[Feature Request] Support for 3.2" & 3.5" Elecrow CYD Variants (E32R32P, E32R35T)

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<h2>[Feature Request] Support for 3.2" & 3.5" Elecrow CYD Variants (E32R32P, E32R35T)</h2>

<p>Hello Tactility Team and Community,</p>

<p>I am attempting to run Tactility OS on two common CYD Variants (E32R32P, E32R35T) 3.2" and 3.5" boards from the Elecrow/CYD family, and I believe I have identified the necessary configuration to add official support, or at least create a working community patch.</p>

<p>The current pre-compiled builds do not fully support these boards, resulting in an unresponsive touchscreen despite the display working correctly.</p>

<h3>1. Hardware Summary & Mismatched Components</h3>

<table border="1" cellpadding="5" cellspacing="0">
    <thead>
        <tr>
            <th>Board Name</th>
            <th>Screen Size</th>
            <th>Display Driver</th>
            <th>Touch Controller</th>
            <th>Current Status (Using official builds)</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>CYD E32R32P</td>
            <td>3.2" (240x320)</td>
            <td>ST7789</td>
            <td>XPT2046</td>
            <td>Display works, <b>Touch Fails</b></td>
        </tr>
        <tr>
            <td>CYD E32R35T</td>
            <td>3.5" (320x480)</td>
            <td>ST7796U</td>
            <td>XPT2046</td>
            <td>Requires new build</td>
        </tr>
    </tbody>
</table>
<h3>2. Suggested Driver Combination for E32R32P (3.2")</h3>

<p>My core hypothesis for getting the <b>CYD E32R32P</b> working is to combine the existing driver implementations that are known to work on similar boards:</p>

<ul>
    <li><b>Use the Display Driver from:</b> <code>CYD 2432S032C</code> (Known to use <b>ST7789</b> display driver).</li>
    <li><b>Use the Touch Driver Pinout from:</b> <code>CYD E32R28T</code> (Known to use the <b>XPT2046</b> touch controller).</li>
</ul>

<p>This combination should resolve the driver mismatch for the 3.2-inch board.</p>

<h3>3. Pinout Hint (Crucial for XPT2046)</h3>

<p>For the <b>XPT2046</b> touch configuration, the specific pinout for the E32R32P is likely the missing piece. Based on common configurations for these boards, the following pins might be required:</p>

<ul>
    <li><b>Touch Chip Select (CS):</b> Needs to be defined.</li>
    <li><b>Touch Interrupt (IRQ):</b> Needs to be defined.</li>
</ul>

<p>I was unable to find the direct schematic for the E32R32P, but if the development team could try mapping the XPT2046 pins from the <code>CYD E32R28T</code> to the <code>CYD 2432S032C</code> codebase, it should yield a working firmware for the 3.2-inch E32R32P.</p>

<h3>4. Call to Action</h3>

<p>Could the team please look into creating a specific build configuration for the <b>CYD E32R32P (ST7789 + XPT2046)</b>? If another community member has already compiled a custom firmware for this board, please share the configuration.</p>

<link>https://www.lcdwiki.com/Main_Page#ESP32_Display_Module</link>

<p>source for schematic and drivers details for CYD displays </p>

<p>Thank you for your incredible work on Tactility OS!</p>

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[Feature Request] Support for 3.2" & 3.5" Elecrow CYD Variants (E32R32P, E32R35T) #373