diff options
Diffstat (limited to 'mpm')
| -rw-r--r-- | mpm/python/usrp_mpm/cores/nijesdcore.py | 66 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/cores/tdc_sync.py | 4 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/dboard_manager/magnesium.py | 3 | ||||
| -rw-r--r-- | mpm/python/usrp_mpm/dboard_manager/mg_init.py | 7 |
4 files changed, 50 insertions, 30 deletions
diff --git a/mpm/python/usrp_mpm/cores/nijesdcore.py b/mpm/python/usrp_mpm/cores/nijesdcore.py index d6f465c53..90b45430f 100644 --- a/mpm/python/usrp_mpm/cores/nijesdcore.py +++ b/mpm/python/usrp_mpm/cores/nijesdcore.py @@ -1,5 +1,5 @@ # -# Copyright 2017 Ettus Research, a National Instruments Company +# Copyright 2017-2018 Ettus Research, a National Instruments Company # # SPDX-License-Identifier: GPL-3.0-or-later # @@ -8,11 +8,12 @@ JESD FPGA Core Interface """ import time +from six import iteritems from builtins import hex from builtins import object from usrp_mpm.mpmlog import get_logger -class NIMgJESDCore(object): +class NIJESDCore(object): """ Provide interface for the FPGA JESD Core. Works with Magnesium/Mykonos daughterboards only. @@ -21,6 +22,13 @@ class NIMgJESDCore(object): regs -- regs class to use for peek/poke """ + # Bump this whenever we stop supporting older FPGA images or boards. + # YYMMDDHH + OLDEST_COMPAT_VERSION = 0x17122214 + # Bump this whenever changes are made to the host code. + CURRENT_VERSION = 0x18071209 + + # Register offsets for JESD core. DB_ID = 0x0630 MGT_QPLL_CONTROL = 0x2000 MGT_PLL_POWER_DOWN_CONTROL = 0x200C @@ -38,31 +46,37 @@ class NIMgJESDCore(object): JESD_REVISION_REG = 0x2104 JESD_OLD_COMPAT_REV_REG = 0x2108 + # NIJESDCore configuration attributes. + # These parameters should be set per board (ie. Mg, Rh, etc.) at the creation + # of the NIJESDCore object. Use **kwargs to pass a dict which keys correspond + # to the parameter's name (eg. {"lmfc_divider": 12, ...}). + JESDCORE_DEFAULTS = {"qplls_used" : 1, # Number of QPLLs used. + "cplls_used" : 0, # Number of CPLLs used. + "rx_lanes" : 4, # Number of RX lanes used. + "tx_lanes" : 4, # Number of TX lanes used. + "bypass_descrambler": True, # Bypass the desrambler IP. + "bypass_scrambler" : True, # Bypass the scrambler IP. + "lmfc_divider" : 10, # Number of FPGA clock cycles per LMFC period. + "rx_sysref_delay" : 10, # Cycles of delay added to RX SYSREF + "tx_sysref_delay" : 10, # Cycles of delay added to TX SYSREF + "tx_driver_swing" : 0b1111, # See UG476, TXDIFFCTRL + "tx_precursor" : 0b00000, # See UG476, TXPRECURSOR + "tx_postcursor" : 0b00000} # See UG476, TXPOSTCURSOR - def __init__(self, regs, slot_idx=0): + def __init__(self, regs, slot_idx=0, **kwargs): self.regs = regs self.log = get_logger("NIJESD204bCore-{}".format(slot_idx)) assert hasattr(self.regs, 'peek32') assert hasattr(self.regs, 'poke32') - # FutureWork: The following are constants for the Magnesium board. These need - # to change to variables to support other interfaces. - self.qplls_used = 1 - self.cplls_used = 0 - self.rx_lanes = 4 - self.tx_lanes = 4 - self.bypass_descrambler = False - self.bypass_scrambler = True - self.lmfc_divider = 20 # Number of FPGA clock cycles per LMFC period. - self.rx_sysref_delay = 8 # Cycles of delay added to RX SYSREF - self.tx_sysref_delay = 11 # Cycles of delay added to TX SYSREF - self.tx_driver_swing = 0b1111 # See UG476, TXDIFFCTRL - self.tx_precursor = 0b00000 # See UG476, TXPRECURSOR - self.tx_postcursor = 0b00000 # See UG476, TXPOSTCURSOR - # Bump this whenever we stop supporting older FPGA images or boards. - # YYMMDDHH - self.oldest_compat_version = 0x17122214 - # Bump this whenever changes are made to the host code. - self.current_version = 0x17122214 + # Initialize the driver's attributes with the default value, or a user-given + # value if the attribute key exists in kwargs. + for key, default_value in iteritems(self.JESDCORE_DEFAULTS): + setattr(self, key, kwargs.get(key, default_value)) + assert type(getattr(self, key)) == type(default_value), \ + "Invalid type for attribute {}".format(key) + self.log.trace("Initialized attribute {0} = {1}." + .format(key, getattr(self, key))) + def