diff --git a/stmhal/Makefile b/stmhal/Makefile
index 67c1ebcb428345937568cc13806685eae9eea857..0f3fe46cfabf8ead4700d26e1243a97c5a5a766b 100644
--- a/stmhal/Makefile
+++ b/stmhal/Makefile
@@ -29,7 +29,7 @@ INC += -I$(FATFS_DIR)/src
 CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion
 CFLAGS = $(INC) -Wall -Werror -ansi -std=gnu99 $(CFLAGS_CORTEX_M4) $(COPT)
 
-BOARD ?= PYBv10
+BOARD ?= PYBV10
 ifeq ($(wildcard boards/$(BOARD)/.),)
 $(error Invalid BOARD specified)
 endif
diff --git a/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h b/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
index 948b886819978e12786a553531e876d427844dd5..a01d37aea84ab999f1ad74dec7866f76200a2a46 100644
--- a/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
+++ b/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
@@ -19,19 +19,16 @@
 #define MICROPY_HW_ENABLE_DAC       (0)
 
 // USRSW is pulled low. Pressing the button makes the input go high.
-#define USRSW_PIN           (pin_B11)
-#define USRSW_PULL          (GPIO_NOPULL)
-#define USRSW_EXTI_MODE     (GPIO_MODE_IT_RISING)
-#define USRSW_PRESSED       (1)
-
-/* LED */
-#define PYB_LED1        (pin_A10)   // Blue LED
-#define PYB_LED2        (pin_C13)   // White LED (aka Power)
-#define PYB_LED3        (pin_A10)   // Same as Led(1)
-#define PYB_LED4        (pin_C13)   // Same as Led(2)
-
-#define PYB_OTYPE       (GPIO_MODE_OUTPUT_PP)
-
-#define PYB_LED_ON(pin)  (pin->gpio->BSRRL = pin->pin_mask)
-#define PYB_LED_OFF(pin) (pin->gpio->BSRRH = pin->pin_mask)
-
+#define MICROPY_HW_USRSW_PIN        (pin_B11)
+#define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_RISING)
+#define MICROPY_HW_USRSW_PRESSED    (1)
+
+// LEDs
+#define MICROPY_HW_LED1             (pin_A10)   // Blue LED
+#define MICROPY_HW_LED2             (pin_C13)   // White LED (aka Power)
+#define MICROPY_HW_LED3             (pin_A10)   // Same as Led(1)
+#define MICROPY_HW_LED4             (pin_C13)   // Same as Led(2)
+#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
+#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRL = pin->pin_mask)
+#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRH = pin->pin_mask)
diff --git a/stmhal/boards/PYBOARD3/mpconfigboard.h b/stmhal/boards/PYBOARD3/mpconfigboard.h
deleted file mode 100644
index 1cd1d948188ec9ea529524617ef8f76833c90e8b..0000000000000000000000000000000000000000
--- a/stmhal/boards/PYBOARD3/mpconfigboard.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#define PYBOARD3
-
-#define MICROPY_HW_BOARD_NAME       "PYBv3"
-
-#define MICROPY_HW_HAS_SWITCH       (1)
-#define MICROPY_HW_HAS_SDCARD       (1)
-#define MICROPY_HW_HAS_MMA7660      (1)
-#define MICROPY_HW_HAS_LIS3DSH      (0)
-#define MICROPY_HW_HAS_LCD          (0)
-#define MICROPY_HW_HAS_WLAN         (0)
-#define MICROPY_HW_ENABLE_RNG       (1)
-#define MICROPY_HW_ENABLE_RTC       (1)
-#define MICROPY_HW_ENABLE_TIMER     (1)
-#define MICROPY_HW_ENABLE_SERVO     (1)
-#define MICROPY_HW_ENABLE_DAC       (0)
-
-// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
-#define USRSW_PIN           (pin_A13)
-#define USRSW_PULL          (GPIO_PULLUP)
-#define USRSW_EXTI_MODE     (GPIO_MODE_IT_FALLING)
-#define USRSW_PRESSED       (0)
-
-/* LED */
-#define PYB_LED1        (pin_A8)  // R1 - red
-#define PYB_LED2        (pin_A10) // R2 - red
-#define PYB_LED3        (pin_C4)  // G1 - green
-#define PYB_LED4        (pin_C5)  // G2 - green
-
-#define PYB_OTYPE       (GPIO_MODE_OUTPUT_PP)
-
-#define PYB_LED_ON(pin)  (pin->gpio->BSRRH = pin->pin_mask)
-#define PYB_LED_OFF(pin) (pin->gpio->BSRRL = pin->pin_mask)
diff --git a/stmhal/boards/PYBOARD4/mpconfigboard.h b/stmhal/boards/PYBOARD4/mpconfigboard.h
deleted file mode 100644
index 9a046ffffa51c21f28400c9f72091f7038e9ab19..0000000000000000000000000000000000000000
--- a/stmhal/boards/PYBOARD4/mpconfigboard.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#define PYBOARD4
-
-#define MICROPY_HW_BOARD_NAME       "PYBv4"
-
-#define MICROPY_HW_HAS_SWITCH       (1)
-#define MICROPY_HW_HAS_SDCARD       (1)
-#define MICROPY_HW_HAS_MMA7660      (1)
-#define MICROPY_HW_HAS_LIS3DSH      (0)
-#define MICROPY_HW_HAS_LCD          (1)
-#define MICROPY_HW_HAS_WLAN         (0)
-#define MICROPY_HW_ENABLE_RNG       (1)
-#define MICROPY_HW_ENABLE_RTC       (1)
-#define MICROPY_HW_ENABLE_TIMER     (1)
-#define MICROPY_HW_ENABLE_SERVO     (1)
-#define MICROPY_HW_ENABLE_DAC       (1)
-
-// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
-#define USRSW_PIN           (pin_B3)
-#define USRSW_PULL          (GPIO_PULLUP)
-#define USRSW_EXTI_MODE     (GPIO_MODE_IT_FALLING)
-#define USRSW_PRESSED       (0)
-
-/* LED */
-#define PYB_LED1        (pin_A13) // red
-#define PYB_LED2        (pin_A14) // green
-#define PYB_LED3        (pin_A15) // yellow
-#define PYB_LED4        (pin_B4)  // blue
-
-#define PYB_OTYPE       (GPIO_MODE_OUTPUT_PP)
-
-#define PYB_LED_ON(pin)  (pin->gpio->BSRRL = pin->pin_mask)
-#define PYB_LED_OFF(pin) (pin->gpio->BSRRH = pin->pin_mask)
-
diff --git a/stmhal/boards/PYBV10/mpconfigboard.h b/stmhal/boards/PYBV10/mpconfigboard.h
new file mode 100644
index 0000000000000000000000000000000000000000..9386c04a2de27950c03b61e39f1f6d7de703f3b7
--- /dev/null
+++ b/stmhal/boards/PYBV10/mpconfigboard.h
@@ -0,0 +1,35 @@
+#define PYBV10
+
+#define MICROPY_HW_BOARD_NAME       "PYBv1.0"
+
+#define MICROPY_HW_HAS_SWITCH       (1)
+#define MICROPY_HW_HAS_SDCARD       (1)
+#define MICROPY_HW_HAS_MMA7660      (1)
+#define MICROPY_HW_HAS_LIS3DSH      (0)
+#define MICROPY_HW_HAS_LCD          (1)
+#define MICROPY_HW_HAS_WLAN         (0)
