add baudrate 1500000

1500000bps is needed for single board computers with RK3399 CPUs

terminus-serial/src/api.ts

@@ -26,7 +26,7 @@ export interface SerialConnection {
 }
 
 export const BAUD_RATES = [
-    110, 150, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600,
+    110, 150, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 1500000,
 ]
 
 export interface SerialPortInfo {