"""
Helper function used to check board version and import matching packages.
"""
from typing import Tuple, List
from types import ModuleType
from pkg_resources import parse_version
import samna
__all__ = ["find_xylo_hdks", "check_firmware_versions"]
[docs]def find_xylo_hdks() -> Tuple[List["XyloHDK"], List[ModuleType], List[str]]:
"""
Enumerate connected Xylo HDKs, and import the corresponding support module
Returns:
(Tuple[List["XyloHDK"], List[ModuleType], List[str]]): (hdks, modules, versions)
hdks (List): A (possibly empty) list of HDK devices
modules (List): A (possibly empty) list of python modules providing support for the corresponding Xylo HDK
versions (List): A (possibly empty) list containing the version string for each detected HDK
"""
# - Get a list of devices
device_list = samna.device.get_all_devices()
xylo_hdks = []
xylo_support_modules = []
xylo_versions = []
for d in device_list:
if d.device_type_name == "XyloA2TestBoard":
dev = samna.device.open_device(d)
if not check_firmware_versions(dev, "0.11.5", "1.1.3"):
raise ValueError(
"The firmware of the connected Xylo HDK is unsupported, and must be upgraded."
)
print(
"The connected Xylo HDK contains a Xylo Audio v2 (SYNS61201). Importing `rockpool.devices.xylo.syns61201`"
)
import rockpool.devices.xylo.syns61201 as x2
xylo_hdks.append(dev)
xylo_support_modules.append(x2)
xylo_versions.append("syns61201")
elif (
d.device_type_name == "XyloDevKit" or d.device_type_name == "XyloTestBoard"
):
print(
"The connected Xylo HDK contains a Xylo SNN core (SYNS61300). Importing `rockpool.devices.xylo.syns61300`"
)
import rockpool.devices.xylo.syns61300 as x1
xylo_hdks.append(samna.device.open_device(d))
xylo_support_modules.append(x1)
xylo_versions.append("syns61300")
elif d.device_type_name == "XyloImuTestBoard":
dev = samna.device.open_device(d)
if not check_firmware_versions(dev, "0.11.5", "1.1.3"):
raise ValueError(
"The firmware of the connected Xylo HDK is unsupported, and must be upgraded."
)
print(
"The connected Xylo HDK contains a Xylo IMU. Importing `rockpool.devices.xylo.syns63300`"
)
import rockpool.devices.xylo.syns63300 as imu
xylo_hdks.append(dev)
xylo_support_modules.append(imu)
xylo_versions.append("syns63300")
return xylo_hdks, xylo_support_modules, xylo_versions
def check_firmware_versions(
dev: "XyloHDK", min_fxtree_ver: str, min_unifirm_ver: str
) -> bool:
"""
Verify the firmware versions on an HDK meet a minimum standard
Arguments:
dev (XyloHDK): A connected HDK to check
min_fxtree_ver (str): The minimum version string for the FX3 chip firmware
min_unifirm_ver (str): The minimum version string for the FPGA Unifirm version
"""
# - Read device firmware versions
vers = dev.get_firmware_versions()
if parse_version(vers.fxtree) < parse_version(min_fxtree_ver):
return False
if parse_version(vers.unifirm) < parse_version(min_unifirm_ver):
return False
return True