diff --git a/stmhal/boards/CERB40/mpconfigboard.h b/stmhal/boards/CERB40/mpconfigboard.h
new file mode 100644
index 0000000000..a7df02b5bf
--- /dev/null
+++ b/stmhal/boards/CERB40/mpconfigboard.h
@@ -0,0 +1,29 @@
+#define CERB40
+
+#define MICROPY_HW_BOARD_NAME "Cerb40"
+#define MICROPY_HW_MCU_NAME "STM32F405RG"
+#define MICROPY_PY_SYS_PLATFORM "pyboard"
+
+#define MICROPY_HW_HAS_SWITCH (0)
+#define MICROPY_HW_HAS_SDCARD (0)
+#define MICROPY_HW_HAS_MMA7660 (0)
+#define MICROPY_HW_HAS_LIS3DSH (0)
+#define MICROPY_HW_HAS_LCD (0)
+#define MICROPY_HW_ENABLE_RNG (1)
+#define MICROPY_HW_ENABLE_RTC (1)
+#define MICROPY_HW_ENABLE_TIMER (1)
+#define MICROPY_HW_ENABLE_SERVO (0)
+#define MICROPY_HW_ENABLE_DAC (1)
+#define MICROPY_HW_ENABLE_I2C1 (1)
+#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (0)
+#define MICROPY_HW_ENABLE_SPI3 (1)
+#define MICROPY_HW_ENABLE_CAN (1)
+
+// The Cerb40 has No LEDs
+
+// The Cerb40 has No SDCard
+
+// USB config
+//#define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_A9)
+//#define MICROPY_HW_USB_OTG_ID_PIN (pin_A10)
diff --git a/stmhal/boards/CERB40/pins.csv b/stmhal/boards/CERB40/pins.csv
new file mode 100644
index 0000000000..6df6d61c77
--- /dev/null
+++ b/stmhal/boards/CERB40/pins.csv
@@ -0,0 +1,40 @@
+JP1,3.3V
+JP2,GND
+JP3,PA8
+JP4,PA13
+JP5,PA7
+JP6,PA6
+JP7,PC10
+JP8,PA14
+JP9,PC11
+JP10,PB4
+JP11,PB9
+JP12,PB3
+JP13,PD2
+JP14,PC12
+JP15,VBAT
+JP16,PB8
+JP17,Loader
+JP18,PB7
+JP19,PB6
+JP20,PB5
+JP21,Reset
+JP22,PC0
+JP23,PC1
+JP24,PC2
+JP25,PC3
+JP26,PA0
+JP27,PA1
+JP28,PA2
+JP29,PA3
+JP30,PA4
+JP31,PA5
+JP32,PB10
+JP33,PB11
+JP34,PB14
+JP35,PB15
+JP36,PC6
+JP37,PC7
+JP38,PC8
+JP39,PC9
+JP40,VUSB
diff --git a/stmhal/boards/CERB40/stm32f4xx_hal_conf.h b/stmhal/boards/CERB40/stm32f4xx_hal_conf.h
new file mode 100644
index 0000000000..7026e36c3f
--- /dev/null
+++ b/stmhal/boards/CERB40/stm32f4xx_hal_conf.h
@@ -0,0 +1,408 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_conf.h
+ * @author MCD Application Team
+ * @version V1.1.0
+ * @date 19-June-2014
+ * @brief HAL configuration file.
+ ******************************************************************************
+ * @attention
+ *
+ *
© COPYRIGHT(c) 2014 STMicroelectronics
+ *
+ * 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)12000000) /*!< 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 Internal Low Speed oscillator (LSI) value.
+ */
+#if !defined (LSI_VALUE)
+ #define LSI_VALUE ((uint32_t)40000)
+#endif /* LSI_VALUE */ /*!< Value of the Internal Low Speed oscillator in Hz
+ The real value may vary depending on the variations
+ in voltage and temperature. */
+/**
+ * @brief External Low Speed oscillator (LSE) value.