+#define MICROPY_HW_ENABLE_RNG       (1)
+#define MICROPY_HW_ENABLE_RTC       (1)
+#define MICROPY_HW_ENABLE_TIMER     (1)
+#define MICROPY_HW_ENABLE_SERVO     (1)
+#define MICROPY_HW_ENABLE_DAC       (1)
+
+// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
+#define MICROPY_HW_USRSW_PIN        (pin_B3)
+#define MICROPY_HW_USRSW_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
+#define MICROPY_HW_USRSW_PRESSED    (0)
+
+// The pyboard has 4 LEDs
+#define MICROPY_HW_LED1             (pin_A13) // red
+#define MICROPY_HW_LED2             (pin_A14) // green
+#define MICROPY_HW_LED3             (pin_A15) // yellow
+#define MICROPY_HW_LED4             (pin_B4)  // blue
+#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
+#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRL = pin->pin_mask)
+#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRH = pin->pin_mask)
+
+// SD card detect switch
+#define MICROPY_HW_SDCARD_DETECT_PIN        (pin_A8)
+#define MICROPY_HW_SDCARD_DETECT_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_SDCARD_DETECT_PRESENT    (GPIO_PIN_RESET)
diff --git a/stmhal/boards/PYBv10/pins.csv b/stmhal/boards/PYBV10/pins.csv
similarity index 98%
rename from stmhal/boards/PYBv10/pins.csv
rename to stmhal/boards/PYBV10/pins.csv
index 2ca7fef184b4f6cbe09bd63288cc92fac12ecfd3..34d96c8dd6c8c5dd54ed7ab628108fd0fb4410aa 100644
--- a/stmhal/boards/PYBv10/pins.csv
+++ b/stmhal/boards/PYBV10/pins.csv
@@ -43,3 +43,4 @@ LED_RED,PA13
 LED_GREEN,PA14
 LED_YELLOW,PA15
 SW,PB3
+SD,PA8
diff --git a/stmhal/boards/PYBOARD4/stm32f4xx_hal_conf.h b/stmhal/boards/PYBV10/stm32f4xx_hal_conf.h
similarity index 100%
rename from stmhal/boards/PYBOARD4/stm32f4xx_hal_conf.h
rename to stmhal/boards/PYBV10/stm32f4xx_hal_conf.h
diff --git a/stmhal/boards/PYBV3/mpconfigboard.h b/stmhal/boards/PYBV3/mpconfigboard.h
new file mode 100644
index 0000000000000000000000000000000000000000..f47a01bc4cfe63208168a3164af6a63a4ee27d5a
--- /dev/null
+++ b/stmhal/boards/PYBV3/mpconfigboard.h
@@ -0,0 +1,35 @@
+#define PYBV3
+
+#define MICROPY_HW_BOARD_NAME       "PYBv3"
+
+#define MICROPY_HW_HAS_SWITCH       (1)
+#define MICROPY_HW_HAS_SDCARD       (1)
+#define MICROPY_HW_HAS_MMA7660      (1)
+#define MICROPY_HW_HAS_LIS3DSH      (0)
+#define MICROPY_HW_HAS_LCD          (0)
+#define MICROPY_HW_HAS_WLAN         (0)
+#define MICROPY_HW_ENABLE_RNG       (1)
+#define MICROPY_HW_ENABLE_RTC       (1)
+#define MICROPY_HW_ENABLE_TIMER     (1)
+#define MICROPY_HW_ENABLE_SERVO     (1)
+#define MICROPY_HW_ENABLE_DAC       (0)
+
+// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
+#define MICROPY_HW_USRSW_PIN        (pin_A13)
+#define MICROPY_HW_USRSW_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
+#define MICROPY_HW_USRSW_PRESSED    (0)
+
+// LEDs
+#define MICROPY_HW_LED1             (pin_A8)  // R1 - red
+#define MICROPY_HW_LED2             (pin_A10) // R2 - red
+#define MICROPY_HW_LED3             (pin_C4)  // G1 - green
+#define MICROPY_HW_LED4             (pin_C5)  // G2 - green
+#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
+#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRH = pin->pin_mask)
+#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRL = pin->pin_mask)
+
+// SD card detect switch
+#define MICROPY_HW_SDCARD_DETECT_PIN        (pin_C13)
+#define MICROPY_HW_SDCARD_DETECT_PULL       (GPIO_PULLDOWN)
+#define MICROPY_HW_SDCARD_DETECT_PRESENT    (GPIO_PIN_SET)
diff --git a/stmhal/boards/PYBOARD3/pins.csv b/stmhal/boards/PYBV3/pins.csv
similarity index 97%
rename from stmhal/boards/PYBOARD3/pins.csv
rename to stmhal/boards/PYBV3/pins.csv
index cc07b1544575ed16a26399a3ded3b347e1f38ce1..cce8a9e1119f81ed1b20246f27fe3c6d250fa613 100644
--- a/stmhal/boards/PYBOARD3/pins.csv
+++ b/stmhal/boards/PYBV3/pins.csv
@@ -34,4 +34,4 @@ LED_R2,PA10
 LED_G1,PC4
 LED_G2,PC5
 SW,PA13
-
+SD,PC13
diff --git a/stmhal/boards/PYBv10/stm32f4xx_hal_conf.h b/stmhal/boards/PYBV3/stm32f4xx_hal_conf.h
similarity index 100%
rename from stmhal/boards/PYBv10/stm32f4xx_hal_conf.h
rename to stmhal/boards/PYBV3/stm32f4xx_hal_conf.h
diff --git a/stmhal/boards/PYBV4/mpconfigboard.h b/stmhal/boards/PYBV4/mpconfigboard.h
new file mode 100644
index 0000000000000000000000000000000000000000..1846491c3aa9eddbb3a040ed9c252220ac83f66a
--- /dev/null
+++ b/stmhal/boards/PYBV4/mpconfigboard.h
@@ -0,0 +1,35 @@
+#define PYBV4
+
+#define MICROPY_HW_BOARD_NAME       "PYBv4"
+
+#define MICROPY_HW_HAS_SWITCH       (1)
+#define MICROPY_HW_HAS_SDCARD       (1)
+#define MICROPY_HW_HAS_MMA7660      (1)
+#define MICROPY_HW_HAS_LIS3DSH      (0)
+#define MICROPY_HW_HAS_LCD          (1)
+#define MICROPY_HW_HAS_WLAN         (0)
+#define MICROPY_HW_ENABLE_RNG       (1)
+#define MICROPY_HW_ENABLE_RTC       (1)
+#define MICROPY_HW_ENABLE_TIMER     (1)
+#define MICROPY_HW_ENABLE_SERVO     (1)
+#define MICROPY_HW_ENABLE_DAC       (1)
+
+// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
+#define MICROPY_HW_USRSW_PIN        (pin_B3)
+#define MICROPY_HW_USRSW_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
+#define MICROPY_HW_USRSW_PRESSED    (0)
+
+// LEDs
+#define MICROPY_HW_LED1             (pin_A13) // red
+#define MICROPY_HW_LED2             (pin_A14) // green
+#define MICROPY_HW_LED3             (pin_A15) // yellow
+#define MICROPY_HW_LED4             (pin_B4)  // blue
+#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
+#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRL = pin->pin_mask)
+#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRH = pin->pin_mask)
+
+// SD card detect switch
+#define MICROPY_HW_SDCARD_DETECT_PIN        (pin_A8)
