47928a2c0d
sawg: disable limiter
...
temporary workaround to permit testing other aspects
2017-06-22 17:31:04 +02:00
cd2ac53bc5
dsp/sat_add: make width mandatory
2017-06-22 17:28:39 +02:00
9b940aa876
dsp/sat_add: spell out logic more
2017-06-22 16:55:13 +02:00
d0cf0f2b87
sawg/limiter: make signed signals explicitly
2017-06-22 13:44:36 +02:00
bd1438d28e
sawg: wrap limits init values
2017-06-22 10:26:29 +02:00
cccd01e81e
sawg: cleanup sat_add logic
2017-06-22 10:26:29 +02:00
570f2cc1ff
dsp/tools/SatAdd: fix reuse of clipped signal
2017-06-22 10:26:29 +02:00
4b3aad2563
sawg: clean up Config
...
* unify I and Q data limiters. there is no conceivable way why they
would be different.
* reorder clr bits to be like consistent
* move the sat add limiter to before the hbf again
2017-06-22 10:26:29 +02:00
b6569df02f
dsp/tools: clean up SatAddMixin logic
2017-06-22 10:26:29 +02:00
3f37870e25
sawg: register pre-hbf adder
2017-06-13 18:15:44 +02:00
e229edd5d5
sawg: add register after hbf for timing
2017-06-12 23:08:27 +02:00
9a8a7b9102
sawg: handle clipping interpolator
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* give 1 bit headroom to interpolator to handle overshoot
* fix Config limiter widths (NFC)
* move clipper to behind the HBF to correctly shield DUC
This leaves a factor of two headroom for the sum of the following
effects:
* HBF overshoot (~15 % of the step)
* A1/A2 DDS sum
While this is technically not sufficient and can still lead to
overflows, it is unlikely that one would trigger those. It would require
doing large amplitude A1, large amplitude A2 and additionally doing
amplitude/phase jumps that would overshoot the HBF. No sane person would
try that, right?
closes #743
2017-06-12 20:33:54 +02:00
1fb3995ffc
Revert "fir/ParallelHBFUpsampler: add headroom (gain=2)"
...
This reverts commit 6ac9d0c41e
2017-06-12 20:07:25 +02:00
332bcc7f3b
fir: check widths
2017-06-12 20:07:23 +02:00
6ac9d0c41e
fir/ParallelHBFUpsampler: add headroom (gain=2)
...
This addresses part of #743
2017-06-12 18:59:45 +02:00
4901cb9a8a
sawg: fix clr width
2017-05-22 17:46:55 +02:00
253ee950f6
sawg: fix config channel addr
2017-05-22 17:45:14 +02:00
f5f662200b
fir: streamline, optimize DSP extraction, left-align inputs
2016-12-20 21:39:51 +01:00
cfb66117af
fir: size hint for pre-adder
2016-12-20 17:58:06 +01:00
f310274e39
fir: cleanup halfgen4
2016-12-20 17:58:06 +01:00
115ea67860
fir: automatically use transposed topology
2016-12-14 19:16:07 +01:00
a451b675c9
Revert "fir: different adder layout"
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This reverts commit 6f50e77b409c293c1905f28e69d79403a0803866.
2016-12-14 19:16:07 +01:00
93076b8efa
fir: different adder layout
2016-12-14 19:16:07 +01:00
61abd994e9
Revert "fir: force dsp48"
...
This reverts commit 0ad433832d1b6dcd803ffa086ae73b2ee0568326.
2016-12-14 19:16:07 +01:00
641d109786
fir: force dsp48
2016-12-14 19:16:07 +01:00
8381db279f
sawg: wire up all HBF outputs, latency compensation in phys, simplify
2016-12-14 19:16:07 +01:00
4c27029be0
sawg: fix limit regs
2016-12-14 19:16:07 +01:00
f6071a5812
sawg/hbf: tweak pipeline for timing
2016-12-08 17:00:53 +01:00
b7a308d33d
fir: register multiplier output
2016-12-08 17:00:39 +01:00
18e3f58c22
sawg: reduce coefficient width
2016-12-08 16:14:32 +01:00
598da09a93
sawg: fix latency
2016-12-08 15:53:35 +01:00
3eef6229cc
sawg: use ParallelHBFCascade to AA [WIP]
2016-12-08 15:32:57 +01:00
a629eb1665
fir: add ParallelHBFCascade
2016-12-08 15:30:26 +01:00
d303225249
fir: add ParallelFIR and test
2016-12-08 15:21:04 +01:00
7e0f3edca5
gateware/dsp: add FIR and test
2016-12-07 19:14:23 +01:00
d8b5eac856
sawg: style
2016-11-29 20:51:40 +01:00
74e5013fe5
sawg: fix b delay width
2016-11-20 16:39:22 +01:00
12e39a64cf
sawg: reduce f0 oscillator width to 32
2016-11-19 17:07:07 +01:00
04813ea29b
sawg: wir up limiting, saturating addition
2016-11-19 16:12:27 +01:00
e53d0bcd5b
dsp: add limits support to SatAddMixin
2016-11-19 16:12:27 +01:00
0ee47e77ae
phaser: fix widths
2016-11-18 17:24:11 +01:00
14ddcd2e30
Revert "dsp/Delay: reset_less"
...
for now
This reverts commit 98193d6fa1
2016-11-18 15:25:42 +01:00
d678bb3fb6
phaser: update sawg tests
2016-11-18 15:23:56 +01:00
51f23feeac
dsp: implement sawg features
2016-11-17 03:20:37 +01:00
98193d6fa1
dsp/Delay: reset_less
2016-11-17 02:36:29 +01:00
424a1f8f4e
dsp: move test tools
2016-11-16 13:39:19 +01:00
b9ce2bb1f0
Merge branch 'phaser' into phaser2
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* phaser: (127 commits)
phaser: use misoc cordic
phaser: fix DDS dummy cfg
runtime: disable the Nagle algorithm entirely.
runtime: buffer RPC send packets.
runtime: don't print debug messages to the UART.
runtime: print microsecond timestamps in debug messages.
artiq_devtool: abort if build failed.
conda: bump llvmlite-artiq dep.
conda: bump llvmlite-artiq dep.
llvm_ir_generator: use !{→unconditionally.}invariant.load metadata.
artiq_devtool: more robust port forwarding.
setup: remove paramiko dependency (optional and developer-only)
artiq_devtool: implement.
artiq_compile: actually disable attribute writeback.
conda: use pythonparser 1.0.
conda: tighten pythonparser dependency (fixes #600 ).
doc: clarify kernel_invariant doc (fixes #609 ).
compiler: Emit all-kernel_invariant objects as LLVM constants
conda: update for LLVM 3.9.
add has_dds, use config flags
...
2016-11-13 17:30:37 +01:00
70a70320bd
phaser: use misoc cordic
2016-11-13 17:29:38 +01:00
ea0c304a0c
phaser2: wip
2016-10-27 01:00:42 +02:00
e981b23548
phaser: use misoc cordic
2016-10-24 19:33:23 +02:00