+ */
+#if !defined (LSE_VALUE)
+ #define LSE_VALUE ((uint32_t)32768) /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_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 TICK_INT_PRIORITY ((uint32_t)0x00) /*!< tick interrupt priority */
+#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/HYDRABUS/mpconfigboard.h b/stmhal/boards/HYDRABUS/mpconfigboard.h
index 0109930cad..74bcb39d8c 100644
--- a/stmhal/boards/HYDRABUS/mpconfigboard.h
+++ b/stmhal/boards/HYDRABUS/mpconfigboard.h
@@ -15,6 +15,7 @@
#define MICROPY_HW_ENABLE_DAC (1)
#define MICROPY_HW_ENABLE_I2C1 (1)
#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (1)
#define MICROPY_HW_ENABLE_CAN (0)
diff --git a/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h b/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
index 99d79d870e..e97bf187f4 100644
--- a/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
+++ b/stmhal/boards/NETDUINO_PLUS_2/mpconfigboard.h
@@ -19,6 +19,7 @@
#define MICROPY_HW_ENABLE_DAC (0)
#define MICROPY_HW_ENABLE_I2C1 (0)
#define MICROPY_HW_ENABLE_SPI1 (0)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (0)
#define MICROPY_HW_ENABLE_CAN (0)
diff --git a/stmhal/boards/PYBV10/mpconfigboard.h b/stmhal/boards/PYBV10/mpconfigboard.h
index 25472ba696..fd203a17b8 100644
--- a/stmhal/boards/PYBV10/mpconfigboard.h
+++ b/stmhal/boards/PYBV10/mpconfigboard.h
@@ -16,6 +16,7 @@
#define MICROPY_HW_ENABLE_DAC (1)
#define MICROPY_HW_ENABLE_I2C1 (1)
#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (0)
#define MICROPY_HW_ENABLE_CAN (1)
diff --git a/stmhal/boards/PYBV3/mpconfigboard.h b/stmhal/boards/PYBV3/mpconfigboard.h
index 1afc5e8c76..011fc639c6 100644
--- a/stmhal/boards/PYBV3/mpconfigboard.h
+++ b/stmhal/boards/PYBV3/mpconfigboard.h
@@ -15,6 +15,7 @@
#define MICROPY_HW_ENABLE_DAC (1)
#define MICROPY_HW_ENABLE_I2C1 (1)
#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (0)
#define MICROPY_HW_ENABLE_CAN (1)
diff --git a/stmhal/boards/PYBV4/mpconfigboard.h b/stmhal/boards/PYBV4/mpconfigboard.h
index 6663175f7a..bbb05ae588 100644
--- a/stmhal/boards/PYBV4/mpconfigboard.h
+++ b/stmhal/boards/PYBV4/mpconfigboard.h
@@ -15,6 +15,7 @@
#define MICROPY_HW_ENABLE_DAC (1)
#define MICROPY_HW_ENABLE_I2C1 (1)
#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (0)
#define MICROPY_HW_ENABLE_CAN (1)
diff --git a/stmhal/boards/STM32F4DISC/mpconfigboard.h b/stmhal/boards/STM32F4DISC/mpconfigboard.h
index bf26f641db..234692e2e0 100644
--- a/stmhal/boards/STM32F4DISC/mpconfigboard.h
+++ b/stmhal/boards/STM32F4DISC/mpconfigboard.h
@@ -15,6 +15,7 @@
#define MICROPY_HW_ENABLE_DAC (1)
#define MICROPY_HW_ENABLE_I2C1 (1)
#define MICROPY_HW_ENABLE_SPI1 (1)
+#define MICROPY_HW_ENABLE_SPI2 (1)
#define MICROPY_HW_ENABLE_SPI3 (0)
#define MICROPY_HW_ENABLE_CAN (1)
diff --git a/stmhal/led.c b/stmhal/led.c
index 4a583d4cf7..272b74c2cd 100644
--- a/stmhal/led.c
+++ b/stmhal/led.c
@@ -34,6 +34,8 @@
#include "pin.h"
#include "genhdr/pins.h"
+#if defined(MICROPY_HW_LED1)
+
/// \moduleref pyb
/// \class LED - LED object
///
@@ -292,3 +294,14 @@ const mp_obj_type_t pyb_led_type = {
.make_new = led_obj_make_new,
.locals_dict = (mp_obj_t)&led_locals_dict,
};
+
+#else
+// For boards with no LEDs, we leave an empty function here so that we don't
+// have to put conditionals everywhere.