+#define MICROPY_HW_SDCARD_DETECT_PULL       (GPIO_PULLUP)
+#define MICROPY_HW_SDCARD_DETECT_PRESENT    (GPIO_PIN_RESET)
diff --git a/stmhal/boards/PYBOARD4/pins.csv b/stmhal/boards/PYBV4/pins.csv
similarity index 98%
rename from stmhal/boards/PYBOARD4/pins.csv
rename to stmhal/boards/PYBV4/pins.csv
index 2ca7fef184b4f6cbe09bd63288cc92fac12ecfd3..34d96c8dd6c8c5dd54ed7ab628108fd0fb4410aa 100644
--- a/stmhal/boards/PYBOARD4/pins.csv
+++ b/stmhal/boards/PYBV4/pins.csv
@@ -43,3 +43,4 @@ LED_RED,PA13
 LED_GREEN,PA14
 LED_YELLOW,PA15
 SW,PB3
+SD,PA8
diff --git a/stmhal/boards/PYBV4/stm32f4xx_hal_conf.h b/stmhal/boards/PYBV4/stm32f4xx_hal_conf.h
new file mode 100644
index 0000000000000000000000000000000000000000..315c24dc67cddbbf116556b0b0aea5da6af884d0
--- /dev/null
+++ b/stmhal/boards/PYBV4/stm32f4xx_hal_conf.h
@@ -0,0 +1,393 @@
+/**
+  ******************************************************************************
+  * @file    stm32f4xx_hal_conf.h
+  * @author  MCD Application Team
+  * @version V1.0.1
+  * @date    26-February-2014
+  * @brief   HAL configuration file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_HAL_CONF_H
+#define __STM32F4xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+#define STM32F405xx
+#define USE_USB_FS
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver 
+  */
+#define HAL_MODULE_ENABLED
+#define HAL_ADC_MODULE_ENABLED
+#define HAL_CAN_MODULE_ENABLED
+#define HAL_CRC_MODULE_ENABLED
+#define HAL_CRYP_MODULE_ENABLED
+#define HAL_DAC_MODULE_ENABLED
+#define HAL_DCMI_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+/* #define HAL_DMA2D_MODULE_ENABLED */
+#define HAL_ETH_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_NAND_MODULE_ENABLED
+#define HAL_NOR_MODULE_ENABLED
+#define HAL_PCCARD_MODULE_ENABLED
+#define HAL_SRAM_MODULE_ENABLED
+/* #define HAL_SDRAM_MODULE_ENABLED */
+#define HAL_HASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+#define HAL_I2S_MODULE_ENABLED
+#define HAL_IWDG_MODULE_ENABLED
+#define HAL_LTDC_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_RNG_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
+/* #define HAL_SAI_MODULE_ENABLED */
+#define HAL_SD_MODULE_ENABLED
+#define HAL_SPI_MODULE_ENABLED
+#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+#define HAL_USART_MODULE_ENABLED
+#define HAL_IRDA_MODULE_ENABLED
+#define HAL_SMARTCARD_MODULE_ENABLED
+#define HAL_WWDG_MODULE_ENABLED
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_PCD_MODULE_ENABLED
+#define HAL_HCD_MODULE_ENABLED
+
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).  
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL). 
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief External clock source for I2S peripheral
+  *        This value is used by the I2S HAL module to compute the I2S clock source 
+  *        frequency, this source is inserted directly through I2S_CKIN pad. 
+  */
+#if !defined  (EXTERNAL_CLOCK_VALUE)
+  #define EXTERNAL_CLOCK_VALUE    ((uint32_t)12288000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */     
+#define  VDD_VALUE                    ((uint32_t)3300) /*!< Value of VDD in mv */
+#define  USE_RTOS                     0
+#define  PREFETCH_ENABLE              1
+#define  INSTRUCTION_CACHE_ENABLE     1
+#define  DATA_CACHE_ENABLE            1
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1 */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0   2
+#define MAC_ADDR1   0
+#define MAC_ADDR2   0
+#define MAC_ADDR3   0
+#define MAC_ADDR4   0
+#define MAC_ADDR5   0
+
+/* Definition of the Ethernet driver buffers size and count */   
+#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
+#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
+#define ETH_RXBUFNB                    ((uint32_t)4)       /* 4 Rx buffers of size ETH_RX_BUF_SIZE  */
+#define ETH_TXBUFNB                    ((uint32_t)4)       /* 4 Tx buffers of size ETH_TX_BUF_SIZE  */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848 PHY Address*/ 
+#define DP83848_PHY_ADDRESS             0x01
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/ 
+#define PHY_RESET_DELAY                 ((uint32_t)0x000000FF)
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY                ((uint32_t)0x00000FFF)
+
+#define PHY_READ_TO                     ((uint32_t)0x0000FFFF)
+#define PHY_WRITE_TO                    ((uint32_t)0x0000FFFF)
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR                         ((uint16_t)0x00)    /*!< Transceiver Basic Control Register   */
+#define PHY_BSR                         ((uint16_t)0x01)    /*!< Transceiver Basic Status Register    */
+ 
+#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
+#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
+#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
+#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
+#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
+#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
+#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
+
+#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
+#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
+#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
+  
+/* Section 4: Extended PHY Registers */
+
+#define PHY_SR                          ((uint16_t)0x10)    /*!< PHY status register Offset                      */
+#define PHY_MICR                        ((uint16_t)0x11)    /*!< MII Interrupt Control Register                  */
+#define PHY_MISR                        ((uint16_t)0x12)    /*!< MII Interrupt Status and Misc. Control Register */
