zynq-7000学习笔记(七)——在zedboard上验证hls FAST corner

PC平台：WINDOWS 10 64位

Xilinx设计开发套件：Xilinx_vivado_sdk_2015.4

开发板：Zed Board

1、打开学习笔记四构建的vivado项目，打开block design，把学习笔记六导出的FAST corner IP添加进来

2、add ip，把hls_fast_corner添加到block design，再添加一个VDMA连接起来

3、导出Hardware，启动SDK

4、初始化hls_fast_corner

int status = XHls_fast_corner_Initialize(&fast_corner, XPAR_HLS_FAST_CORNER_DEVICE_ID);
	if(0 != status)
	{
		printf("XHls_fast_corner_Initialize failed");
	}

	XHls_fast_corner_SetRows(&fast_corner, 1024);
	XHls_fast_corner_SetCols(&fast_corner, 1280);
	XHls_fast_corner_SetThrehold(&fast_corner, 100);
	XHls_fast_corner_DisableAutoRestart(&fast_corner);
	XHls_fast_corner_InterruptGlobalDisable(&fast_corner);
	init_hls_fast_corner_dma(1280, 1024, VIDEO_BASEADDR, HLS_VDMA_MM2S_ADDR);
	DDRVideoWr(HLS_VDMA_MM2S_ADDR, 1280, 1024);
	XHls_fast_corner_Start(&fast_corner);

VDMA的初始化如下

void init_hls_fast_corner_dma(unsigned int width, unsigned int height,
			unsigned int s2mm_addr, unsigned int mm2s_addr)
{

    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0x30, 0x4); //reset   S2MM VDMA Control Register
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0x30, 0x8); //genlock
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xAC,   s2mm_addr);//S2MM Start Addresses
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xAC+4, s2mm_addr);
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xAC+8, s2mm_addr);
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xA4, width*4);//S2MM Horizontal Size
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xA8, width*4);//S2MM Frame Delay and Stride
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0x30, 0x3);//S2MM VDMA Control Register
    Xil_Out32(XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + 0xA0, height);//S2MM Vertical Size  start an S2M
    Xil_DCacheFlush();

    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_DMA_CTRL),0x00000003); // enable circular mode
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_START_1),mm2s_addr); // start address
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_START_2),mm2s_addr); // start address
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_START_3),mm2s_addr); // start address
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_FRMDLY_STRIDE),(width*4)); // h offset
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_H_SIZE),(width*4)); // h size
    Xil_Out32((XPAR_AXI_FAST_CORNER_VDMA_BASEADDR + AXI_VDMA_REG_V_SIZE),height); // v size
    Xil_DCacheFlush();

}

5、为了能在显示器上看到动态的效果，在main函数的while循环动态设置fast corner的threshold

		if(XHls_fast_corner_IsDone(&fast_corner))
		{
			//memcpy(VIDEO_BASEADDR, HLS_VDMA_S2MM_ADDR, 1280*1024*4);
			threhold--;
			if(threhold == 0)
				threhold = 300;
			XHls_fast_corner_SetThrehold(&fast_corner, threhold);
			XHls_fast_corner_Start(&fast_corner);
		}

6、测试效果

同理，sobel的测试步骤也一样，效果如下

代码