stm32/boards/MIKROE_CLICKER2_STM32: Add MikroElektronika Clicker2 board.

- STM32F407VGT6 (1MB of Flash, 192+4 Kbytes of SRAM)
- 5V (via USB) or Li-Polymer Battery (3.7V) power input
- 2 x LEDs
- 2 x user switches
- 2 x mikroBUS sockets
- 2 x 1x26 mikromedia-compatible headers (52 pins)

https://www.mikroe.com/clicker-2-stm32f4

ports/stm32/boards/MIKROE_CLICKER2_STM32/mpconfigboard.h

@@ -0,0 +1,85 @@
+#define MICROPY_HW_BOARD_NAME       "MIKROE_CLICKER2_STM32"
+#define MICROPY_HW_MCU_NAME         "STM32F407"
+
+#define MICROPY_HW_HAS_SWITCH       (1)
+#define MICROPY_HW_HAS_FLASH        (1)
+#define MICROPY_HW_ENABLE_RNG       (1)
+#define MICROPY_HW_ENABLE_RTC       (1)
+#define MICROPY_HW_ENABLE_DAC       (1)
+#define MICROPY_HW_ENABLE_USB       (1)
+
+// HSE is 25MHz
+#define MICROPY_HW_CLK_PLLM         (25)
+#define MICROPY_HW_CLK_PLLN         (336)
+#define MICROPY_HW_CLK_PLLP         (RCC_PLLP_DIV2)
+#define MICROPY_HW_CLK_PLLQ         (7)
+#define MICROPY_HW_CLK_LAST_FREQ    (1)
+
+// The board has a 32kHz crystal for the RTC
+#define MICROPY_HW_RTC_USE_LSE      (1)
+#define MICROPY_HW_RTC_USE_US       (0)
+#define MICROPY_HW_RTC_USE_CALOUT   (0)  // turn on/off PC13 512Hz output
+
+// UART config
+// mikroBUS slot 1
+#define MICROPY_HW_UART2_NAME       "SLOT1"
+#define MICROPY_HW_UART2_TX         (pin_D5)
+#define MICROPY_HW_UART2_RX         (pin_D6)
+// mikroBUS slot 2
+#define MICROPY_HW_UART3_NAME       "SLOT2"
+#define MICROPY_HW_UART3_TX         (pin_D8)
+#define MICROPY_HW_UART3_RX         (pin_D9)
+// HDR2
+#define MICROPY_HW_UART4_NAME       "HDR2"
+#define MICROPY_HW_UART4_TX         (pin_A0)
+#define MICROPY_HW_UART4_RX         (pin_A1)
+
+// I2C buses
+// mikroBUS slot 2 / HDR2
+#define MICROPY_HW_I2C2_NAME        "SLOT2"
+#define MICROPY_HW_I2C2_SCL         (pin_B10)
+#define MICROPY_HW_I2C2_SDA         (pin_B11)
+// mikroBUS slot 1
+#define MICROPY_HW_I2C3_NAME        "SLOT1"
+#define MICROPY_HW_I2C3_SCL         (pin_A8)
+#define MICROPY_HW_I2C3_SDA         (pin_C9)
+
+// SPI buses
+// mikroBUS slot 2 / HDR1
+#define MICROPY_HW_SPI2_NAME        "SLOT2"
+#define MICROPY_HW_SPI2_NSS         (pin_E11)
+#define MICROPY_HW_SPI2_SCK         (pin_B13)
+#define MICROPY_HW_SPI2_MISO        (pin_B14)
+#define MICROPY_HW_SPI2_MOSI        (pin_B15)
+// mikroBUS slot 1
+#define MICROPY_HW_SPI3_NAME        "SLOT1"
+#define MICROPY_HW_SPI3_NSS         (pin_E8)
+#define MICROPY_HW_SPI3_SCK         (pin_C10)
+#define MICROPY_HW_SPI3_MISO        (pin_C11)
+#define MICROPY_HW_SPI3_MOSI        (pin_C12)
+
+// USRSW is pulled high; pressing the button makes the input go low
+#define MICROPY_HW_USRSW_PIN        (pin_E0)
+#define MICROPY_HW_USRSW_PULL       (GPIO_NOPULL)
+#define MICROPY_HW_USRSW_EXTI_MODE  (GPIO_MODE_IT_FALLING)
+#define MICROPY_HW_USRSW_PRESSED    (0)
+
+// LEDs
+#define MICROPY_HW_LED1             (pin_E12) // red
+#define MICROPY_HW_LED2             (pin_E15) // red
+#define MICROPY_HW_LED_ON(pin)      (mp_hal_pin_high(pin))
+#define MICROPY_HW_LED_OFF(pin)     (mp_hal_pin_low(pin))
+
+// USB config
+#define MICROPY_HW_USB_FS              (1)
+#define MICROPY_HW_USB_VBUS_DETECT_PIN (pin_A9)
+
+// Bootloader configuration (only needed if Mboot is used)
+#define MBOOT_I2C_PERIPH_ID         2
+#define MBOOT_I2C_SCL               (pin_B10)
+#define MBOOT_I2C_SDA               (pin_B11)
+#define MBOOT_I2C_ALTFUNC           (4)
+#define MBOOT_BOOTPIN_PIN           (pin_A10)
+#define MBOOT_BOOTPIN_PULL          (MP_HAL_PIN_PULL_NONE)
+#define MBOOT_BOOTPIN_ACTIVE        (0)
+#define MBOOT_FSLOAD                (1)