+ 
+#define PHY_LINK_STATUS                 ((uint16_t)0x0001)  /*!< PHY Link mask                                   */
+#define PHY_SPEED_STATUS                ((uint16_t)0x0002)  /*!< PHY Speed mask                                  */
+#define PHY_DUPLEX_STATUS               ((uint16_t)0x0004)  /*!< PHY Duplex mask                                 */
+
+#define PHY_MICR_INT_EN                 ((uint16_t)0x0002)  /*!< PHY Enable interrupts                           */
+#define PHY_MICR_INT_OE                 ((uint16_t)0x0001)  /*!< PHY Enable output interrupt events              */
+
+#define PHY_MISR_LINK_INT_EN            ((uint16_t)0x0020)  /*!< Enable Interrupt on change of link status       */
+#define PHY_LINK_INTERRUPT              ((uint16_t)0x2000)  /*!< PHY link status interrupt mask                  */
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file 
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+  #include "stm32f4xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+  #include "stm32f4xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f4xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+   
+#ifdef HAL_CORTEX_MODULE_ENABLED
+  #include "stm32f4xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+  #include "stm32f4xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+  #include "stm32f4xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+  #include "stm32f4xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+  #include "stm32f4xx_hal_cryp.h" 
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DMA2D_MODULE_ENABLED
+  #include "stm32f4xx_hal_dma2d.h"
+#endif /* HAL_DMA2D_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+  #include "stm32f4xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_DCMI_MODULE_ENABLED
+  #include "stm32f4xx_hal_dcmi.h"
+#endif /* HAL_DCMI_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+  #include "stm32f4xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+  #include "stm32f4xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+ 
+#ifdef HAL_SRAM_MODULE_ENABLED
+  #include "stm32f4xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+  #include "stm32f4xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+  #include "stm32f4xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+  #include "stm32f4xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */ 
+  
+#ifdef HAL_SDRAM_MODULE_ENABLED
+  #include "stm32f4xx_hal_sdram.h"
+#endif /* HAL_SDRAM_MODULE_ENABLED */      
+
+#ifdef HAL_HASH_MODULE_ENABLED
+ #include "stm32f4xx_hal_hash.h"
+#endif /* HAL_HASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f4xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LTDC_MODULE_ENABLED
+ #include "stm32f4xx_hal_ltdc.h"
+#endif /* HAL_LTDC_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f4xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32f4xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f4xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32f4xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f4xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f4xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f4xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f4xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f4xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f4xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f4xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f4xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f4xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+   
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed. 
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0)
+#endif /* USE_FULL_ASSERT */    
+    
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_CONF_H */
+ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/stmhal/boards/PYBv10/mpconfigboard.h b/stmhal/boards/PYBv10/mpconfigboard.h
deleted file mode 100644
index f5ebe25cc4d9b346ec383bb480d49f2c047620dc..0000000000000000000000000000000000000000
--- a/stmhal/boards/PYBv10/mpconfigboard.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#define PYBv10
-
-#define MICROPY_HW_BOARD_NAME       "PYBv1.0"
-
-#define MICROPY_HW_HAS_SWITCH       (1)
-#define MICROPY_HW_HAS_SDCARD       (1)
-#define MICROPY_HW_HAS_MMA7660      (1)
-#define MICROPY_HW_HAS_LIS3DSH      (0)
-#define MICROPY_HW_HAS_LCD          (1)
-#define MICROPY_HW_HAS_WLAN         (0)
-#define MICROPY_HW_ENABLE_RNG       (1)
-#define MICROPY_HW_ENABLE_RTC       (1)
-#define MICROPY_HW_ENABLE_TIMER     (1)
-#define MICROPY_HW_ENABLE_SERVO     (1)
-#define MICROPY_HW_ENABLE_DAC       (1)
-
-// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
-#define USRSW_PIN           (pin_B3)
-#define USRSW_PULL          (GPIO_PULLUP)
-#define USRSW_EXTI_MODE     (GPIO_MODE_IT_FALLING)
-#define USRSW_PRESSED       (0)
-
-/* LED */
-#define PYB_LED1        (pin_A13) // red
-#define PYB_LED2        (pin_A14) // green
-#define PYB_LED3        (pin_A15) // yellow
-#define PYB_LED4        (pin_B4)  // blue
-
-#define PYB_OTYPE       (GPIO_MODE_OUTPUT_PP)
-
-#define PYB_LED_ON(pin)  (pin->gpio->BSRRL = pin->pin_mask)
-#define PYB_LED_OFF(pin) (pin->gpio->BSRRH = pin->pin_mask)
-
diff --git a/stmhal/boards/STM32F4DISC/mpconfigboard.h b/stmhal/boards/STM32F4DISC/mpconfigboard.h
index 2a58b27bdf3626dbec3f50c46ab4e29d1b9eb656..3bfdfbfb804e520ac02c87569e00c455900bf41d 100644
--- a/stmhal/boards/STM32F4DISC/mpconfigboard.h
+++ b/stmhal/boards/STM32F4DISC/mpconfigboard.h
@@ -15,19 +15,16 @@
 #define MICROPY_HW_ENABLE_DAC       (0)
 
