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| author | Daniel Jepson <daniel.jepson@ni.com> | 2017-06-05 14:57:11 -0700 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2017-12-22 15:03:59 -0800 |
| commit | 45012fa48cd82fcc757ca46ce9ee270e670f590f (patch) | |
| tree | 1994fca9a7428aa23b400e03d7bfea3ac62e5f6c /mpm | |
| parent | 8db0caec221bb24edecf5cea41520c1d2de9ec84 (diff) | |
| download | uhd-45012fa48cd82fcc757ca46ce9ee270e670f590f.tar.gz uhd-45012fa48cd82fcc757ca46ce9ee270e670f590f.tar.bz2 uhd-45012fa48cd82fcc757ca46ce9ee270e670f590f.zip | |
EISCAT: Hard reset ADCs before init, fixed interleaving engine
Diffstat (limited to 'mpm')
| -rw-r--r-- | mpm/python/usrp_mpm/dboard_manager/eiscat.py | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/mpm/python/usrp_mpm/dboard_manager/eiscat.py b/mpm/python/usrp_mpm/dboard_manager/eiscat.py index 980a64fcc..5f117c207 100644 --- a/mpm/python/usrp_mpm/dboard_manager/eiscat.py +++ b/mpm/python/usrp_mpm/dboard_manager/eiscat.py @@ -104,11 +104,17 @@ class ADS54J56(object): self.regs.poke8(0x0053, 0x80) # Set clk divider to div-2 self.regs.poke8(0x0039, 0xC0) # ALWAYS WRITE 1 to this bit self.regs.poke8(0x0059, 0x20) # ALWAYS WRITE 1 to this bit - self.regs.poke8(0x4004, 0x68) # + self.regs.poke8(0x4004, 0x68) # Select Main Digital page self.regs.poke8(0x4003, 0x00) # - self.regs.poke8(0x6000, 0x01) # Reset interleaving engine for Ch A-B + self.regs.poke8(0x6042, 0x02) # Set interleaving correction to 3rd nyquist zone + self.regs.poke8(0x604E, 0x80) # Enable correction + self.regs.poke8(0x7042, 0x02) # Set interleaving correction to 3rd nyquist zone + self.regs.poke8(0x704E, 0x80) # Enable correction + self.regs.poke8(0x6000, 0x00) # Reset interleaving engine for Ch A-B (set to 0-1-0) + self.regs.poke8(0x6000, 0x01) # self.regs.poke8(0x6000, 0x00) # - self.regs.poke8(0x7000, 0x01) # Reset interleaving engine for Ch C-D + self.regs.poke8(0x7000, 0x00) # Reset interleaving engine for Ch C-D (set to 0-1-0) + self.regs.poke8(0x7000, 0x01) # self.regs.poke8(0x7000, 0x00) # self.regs.poke8(0x4004, 0x61) # Select decimation filter page of JESD bank. self.regs.poke8(0x4003, 0x41) # @@ -514,6 +520,12 @@ class EISCAT(DboardManagerBase): self.log.info("Radio-register UIO object successfully generated!") self._spi_ifaces = _init_spi_devices() # Chips don't have power yet! self.log.info("Loaded SPI interfaces!") + # An occasional failure to train the ADC-FPGA JESD204B link was cropping up during + # dev. A simple solution is to turn off the power and control signals to the DB + # before configuration begins (for the first-run case this call is a no-op, but + # for reconfiguration, it turns off the power). + self._deinit_power(self.radio_regs) + time.sleep(.100) # This time is arbitrarily assigned and seems to work well. self._init_power(self.radio_regs) # Now, we can talk to chips via SPI self.dboard_clk_control = _init_clock_control(self.radio_regs) self.lmk = _init_lmk( @@ -557,9 +569,7 @@ class EISCAT(DboardManagerBase): """ self.log.trace("Sending SYSREF via MPM...") self.radio_regs.poke32(self.SYSREF_CONTROL, 0x0) - time.sleep(0.001) self.radio_regs.poke32(self.SYSREF_CONTROL, 0x1) - time.sleep(0.001) self.radio_regs.poke32(self.SYSREF_CONTROL, 0x0) def init_adcs_and_deframers(self): |