+void led_init(void) {
+}
+void led_state(pyb_led_t led, int state) {
+}
+void led_toggle(pyb_led_t led) {
+}
+#endif // defined(MICROPY_HW_LED1)
diff --git a/stmhal/modpyb.c b/stmhal/modpyb.c
index 64712ad300..292e7965d9 100644
--- a/stmhal/modpyb.c
+++ b/stmhal/modpyb.c
@@ -573,7 +573,9 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
#endif
+#if defined(MICROPY_HW_LED1)
{ MP_OBJ_NEW_QSTR(MP_QSTR_LED), (mp_obj_t)&pyb_led_type },
+#endif
{ MP_OBJ_NEW_QSTR(MP_QSTR_I2C), (mp_obj_t)&pyb_i2c_type },
{ MP_OBJ_NEW_QSTR(MP_QSTR_SPI), (mp_obj_t)&pyb_spi_type },
{ MP_OBJ_NEW_QSTR(MP_QSTR_UART), (mp_obj_t)&pyb_uart_type },
diff --git a/stmhal/spi.c b/stmhal/spi.c
index 364bf21691..109bfe49e8 100644
--- a/stmhal/spi.c
+++ b/stmhal/spi.c
@@ -63,7 +63,9 @@
#if MICROPY_HW_ENABLE_SPI1
SPI_HandleTypeDef SPIHandle1 = {.Instance = NULL};
#endif
+#if MICROPY_HW_ENABLE_SPI2
SPI_HandleTypeDef SPIHandle2 = {.Instance = NULL};
+#endif
#if MICROPY_HW_ENABLE_SPI3
SPI_HandleTypeDef SPIHandle3 = {.Instance = NULL};
#endif
@@ -110,10 +112,12 @@ void SPI1_RX_DMA_IRQ_HANDLER(void) { HAL_DMA_IRQHandler(&spi1_rx_dma_handle); }
void SPI1_TX_DMA_IRQ_HANDLER(void) { HAL_DMA_IRQHandler(&spi1_tx_dma_handle); }
#endif
+#if MICROPY_HW_ENABLE_SPI2
STATIC DMA_HandleTypeDef spi2_rx_dma_handle;
STATIC DMA_HandleTypeDef spi2_tx_dma_handle;
void SPI2_RX_DMA_IRQ_HANDLER(void) { HAL_DMA_IRQHandler(&spi2_rx_dma_handle); }
void SPI2_TX_DMA_IRQ_HANDLER(void) { HAL_DMA_IRQHandler(&spi2_tx_dma_handle); }
+#endif
#if MICROPY_HW_ENABLE_SPI3
STATIC DMA_HandleTypeDef spi3_rx_dma_handle;
@@ -128,8 +132,10 @@ void spi_init0(void) {
memset(&SPIHandle1, 0, sizeof(SPI_HandleTypeDef));
SPIHandle1.Instance = SPI1;
#endif
+#if MICROPY_HW_ENABLE_SPI2
memset(&SPIHandle2, 0, sizeof(SPI_HandleTypeDef));
SPIHandle2.Instance = SPI2;
+#endif
#if MICROPY_HW_ENABLE_SPI3
memset(&SPIHandle3, 0, sizeof(SPI_HandleTypeDef));
SPIHandle3.Instance = SPI3;
@@ -169,6 +175,7 @@ void spi_init(SPI_HandleTypeDef *spi, bool enable_nss_pin) {
rx_dma_irqn = SPI1_RX_DMA_IRQN;
tx_dma_irqn = SPI1_TX_DMA_IRQN;
#endif
+#if MICROPY_HW_ENABLE_SPI2
} else if (spi->Instance == SPI2) {
// Y-skin: Y5=PB12=SPI2_NSS, Y6=PB13=SPI2_SCK, Y7=PB14=SPI2_MISO, Y8=PB15=SPI2_MOSI
pins[0] = &pin_B12;
@@ -187,6 +194,7 @@ void spi_init(SPI_HandleTypeDef *spi, bool enable_nss_pin) {
tx_dma = &spi2_tx_dma_handle;
rx_dma_irqn = SPI2_RX_DMA_IRQN;
tx_dma_irqn = SPI2_TX_DMA_IRQN;
+#endif
#if MICROPY_HW_ENABLE_SPI3
} else if (spi->Instance == SPI3) {
pins[0] = &pin_A4;
@@ -266,10 +274,12 @@ void spi_deinit(SPI_HandleTypeDef *spi) {
__SPI1_RELEASE_RESET();
__SPI1_CLK_DISABLE();
#endif
+#if MICROPY_HW_ENABLE_SPI2
} else if (spi->Instance == SPI2) {
__SPI2_FORCE_RESET();
__SPI2_RELEASE_RESET();
__SPI2_CLK_DISABLE();
+#endif
#if MICROPY_HW_ENABLE_SPI3
} else if (spi->Instance == SPI3) {
__SPI3_FORCE_RESET();
@@ -304,7 +314,11 @@ STATIC const pyb_spi_obj_t pyb_spi_obj[] = {
#else
{{&pyb_spi_type}, NULL},
#endif
+#if MICROPY_HW_ENABLE_SPI2
{{&pyb_spi_type}, &SPIHandle2},
+#else
+ {{&pyb_spi_type}, NULL},
+#endif
#if MICROPY_HW_ENABLE_SPI3
{{&pyb_spi_type}, &SPIHandle3},
#else