Commit Graph

268 Commits (e9d8b969d645d9c48e2a646c0a6271c345788f8b)

Author SHA1 Message Date
Istvan Csomortani 8ffc35735a axi_ad9361: ad_pps_receiver integration
The ad_pps_receiver is instantiated at the top of core.
The rcounter is placed into adc/dac_common registers space, at the
address 0x30 (word aligned).
The interrupt mask is placed into adc/dac_common, at the address 0x04
(word aligned). Because the core has an instance of both modules, the
interrupt masks are OR-ed together.
2017-07-28 07:57:13 +01:00
Istvan Csomortani c7304922d5 ad_pps_receiver: Initial commit
Add a module to receive 1PPS signal from a GPS module. The module has a
free running counter, which runs on the device's interface clock. The
counter value is latched into a register each time when a 1PPS arrives.
An interrupt signal is also generated in every 1PPS.
2017-07-28 07:46:58 +01:00
Rejeesh Kutty 6c986d9b6a hdl/library- fix syntax errors/synthesis warnings 2017-07-20 14:07:32 -04:00
Lars-Peter Clausen 4f5f15e36e up_clock_mon: Explicitly truncate d_count during up_d_count assignment
The MSB of the d_count signal is used as a overflow marker to stop the
counter from incrementing in the monitored clock domain. It is not exported
through the register map and truncated when assigned to the up_d_count
signal.

Make the truncation explicit to make it clear that this is not a mistake
and to avoid warnings about implicit truncation.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-07-20 19:45:27 +02:00
Istvan Csomortani 866d79dee2 ad_axis_inf_rx: Delete redundant local paramter
All verilog file are using the Verilog-2001 standard to define
and/or declare ports. Definin a port width with a local parameter
is a bad practive, when this standard is used. Some simulators
will crash. Try to avoid it.
2017-07-06 10:01:27 +01:00
Istvan Csomortani e4e74fe6ce common: Delete deprecated modules 2017-06-26 16:12:34 +01:00
Istvan Csomortani 6bcb327d5f common: Remove deprecated modules 2017-06-26 15:43:57 +01:00
Lars-Peter Clausen 9f954303ac up_clock_mon: Fix stopped clock detection logic
A broken version of the stopped clock detection logic was merged by
accident. Fix it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-06-20 17:39:41 +02:00
Istvan Csomortani 50cdb6db67 Merge branch 'jesd204' into dev 2017-05-31 20:44:32 +03:00
Istvan Csomortani 84b2ad51e2 license: Add some clarification to the header license 2017-05-31 18:18:56 +03:00
Istvan Csomortani 85ebd3ca01 license: Update license terms in hdl source files
Fix a few gramatical error, fix the path of the top level license
files.
2017-05-29 09:55:41 +03:00
Istvan Csomortani 10898d6618 constraints: Split the regmap CDC constraint into separate file 2017-05-25 15:12:16 +03:00
Istvan Csomortani 0bf6a37bd0 common: Add grey coder and decoder modules 2017-05-25 15:12:14 +03:00
Istvan Csomortani 6ea87d094e util_delay: Initial commit
Generic module to introduce a fix N cycle delay into a datapath.
2017-05-25 15:12:10 +03:00
Adrian Costina c7df3e8ae9 ad_iqcor: Add scale only correction option 2017-05-24 15:54:58 +03:00
Lars-Peter Clausen 01aea161fa Create CDC helper library
Move the CDC helper modules to a dedicated helper modules. This makes it
possible to reference them without having to use file paths that go outside
of the referencing project's directory.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-23 11:16:07 +02:00
Lars-Peter Clausen 3d8e05ac17 up_clock_mon: Make counter width configurable
The clock monitor reports the ratio of the clock frequencies of a known
reference clock and a monitored unknown clock. The frequency ratio is
reported in a 16.16 fixed-point format.

This means that it is possible to detect clocks that are 65535 times faster
than the reference clock. For a reference clock of 100 MHz that is 6.5 THz
and even if the reference clock is running at only 1 MHz it is still 65
GHz, a clock rate much faster than what we'd ever expect in a FPGA.

Add a configuration option to the clock monitor that allows to reduce the
number of integer bits of ratio. This allows to reduce the utilization
while still being able to cover all realistic clock frequencies.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-23 11:16:07 +02:00
Lars-Peter Clausen 1ecc5aaffc up_clock_mon: Detect stopped clock
Currently when the monitored clock stops the clock monitor retains the old
frequency ratio value and there is no way to detect that the clock has
stopped and the reported value is indistinguishable form a clock still
running at the right rate.

If a full iteration as elapsed on the monitoring side and there is no
indication that the counter on the monitored side has started running set
the reported clock ratio value to 0 to indicate that the clock has stopped.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-23 11:16:07 +02:00
Lars-Peter Clausen 139876d28a up_clock_mon: Remove extra hold register
Currently the clock monitor features a hold register in the monitored clock
domain. This old register is used to store a instantaneous copy of the
counter register. The value in the old register is then transferred to the
monitoring domain. Since the counter is continuously counting it is not
possible to directly transfer it since that might result in inconsistent
data.

Instead stop the counter and hold the registers stable for a duration that
is long enough for the monitoring domain to correctly capture the value.
Once the value has been transferred the counter is reset and restarted for
the next iteration.

This allows to eliminate the hold register, which slightly reduces
utilization.

The externally visible behaviour is identical before and after the patch.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-23 11:16:07 +02:00
Lars-Peter Clausen bf44f357fe Fix VHDL files license header, second try
While VHDL uses -- for comments uris still use //.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-17 15:25:08 +02:00
Lars-Peter Clausen 5ee9480142 Fix VHDL files license header
VHDL uses '--' for comments rather than '//'.