 // USRSW is pulled low. Pressing the button makes the input go high.
-#define USRSW_PIN           (pin_A0)
-#define USRSW_PULL          (GPIO_NOPULL)
-#define USRSW_EXTI_MODE     (GPIO_MODE_IT_RISING)
-#define USRSW_PRESSED       (1)
-
-/* LED */
-#define PYB_LED1        (pin_D14) // red
-#define PYB_LED2        (pin_D12) // green
-#define PYB_LED3        (pin_D13) // orange
-#define PYB_LED4        (pin_D15) // blue
-
-#define PYB_OTYPE       (GPIO_MODE_OUTPUT_PP)
-
-#define PYB_LED_ON(pin)  (pin->gpio->BSRRL = pin->pin_mask)
-#define PYB_LED_OFF(pin) (pin->gpio->BSRRH = pin->pin_mask)
+#define MICROPY_HW_USRSW_PIN        (pin_A0)
+#define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_RISING)
+#define MICROPY_HW_USRSW_PRESSED    (1)
 
+// LEDs
+#define MICROPY_HW_LED1             (pin_D14) // red
+#define MICROPY_HW_LED2             (pin_D12) // green
+#define MICROPY_HW_LED3             (pin_D13) // orange
+#define MICROPY_HW_LED4             (pin_D15) // blue
+#define MICROPY_HW_LED_OTYPE        (GPIO_MODE_OUTPUT_PP)
+#define MICROPY_HW_LED_ON(pin)      (pin->gpio->BSRRL = pin->pin_mask)
+#define MICROPY_HW_LED_OFF(pin)     (pin->gpio->BSRRH = pin->pin_mask)
diff --git a/stmhal/diskio.c b/stmhal/diskio.c
index 4d6f998f55140bd60586234e89c5399b45c70e23..0c67a23d68730d8e22b0de32f0b370a84495df28 100644
--- a/stmhal/diskio.c
+++ b/stmhal/diskio.c
@@ -41,12 +41,14 @@ DSTATUS disk_initialize (
             storage_init();
             return 0;
 
