readPort
Reads output data and returns it with the port data type and dimension
Description
Examples
Read Data from DUT Port Mapped to AXI4 Slave Interfaces
This example shows how to read data from the DUT ports that are mapped to AXI4 slave interfaces.
Create an fpga
object with Xilinx
as
Vendor
.
hFPGA = fpga("Xilinx")
hFPGA = fpga with properties: Vendor: "Xilinx" Interfaces: [0x0 fpgaio.interface.InterfaceBase]
Add the AXI4 slave interface to the hFPGA
object by using the
addAXI4SlaveInterface
function.
%% AXI4 Slave addAXI4SlaveInterface(hFPGA, ... "InterfaceID", "AXI4-Lite", ... "BaseAddress", 0xA0000000, ... "AddressRange", 0x10000);
Specify the DUT ports in the HDL IP core as an hdlcoder.DUTPort
object array and then map the port to the AXI4 slave interface.
hPort = hdlcoder.DUTPort("h_out1", ... "Direction", "OUT", ... "DataType", numerictype(1,16,10), ... "Dimension", [1 1], ... "IOInterface", "AXI4-Lite", ... "IOInterfaceMapping", "0x104");
Map the DUT port objects to the AXI4 slave interface and then read data by using the
readPort
function.
mapPort(hFPGA, hPort);
data = readPort(hFPGA, "h_out1");
Read Data from DUT Port Mapped to AXI4-Stream Interfaces
This example shows how to read data from the DUT ports that are mapped to AXI4-Stream interfaces.
Create an object for the target device.
hFPGA = fpga("Xilinx")
hFPGA = fpga with properties: Vendor: "Xilinx" Interfaces: [0x0 fpgaio.interface.InterfaceBase]
Add the AXI4-Stream interface to the hFPGA
object by using the
addAXI4StreamInterface
function.
addAXI4StreamInterface(hFPGA, ... "InterfaceID", "AXI4-Stream", ... "WriteEnable", true, ... "ReadEnable", true, ... "WriteFrameLength", 1024, ... "ReadFrameLength", 1024);
Specify the DUT port as an hdlcoder.DUTPort
object array and then
map the port to the AXI4-Stream interface.
hPort = hdlcoder.DUTPort("y_out", ... "Direction", "OUT", ... "DataType", numerictype(1,16,10), ... "Dimension", [1 1], ... "IOInterface", "AXI4-Stream");
Map the DUT port objects to the AXI4-Stream interface and then read data by using
the readPort
function.
mapPort(hFPGA, hPort);
data = readPort(hFPGA, "y_out");
Input Arguments
hFPGA
— Target FPGA object
fpga object
fpga
object for the target vendor, specified as an fpga
object.
portName
— DUT port name
string
DUT port name, specified as a string. You create the DUT port as an
hdlcoder.DUTPort
object array. Before you specify the
portName
, you must have mapped the port to an AXI interface by
using the mapPort
function.
Output Arguments
data
— Output data
Scalar
(default) | Vector
Output data that is read from the DUT port, PortName
, returned as
a scalar or a vector.
Version History
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