Also remove left over old license headers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-05-17 15:21:06 +02:00
Istvan Csomortani 9055774795 all: Update license for all hdl source files
All the hdl (verilog and vhdl) source files were updated. If a file did not
have any license, it was added into it. Files, which were generated by
a tool (like Matlab) or were took over from other source (like opencores.org),
were unchanged.

New license looks as follows:

Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.

Each core or library found in this collection may have its own licensing terms.
The user should keep this in in mind while exploring these cores.

Redistribution and use in source and binary forms,
with or without modification of this file, are permitted under the terms of either
 (at the option of the user):

  1. The GNU General Public License version 2 as published by the
     Free Software Foundation, which can be found in the top level directory, or at:
https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html

OR

  2.  An ADI specific BSD license as noted in the top level directory, or on-line at:
https://github.com/analogdevicesinc/hdl/blob/dev/LICENSE
2017-05-17 11:52:08 +03:00
Adrian Costina ce4f9bf906 up_dac_common: rename internal signals 2017-05-15 18:58:26 +03:00
Rejeesh Kutty d374f5b091 library/up_adc_common- add sref sync option 2017-05-10 14:33:56 -04:00
Istvan Csomortani 801fb2281e util_pulse_gen: The valid period is stored in pulse_period_d 2017-04-27 11:28:24 +03:00
Istvan Csomortani 9cd218eb90 up_dac_common: Increase datawidth of dac_datarate
In case of high precision devices with just a simple SPI interface
for control and data, the effective data rate can be significatly
lower than the SPI clock, and more importantly there isn't any relation
between the two clock domain.
The rate is defined by a SOT (start of transfer) generator, which
initiates a SPI transfer. Taking the fact that the generator runs
on system clock (100 MHz), and the device can require smaller rate (in kHz domain),
the 7 bit dac_datarate register is just too small.

Therefor increasing to 16 bit.
2017-04-27 11:24:08 +03:00
Istvan Csomortani d061104a3c util_pulse_gen: Add configuration interface for 'pulse period'. 2017-04-27 11:21:12 +03:00
Rejeesh Kutty 5d6b018b2b ad9162- add iq swap 2017-04-26 20:54:47 -04:00
Istvan Csomortani 5fe7a1b100 axi_dacfifo: Move the axi_dac_fifo_bypass module to util_dac_fifo_bypass 2017-04-21 13:23:03 +03:00
Istvan Csomortani 931758b70c ad_tdd_control: Optimize the burst_counter logic
The tdd_burst_counter should be in reset if the tdd_cstate
is not ON. (tdd counter is inactive)
2017-04-19 12:02:31 +03:00
Adrian Costina ac5efc9adc library: axi_i2s_adi, axi_spdif_rx, axi_spdif_tx, util_axis_fifo rename ports to lowercase 2017-04-18 12:17:41 +02:00
Lars-Peter Clausen 9550c7f352 up_axi: Allow to configure AXI address width
Not all peripherals need the full address space. To be able to infer the
size of the address space of a peripheral allow the size of the AXI address
signals to be configurable rather than hardcoding its width to 32 bit.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-04-18 12:17:40 +02:00
Adrian Costina 118dd18ba0 up_dac_common: Added clock enable control for the DAC cores 2017-04-18 12:17:40 +02:00
Adrian Costina 2296ef5882 up_adc_common: Added clock enable control for the ADC cores 2017-04-18 12:17:40 +02:00
Lars-Peter Clausen 957730c421 up_dac_common: Allow to disable GPIO registers
Not all peripherals use the GPIO register settings, but the registers still
take up a fair amount of space in the register map. Add options to allow to
disable them when not needed. This helps to reduce the utilization for
peripherals where these features are not needed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-04-18 12:17:39 +02:00
Lars-Peter Clausen 0ae0da488b up_adc_common: Allow to disable GPIO and START_CODE registers
Not all peripherals use the GPIO and START_CODE register settings, but the
registers still take up a fair amount of space in the register map. Add
options to allow to disable them when not needed. This helps to reduce the
utilization for peripherals where these features are not needed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2017-04-18 12:17:38 +02:00
Istvan Csomortani 1c23cf4621 all: Update verilog files to verilog-2001 2017-04-13 11:59:55 +03:00
Istvan Csomortani ebfed4b24b ad_axi_ip_constr.xdc: Delete file 2017-03-30 16:16:02 +03:00
Istvan Csomortani 8ba6012b6b restructure: Move xilinx specific constraints to /library/xilinx/common/ 2017-03-30 16:16:02 +03:00
Istvan Csomortani 335fef0f42 ad_axi_ip_constr: Split up this constraint file into separate files
For experimentation, to solve a constraint scoping issue, split up the
ad_axi_ip_constraint file into separate constraints file, in function
of there parent module.
2017-03-29 18:31:40 +03:00
Rejeesh Kutty b0e88eb5ff axi_ad9361- add receive init delay 2017-03-13 16:28:24 -04:00
Istvan Csomortani 1d6ddacfd6 axi_ip_constr: Fix constraints
The filter for CDC registers were too generic, and a few non-CDC
register were set as asynchronous register.
2017-02-27 16:25:09 +02:00
Istvan Csomortani 2da7dd4079 axi_ip_constr: Update constraints
Xilinx recommends that all synchronizer flip-flops have
their ASYNC_REG property set to true in order to preserve the
synchronizer cells through any logic optimization during synthesis
and implementation.
2017-02-23 11:33:25 +02:00
Rejeesh Kutty db924953bb altera- warnings about init values 2017-01-30 10:01:28 -05:00
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 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 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 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