SAMA5: Delay loop calibrated; Correct sense of the RED LED

configs/sama5d3x-ek/README.txt

@@ -449,7 +449,7 @@ Buttons and LEDs
     PE24.  The red LED is also pulled high but is driven by a transistor so
     that it is illuminated when power is applied even if PE24 is not
     configured as an output.  If PE24 is configured as an output, then the
-    LCD is illuminated by a low output.
+    LCD is illuminated by a high output.
 
   These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
   defined.  In that case, the usage by the board port is defined in
@@ -772,8 +772,14 @@ Configurations
        CONFIG_BOOT_RUNFROMISRAM=y              : Run from internal SRAM
 
     STATUS:
+      2013-7-19:  This configuration (as do the others) run at 396MHz.
+        The SAMA5D3 can run at 536MHz.  I still need to figure out the
+        PLL settings to get that speed.
+
       2013-7-28:  This configuration was verified functional.
 
+      2013-7-31:  Delay loop calibrated.
+
   norboot:
     This is a little program to help debug of code in NOR flash.  It
     does the following:
@@ -788,6 +794,13 @@ Configurations
     1. This program derives from the hello configuration.  All of the
        notes there apply to this configuration as well.
 
+    STATUS:
+      2013-7-19:  This configuration (as do the others) run at 396MHz.
+        The SAMA5D3 can run at 536MHz.  I still need to figure out the
+        PLL settings to get that speed.
+
+      2013-7-31:  Delay loop calibrated.
+
   nsh:
     This configuration directory provide the NuttShell (NSH).
 
@@ -833,13 +846,22 @@ Configurations
        However, no built-in applications are selected in the base configuration.
 
     STATUS:
+      2013-7-19:  This configuration (as do the others) run at 396MHz.
+        The SAMA5D3 can run at 536MHz.  I still need to figure out the
+        PLL settings to get that speed.
+
       2013-7-31:  I have been unable to execute this configuration from NOR
         FLASH by closing the BMS jumper (J9).  As far as I can tell, this
         jumper does nothing on my board???  I have been using the norboot
         configuration to start the program in NOR FLASH (see just above).
         See "Creating and Using NORBOOT" above.
+
       2013-7-31:  This NSH configuration appears to be fully functional.
 
+      2013-7-31:  Using delay loop calibration from the hello configuration.
+        That configuration runs out of internal SRAM and, as a result, this
+        configuration needs to be recalibrated.
+
   ostest:
     This configuration directory, performs a simple OS test using
     examples/ostest.
@@ -883,15 +905,22 @@ Configurations
        BMS jumper.
 
     STATUS:
+      2013-7-19:  This configuration (as do the others) run at 396MHz.
+        The SAMA5D3 can run at 536MHz.  I still need to figure out the
+        PLL settings to get that speed.
+
       2013-7-30:  I have been unable to execute this configuration from NOR
         FLASH by closing the BMS jumper (J9).  As far as I can tell, this
         jumper does nothing on my board???  I have been using the norboot
         configuration to start the program in NOR FLASH (see just above).
         See "Creating and Using NORBOOT" above.
 
-       2013-7-31:
+       2013-7-31:  The OS test configuration is basically functional, but
-         The OS test configuration is basically functional, but takes a very
+         takes a very long time in the round-robin scheduler test computing
-         long time in the round-robin scheduler test computing prime numbers.
+         prime numbers.  This test is supposed to be slow -- like several
-         This test is suppose to be slow -- like several seconds -- but not
+         seconds -- but not many minutes.  No idea why yet.  The best guess
-         many minutes.  No idea why yet.  The best guess would be an excessive
+         would be an excessive number of context switches.
-         number of context switches.
+
+      2013-7-31:  Using delay loop calibration from the hello configuration.
+        That configuration runs out of internal SRAM and, as a result, this
+        configuration needs to be recalibrated.

configs/sama5d3x-ek/hello/defconfig

@@ -197,7 +197,7 @@ CONFIG_ARCH_STACKDUMP=y
 #
 # Board Settings
 #
-CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BOARD_LOOPSPERMSEC=49341
 # CONFIG_ARCH_CALIBRATION is not set
 CONFIG_RAM_START=0x00300000
 CONFIG_RAM_VSTART=0x00300000

configs/sama5d3x-ek/include/board.h

@@ -156,7 +156,7 @@
  *   PE24.  The red LED is also pulled high but is driven by a transistor so
  *   that it is illuminated when power is applied even if PE24 is not
  *   configured as an output.  If PE24 is configured as an output, then the
- *   LCD is illuminated by a low output.
+ *   LCD is illuminated by a high output.
  */
 