check_core(self): """ @@ -76,15 +90,15 @@ class NIMgJESDCore(object): # Host Current Rev >= FPGA Oldest Compatible Rev fpga_current_revision = self.regs.peek32(self.JESD_REVISION_REG) & 0xFFFFFFFF fpga_old_compat_revision = self.regs.peek32(self.JESD_OLD_COMPAT_REV_REG) & 0xFFFFFFFF - if fpga_current_revision < self.oldest_compat_version: + if fpga_current_revision < self.OLDEST_COMPAT_VERSION: self.log.error("Revision check failed! MPM oldest supported revision " "(0x{:08X}) is too new for this FPGA revision (0x{:08X})." - .format(self.oldest_compat_version, fpga_current_revision)) + .format(self.OLDEST_COMPAT_VERSION, fpga_current_revision)) raise RuntimeError('This MPM version does not support the loaded FPGA image. Please update images!') - if self.current_version < fpga_old_compat_revision: + if self.CURRENT_VERSION < fpga_old_compat_revision: self.log.error("Revision check failed! FPGA oldest compatible revision " "(0x{:08X}) is too new for this MPM version (0x{:08X})." - .format(fpga_current_revision, self.current_version)) + .format(fpga_current_revision, self.CURRENT_VERSION)) raise RuntimeError('The loaded FPGA version is too new for MPM. Please update MPM!') self.log.trace("JESD Core current revision: 0x{:08X}".format(fpga_current_revision)) self.log.trace("JESD Core oldest compatible revision: 0x{:08X}".format(fpga_old_compat_revision)) diff --git a/mpm/python/usrp_mpm/cores/tdc_sync.py b/mpm/python/usrp_mpm/cores/tdc_sync.py index bb94d9826..f7ed09b7d 100644 --- a/mpm/python/usrp_mpm/cores/tdc_sync.py +++ b/mpm/python/usrp_mpm/cores/tdc_sync.py @@ -1,5 +1,5 @@ # -# Copyright 2017 Ettus Research, a National Instruments Company +# Copyright 2017-2018 Ettus Research, a National Instruments Company # # SPDX-License-Identifier: GPL-3.0-or-later # @@ -109,7 +109,7 @@ class ClockSynchronizer(object): self.ref_clk_freq*1e-6)) raise RuntimeError("TDC does not support the selected reference clock rate!") self.supported_radio_clk_freqs = [104e6, 122.88e6, 125e6, 153.6e6, 156.25e6, \ - 200e6, 250e6] + 200e6, 245.76e6, 250e6] if self.radio_clk_freq not in self.supported_radio_clk_freqs: self.log.error("Clock synchronizer does not support the selected radio clock" " frequency. Selected rate: {:.2f} MHz".format( diff --git a/mpm/python/usrp_mpm/dboard_manager/magnesium.py b/mpm/python/usrp_mpm/dboard_manager/magnesium.py index 06dff175f..ca3c74e4b 100644 --- a/mpm/python/usrp_mpm/dboard_manager/magnesium.py +++ b/mpm/python/usrp_mpm/dboard_manager/magnesium.py @@ -422,7 +422,8 @@ class Magnesium(DboardManagerBase): db_clk_control = DboardClockControl(dboard_ctrl_regs, self.log) db_clk_control.reset_mmcm() # Place the JESD204b core in reset, mainly to reset QPLL/CPLLs. - jesdcore = nijesdcore.NIMgJESDCore(dboard_ctrl_regs, self.slot_idx) + jesdcore = nijesdcore.NIJESDCore(dboard_ctrl_regs, self.slot_idx, + **MagnesiumInitManager.JESD_DEFAULT_ARGS) jesdcore.reset() # The reference clock is handled elsewhere since it is a motherboard- # level clock. diff --git a/mpm/python/usrp_mpm/dboard_manager/mg_init.py b/mpm/python/usrp_mpm/dboard_manager/mg_init.py index 62cc27a4f..d2b597c21 100644 --- a/mpm/python/usrp_mpm/dboard_manager/mg_init.py +++ b/mpm/python/usrp_mpm/dboard_manager/mg_init.py @@ -76,6 +76,11 @@ class MagnesiumInitManager(object): # Variable PPS delay before the RP/SP pulsers begin. Fixed value for the # N3xx devices. N3XX_INT_PPS_DELAY = 4 + # JESD core default configuration. + JESD_DEFAULT_ARGS = {"bypass_descrambler": False, + "lmfc_divider" : 20, + "rx_sysref_delay" : 8, + "tx_sysref_delay" : 11} def __init__(self, mg_class, spi_ifaces): self.mg_class = mg_class @@ -525,7 +530,7 @@ class MagnesiumInitManager(object): read_only=False ) as dboard_ctrl_regs: self.log.trace("Creating jesdcore object...") - jesdcore = nijesdcore.NIMgJESDCore(dboard_ctrl_regs, slot_idx) + jesdcore = nijesdcore.NIJESDCore(dboard_ctrl_regs, slot_idx, **self.JESD_DEFAULT_ARGS) # Now get cracking with the actual init sequence: self.log.trace("Creating dboard clock control object...") db_clk_control = DboardClockControl(dboard_ctrl_regs, self.log) |