Commit Graph

1446 Commits (07e52b4566c33b951e45e00ed09aad9e7bf95ef9)

Author SHA1 Message Date
Rejeesh Kutty db924953bb altera- warnings about init values 2017-01-30 10:01:28 -05:00
Lars-Peter Clausen eb8a3fff3c axi_dmac: Set IP core name and description
Add a human readable name and descriptor for the AXI DMAC core.This string
will appear in various places e.g. like the IP catalog. This is a purely
cosmetic change.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-01-30 13:58:48 +01:00
Lars-Peter Clausen 3dd736fe8c axi_dmac: Add identification register
Add a register to the AXI DMAC register map which functions has a
identification register. The register contains the unique value of "DMAC"
(0x444d4143) and allows software to identify whether the peripheral mapped
at a certain address is an axi_dmac peripheral.

This is useful for detecting cases where the specified address contains an
error or is incorrect.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-01-30 13:58:48 +01:00
Adrian Costina 3f3a8bd267 library: forced ad_mem module to be implemented in BRAM for Xilinx devices 2017-01-25 18:12:04 +02:00
Rejeesh Kutty c8b638e182 ad9152- add prbs generators 2017-01-23 10:31:57 -05:00
Rejeesh Kutty a2b2ebbed2 ad_lvds_in- ultrascale/ultrascale+ sim device mess 2017-01-21 20:54:21 -05:00
Rejeesh Kutty afcd11da87 adxcvr- add parameters for xcvr config 2017-01-19 12:40:26 -05:00
Istvan Csomortani 746b97dd96 xilin/axi_adxcvr: Fix clock and reset nets[C 2017-01-19 15:46:16 +02:00
Istvan Csomortani 57bd6acd0f library: Update make file 2017-01-19 15:27:31 +02:00
Istvan Csomortani d3ed417f49 axi_adxcvr: Update the packaging script to fix infer mm issues
- Change the clock and reset port name of the AXI slave interface
to s_axi_aclk and s_axi_aresetn. This way we can use the adi_ip_properties
process to infer the interface.
  - Define an address space reference to the m_axi interface.
2017-01-19 15:16:04 +02:00
Istvan Csomortani 7a7a294865 axi_dmac: Fix memory map infer issues
Define an address space reference to the m_dest_axi and
m_src_axi interfaces.
2017-01-19 15:09:07 +02:00
Istvan Csomortani a7bd4e6e82 scripts/adi_ip: Update the adi_ip_properties process
- Add a process, which automaticaly infer AXI memory mapped
interfaces (adi_ip_infer_mm_interfaces)
  - Add missign line breaks to the 'set_propery supported_families'
command
  - Fix the deletion of pre-infered memory maps
2017-01-19 15:06:47 +02:00
Adrian Costina 61afd106b5 util_clkdiv: Keep as valid only settings common for 7Series and Ultrascale 2017-01-18 11:56:24 +02:00
Adrian Costina 61ee24f26a util_clkdiv: Make the clock division parametrizable and changed C_SIM_DEVICE to SIM_DEVICE 2017-01-16 14:37:26 +02:00
Adrian Costina 4b2602437f util_clkdiv: Added Ultrascale support and switch to BUFGMUX_CTRL for glitch free switching 2017-01-13 13:54:07 +02:00
Istvan Csomortani 1f7d19688a Update Makefile 2017-01-12 15:58:32 +02:00
Istvan Csomortani b59549053c scripts/adi_ip: Fix adi_ip_infer_interfaces process
This patch is a complementary fix of 8b8c37 patch. And fix
all the 'infer interface' issues.

The adi_ip_infer_interfaces process was renamed to
adi_ip_infer_streaming_interfaces. Now the process just do
what its name suggest.

Affected cores were axi_dmac, axi_spdif_rx, axi_spdif_tx, axi_i2s_adi
and axi_usb_fx3. All these cores scripts were updated.
2017-01-12 12:15:33 +02:00
Adrian Costina 9b29941c77 util_clkdiv: Add constraint file 2017-01-11 18:11:53 +02:00
Adrian Costina c78c9cf633 util_fir_int: Updated coefficient file 2016-12-21 10:06:56 +02:00
Rejeesh Kutty c0a2ef1ac4 library- altera power up warnings 2016-12-20 16:18:15 -05:00
Istvan Csomortani ce47cf8d30 ad_sysref_gen: Fix sysref generation
Toggle sysref output just if the sysref_en is asserted.
