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The attempt of a Micsig (A/S)TO11xx general purpose thread ... :-)

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electr_peter:
Noticed bug in Micsig STO1104E Plus. Zoom in during stop mode (10ms/div or slower) shows empty screen with fastest time bases.

Setup - single channel enabled, normal sampling, auto trigger mode, edge trigger, auto memory. Set time base to 50ms/div (70M, 100MSa/s), then stop scope and zoom-in to max level - 2ns/div does not show any data points. Sample points on 5ns/div are still visible, sample size is enough to be shown on 2ns/div.

Doing the same from 10ms/20ms/... divisions scope also get to 2ns, but no data is shown on the screen :( There are some samples for these timebases to display but for some reason it is not shown.
Both vector and dot mode works the same. There is difference on whether memory size is auto or manual, but the bug persists.

Auto memory, single channel enabled:
* 5ms/div, 70M, 1GSa/s, visible to 2ns/div
* 10ms/div, 70M, 500MSa/s, visible to 2ns/div
* 20ms/div, 70M, 250MSa/s, visible to 2ns/div
* 50ms/div, 70M, 100MSa/s, visible to 5ns/div, 2ns/div not visible
* 100ms/div, 70M, 50MSa/s, visible to 10ns/div, 5ns/div not visible
* 200ms/div, roll mode, 700k, 250kSa/s, visible to 2us/div, 1us/div and faster not visibleWith with max memory (70M) enabled manually:
* 200ms/div, roll mode, auto - 70M, 25MSa/s, visible to 20 ns/div, 10 ns/div not visible
* 500ms/div, roll mode, auto - 70M, 10MSa/s, visible to 50 ns/div, 20 ns/div not visible
* 1s/div, roll mode, auto - 70M, 5MSa/s, visible to 100 ns/div, 50 ns/div not visible
* 2s/div, roll mode, auto - 70M, 2.5MSa/s, visible to 200 ns/div, 100 ns/div not visible
This a bug in FW - sampled data is not shown in fast timebases. Can anyone confirm this issue?
@Micsig_support, is there FW update planned for STO1000E series?

electr_peter:
EDIT: Micsig performance described below is not a bug. I missed trigger source setting as pointed out by OP.

Noticed feature in Micsig STO1104E Plus. Max sample rate is 1GSa/s (with single ADC) for one channel, but only if that channel is set to trigger souce. Otherwise max sample rate for channels 2/3/4 is halved to 500MSa/s.

Test setup: auto trigger, auto memory, 5ms/div.
* Enable channel 1 - 70M, 1GSa/s, OK
* Enable channel 1 & one of channels 2/3/4 - 35M, 500MSa/s, OK
* Enable channel 1 & two of channels 2/3/4 - 17.5M, 250MSa/s, OK
* Enable channel 1 & all of channels 2/3/4 - 17.5M, 250MSa/s, OK
* Enable single channel from 2/3/4 - 35M, 500MSa/s, only half of sample rate and memory because trigger source is channel 1
* Enable 2 channels from 2/3/4 - 17.5M, 250MSa/s, only half of sample rate and memory because trigger source is channel 1
Auto memory or manual memory (max or min memory) setting does not affect this reduced sample rate for channels 2/3/4. Same logic persists going though different time divisions.

This is not a bug, it is just how scope with single ADC works. Keep in mind that trigger source keeps that channel on even when channel is turned off.

hgjdwx:
[quote author = electr _ Peter link = topic = 284599 . msg 4498147 # msg 4498147 date = 1667393496]注意到Micsig STO1104E Plus中的另一个bug。一个通道的最大采样速率为1GSa/s(使用单ADC),但仅在该通道为通道1时。否则通道2/3/4的最大采样速率仅为500MSa/s。测试设置:自动触发,自动记忆,5毫秒/格。n
* 启用通道1 - 70M,1GSa/s,正常n
* 启用通道1和通道2/3/4之一- 35M,500MSa/s,正常启用通道1和通道2/3/4中的两个- 17.5M,250MSa/s,正常[/li][/list]n
* 启用通道1和所有通道2/s 500MSa/s) n自动存储器或手动存储器(最大或最小存储器)设置不会影响通道2/3/4降低的采样速率。 尽管时间划分不同,但逻辑是一样的。n通道1获得全采样速率和全存储器,而其它通道则没有。示波器的表现就好像它有一个单一的ADC,在不同的通道设置上具有1GSa/s或500MSa/s的采样速率,非常奇怪。n[/报价]

Relates to the trigger source

electr_peter:
:palm: missed trigger source setting. As one could expect, trigger source effectively turns on channel by default even when it is not shown on screen. So there is not bug related to max sample rate and memory size. But bug with empty screen with deep zoom-in still persists.

electr_peter:

--- Quote from: electr_peter on November 01, 2022, 03:09:29 pm ---Noticed bug in Micsig STO1104E Plus. Zoom in during stop mode (10ms/div or slower) shows empty screen with fastest time bases.

Setup - single channel enabled, normal sampling, auto trigger mode, edge trigger, auto memory. Set time base to 50ms/div (70M, 100MSa/s), then stop scope and zoom-in to max level - 2ns/div does not show any data points. Sample points on 5ns/div are still visible, sample size is enough to be shown on 2ns/div.

--- End quote ---
See captions below with a display bug (described in detail above in previous post). STOP/RUN mode, regular zoom with a knob or with zoom display show the same picture.
When zooming from 50ms/div (100MSa/s, 70M) to 2 ns/div, display does not show any dots (in dots mode) or lines (in vector mode). Arrows point to sample points locations, which are 10ns apart (100MSa/s).
5ns/div mode shows 7 sample points/ 2ns/div should show 3 points, but none is visible :(

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