+#if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
             if (!sdcard_power_on()) {
                 return STA_NODISK;
             }
             // TODO return STA_PROTECT if SD card is read only
             return 0;
+#endif
     }
 
     return STA_NOINIT;
@@ -65,9 +67,11 @@ DSTATUS disk_status (
             // flash is ready
             return 0;
 
+#if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
             // TODO return STA_PROTECT if SD card is read only
             return 0;
+#endif
     }
 
     return STA_NOINIT;
@@ -93,11 +97,13 @@ DRESULT disk_read (
             }
             return RES_OK;
 
+#if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
             if (!sdcard_read_blocks(buff, sector, count)) {
                 return RES_ERROR;
             }
             return RES_OK;
+#endif
     }
 
     return RES_PARERR;
@@ -124,11 +130,13 @@ DRESULT disk_write (
             }
             return RES_OK;
 
+#if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
             if (!sdcard_write_blocks(buff, sector, count)) {
                 return RES_ERROR;
             }
             return RES_OK;
+#endif
     }
 
     return RES_PARERR;
@@ -160,6 +168,7 @@ DRESULT disk_ioctl (
             }
             break;
 
+#if MICROPY_HW_HAS_SDCARD
         case PD_SDCARD:
             switch (cmd) {
                 case CTRL_SYNC:
@@ -170,6 +179,7 @@ DRESULT disk_ioctl (
                     return RES_OK;
             }
             break;
+#endif
     }
 
     return RES_PARERR;
diff --git a/stmhal/lcd.c b/stmhal/lcd.c
index c5952fa48c0cca138f6f05c269d73b4a48fd9cb7..e2b9e229767f0ca8ccbb3dd5c347af57c055ff42 100644
--- a/stmhal/lcd.c
+++ b/stmhal/lcd.c
@@ -17,14 +17,14 @@
 #include "font_petme128_8x8.h"
 #include "lcd.h"
 
-#if defined(PYBOARD3)
+#if defined(PYBV3)
 #define PYB_LCD_PORT        (GPIOA)
 #define PYB_LCD_CS1_PIN     (GPIO_PIN_0)
 #define PYB_LCD_RST_PIN     (GPIO_PIN_1)
 #define PYB_LCD_A0_PIN      (GPIO_PIN_2)
 #define PYB_LCD_SCL_PIN     (GPIO_PIN_3)
 #define PYB_LCD_SI_PIN      (GPIO_PIN_4)
-#elif defined(PYBOARD4) || defined(PYBv10)
+#elif defined(PYBV4) || defined(PYBV10)
 // X position
 #define PYB_LCD_PORT       (GPIOA)
 #define PYB_LCD_CS1_PIN    (GPIO_PIN_2) // X3
diff --git a/stmhal/led.c b/stmhal/led.c
index 5ff50fbb88192fb7872d534e72331e02b41c5d88..506e82e548cda5c3732164ad32fed1fbaa9b06df 100644
--- a/stmhal/led.c
+++ b/stmhal/led.c
@@ -15,13 +15,13 @@
 #include "build/pins.h"
 
 static const pin_obj_t *gLed[] = {
-    &PYB_LED1,
-#if defined(PYB_LED2)
-    &PYB_LED2,
-#if defined(PYB_LED3)
-    &PYB_LED3,
-#if defined(PYB_LED4)
-    &PYB_LED4,
+    &MICROPY_HW_LED1,
+#if defined(MICROPY_HW_LED2)
+    &MICROPY_HW_LED2,
+#if defined(MICROPY_HW_LED3)
+    &MICROPY_HW_LED3,
+#if defined(MICROPY_HW_LED4)
+    &MICROPY_HW_LED4,
 #endif
 #endif
 #endif
@@ -34,27 +34,27 @@ void led_init(void) {
 
     /* Configure I/O speed, mode, output type and pull */
     GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
-    GPIO_InitStructure.Mode = PYB_OTYPE;
+    GPIO_InitStructure.Mode = MICROPY_HW_LED_OTYPE;
     GPIO_InitStructure.Pull = GPIO_NOPULL;
 
     /* Turn off LEDs and initialize */
     for (int led = 0; led < NUM_LEDS; led++) {
-        PYB_LED_OFF(gLed[led]);
+        MICROPY_HW_LED_OFF(gLed[led]);
         GPIO_InitStructure.Pin = gLed[led]->pin_mask;
         HAL_GPIO_Init(gLed[led]->gpio, &GPIO_InitStructure);
     }
 
-#if defined(PYBOARD4) || defined(PYBv10)
+#if defined(PYBV4) || defined(PYBV10)
     // LED4 (blue) is on PB4 which is TIM3_CH1
     // we use PWM on this channel to fade the LED
 
     // GPIO configuration
-    GPIO_InitStructure.Pin = PYB_LED4.pin_mask;
+    GPIO_InitStructure.Pin = MICROPY_HW_LED4.pin_mask;
     GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
     GPIO_InitStructure.Pull = GPIO_NOPULL;
     GPIO_InitStructure.Alternate = GPIO_AF2_TIM3;
-    HAL_GPIO_Init(PYB_LED4.gpio, &GPIO_InitStructure);
+    HAL_GPIO_Init(MICROPY_HW_LED4.gpio, &GPIO_InitStructure);
 
     // PWM mode configuration
     TIM_OC_InitTypeDef oc_init;
@@ -73,7 +73,7 @@ void led_state(pyb_led_t led, int state) {
     if (led < 1 || led > NUM_LEDS) {
         return;
     }
-#if defined(PYBOARD4) || defined(PYBv10)
+#if defined(PYBV4) || defined(PYBV10)
     if (led == 4) {
         if (state) {
             TIM3->CCR1 = 0xffff;
@@ -87,10 +87,10 @@ void led_state(pyb_led_t led, int state) {
     //printf("led_state(%d,%d)\n", led, state);
     if (state == 0) {
         // turn LED off
-        PYB_LED_OFF(led_pin);
+        MICROPY_HW_LED_OFF(led_pin);
     } else {
         // turn LED on
-        PYB_LED_ON(led_pin);
+        MICROPY_HW_LED_ON(led_pin);
     }
 }
 