2016-12-19 18:02:49 +02:00
Istvan Csomortani a228c05bd3 common: Add a SYSREF generation module
The SYSREF generator is using a simple free running counter,
which runs on the JESD204 core clock. The period can be
configured using a parameter, it must respect the constraints
defined by the JESD204 standard.
The generator can be enabled through a GPIO line.
2016-12-17 11:12:10 +02:00
Istvan Csomortani 596d0fa3fb axi_ad9122: Add a constraint for a false path 2016-12-16 12:07:40 +00:00
Istvan Csomortani a00d9870be axi_ip_constr: Fix constraints
Modify a contraint for a false path, so it will be applied to
up_delay_cntr module too.
2016-12-16 12:01:38 +00:00
Istvan Csomortani 99f72a9b3b util_gtlb: this core is obsoleted
The util_gtlb core is obsoleted by xilinx/axi_xcvrlb
2016-12-12 14:23:47 +02:00
Istvan Csomortani 5c8dde8483 util_jesd_gt: this core is obsoleted
The util_jesd_gt core is obsoleted by xilinx/util_adxcvr and altera/avl_adxcvr
2016-12-12 14:15:38 +02:00
Adrian Costina 8ebc8fe4e2 updated makefiles 2016-12-09 23:06:41 +02:00
Rejeesh Kutty 854cd44026 ad9671- xcvr interface changes 2016-12-08 16:05:23 -05:00
Istvan Csomortani 977e6d9189 adi_ip_alt: Fix some typo 2016-12-06 15:24:21 +02:00
Istvan Csomortani 7876c8ffa4 axi_ad9684: Add loaden and phase ports for altera support 2016-12-06 15:24:20 +02:00
Istvan Csomortani a7d3df8757 axi_ad9684: Update hw tcl script for altera 2016-12-06 15:24:20 +02:00
Istvan Csomortani b0a5be8565 axi_ad9122: Add loaden port for altera support 2016-12-06 15:24:20 +02:00
Istvan Csomortani cedca30cd6 axi_ad9122: Update hw tcl script for altera 2016-12-06 15:24:19 +02:00
Istvan Csomortani 0715c962f1 altera/ad_serdes: Fix net alignment for rx_out at ad_serdes_in 2016-12-06 15:24:19 +02:00
Istvan Csomortani 6cf9df50e3 altera/ad_serdes: Define DEVICE_FAMILY in hw script 2016-12-06 15:24:18 +02:00
Istvan Csomortani 8b8c37e2e2 scripts/adi_ip: Remove AXIMM inference from adi_ip_infer_interfaces
The AXI Memory Map interface is infered in the adi_ip_properties process.
Infer it again in the adi_ip_infer_interfaces brakes the flow,
the tool will not find the cell's address segment, so there will not be
any address space assigned to the AXI interface.
Affected cores were axi_i2s_adi and axi_spdif_tx.
2016-12-05 14:33:39 +02:00
Lars-Peter Clausen 753f4bd06e axi_intr_monitor: Slightly modify counter start points
Start the counter_to_interrupt_cnt counter when the counter_to_interrupt
value is written to the register map. This gives applications better
control over when the counter starts counting.

Also start the counter_from_interrupt on the rising edge of the interrupt
signal to avoid bogus values.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-12-02 20:09:29 +01:00
Lars-Peter Clausen 334ce5ddc0 axi_intr_monitor: Fully register IRQ output signal
The IRQ signal goes to a asynchronous domain. In order to avoid glitches to
be observed in that domain make sure that the output signal is fully
registered.

