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Author SHA1 Message Date
Ryan Summers
3899848815 Merge branch 'feature/digital-input-stamp' into feature/pounder-timestamping 2021-01-06 13:37:33 +01:00
Ryan Summers
96485c4229 Reverting unintended diff 2021-01-06 13:36:13 +01:00
Ryan Summers
37595405c3 Merge branch 'feature/digital-input-stamp' into feature/pounder-timestamping 2021-01-06 13:34:55 +01:00
Ryan Summers
da34756df7 Adding support for pounder v1.1 2021-01-06 13:29:19 +01:00
Ryan Summers
3332a8e927 Updating branch dependencies 2021-01-06 12:59:24 +01:00
Ryan Summers
9e7bfd4371 Adding updates after review 2021-01-06 12:24:09 +01:00
Robert Jördens
e831c7b11f
Merge pull request #213 from matthuszagh/pll 
pll update input is named "x" not "input"
 2021-01-05 09:38:02 +01:00
Matt Huszagh
a3cd17fd70 pin clippy to stable 2021-01-04 16:37:46 -08:00
Matt Huszagh
13543ce048 pll update input is named "x" not "input" 2021-01-04 11:14:27 -08:00
Ryan Summers
2b6e6f59a4 Adding comment about sample rate 2021-01-04 18:09:16 +01:00
Ryan Summers
7ecd08d86b More updates after PR review 2021-01-04 18:04:01 +01:00
Ryan Summers
67b6990fc0 Addressing PR review 2021-01-04 17:12:24 +01:00
bors[bot]
1bf71f335b
Merge #210 
210: iir_int: add optimized integer iir implementation r=jordens a=jordens



Co-authored-by: Robert Jördens <rj@quartiq.de>
 2020-12-22 15:51:39 +00:00
Robert Jördens
cc42c0c477 iir_int: add optimized integer iir implementation 2020-12-22 16:49:12 +01:00
bors[bot]
40e12e8a7d
Merge #209 
209: Rj/refine atan2 r=jordens a=jordens



Co-authored-by: Robert Jördens <rj@quartiq.de>
 2020-12-20 20:10:44 +00:00
Robert Jördens
8d9af70c19 trig/atan2: refine 
* use dynamic scaling of the inputs to get accurate ratios (effectively
  floating point) to maintain accuracy for small arguments
* this also allows shifting later and keep more bits
* use u32 ratio to keep one more bit
* merge the corner case unittests into the big test value list
* print rms, absolute and axis-relative angle
* simplify the correction expression to get rid of one multiplication
* use 5 bit for the correction constant and 15 bits for r
* least squares optimal correction constant, this lowers the max error
  below 5e-5
 2020-12-20 21:07:23 +01:00
Robert Jördens
12d5945d81 dsp/testing: simplify 2020-12-20 20:23:32 +01:00
bors[bot]
2f122d12fa
Merge #207 
207: atan r=jordens a=matthuszagh

Adds 2-argument arctangent function. Parameters and result are `i32` integers for fast computation. Only the 16 MSBs of the inputs are used (16 LSBs are discarded). The x and y inputs can range from -1 to 1, which corresponds to `i32::MIN` and `i32::MAX`, respectively. The output ranges from -pi to pi, which corresponds to `i32::MIN` and `i32::MAX`, respectively.

- [godbolt](https://rust.godbolt.org/z/nahKrT)

# Related
- #206

Co-authored-by: Matt Huszagh <huszaghmatt@gmail.com>
 2020-12-17 22:28:55 +00:00
Matt Huszagh
7e794373f4 atan2: fix output range description 2020-12-17 14:21:39 -08:00
Matt Huszagh
3125365a15 add atan2 host benchmark 2020-12-17 14:01:57 -08:00
Matt Huszagh
17cf71f22b atan2: replace min, max with x, y 2020-12-17 11:39:32 -08:00
Matt Huszagh
9c5e68ceea atan2: test min and max angle inputs 2020-12-17 11:34:39 -08:00
Matt Huszagh
6ffc42021e move atan2 test before cossin test to mimic function order 2020-12-17 10:09:12 -08:00
Matt Huszagh
09a744f59c dsp: move iir generic math functions to top-level module scope 2020-12-17 10:04:48 -08:00
Matt Huszagh
56641d5838 atan2: specify why we cannot use more than 15 bits for the atan argument 2020-12-17 10:02:35 -08:00
Matt Huszagh
1f28949bc5 atan2: store sign bits and greater of |x| and |y| 2020-12-17 09:47:39 -08:00
Matt Huszagh
cb38c3e3bd atan2: clarify sharing bits between atan argument and constant factors 2020-12-17 09:31:38 -08:00
Matt Huszagh
5717991ada atan2: result range is from i32::MIN+1 to i32::MAX 2020-12-17 09:31:18 -08:00
Matt Huszagh
d7111a3aa8 dsp/trig: let compiler infer type parameter in atan2 abs call 2020-12-17 08:04:53 -08:00
Matt Huszagh
d9d500743f simplify atan initial angle expression 2020-12-17 08:02:54 -08:00
Ryan Summers
ee8f4d849f Adding documentation about double-buffered mode to DACs 2020-12-17 14:32:53 +01:00
Ryan Summers
fb1ea765ce Updating DACs to utilize DBM 2020-12-17 14:27:47 +01:00
Ryan Summers
ec2aaecb48 Adding safety documentation 2020-12-17 14:11:28 +01:00
Ryan Summers
8fb37c2db9 Adding docs 2020-12-17 14:10:36 +01:00
Ryan Summers
438b291974 Updating DAC output format, adding DDS stream docs 2020-12-17 14:09:18 +01:00
Matt Huszagh
2ddaab8fae dsp: fix bench import path 2020-12-16 16:57:18 -08:00
Matt Huszagh
85ae70fe62 rename trig tests to delineate between cossin and atan2 2020-12-16 16:28:49 -08:00
Matt Huszagh
7c4f608206 move cossin and atan2 into the same trig file 2020-12-16 16:26:44 -08:00
Matt Huszagh
e257545321 fix formatting 2020-12-16 16:14:11 -08:00
Matt Huszagh
5d055b01a0 dsp: add atan2 2020-12-16 16:02:42 -08:00
Matt Huszagh
6d651da758 dsp: add f64 isclose testing function 2020-12-16 16:02:17 -08:00
Matt Huszagh
17f9f0750e dsp: move abs to lib.rs 2020-12-16 16:01:50 -08:00
Matt Huszagh
e89db65722 rename trig.rs -> cossin.rs 2020-12-16 15:57:47 -08:00
Ryan Summers
8e4a7c8fa9 Adding documentation for ADCs and DACs 2020-12-15 16:46:12 +01:00
Ryan Summers
fc81f3d55d Removing DMA support from DI0 timestamping 2020-12-15 14:34:14 +01:00
Ryan Summers
352884ea06 Fixing pounder timestamps after manual testing 2020-12-15 13:13:05 +01:00
bors[bot]
a71f790574
Merge #205 
205: pll: refine gains r=jordens a=jordens

this decouples frequency and phase gain

Co-authored-by: Robert Jördens <rj@quartiq.de>
 2020-12-15 11:19:34 +00:00
Robert Jördens
469c89ea70 pll: refine gains 2020-12-14 09:58:27 +01:00
bors[bot]
1425608647
Merge #202 
202: Fix/rj misc r=jordens a=jordens



Co-authored-by: Robert Jördens <rj@quartiq.de>
 2020-12-13 12:26:14 +00:00
Robert Jördens
75c4120258 cossin: buffer test data output 2020-12-13 13:24:28 +01:00