@@ -99,7 +99,7 @@ void led_toggle(pyb_led_t led) {
         return;
     }
 
-#if defined(PYBOARD4) || defined(PYBv10)
+#if defined(PYBV4) || defined(PYBV10)
     if (led == 4) {
         if (TIM3->CCR1 == 0) {
             TIM3->CCR1 = 0xffff;
@@ -129,7 +129,7 @@ int led_get_intensity(pyb_led_t led) {
         return 0;
     }
 
-#if defined(PYBOARD4) || defined(PYBv10)
+#if defined(PYBV4) || defined(PYBV10)
     if (led == 4) {
         machine_uint_t i = TIM3->CCR1 * 255 / ((USBD_CDC_POLLING_INTERVAL*1000) - 1);
         if (i > 255) {
@@ -153,7 +153,7 @@ int led_get_intensity(pyb_led_t led) {
 }
 
 void led_set_intensity(pyb_led_t led, machine_int_t intensity) {
-#if defined(PYBOARD4) || defined(PYBv10)
+#if defined(PYBV4) || defined(PYBV10)
     if (led == 4) {
         // set intensity using PWM pulse width
         if (intensity < 0) {
diff --git a/stmhal/pin_map.c b/stmhal/pin_map.c
index c546231c80ec2b1e5bb6bffbe0998b530afa6b08..a754d24a05b7ea20f7adf3ebf96299f61cf6b3ae 100644
--- a/stmhal/pin_map.c
+++ b/stmhal/pin_map.c
@@ -23,7 +23,7 @@
 //
 // CPU pins which correspond to the board pins are available
 // as pyb.cpu.Name. For the CPU pins, the names are the port letter
-// followed by the pin number. On the PYBOARD4, pyb.Pin.board.X1 and
+// followed by the pin number. On the PYBV4, pyb.Pin.board.X1 and
 // pyb.Pin.cpu.B6 are the same pin.
 //
 // You can also use strings:
diff --git a/stmhal/sdcard.c b/stmhal/sdcard.c
index 5620aef5b4b179b5fb4f2add9fa57e2c91fd39d9..ae03c9f3fa89eb12798494cbd955ed73569eca19 100644
--- a/stmhal/sdcard.c
+++ b/stmhal/sdcard.c
@@ -9,14 +9,12 @@
 #include "map.h"
 #include "runtime.h"
 #include "sdcard.h"
+#include "pin.h"
+#include "build/pins.h"
 
-static SD_HandleTypeDef sd_handle;
+#if MICROPY_HW_HAS_SDCARD
 
-#define SDCARD_DETECT_GPIO_PORT (GPIOA)
-#define SDCARD_DETECT_GPIO_PIN (GPIO_PIN_8)
-#define SDCARD_DETECT_GPIO_PULL (GPIO_PULLUP)
-#define SDCARD_DETECT_GPIO_PRESENT (GPIO_PIN_RESET)
-#define __SDCARD_DETECT_GPIO_CLK_ENABLE() __GPIOA_CLK_ENABLE()
+static SD_HandleTypeDef sd_handle;
 
 void sdcard_init(void) {
     GPIO_InitTypeDef GPIO_Init_Structure;
@@ -39,10 +37,10 @@ void sdcard_init(void) {
     // configure the SD card detect pin
     // we do this here so we can detect if the SD card is inserted before powering it on
     GPIO_Init_Structure.Mode = GPIO_MODE_INPUT;
-    GPIO_Init_Structure.Pull = SDCARD_DETECT_GPIO_PULL;
+    GPIO_Init_Structure.Pull = MICROPY_HW_SDCARD_DETECT_PULL;
     GPIO_Init_Structure.Speed = GPIO_SPEED_HIGH;
-    GPIO_Init_Structure.Pin = SDCARD_DETECT_GPIO_PIN;
-    HAL_GPIO_Init(SDCARD_DETECT_GPIO_PORT, &GPIO_Init_Structure);
+    GPIO_Init_Structure.Pin = MICROPY_HW_SDCARD_DETECT_PIN.pin_mask;
+    HAL_GPIO_Init(MICROPY_HW_SDCARD_DETECT_PIN.gpio, &GPIO_Init_Structure);
 }
 
 void HAL_SD_MspInit(SD_HandleTypeDef *hsd) {
@@ -60,7 +58,7 @@ void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd) {
 }
 
 bool sdcard_is_present(void) {
-    return HAL_GPIO_ReadPin(SDCARD_DETECT_GPIO_PORT, SDCARD_DETECT_GPIO_PIN) == SDCARD_DETECT_GPIO_PRESENT;
+    return HAL_GPIO_ReadPin(MICROPY_HW_SDCARD_DETECT_PIN.gpio, MICROPY_HW_SDCARD_DETECT_PIN.pin_mask) == MICROPY_HW_SDCARD_DETECT_PRESENT;
 }
 
 bool sdcard_power_on(void) {
@@ -248,3 +246,5 @@ static const mp_obj_type_t sdcard_type = {
 };
 
 const mp_obj_base_t pyb_sdcard_obj = {&sdcard_type};
+
+#endif // MICROPY_HW_HAS_SDCARD
diff --git a/stmhal/usart.c b/stmhal/usart.c
index daf8a9e1fc945808c438fd473aa77526ba552b69..14539c597c48597779e8c59350c531f7f2a68565 100644
--- a/stmhal/usart.c
+++ b/stmhal/usart.c
@@ -52,7 +52,7 @@ void usart_init(pyb_usart_obj_t *usart_obj, uint32_t baudrate) {
         case PYB_USART_3:
             USARTx = USART3;
 