This means that the IRQ signal is no longer mask when the control enable
bit is not set. Instead modify the code to clear the interrupt when the
control enable bit is not set. This turns it into a true reset for the
internal state.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-12-02 19:28:13 +01:00
Rejeesh Kutty 170c781d02 hdlmake.pl- updates 2016-12-01 13:52:11 -05:00
Rejeesh Kutty 95a2e02800 library/makefile- updates 2016-12-01 13:47:02 -05:00
Adrian Costina 609b01f9e4 util_clkdiv: Added division by 2 option 2016-11-24 16:01:37 +02:00
Adrian Costina 91ee4394e4 axi_intr_monitor: Initial commit 2016-11-24 15:19:36 +02:00
Istvan Csomortani f03675cdab axi_dmac: ID_WIDTH must be clog2(FIFO_SIZE*2) 2016-11-24 13:20:45 +02:00
Istvan Csomortani c705623101 axi_dmac: Fix port connection and port width mismatch 2016-11-24 12:01:45 +02:00
Rejeesh Kutty 862bd7ef2c daq3/zc706- xcvr changes 2016-11-23 15:02:20 -05:00
Rejeesh Kutty 025420d6f8 library/axi_xcvrlb- xcvr changes 2016-11-23 12:00:13 -05:00
Rejeesh Kutty 8f562fd069 xcvr updates- board procedure 2016-11-22 14:43:36 -05:00
Rejeesh Kutty 2ea997c3d5 interfaces- remove channel based pll reset 2016-11-22 11:34:29 -05:00
Rejeesh Kutty 3dbed492b3 util_adxcvr: expose cpll/qpll as it is 2016-11-22 11:32:37 -05:00
Rejeesh Kutty 3cbe735bd8 util_adxcvr: regenerate from script 2016-11-22 11:21:04 -05:00
Rejeesh Kutty c57ffc9364 axi_adxcvr- separate pll reset from channels 2016-11-22 11:12:54 -05:00
Istvan Csomortani b9795c7033 xilinx/util_adxcvr: Update enablement dependencies 2016-11-22 17:33:40 +02:00
Lars-Peter Clausen 2f2570fcac axi_i2s: Remove incorrectly inferred interfaces
Remove interfaces that were incorrectly inferred by the tools.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-11-18 15:01:29 +01:00
Lars-Peter Clausen 43c74bf55c axi_i2s: Tie-off optional inputs
Tie-off all optional inputs to 0 so that they are driven to a defined value
when not used.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-11-18 15:01:26 +01:00
Lars-Peter Clausen 26907ef1fd axi_i2s: Remove duplicated clock interface association
The I2S interface has a clock associated to it twice, this will generate a
critical warning when using the core, so remove one of them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-11-18 15:01:24 +01:00
Rejeesh Kutty b85a282748 fmcomms11- lane swap 2016-11-16 10:26:47 -05:00
AndreiGrozav 9d6c93a5d8 Fix warnings 2016-11-14 15:17:15 +02:00
Istvan Csomortani 12d6e46ae7 clean: Delete deprecated source files
The axi_jesd_gt was repleaced by axi_adxcvr IP, which is located
at library/xilinx and library/altera.
The axi_jesd_xcvr was an early version of axi_adxcvr.
The register map is moved to the IP's directory.
2016-11-14 10:43:46 +02:00
Adrian Costina c80033cb1b util_fir_int: removed s_axis_data_tvalid and updated sdrstk 2016-11-11 17:52:19 +02:00
Adrian Costina 6f4dc92dd2 util_fir_int: Fix channel data assignment 2016-11-11 15:46:17 +02:00
Adrian Costina 64d1d54ec0 util_fir_int: Update filter, as it's used with ad9361 in CMOS mode 2016-11-10 17:45:03 +02:00
