记得以前用过的时候也有发热的现象，原因是没用的IO设置成了输出，所以跑UBOOT时最好先把所有没用的IO...
Xil_DCacheFlushRange((INTPTR)UartRxBuf, UartRxLen);//flush data into ddr usleep(2); // transfer data from axi dma to device XAxiDma_SimpleTransfer(&DmaInst, (UINTPTR)UartRxBuf, UartRxLen, XAXIDMA_DMA_TO_DEVICE); while(!TxDone); TxDone=0;//reset txdone flag; complete txtransfer...
* If error interrupt is asserted, raise error flag, reset the * hardware to recover from the error, and return with no further * processing. */ if ((IrqStatus & XAXIDMA_IRQ_ERROR_MASK)) { xil_printf("rx error! \r\n"); return; } /* * If completion interrupt is asserted, then ...
然后就是PCIe DMA的工作方式可以通过加载驱动传输参数进行修改。默认情况下DMA工作在中断模式,可以通过修改load_driver.sh脚本改为轮循模式如下图所示,但是可能驱动有问题,实际测试轮询模式有些程序无法正常执行,所以建议大家 第六章 编译红旭等ESP32源码 下载串口测试代码到电脑 从红旭的github上下载hx-uart测试代码...
CSU DMA Loopback Mode PL Configuration PCAP Isolation Wall Control CSU BootROM Error Codes PL Bitstream Register Overview Configuration Programming Model Load the PL Bitstream Initialize PCAP Interface Write a Bitstream Through the PCAP Wait for the PL Done Status Programming the CSU...
ZYNQ DMA Linux驱动实验 简介 在PL中调用AXI-DMA向PS的内存中写入数据,数据源为自己造的一个递增数,在PS中可通过驱动控制DMA的传输。 搭建Vivado工程 主要调用了自定义的数据发生器模块、FIFO转AXI-Stream模块、AXI-DMA模块和ZYNQ PS模块,数据流向
k = *(rx_buffer + i); xil_printf("The DMA read from address = %2d, the read value = %8x---\n\r",i,k); xil_printf("The DMA read from address = %2d, the MSB read value = %8d---\n\r",i,k >> 16); xil_printf("The DMA read from address = %2d, the LSB read...
* simple DMA,Added interrupt support for Zynq. * 4.00a srt 08/04/11 Changed a typo in the RxIntrHandler, changed * XAXIDMA_DMA_TO_DEVICE to XAXIDMA_DEVICE_TO_DMA * 5.00a srt 03/06/12 Added Flushing and Invalidation of Caches to fix CRs ...
(&AxiDma, XAXIDMA_DMA_TO_DEVICE) || XAxiDma_Busy(&AxiDma, XAXIDMA_DEVICE_TO_DMA)); // 检查接收缓冲区数据是否正确 for (i = 0; i < MAX_PKT_LEN; i++) { if (RxBufferPtr[i] != (u8)(i & 0xFF)) { xil_printf("Data Transmission Error\r "); return XST...
("Data error %d: %x/%x\r\n",Index, RxPacket[Index], Value);return XST_FAILURE;}Value = (Value + 1) & 0xFF;}return XST_SUCCESS;}/***//*** This is the DMA TX Interrupt handler function.** It gets the interrupt status from the hardware, acknowledges it, and if any* error...