nrf: nitrogen: Add support for 96Boards BLE Nitrogen

ports/nrf/boards/nitrogen/mpconfigboard.h

@@ -0,0 +1,73 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Glenn Ruben Bakke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#define MICROPY_HW_BOARD_NAME       "96Boards Nitrogen"
+#define MICROPY_HW_NUS_NAME         "Nitrogen"
+#define MICROPY_HW_MCU_NAME         "NRF52832"
+#define MICROPY_PY_SYS_PLATFORM     "nrf52"
+
+#define MICROPY_PY_MACHINE_UART     (1)
+#define MICROPY_PY_MACHINE_HW_PWM   (1)
+#define MICROPY_PY_MACHINE_HW_SPI   (1)
+#define MICROPY_PY_MACHINE_TIMER    (1)
+#define MICROPY_PY_MACHINE_RTCOUNTER (1)
+#define MICROPY_PY_MACHINE_I2C      (1)
+#define MICROPY_PY_MACHINE_ADC      (1)
+#define MICROPY_PY_MACHINE_TEMP     (1)
+#define MICROPY_PY_RANDOM_HW_RNG    (1)
+#define MICROPY_PY_MACHINE_DFU_BOOTLOADER (1)
+#define MICROPY_PY_MACHINE_WDT      (1)
+
+#define MICROPY_HW_HAS_LED          (1)
+#define MICROPY_HW_LED_COUNT        (2)
+#define MICROPY_HW_LED_PULLUP       (0)
+
+#define MICROPY_HW_LED1             (28) // LED1
+#define MICROPY_HW_LED2             (29) // LED2
+
+// WDT config
+#define MICROPY_HW_HAS_WDT_BUTTON   (1)
+#define MICROPY_HW_WDT_BUTTON       (27)
+#define MICROPY_HW_WDT_BUTTON_ACTIVE (0) // active low
+#define MICROPY_HW_WDT_BUTTON_PULL  (1)  // pull up
+#define MICROPY_HW_WDT_BUTTON_ENABLE (0) // no enable pin
+
+// UART config
+#define MICROPY_HW_UART1_RX         (15)
+#define MICROPY_HW_UART1_TX         (13)
+#define MICROPY_HW_UART1_HWFC       (0)
+
+// SPI0 config
+#define MICROPY_HW_SPI0_NAME        "SPI0"
+#define MICROPY_HW_SPI0_SCK         (26)
+#define MICROPY_HW_SPI0_MOSI        (25)
+#define MICROPY_HW_SPI0_MISO        (23)
+
+#define MICROPY_HW_PWM0_NAME        "PWM0"
+#define MICROPY_HW_PWM1_NAME        "PWM1"
+#define MICROPY_HW_PWM2_NAME        "PWM2"
+
+#define HELP_TEXT_BOARD_LED         "1,2"

ports/nrf/boards/nitrogen/mpconfigboard.mk

@@ -0,0 +1,8 @@
+MCU_SERIES = m4
+MCU_VARIANT = nrf52
+MCU_SUB_VARIANT = nrf52832
+SOFTDEV_VERSION = 6.1.1
+LD_FILES += boards/nrf52832_512k_64k_bldr78.ld
+
+NRF_DEFINES += -DNRF52832_XXAA
+

ports/nrf/boards/nitrogen/pins.csv

@@ -0,0 +1,30 @@
+GPIO_A,P2,ADC0_IN0
+GPIO_B,P3,ADC0_IN1
+GPIO_C,P4,ADC0_IN2
+GPIO_D,P5,ADC0_IN3
+GPIO_E,P6
+GPIO_F,P7
+GPIO_G,P8
+NFC1,P9
+NFC2,P10
+GPIO_H,P11
+UART_RTS,P12
+UART_TX,P13
+UART_CTS,P14
+UART_RX,P15
+GPIO_I,P16
+GPIO_J,P17
+GPIO_K,P18
+GPIO_L,P19
+I2C_SDA,P20
+SWITCH_RST,P21
+I2C_SCL,P22
+SPI_MOSI,P23
+SPI_SS,P24
+SPI_MISO,P25
+SPI_SCK,P26
+SWITCH_USR,P27
+LED_BT,P28
+LED_USR,P29
+CHARGER_STATUS,P30,ADC0_IN6
+BATTERY_VOLTAGE,P31,ADC0_IN7