Adrian Costina 66098b7ae7 util_fir_dec: Update filter, as it's used with ad9361 in CMOS mode 2016-11-10 17:43:04 +02:00
Istvan Csomortani 6073cdded4 axi_ad9250: Tie rx_valid to ground 2016-11-10 10:52:37 +02:00
Istvan Csomortani 8845aeb6ab axi_ad9250: Add missing file to Make and script 2016-11-10 10:48:46 +02:00
Istvan Csomortani 8493bd4329 axi_ad6676: Update the core, sof interface added 2016-11-10 10:39:33 +02:00
Rejeesh Kutty 0b58a2a1db avl_adxcvr- sysclk frequency 2016-11-09 09:21:07 -05:00
Rejeesh Kutty 48ee720901 avl_adxcvr- a5 requires single transceiver controller 2016-11-08 15:20:01 -05:00
Rejeesh Kutty a58597c13a ad9250 - build fixes 2016-11-08 15:17:54 -05:00
Rejeesh Kutty d7357d781b axi_ad9250 - avalon/axi streaming + sof 2016-11-04 15:30:39 -04:00
Rejeesh Kutty ee9c8b884d avlxcvr- add arria v support 2016-11-04 15:01:19 -04:00
Adrian Costina 9dc7f16d80 axi_usb_fx3: Added zero length packet capability 2016-11-03 15:29:56 +02:00
Rejeesh Kutty 1e0fed82f7 alt_serdes- a10 ddio fixes 2016-11-01 12:41:25 -04:00
Istvan Csomortani 5eff357568 up_tdd_cntrl: Fix memory map register writes 2016-11-01 10:06:57 +02:00
Rejeesh Kutty 9f4c5f8060 arradio/ad9361- updates 2016-10-31 15:34:32 -04:00
Rejeesh Kutty b94cc8afb1 altera- cmos cores 2016-10-31 13:13:48 -04:00
Rejeesh Kutty e0459df0f3 altera -c5 qsys alternative 2016-10-31 11:18:27 -04:00
Rejeesh Kutty cc75fa3dfe altera- java/tcl mess handling 2016-10-31 10:54:07 -04:00
Rejeesh Kutty a9d03af771 altera- serdes changes 2016-10-28 14:09:18 -04:00
Adrian Costina f2e12cc88f util_fir_dec: Shifted the output data to the left so that the amplitude remains
constant
2016-10-28 15:18:36 +03:00
Adrian Costina d9b756e7ad util_fir_int: Shifted the output data to the left so that the amplitude remains constant 2016-10-28 15:17:30 +03:00
Adrian Costina 30314e4492 library: Added util_fir_int and util_fir_dec interpolation/decimation filters 2016-10-27 19:31:50 +03:00
Rejeesh Kutty 8107514dde altera/common- ad_serdes_clk 2016-10-27 09:41:10 -04:00
Rejeesh Kutty f7e3703b98 axi_ad9371- avalon-s interfaces 2016-10-27 09:25:00 -04:00
AndreiGrozav 6f611e0d10 altera/alt_serdes: Add support for Cyclone V 2016-10-25 20:32:51 +03:00
AndreiGrozav 08cef5a745 axi_ad9361: Add Cyclone V SERDES support 2016-10-25 20:24:17 +03:00
Rejeesh Kutty 5731ba3300 fmcomms11- xcvr updates 2016-10-24 09:51:40 -04:00
Istvan Csomortani de0c487195 axi_ad9684: Add Altera support for the core 2016-10-24 11:43:22 +03:00
Istvan Csomortani 3f3606d318 axi_ad9122: Add Altera support for the core 2016-10-24 11:43:12 +03:00
Istvan Csomortani aa46de5e5e adi_ip_alt: Add ad_generate_module_inst proc
Add a tcl process, which can be used to generate custom module
names during the generation phase. This will be used to create
different ad_serdes_clk module, in case when independent IOPLLs are
needed for TX and RX.
2016-10-24 11:43:00 +03:00
Istvan Csomortani 707038937a alt_serdes: Add additional parameters
Add additional parameters to keep the top of ad_serdes_* modules
consistant through differente carriers.
