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30 rader
1.4 KiB
30 rader
1.4 KiB
<div class="Box fold">
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<h2>Screen Behavior & Refreshing</h2>
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<div class="Row v">
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<p>
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The initial screen size, title text and button labels can be configured
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in <a href="<?= url('cfg_term') ?>">Terminal Settings</a>.
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</p>
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<p>
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Screen updates are sent to the browser through a WebSocket after some time of inactivity on the communication UART
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(called "Redraw Delay"). After an update is sent, at least a time of "Redraw Cooldown" must elapse before the next
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update can be sent. Those delays are used is to avoid burdening the server with tiny updates during a large screen
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repaint. If you experience issues (broken image due to dropped bytes), try adjusting those config options. It may also
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be useful to try different baud rates.
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</p>
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<h3>UTF-8 support</h3>
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<p>
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ESPTerm supports all UTF-8 characters, but to reduce the screen buffer RAM size,
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only a small amount of unique multi-byte characters can be used at the same time
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(up to 160, depending on compile flags). Unique multi-byte characters are stored in a
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look-up table and are removed when they are no longer used on the screen. In
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rare cases it can happen that a character stays in the table after no longer
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being used (this can be noticed when the table fills up and new characters
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are not shown correctly). This is fixed by clearing the screen (`\e[2J` or `\ec`).
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</p>
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</div>
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</div>
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