diff options
| -rw-r--r-- | mpm/python/usrp_mpm/dboard_manager/magnesium.py | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/mpm/python/usrp_mpm/dboard_manager/magnesium.py b/mpm/python/usrp_mpm/dboard_manager/magnesium.py index 7cc1ca965..586498e73 100644 --- a/mpm/python/usrp_mpm/dboard_manager/magnesium.py +++ b/mpm/python/usrp_mpm/dboard_manager/magnesium.py @@ -122,8 +122,6 @@ class Magnesium(DboardManagerBase): self.log.trace("Initializing Magnesium daughterboard, slot index {}".format(self.slot_idx)) self.ref_clock_freq = 10e6 # TODO: make this not fixed - self.log.debug("Loading C++ drivers for CPLD SPI.") - self.cpld_regs = create_spidev_iface_cpld(self._spi_nodes['cpld']) self.log.debug("Loading C++ drivers...") self._device = lib.dboards.magnesium_manager( @@ -189,6 +187,19 @@ class Magnesium(DboardManagerBase): offset_error*1e12 )) self.log.info("Sample Clock Synchronization Complete!") + def _init_cpld(): + "Initialize communication with the Mg CPLD" + CPLD_SIGNATURE = 0xCAFE + cpld_regs = self._spi_ifaces['cpld'] + signature = cpld_regs.peek16(0x00) + self.log.trace("CPLD Signature: 0x{:X}".format(signature)) + if signature != CPLD_SIGNATURE: + self.log.error("CPLD Signature Mismatch! Expected: 0x{:x}".format(CPLD_SIGNATURE)) + raise RuntimeError("CPLD Status Check Failed!") + self.log.trace("CPLD Revision: 0d{}".format(cpld_regs.peek16(0x01))) + revision_msb = cpld_regs.peek16(0x04) + self.log.trace("CPLD Date Code: 0x{:X}".format(cpld_regs.peek16(0x03) | (revision_msb << 16))) + return cpld_regs @@ -200,6 +211,7 @@ class Magnesium(DboardManagerBase): self.log.info("Radio-register UIO object successfully generated!") self._spi_ifaces = _init_spi_devices() self.log.info("Loaded SPI interfaces!") + self.cpld_regs = _init_cpld() self.dboard_clk_control = _init_clock_control(self.radio_regs) self.lmk = _init_lmk( self.slot_idx, @@ -238,22 +250,26 @@ class Magnesium(DboardManagerBase): - def cpld_peek16(self, addr): + def cpld_peek(self, addr): + """ + Debug for accessing the CPLD via the RPC shell. + """ + self.cpld_regs = create_spidev_iface_cpld(self._spi_nodes['cpld']) + self.log.trace("CPLD Signature: 0x{:X}".format(self.cpld_regs.peek16(0x00))) + revision_msb = self.cpld_regs.peek16(0x04) + self.log.trace("CPLD Revision: 0x{:X}".format(self.cpld_regs.peek16(0x03) | (revision_msb << 16))) return self.cpld_regs.peek16(addr) - def cpld_poke16(self, addr, data): - return self.cpld_regs.poke16(addr, data) - - def lmk_peek(self, addr): - return self.lmk.peek8(addr) - - def lmk_poke(self, addr, data): - return self.lmk.poke8(addr, data) - - def lmk_setup_dbg(self): - self.lmk.init() - self.lmk.config() - return "LMK Init Success" + def cpld_poke(self, addr, data): + """ + Debug for accessing the CPLD via the RPC shell. + """ + self.cpld_regs = create_spidev_iface_cpld(self._spi_nodes['cpld']) + self.log.trace("CPLD Signature: 0x{:X}".format(self.cpld_regs.peek16(0x00))) + revision_msb = self.cpld_regs.peek16(0x04) + self.log.trace("CPLD Revision: 0x{:X}".format(self.cpld_regs.peek16(0x03) | (revision_msb << 16))) + self.cpld_regs.poke16(addr, data) + return self.cpld_regs.peek16(addr) def init_jesd(self, uio): |