很奇怪，配置DMA1很正常。看datasheet也指明051有两路DMA。
在f0.h头文件找到的DMA2_Channel3，程序调用DMA_DeInit(DMA2_Channel3);就立马跳到HardFault_Handler
个人初步认为是寄存器地址的问题，不知道有没有碰到相同问题的，在.s里面好像也没找到DMA2的中断入口。
目前DMA1通道3在使用，求指导。附上代码
- void MYDMA2_Init(void)
- {
- DMA_InitTypeDef DMA_InitStructure;
- /* Enable the DMA peripheral */
- RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
- DMA_DeInit(DMA2_Channel3);
-
- // DMA1 channels initial
- /* DMA Configuration -------------------------------------------------------*/
- DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SPI1_DR_ADDRESS;
- DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&SendBuff[0];
- DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
- DMA_InitStructure.DMA_BufferSize = SEND_SIZE;
- DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
- DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
- DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
- DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
- DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
- DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
-
- DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;//优先级别为中级
- DMA_Init(SPI1_TX_DMA2_CHANNEL, &DMA_InitStructure);
-
- }
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