diff --git a/configs/pcblogic-pic32mx/README.txt b/configs/pcblogic-pic32mx/README.txt
index 22815ae0c4..fa11750af5 100644
--- a/configs/pcblogic-pic32mx/README.txt
+++ b/configs/pcblogic-pic32mx/README.txt
@@ -665,15 +665,12 @@ Configuration sub-directories
 
        To enable LCD debug output:
 
-       Device Drivers:
-         CONFIG_LCD=y                            : (Needed to enable LCD debug)
-
        Build Setup:
          CONFIG_DEBUG=y                          : Enable debug features
          CONFIG_DEBUG_VERBOSE=y                  : Enable LCD debug
 
        NOTE:  At this point in time, testing of the SLCD is very limited because
        there is not much in apps/examples/slcd.  Certainly there are more bugs
-       to be found.  There are also many segment-encoded glyphs in stm32_lcd.c
-       But there is a basically functional driver with a working test setup
-       that can be extended if you want a fully functional SLCD driver.
+       to be found.  But there is a basically functional driver with a working
+       test setup that can be extended if you want a fully functional LCD1602
+       driver.
diff --git a/configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c b/configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c
index 7740048a0f..50697c587f 100644
--- a/configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c
+++ b/configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c
@@ -73,6 +73,7 @@
 #include <stdbool.h>
 #include <string.h>
 #include <semaphore.h>
+#include <ctype.h>
 #include <poll.h>
 #include <errno.h>
 #include <debug.h>
@@ -122,7 +123,6 @@
 
 /* LCD **********************************************************************/
 
-
 #define LCD_NROWS        2
 #define LCD_NCOLUMNS     16
 #define LCD_NCHARS       (LCD_NROWS * LCD_NCOLUMNS)
@@ -225,8 +225,9 @@ static struct lcd1602_2 g_lcd1602;
 static void lcd_dumpstate(FAR const char *msg)
 {
   uint8_t buffer[LCD_NCOLUMNS];
-  uint8_t row;
-  uint8_t column;
+  uint8_t ch;
+  int row;
+  int column;
 
   lcdvdbg("%s:\n", msg);
   lcdvdbg("  currow: %d curcol: %d\n",
@@ -234,10 +235,11 @@ static void lcd_dumpstate(FAR const char *msg)
 
   for (row = 0, column = 0; row < LCD_NROWS; )
     {
-      buffer[column] = lcd_readch(row, column);
+      ch = lcd_readch(row, column);
+      buffer[column] = isprint(ch) ? ch : '.';
       if (++column >= LCD_NCOLUMNS)
         {
-          lcdvdbg("  %c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
+          lcdvdbg("  [%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c]\n",
                   buffer[0],  buffer[1],  buffer[2],  buffer[3],
                   buffer[4],  buffer[5],  buffer[6],  buffer[7],
                   buffer[8],  buffer[9],  buffer[10], buffer[11],
@@ -551,9 +553,9 @@ static void lcd_action(enum slcdcode_e code, uint8_t count)
         {
           /* Don't permit movement past the bottom of the SLCD */
 
-          if (g_lcd1602.curcol < (LCD_NCOLUMNS - 1))
+          if (g_lcd1602.currow < (LCD_NCOLUMNS - 1))
             {
-              g_lcd1602.curcol++;
+              g_lcd1602.currow++;
             }
         }
         break;