-#if defined(PYBOARD3) || defined(PYBOARD4)
+#if defined(PYBV3) || defined(PYBV4)
             GPIO_Port = GPIOB;
             GPIO_AF_USARTx = GPIO_AF7_USART3;
             GPIO_Pin = GPIO_PIN_10 | GPIO_PIN_11;
diff --git a/stmhal/usb.c b/stmhal/usb.c
index 3d795f18232788f29f79d65631ebe55f4249e6b5..97ea2e1b415651b6dd1174cf45415d4c88ed143d 100644
--- a/stmhal/usb.c
+++ b/stmhal/usb.c
@@ -31,11 +31,15 @@ void pyb_usb_dev_init(usb_device_mode_t mode, usb_storage_medium_t medium) {
         USBD_Init(&hUSBDDevice, &VCP_Desc, 0);
         USBD_RegisterClass(&hUSBDDevice, &USBD_CDC_MSC_HID);
         USBD_CDC_RegisterInterface(&hUSBDDevice, (USBD_CDC_ItfTypeDef*)&USBD_CDC_fops);
+#if MICROPY_HW_HAS_SDCARD
         if (medium == USB_STORAGE_MEDIUM_FLASH) {
             USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_FLASH_STORAGE_fops);
         } else {
             USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_SDCARD_STORAGE_fops);
         }
+#else
+        USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_FLASH_STORAGE_fops);
+#endif
         USBD_Start(&hUSBDDevice);
     }
     dev_is_enabled = 1;
diff --git a/stmhal/usbd_msc_storage.c b/stmhal/usbd_msc_storage.c
index 1b4545cd30daf48e5657904b9bebb9e78b761987..f3ecd023d16ec4db279cd314852348f13286dac5 100644
--- a/stmhal/usbd_msc_storage.c
+++ b/stmhal/usbd_msc_storage.c
@@ -27,7 +27,7 @@
   ******************************************************************************
   */
 
-#include "usbd_cdc_msc.h"
+#include "usbd_cdc_msc_hid.h"
 #include "usbd_msc_storage.h"
 
 #include "misc.h"
@@ -159,6 +159,8 @@ const USBD_StorageTypeDef USBD_FLASH_STORAGE_fops = {
 /******************************************************************************/
 // Callback functions for when the SD card is the mass storage device
 
+#if MICROPY_HW_HAS_SDCARD
+
 static const int8_t SDCARD_STORAGE_Inquirydata[] = { // 36 bytes
     // LUN 0
     0x00,
@@ -318,3 +320,5 @@ const USBD_StorageTypeDef USBD_SDCARD_STORAGE_fops = {
     SDCARD_STORAGE_GetMaxLun,
     (int8_t *)SDCARD_STORAGE_Inquirydata,
 };
+
+#endif // MICROPY_HW_HAS_SDCARD
diff --git a/stmhal/usrsw.c b/stmhal/usrsw.c
index 60032c4ecb929a49107852a96e917f39caf9a340..038fbf9efbdb2620a655068c740a17d8a559a6c4 100644
--- a/stmhal/usrsw.c
+++ b/stmhal/usrsw.c
@@ -42,26 +42,26 @@ static MP_DEFINE_CONST_FUN_OBJ_1(switch_callback_obj, switch_callback);
 // this function inits the switch GPIO so that it can be used
 void switch_init0(void) {
     GPIO_InitTypeDef init;
-    init.Pin = USRSW_PIN.pin_mask;
+    init.Pin = MICROPY_HW_USRSW_PIN.pin_mask;
     init.Mode = GPIO_MODE_INPUT;
-    init.Pull = USRSW_PULL;
+    init.Pull = MICROPY_HW_USRSW_PULL;
     init.Speed = GPIO_SPEED_FAST;
-    HAL_GPIO_Init(USRSW_PIN.gpio, &init);
+    HAL_GPIO_Init(MICROPY_HW_USRSW_PIN.gpio, &init);
 }
 
 // this function inits the callback and EXTI function of the switch
 void switch_init(void) {
     switch_user_callback_obj = mp_const_none;
-    exti_register((mp_obj_t)&USRSW_PIN,
-                  MP_OBJ_NEW_SMALL_INT(USRSW_EXTI_MODE),
-                  MP_OBJ_NEW_SMALL_INT(USRSW_PULL),
+    exti_register((mp_obj_t)&MICROPY_HW_USRSW_PIN,
+                  MP_OBJ_NEW_SMALL_INT(MICROPY_HW_USRSW_EXTI_MODE),
+                  MP_OBJ_NEW_SMALL_INT(MICROPY_HW_USRSW_PULL),
                   (mp_obj_t)&switch_callback_obj,
                   NULL);
 }
 
 int switch_get(void) {
-    int val = ((USRSW_PIN.gpio->IDR & USRSW_PIN.pin_mask) != 0);
-    return val == USRSW_PRESSED;
+    int val = ((MICROPY_HW_USRSW_PIN.gpio->IDR & MICROPY_HW_USRSW_PIN.pin_mask) != 0);
+    return val == MICROPY_HW_USRSW_PRESSED;
 }
 
 /******************************************************************************/