2016-10-24 11:42:43 +03:00
Istvan Csomortani 8dbfe9258f axi_ad9162: Delete duplicated port 2016-10-21 13:47:01 +03:00
Rejeesh Kutty 0beecea02d util_adxcvr- ultrascale updates 2016-10-19 13:06:10 -04:00
Lars-Peter Clausen 72c05e8635 axi_dmac: Fix constraints for ultrascale
Replace "PRIMITIVE_SUBGROUP == flop" with "IS_SEQUENTIAL" as the former is
series7 specific while the later works on all platforms. This fixes the
axi_dmac timing constraints for ultrascale based platforms.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2016-10-19 14:00:54 +02:00
Istvan Csomortani ecc0addb8c scripts/adi_ip_alt.tcl: Script is case insensitive for its arguments 2016-10-18 11:25:06 +03:00
Rejeesh Kutty bf949f1a88 axi_xcvrlb- xcvr updates 2016-10-17 16:16:57 -04:00
Rejeesh Kutty 1b3fcb5863 util_adxcvr- parameter defaults 2016-10-17 16:10:57 -04:00
AndreiGrozav a026d44435 axi_generic_adc: Add missing up_adc_common connections 2016-10-12 13:20:26 +03:00
AndreiGrozav b543402051 axi_mc_current_monitor: Add missing up_axi connection 2016-10-12 13:20:26 +03:00
AndreiGrozav 91995c082d axi_ad9684: Fixed up_drp_*data width 2016-10-12 13:20:26 +03:00
AndreiGrozav a505d304af Add up_dac_common missing connections 2016-10-12 13:20:26 +03:00
AndreiGrozav 43ee917d53 Add up_dac_channel missing connections 2016-10-12 13:20:26 +03:00
AndreiGrozav 1131be91ed axi_ad9361: Makefile update 2016-10-11 23:34:13 +03:00
AndreiGrozav b7767aa18f xilinx/axi_ad9361_lvds_if: Remove ila 2016-10-11 18:13:45 +03:00
AndreiGrozav 2d93d787ab altera/ad_cdfilter: Update interface to Verilog 2001 standard 2016-10-11 17:59:21 +03:00
AndreiGrozav 369dad60b0 axi_ad9361: Add Altera SERDES interface support 2016-10-11 17:59:19 +03:00
AndreiGrozav ae47895666 altera/alt_serdes: Fixed SERDES 4 factor initialization 2016-10-11 17:59:17 +03:00
AndreiGrozav d41945f568 altera/ad_serdes: Add support for any SERDES factor less than 8 2016-10-11 17:59:14 +03:00
AndreiGrozav 52194f0fea axi_ad9361: Add DRP connection to the interface module 2016-10-11 17:59:12 +03:00
AndreiGrozav 7194d2eccc axi_ad9361: Grup interfaces to add support for more carriers 2016-10-11 17:58:49 +03:00
Rejeesh Kutty cc6ca4f0f2 ad_lvds_in- ultrascale sim device 2016-10-10 10:39:47 -04:00
Adrian Costina 121b341b45 axi_spdif_rx: Fixed version register issue. Added sampled_data to sensitivity list 2016-10-10 17:30:13 +03:00
Istvan Csomortani ff980551e6 ad_serdes: SERDES_FACTOR handover missing
In modules ad_serdes_in/ad_serdes_out the handover of the parameter
SERDES_FACTOR did not exist, causing unwanted behavioral in case of
factors less than 8.
SERDES_FACTOR must be hand over to DATA_WIDTH parameter of the SERDES
primitive.
2016-10-10 16:38:42 +03:00
Istvan Csomortani f34aa67029 axi_hdmi: Fix a typo 2016-10-10 16:22:18 +03:00
Istvan Csomortani 15f36af4c2 axi_ad9152: Update core to support Altera platforms 2016-10-10 16:21:49 +03:00
Adrian Costina 111adac825 axi_usb_fx3: Updated core
- trig signal will reset state machine
- slrd_n delay will be absorbed by the axi_usb_fx3_if module, when Xilinx DMA is not ready to receive data during a packet
- fx32dma_eop signals when the FX3 DMA buffer should be empty. slrd_n set high and sloe_n set low for another two clock cycles
- eot_fx32dma signals the interface that the packet has been fully transfered. No need for watermark signals
- added length_fx32dma and length_dma2fx3 as requested
2016-10-10 10:33:37 +03:00
Rejeesh Kutty 39fdf11ef3 util_adxcvr- rx/tx clocks 2016-10-05 13:53:02 -04:00
Istvan Csomortani 7ec93ce8e0 util_adxcvr: Fix some typo
GTHE4_CHANNEL is instantiated in case of XCVR_TYPE == 2
2016-10-05 17:42:12 +03:00
Istvan Csomortani 4f587d2e48 util_adxcvr: Delete trailing whitespaces 2016-10-05 17:41:40 +03:00
Istvan Csomortani 1b9d2d434c axi_ad9361_tdd: Delete unused register 2016-10-05 17:41:08 +03:00
Adrian Costina ddceff2b5c axi_usb_fx3: Updated header/footer signature 2016-10-04 16:11:24 +03:00
Rejeesh Kutty 48dd4880a3 util_adxcvr- ultrascale+ initial commit 2016-10-03 16:11:45 -04:00
Rejeesh Kutty 0e8551545c util_adxcvr- ultrascale+ initial commit 2016-10-03 16:11:45 -04:00
Rejeesh Kutty b4652650e4 util_adxcvr- xcvr_type parameter 2016-10-03 16:11:45 -04:00
Rejeesh Kutty 63ddcf1e26 util_adxcvr- synthesis warnings fix 2016-10-03 16:11:45 -04:00
Adrian Costina 8e0dc859af axi_usb_fx3: Update
- added 1 clock delay for slrd_n signal
- rearrange databytes
2016-10-03 15:17:01 +03:00
Istvan Csomortani 43b3761b80 axi_ad9361: Flop the tx and rx valid 2016-10-03 12:24:04 +03:00
Istvan Csomortani 8e25bc01b3 all: Change tab to double space
Occasional file parsing and restructuring become a pain, if tabs exists
in code. General rule of the repos is tab always a double space.
