Read cfgmem file into memory
Syntax
create_hw_cfgmem ‑hw_device <arg> [‑quiet] [‑verbose] <mem_device>
Usage
Name | Description |
---|---|
-hw_device
|
hw_device object with which to associate hw_cfgmem object |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
<mem_device>
|
name of flash memory device as returned by get_cfgmem_parts |
Categories
Description
Create a hw_cfgmem object associated with the specified hw_device.
The process whereby the bitstream data is loaded or programmed into the Xilinx® FPGA is called configuration. Configuration is designed to be flexible to accommodate different application needs and, wherever possible, to leverage existing system resources to minimize system costs.
AMD FPGAs are configured by loading design-specific configuration data, in the form of a bitstream file, into the internal memory of the hw_device. The hw_cfgmem defines a flash memory device used for configuring and booting the AMD FPGA device. Once the hw_cfgmem object is created, and associated with the hw_device, the configuration memory can be programmed with the bitstream and other data using the program_hw_cfgmem
command.
The hw_cfgmem object is associated with the specified hw_device object through the PROGRAM.HW_CFGMEM property on the device object. Use the get_hw_cfgmems
command to work with the hw_cfgmem object, or use the get_property
command to obtain the object from the hw_device:
get_property PROGRAM.HW_CFGMEM [current_hw_device]
program_hw_cfgmem
or readback_hw_cfgmem
.This command returns the created hw_cfgmem object, or returns an error if it fails.
Arguments
-hw_device <arg>
- (Required) Specify the hw_device object to associate the memory configuration device with. The hw_device must be specified as an object as returned by the get_hw_devices
command or current_hw_device
command.
-quiet
- (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
-verbose
- (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config
command.<mem_device> - (Required) Specify the flash memory device to use for configuring the associated hw_device. The configuration memory must be specified as a cfgmem_part object object using the get_cfgmem_parts
command.
Example
The following example:
- Gets the PART associated with the
current_hw_device
. - Gets a list of cfgmem_parts that are compatible with the device part.
- Uses one of the compatible parts to create a new hw_cfgmem object.
- Sets the PROGRAM.FILE property of the current hw_cfgmem object to the cfgmem file created with the
write_cfgmem
command. - Programs the current hw_cfgmem object.
set devPart [get_property PART [current_hw_device]]
set cfgParts [get_cfgmem_parts -of [get_parts $devPart]]
create_hw_cfgmem -hw_device [current_hw_device] [lindex $cfgParts 0 ]
set_property PROGRAM.FILE {C:/Data/cfgmem_file.mcs} [current_hw_cfgmem]
program_hw_cfgmem [current_hw_cfgmem]