Waterfall work at slow speeds

Welcome, Guest. Please Login or Register.
26. April 2024, 11:20:56

Diskussions- und Newsboard des DARC-Ortsverbandes I40 | allgemeine Kategorie | UHSDR Firmware (Moderators: DF8OE, DL1PQ) | Topic: Waterfall work at slow speeds

<- zurück vorwärts ->

Pages: [1]

Author

Topic: Waterfall work at slow speeds (Read 1826 times)

SP3OSJ
Guest

Waterfall work at slow speeds
« on: 19. April 2018, 15:10:25 »

« Last Edit: 29. June 2022, 21:07:28 by SP3OSJ »

Logged

DF8OE
Administrator

Offline

Posts: 6268

Stellvertr. OVV I40, Jugend / Nachwuchsreferent

Re:Waterfall work at slow speeds
« Reply #1 on: 19. April 2018, 15:42:23 »

Hi Artur,

you compare apples with pears. We do have magnification routines in new firmware which are based on a complete different data structure than old firmware. And you can set speed of waterfall and scope independent on new firmware to save horse power. We need much more horse power for audio interrupt (DSP functions) so transfer time to LCD must be minimized as much as possible. SPI would be too slow and you would get audio distortions because there is too much time wasted with LCD data transfer in SPI. At low speeds of course you see the "stepping" when new dataset arrives. If we would "smooth" that there will again be a big data traffic. Slowing down LCD should result in LOWER transfer of data - it makes no sense to lower the speed and stuck transferred data at the same level. So look at new LCD and be happy

vy 73
Andreas

« Last Edit: 19. April 2018, 15:44:50 by DF8OE »

Logged

Wenn der Wind des Wandels weht, nageln die einen Fenster und Türen zu und verbarrikadieren sich. Die anderen gehen nach draußen und bauen Windmühlen...
qrz.com-Seite von DF8OE

-----------------------------------------------------
>>>> Die Inhalte meiner Beiträge dürfen ohne meine explizite Erlaubnis in jedwedem Medium weiterverbreitet werden! <<<<

SP9BSL
positron
alter Hase

Offline

Posts: 443

Re:Waterfall work at slow speeds
« Reply #2 on: 20. April 2018, 09:45:36 »

The stepping of waterfall at low speed is because of lack of ram and thereof we use display of two or three lines per one line of data recorded from spectrum. Have idea how to make it smooth. Will try it next week.

Logged

73 Slawek

SP9BSL
positron
alter Hase

Offline

Posts: 443

Re:Waterfall work at slow speeds
« Reply #3 on: 07. May 2018, 11:54:30 »

Corrected display routine waits for merge. After that, please test it. For me it looks much better now.

Logged

73 Slawek

Pages: [1]

Diskussions- und Newsboard des DARC-Ortsverbandes I40 \| allgemeine Kategorie \| UHSDR Firmware (Moderators: DF8OE, DL1PQ) \| Topic: Waterfall work at slow speeds	<- zurück vorwärts ->

Jump to:

	Es wird die Verwendung von Browsern die auf der "Blink"-Engine basieren und mindestens 1024x768 Pixel Bildschirmauflösung für die beste Darstellung empfohlen
Amateurfunk	Die Beiträge sind, sofern nicht anders vermerkt, unter der folgenden Lizenz veröffentlicht: GNU Free Documentation License 1.3	verbindet!

	Diskussions- und Newsboard des DARC-Ortsverbandes I40 \| Powered by YaBB SE © 2001-2004, YaBB SE Dev Team. All Rights Reserved. - modified by Andreas Richter (DF8OE) Impressum & Disclaimer