 /* LED index values for use with sam_setled() */

configs/sama5d3x-ek/norboot/defconfig

@@ -207,7 +207,7 @@ CONFIG_ARCH_STACKDUMP=y
 #
 # Board Settings
 #
-CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BOARD_LOOPSPERMSEC=49341
 # CONFIG_ARCH_CALIBRATION is not set
 CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
 CONFIG_ARCH_INTERRUPTSTACK=0

configs/sama5d3x-ek/nsh/defconfig

@@ -208,7 +208,7 @@ CONFIG_ARCH_STACKDUMP=y
 #
 # Board Settings
 #
-CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BOARD_LOOPSPERMSEC=49341
 # CONFIG_ARCH_CALIBRATION is not set
 CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
 CONFIG_ARCH_INTERRUPTSTACK=0

configs/sama5d3x-ek/ostest/defconfig

@@ -208,7 +208,7 @@ CONFIG_ARCH_STACKDUMP=y
 #
 # Board Settings
 #
-CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BOARD_LOOPSPERMSEC=49341
 # CONFIG_ARCH_CALIBRATION is not set
 CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
 CONFIG_ARCH_INTERRUPTSTACK=0

configs/sama5d3x-ek/src/sam_autoleds.c

@@ -131,8 +131,8 @@ void up_ledinit(void)
 
 void up_ledon(int led)
 {
-  bool blueoff = true;
+  bool blueoff = true;  /* Low illuminates */
-  bool redoff  = true;
+  bool redon   = false; /* High illuminates */
 
   switch (led)
     {
@@ -148,13 +148,12 @@ void up_ledon(int led)
         return;
 
       case 3:  /* LED_PANIC */
-        redoff = false;
+        redon = true;
         break;
     }
 
   sam_gpiowrite(GPIO_BLUE, blueoff);
-  sam_gpiowrite(GPIO_RED, redoff);
+  sam_gpiowrite(GPIO_RED, redon);
-
 }
 
 /****************************************************************************
@@ -165,8 +164,8 @@ void up_ledoff(int led)
 {
   if (led != 2)
     {
-      sam_gpiowrite(GPIO_BLUE, true);
+      sam_gpiowrite(GPIO_BLUE, true);  /* Low illuminates */
-      sam_gpiowrite(GPIO_RED, true);
+      sam_gpiowrite(GPIO_RED, false);  /* High illuminates */
     }
 }
 

configs/sama5d3x-ek/src/sam_userleds.c

@@ -122,10 +122,15 @@ void sam_setled(int led, bool ledon)
 
   if (led == BOARD_BLUE)
     {
+      /* Low illuminates */
+
       ledcfg = GPIO_BLUE;
+      ledon  = !ledon;
     }
   else if (led == BOARD_RED)
     {
+      /* High illuminates */
+
       ledcfg = GPIO_RED;
     }
   else
@@ -144,9 +149,13 @@ void sam_setleds(uint8_t ledset)
 {
   bool ledon;
 
-  ledon = ((ledset & BOARD_BLUE_BIT) != 0);
+  /* Low illuminates */
+
+  ledon = ((ledset & BOARD_BLUE_BIT) == 0);
   sam_gpiowrite(GPIO_BLUE, ledon);
 
+  /* High illuminates */
+
   ledon = ((ledset & BOARD_RED_BIT) != 0);
   sam_gpiowrite(GPIO_RED, ledon);
 }

configs/sama5d3x-ek/src/sama5d3x-ek.h

@@ -65,12 +65,12 @@
  *   PE24.  The red LED is also pulled high but is driven by a transistor so
  *   that it is illuminated when power is applied even if PE24 is not
  *   configured as an output.  If PE24 is configured as an output, then the
- *   LCD is illuminated by a low output.
+ *   LCD is illuminated by a high output.
  */
 
 #define GPIO_BLUE    (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_SET | \
                       GPIO_PORT_PIOE | GPIO_PIN25)
-#define GPIO_RED     (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_SET | \
+#define GPIO_RED     (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_CLEAR | \
                       GPIO_PORT_PIOE | GPIO_PIN24)
 
 /* Buttons **************************************************************************/