58 commits

Author	SHA1	Message	Date
Roger Henderson	0b571688a9	add Correlated Double Sampling (CDS) support ... Implements CDS to reduce noise by taking multiple measurements at different source PLL phase offsets and combining with cosine weighting. Firmware changes (VNA.cpp, Protocol.hpp): - Add cdsPhases field to SweepSettings (0=disabled, 2-7=phase count) - Configure N internal sweep points per user point with phase offsets - Accumulate weighted samples: result = Σ(sample[k] × cos(2π×k/N)) - Per-stage accumulators for multi-stage measurements PC application changes: - Add "CDS" checkbox to VNA acquisition toolbar - When enabled, sets cdsPhases=2 for 180° differential measurement - Tooltip explains the feature With 180° CDS (2 samples): - Sample at 0°: weight = cos(0°) = 1 - Sample at 180°: weight = cos(180°) = -1 - Combined result = Sample₀ - Sample₁₈₀ Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-01-31 23:47:02 +13:00
Jan Käberich	64791e6d4e	option to restore default values of device configuration	2025-11-15 19:22:15 +01:00
Jan Käberich	be123420db	Configuration for hardware version 0xD0	2025-10-28 12:08:13 +01:00
Jan Käberich	273dfa8037	add support for hardware version 0xD0 device status	2025-10-24 12:55:09 +02:00
Jan Käberich	6e2079fcfb	menu entry to run internal alignment if supported by hardware version	2025-10-23 12:57:49 +02:00
Jan Käberich	ed699cfd6a	hide device specific actions based on the hardware version	2025-10-23 10:16:33 +02:00
Jan Käberich	f51c6a0bce	Manual control dialog for prototype 0xD0	2025-10-15 10:23:08 +02:00
Jan Käberich	5947584e63	manual control dialog for experimental hardware version 0xE0	2025-08-31 18:49:38 +02:00
Jan Käberich	a4faeb28b0	Working dwell time feature ... - Bugfixes: - improve SPI timing in FPGA - fix markers and reduce CPU load when using markers with fast traces - New features: - dwell time configurable in acquisition toolbar - PLL settling delay in device configuration - device configuration persistent across power cycles	2025-01-03 14:36:10 +01:00
Jan Käberich	24314e2361	WIP: rework 2.LO + add dwell time	2025-01-02 19:16:53 +01:00
Jan Käberich	11612e44d5	added dialogs for hardware version 0xFE	2023-11-07 14:26:31 +01:00
Jan Käberich	99c6d77ad8	Device protocol update: support device with up to 4 ports	2023-02-23 23:04:50 +01:00
Jan Käberich	a0c45d3c56	VFF device config update	2023-02-23 15:14:49 +01:00
Jan Käberich	9b4865dceb	Renaming packet types, implementing different packet contents per hardware version	2023-02-20 13:08:31 +01:00
Andre Dunford	08fa3fa0a0	implement sweep standby configuration	2022-12-16 23:41:59 -08:00
Andre Dunford	9b38a1fc3d	implement optional device status updates	2022-12-05 22:29:33 -08:00
Andre Dunford	5bf824220e	replace USB protocol literals with named constants	2022-11-29 00:44:27 -08:00
Jan Käberich	f3eb560d61	USB logging	2022-10-31 22:06:23 +01:00
Jan Käberich	658e8252b1	improve USB protocol decoding	2022-10-28 00:14:24 +02:00
Jan Käberich	c05d248f83	interrupt safe USB send function	2022-08-21 22:20:59 +02:00
Jan Käberich	73e26a25c4	WIP: synchronization	2022-08-08 18:08:40 +02:00
Jan Käberich	58918f81c1	WIP: device synchronization	2022-08-07 03:01:22 +02:00
Jan Käberich	047f6ce981	more flexible USB protocol for VNA settings/measurements	2022-08-06 16:22:12 +02:00
Jan Käberich	74e6a439af	Compound device edit dialog	2022-08-05 18:29:31 +02:00
Jan Käberich	8492b38936	Zerospan mode for spectrum analyzer mode	2022-06-26 22:53:12 +02:00
Jan Käberich	edec4d9ec5	handle zero span data throughout the application	2022-06-22 23:50:21 +02:00
Jan Käberich	6393ae7fc3	WIP: preparation for zero span mode	2022-06-20 01:02:09 +02:00
Jan Käberich	c6ef075f4f	split device info and status protocol messages	2022-04-03 20:26:30 +02:00
Jan Käberich	5d8efd4336	user selectable IF frequencies	2022-01-15 16:11:33 +01:00
Jan Käberich	6fd2598ae8	Log option for frequency sweep	2022-01-05 16:01:51 +01:00
Jan Käberich	67489084e9	basic working power sweep	2021-07-09 22:26:44 +02:00
Jan Käberich	7bc18881a5	Allow different source PLL power per sweep point, add power range to sweep	2021-07-09 22:25:54 +02:00
Jan Käberich	75d79ccf31	Merge branch 'master' of github.com:jankae/VNA2	2021-05-01 18:35:04 +02:00
Jan Käberich	938f444c73	TCXO offset calibration	2021-05-01 18:34:53 +02:00
Jan Käberich	29b24e1ab6	Fix settings for release build	2021-04-27 20:31:56 +02:00
Jan Käberich	20b0b336bb	Using attribute packed for protocol structs	2021-02-17 18:37:50 +01:00
Jan Käberich	e3f072b307	display error flags in statusbar (overload/unlock/unlevel)	2021-02-11 22:49:47 +01:00
Jan Käberich	49e0b901fd	Optional harmonic mixing	2020-12-18 15:03:01 +01:00
Jan Käberich	00f0de43f2	Timeout handling in FPGA communication (better recovery from missing reference)	2020-12-15 18:03:29 +01:00
Jan Käberich	6d445631f0	Removed warnings	2020-11-19 17:10:47 +01:00
Jan Käberich	5b771e2a86	Tracking generator with offset + incomplete automatic source/receiver calibration	2020-11-18 19:19:29 +01:00
Jan Käberich	026fffd588	Working source and receiver calibration	2020-11-17 23:03:13 +01:00
Jan Käberich	875f3b0170	Partial source calibration dialog	2020-11-16 20:05:29 +01:00
Jan Käberich	a2389fca13	Protocol adjustment + exposing settings for DFT	2020-11-08 14:38:31 +01:00
Jan Käberich	6bc6b1d202	Speed improvements	2020-10-03 21:56:09 +02:00
Jan Käberich	926392e5b9	Bugfixes and speed improvements	2020-09-26 23:34:31 +02:00
Jan Käberich	57b4ebfb26	mitigation for peaks caused by limited fractional divider in PLLs	2020-09-20 10:13:06 +02:00
Jan Käberich	38e73365df	proof-of-concept spectrum analyzer mode	2020-09-17 15:51:20 +02:00
Jan Käberich	00244022c9	Refactoring, better code encapsulation for different operating modes	2020-09-17 09:53:52 +02:00
Jan Käberich	d9d00b8c71	Windowing option added to sampling	2020-09-16 16:13:06 +02:00