XRT API を使用したホスト アプリケーションの記述 - 2022.1 日本語

    auto device = xrt::device(device_index);
    auto uuid = device.load_xclbin(binaryFile);

    auto ip1 = xrt::ip(device, uuid, "Vadd_A_B:{Vadd_A_B_1}");
    // Allocate Buffer in Global Memory
    auto ip1_boA = xrt::bo(device, vector_size_bytes, 1);
    auto ip1_boB = xrt::bo(device, vector_size_bytes, 1);
    // Map the contents of the buffer object into host memory
    auto bo0_map = ip1_boA.map<int*>();
    auto bo1_map = ip1_boB.map<int*>();

    // Get the buffer physical address
    buf_addr[0] = ip1_boA.address();
    buf_addr[1] = ip1_boB.address();
    // Synchronize buffer content with device side
    ip1_boA.sync(XCL_BO_SYNC_BO_TO_DEVICE);
    ip1_boB.sync(XCL_BO_SYNC_BO_TO_DEVICE);

    // Setting Register A (Input Address)
    ip1.write_register(A_OFFSET, buf_addr[0]);
    ip1.write_register(A_OFFSET + 4, buf_addr[0] >> 32);

    //Setting Register B (Input Address)
    ip1.write_register(B_OFFSET, buf_addr[1]);
    ip1.write_register(B_OFFSET + 4, buf_addr[1] >> 32);

    // Start Kernel by writing to the Control Register
    uint32_t axi_ctrl = IP_START;
    ip1.write_register(USER_OFFSET, axi_ctrl);

    // Wait until the IP is done by reading from the Control Register
    while (axi_ctrl != IP_IDLE) {
        axi_ctrl = ip1.read_register(USER_OFFSET);
    }

    // Sync the output buffer back to the Host memory
    ip1_boB.sync(XCL_BO_SYNC_BO_FROM_DEVICE);