ports/stm32/boards/MIKROE_CLICKER2_STM32/mpconfigboard.mk

@@ -0,0 +1,13 @@
+MCU_SERIES = f4
+CMSIS_MCU = STM32F407xx
+AF_FILE = boards/stm32f405_af.csv
+ifeq ($(USE_MBOOT),1)
+# When using Mboot all the text goes together after the filesystem
+LD_FILES = boards/stm32f405.ld boards/common_blifs.ld
+TEXT0_ADDR = 0x08020000
+else
+# When not using Mboot the ISR text goes first, then the rest after the filesystem
+LD_FILES = boards/stm32f405.ld boards/common_ifs.ld
+TEXT0_ADDR = 0x08000000
+TEXT1_ADDR = 0x08020000
+endif

ports/stm32/boards/MIKROE_CLICKER2_STM32/pins.csv

@@ -0,0 +1,88 @@
+MB1_AN,PA2
+MB1_RST,PE7
+MB1_CS,PE8
+MB1_SCK,PC10
+MB1_MISO,PC11
+MB1_MOSI,PC12
+MB1_PWM,PE9
+MB1_INT,PE10
+MB1_RX,PD6
+MB1_TX,PD5
+MB1_SCL,PA8
+MB1_SDA,PC9
+MB2_AN,PA3
+MB2_RST,PE13
+MB2_CS,PE11
+MB2_SCK,PB13
+MB2_MISO,PB14
+MB2_MOSI,PB15
+MB2_PWM,PD12
+MB2_INT,PE14
+MB2_RX,PD9
+MB2_TX,PD8
+MB2_SCL,PB10
+MB2_SDA,PB11
+PIN1,VSYS
+PIN2,GND
+PIN3,PC0
+PIN4,PC1
+PIN5,PC2
+PIN6,PC3
+PIN7,PB1
+PIN8,PA4
+PIN9,PC4
+PIN10,PD3
+PIN11,PD1
+PIN12,PD2
+PIN13,PD0
+PIN14,PC8
+PIN15,PD15
+PIN16,PD14
+PIN17,PD13
+PIN18,PB7
+PIN19,PC7
+PIN20,PD11
+PIN21,PD10
+PIN22,PB13
+PIN23,PB14
+PIN24,PB15
+PIN25,3.3V
+PIN26,GND
+PIN27,RST
+PIN28,GND
+PIN30,NC
+PIN31,PB9
+PIN32,PB8
+PIN33,PE5
+PIN34,PB0
+PIN35,PA5
+PIN36,PA6
+PIN37,PA7
+PIN38,PE1
+PIN39,PE2
+PIN40,PE3
+PIN41,PE4
+PIN42,PE6
+PIN43,PB6
+PIN44,PB5
+PIN45,PD7
+PIN46,PC13
+PIN47,PA1
+PIN48,PA0
+PIN49,PB10
+PIN50,PB11
+PIN51,3.3V
+PIN52,GND
+OSC32_OUT,PC15
+OSC32_IN,PC14
+VSENSE,PC5
+SENSEL,PB12
+FAULT,PC6
+BATSTAT,PD4
+LD1,PE12
+LD2,PE15
+T2,PE0
+T3,PA10
+USB_VBUS,PA9
+USB_DM,PA11
+USB_DP,PA12

ports/stm32/boards/MIKROE_CLICKER2_STM32/stm32f4xx_hal_conf.h

@@ -0,0 +1,19 @@
+/* This file is part of the MicroPython project, http://micropython.org/
+ * The MIT License (MIT)
+ * Copyright (c) 2019 Damien P. George
+ */
+#ifndef MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H
+#define MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H
+
+#include "boards/stm32f4xx_hal_conf_base.h"
+
+// Oscillator values in Hz
+#define HSE_VALUE (25000000)
+#define LSE_VALUE (32768)
+#define EXTERNAL_CLOCK_VALUE (12288000)
+
+// Oscillator timeouts in ms
+#define HSE_STARTUP_TIMEOUT (100)
+#define LSE_STARTUP_TIMEOUT (5000)
+
+#endif // MICROPY_INCLUDED_STM32F4XX_HAL_CONF_H