[S1] Change gps port default baudrate ti 38400

Author: JcZou

src/driver/gps/gps_ubx.c

@@ -530,7 +530,7 @@ static void gps_probe_entry(void* parameter)
 
     if (i >= CONFIGURE_RETRY_MAX) {
         set_baudrate(ubx_decoder.ubx_dev, prev_baudrate);
-        printf("UBX-GPS not detected on %s, swith back to default baudrate %d.\n", ubx_decoder.ubx_dev->parent.name, prev_baudrate);
+        printf("UBX-GPS configure failed on %s, swith back to default baudrate %d.\n", ubx_decoder.ubx_dev->parent.name, prev_baudrate);
 
         /* If configure failed, skip configure step and just wait pvt msg. since some ublox gps doesn't support ubx configure */
         ubx_decoder.use_nav_pvt = true;

target/sieon/s1/drivers/drv_usart.c

@@ -32,7 +32,7 @@
 /* config for serial_configure structure */
 #define SERIAL3_DEFAULT_CONFIG                    \
     {                                             \
-        BAUD_RATE_115200,    /* 115200 bits/s */  \
+        BAUD_RATE_38400,     /* 38400 bits/s */   \
             DATA_BITS_8,     /* 8 databits */     \
             STOP_BITS_1,     /* 1 stopbit */      \
             PARITY_NONE,     /* No parity  */     \
@@ -44,7 +44,7 @@
 
 #define SERIAL4_DEFAULT_CONFIG                    \
     {                                             \
-        BAUD_RATE_115200,    /* 115200 bits/s */  \
+        BAUD_RATE_38400,     /* 38400 bits/s */   \
             DATA_BITS_8,     /* 8 databits */     \
             STOP_BITS_1,     /* 1 stopbit */      \
             PARITY_NONE,     /* No parity  */     \