flywithu/usb-serial-for-android
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CH34x: for baud rate 307200 use special divisor+factor with lower deviation

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kai-morich
2026-10-04 20:16:51 +02:00
parent 16d84116a0
commit 377be3a2bd
2 changed files with 11 additions and 0 deletions
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.idea/markdown.xml
Generated
+8
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@@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="MarkdownSettings">
<option name="previewPanelProviderInfo">
<ProviderInfo name="Compose (experimental)" className="com.intellij.markdown.compose.preview.ComposePanelProvider" />
</option>
</component>
</project>
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Ch34xSerialDriver.java
+3
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@@ -199,6 +199,9 @@ public class Ch34xSerialDriver implements UsbSerialDriver {
if (baudRate == 921600) { if (baudRate == 921600) {
divisor = 7; divisor = 7;
factor = 0xf300; factor = 0xf300;
} else if (baudRate == 307200) {
divisor = 7;
factor = 0xd900;
} else { } else {
final long BAUDBASE_FACTOR = 1532620800; final long BAUDBASE_FACTOR = 1532620800;
final int BAUDBASE_DIVMAX = 3; final int BAUDBASE_DIVMAX = 3;