diff --git a/configs/hymini-stm32v/README.txt b/configs/hymini-stm32v/README.txt
index 8dce52d26a..f3417be287 100755
--- a/configs/hymini-stm32v/README.txt
+++ b/configs/hymini-stm32v/README.txt
@@ -499,6 +499,8 @@ HY-Mini specific Configuration Options
 	  mode for testing. The STM32 CAN driver does support loopback mode.
 	CONFIG_CAN1_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN1 is defined.
 	CONFIG_CAN2_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN2 is defined.
+	CONFIG_CAN_REGDEBUG - If CONFIG_DEBUG is set, this will generate an
+	  dump of all CAN registers.
 
   HY-MiniSTM32V LCD Hardware Configuration  (SSD1289 controler)
 
diff --git a/configs/stm3210e-eval/README.txt b/configs/stm3210e-eval/README.txt
index 05face7f07..bdd06b0d18 100755
--- a/configs/stm3210e-eval/README.txt
+++ b/configs/stm3210e-eval/README.txt
@@ -587,6 +587,8 @@ STM3210E-EVAL-specific Configuration Options
 	  mode for testing. The STM32 CAN driver does support loopback mode.
 	CONFIG_CAN1_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN1 is defined.
 	CONFIG_CAN2_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN2 is defined.
+	CONFIG_CAN_REGDEBUG - If CONFIG_DEBUG is set, this will generate an
+	  dump of all CAN registers.
 
   STM3210E-EVAL LCD Hardware Configuration
 
diff --git a/configs/stm3210e-eval/src/up_adc.c b/configs/stm3210e-eval/src/up_adc.c
index fa05f547b5..75ac6610a1 100644
--- a/configs/stm3210e-eval/src/up_adc.c
+++ b/configs/stm3210e-eval/src/up_adc.c
@@ -76,19 +76,19 @@
 
 /* The number of ADC channels in the conversion list */
 
-#define ADC_NCHANNELS 2
+#define ADC_NCHANNELS 1
 
 /************************************************************************************
  * Private Data
  ************************************************************************************/
 
-/* Identifying number of each ADC channel: Variable Resistor and BNC_CN5 */
+/* Identifying number of each ADC channel: Variable Resistor */
 
-static const uint8_t  g_chanlist[ADC_NCHANNELS] = {14, 11};
+static const uint8_t  g_chanlist[ADC_NCHANNELS] = {14};
 
 /* Configurations of pins used byte each ADC channels */
 
-static const uint32_t g_pinlist[ADC_NCHANNELS]  = {GPIO_ADC1_IN14 , GPIO_ADC1_IN11};
+static const uint32_t g_pinlist[ADC_NCHANNELS]  = {GPIO_ADC1_IN14};
 
 /************************************************************************************
  * Private Functions
diff --git a/configs/stm3240g-eval/README.txt b/configs/stm3240g-eval/README.txt
index 78e70f4000..fc0d67beb5 100755
--- a/configs/stm3240g-eval/README.txt
+++ b/configs/stm3240g-eval/README.txt
@@ -254,6 +254,8 @@ Configuration Options:
   CONFIG_CAN1_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN1 is defined.
   CONFIG_STM32_CAN2 - Enable support for CAN1
   CONFIG_CAN2_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN2 is defined.
+  CONFIG_CAN_REGDEBUG - If CONFIG_DEBUG is set, this will generate an
+    dump of all CAN registers.
 
 STM3240G-EVAL-specific Configuration Options
 ============================================
@@ -528,6 +530,8 @@ STM3240G-EVAL-specific Configuration Options
 	  mode for testing. The STM32 CAN driver does support loopback mode.
 	CONFIG_CAN1_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN1 is defined.
 	CONFIG_CAN2_BAUD - CAN1 BAUD rate.  Required if CONFIG_STM32_CAN2 is defined.
+	CONFIG_CAN_REGDEBUG - If CONFIG_DEBUG is set, this will generate an
+	  dump of all CAN registers.
 
   STM3240G-EVAL LCD Hardware Configuration
 
diff --git a/configs/stm3240g-eval/src/stm3240g-internal.h b/configs/stm3240g-eval/src/stm3240g-internal.h
index 32b9ff577c..679951314f 100644
--- a/configs/stm3240g-eval/src/stm3240g-internal.h
+++ b/configs/stm3240g-eval/src/stm3240g-internal.h
@@ -74,10 +74,8 @@
  *   PD1   = FSMC_D3 & CAN1_TX  
  */
 
-#ifndef CONFIG_CAN_LOOPBACK
-#  if defined(CONFIG_STM32_CAN1) && defined(CONFIG_STM32_FSMC)
-#    warning "The STM3250G-EVAL will only support one of CAN1 and FSMC"
-#  endif
+#if defined(CONFIG_STM32_CAN1) && defined(CONFIG_STM32_FSMC)
+#  warning "The STM3250G-EVAL will only support one of CAN1 and FSMC"
 #endif
 
 /* The USB OTG HS ULPI bus is shared with CAN2 bus:
@@ -86,10 +84,8 @@
  *   PB5   = ULPI_D7 & CAN2_RX
  */
 
-#ifndef CONFIG_CAN_LOOPBACK
-#  if defined(CONFIG_STM32_CAN2) && defined(CONFIG_STM32_OTGHS)
-#    warning "The STM3250G-EVAL will only support one of CAN2 and USB OTG HS"
-#  endif
+#if defined(CONFIG_STM32_CAN2) && defined(CONFIG_STM32_OTGHS)
+#  warning "The STM3250G-EVAL will only support one of CAN2 and USB OTG HS"
 #endif
 
 /* STM3240G-EVAL GPIOs ******************************************************************************/