2016-10-01 18:13:42 +03:00
Rejeesh Kutty 6b956066ef xilinx/ad_lvds*- ultrascale+ 2016-09-30 11:55:10 -04:00
Rejeesh Kutty e9105faae1 library/scripts- add beta devices 2016-09-30 11:55:10 -04:00
Costina c072c2f89a util_clkdiv: Add IP 2016-09-30 17:13:51 +03:00
Rejeesh Kutty 7290bcc81a hdlmake- updates 2016-09-29 11:50:58 -04:00
Rejeesh Kutty ffec95f220 ad9371- xcvr updates 2016-09-29 11:50:58 -04:00
Rejeesh Kutty b4fac96aad axi_ad9361- independent disables 2016-09-28 15:45:27 -04:00
Istvan Csomortani f7fb3ccaca axi_ad9361: Change the data path gating
Bring up the datapath gating from the TDD controller module.
2016-09-28 16:36:13 +03:00
Istvan Csomortani df485d7878 axi_ad9684: Fix the PN9 PRBS sequence monitor 2016-09-28 10:47:16 +03:00
Rejeesh Kutty 9defccef70 dacfifo- axi address map fixes 2016-09-27 14:48:23 -04:00
Rejeesh Kutty c98e2e95dd ad9162- xcvr updates 2016-09-26 15:21:45 -04:00
Rejeesh Kutty 692cb10fb2 ad9625- xcvr updates 2016-09-26 15:21:11 -04:00
Istvan Csomortani ad16aec101 axi_ad9684: Fix SERDES modules 2016-09-26 11:14:35 +03:00
Rejeesh Kutty f6c7aa9005 library- dac parameter changes 2016-09-23 16:15:59 -04:00
Rejeesh Kutty 1a11e28821 ad9361- dac data path split 2016-09-23 16:13:46 -04:00
Rejeesh Kutty 6735333aea common- dac data path split 2016-09-23 16:13:24 -04:00
Rejeesh Kutty 6837143110 library/ adc parameter changes 2016-09-23 13:44:47 -04:00
Rejeesh Kutty 7be6168b2e ad9361- adc data path split 2016-09-23 13:42:14 -04:00
Rejeesh Kutty 8729af1b91 common- adc- data path disable split 2016-09-23 13:40:35 -04:00
Rejeesh Kutty 78f7384150 ad9361- vivado synthesis warnings fix 2016-09-22 13:41:18 -04:00
Istvan Csomortani 2b6eb1d65e up_drp: Revert some bit locations
Linuxe drivers are checking the drp_locked status even if the
core does not contains a clock generation/managment module. To
not break all the designs, revert all the status and control bits to
there old locations.
2016-09-22 16:32:42 +03:00
Rejeesh Kutty 21b5e9c634 hdlmake- updates 2016-09-21 11:56:03 -04:00
Rejeesh Kutty 0def596b43 axi_xcvrlb- updates 2016-09-21 11:04:22 -04:00
Rejeesh Kutty d497a7b0ae axi_xcvrlb- constraints 2016-09-21 11:04:22 -04:00