接?
AN5593这个有没有对应中文译版的资料
STM32U585 Flash ECC 错误的测试
STM32U5 偶尔出现无法进入shutdown模式
STM32U575 LPBAM如何实现不唤醒连续读取IIC数据?
STM32U5+LPBAM需设置RAM为SRAM4的地址,否则LPBAM无法运行?
用STM32Cubeprogrammer 烧录 TrustZone 的示范程序不成功
stm32u575vit6封装问题
STM32U545 DAC