Board port for Arduino Nano 33 BLE

arch/arm/src/nrf52/hardware/nrf52_twi.h

@@ -60,9 +60,9 @@
 #define NRF52_TWIM_RXDAMOUNT_OFFSET         0x053c /* Number of bytes transferred in the last RXD transaction */
 #define NRF52_TWIM_RXDLIST_OFFSET           0x0540 /* RX EasyDMA list type */
 #define NRF52_TWIM_TXDPTR_OFFSET            0x0544 /* TXD Data pointer */
-#define NRF52_TWIM_TXMAXCNT_OFFSET          0x0548 /* Maximum number of bytes in TXD buffer */
-#define NRF52_TWIM_TXAMOUNT_OFFSET          0x054c /* Number of bytes transferred in the last TXD transaction */
-#define NRF52_TWIM_TXLIST_OFFSET            0x0550 /* TX EasyDMA list type */
+#define NRF52_TWIM_TXDMAXCNT_OFFSET         0x0548 /* Maximum number of bytes in TXD buffer */
+#define NRF52_TWIM_TXDAMOUNT_OFFSET         0x054c /* Number of bytes transferred in the last TXD transaction */
+#define NRF52_TWIM_TXDLIST_OFFSET           0x0550 /* TX EasyDMA list type */
 #define NRF52_TWIM_ADDRESS_OFFSET           0x0588 /* TWIM address */
 
 /* Register offsets for TWI slave (TWIS) ************************************/
@@ -154,7 +154,7 @@
 
 #define TWIM_FREQUENCY_100KBPS              (0x01980000) /* 100 kbps */
 #define TWIM_FREQUENCY_250KBPS              (0x04000000) /* 250 kbps */
-#define TWIM_FREQUENCY_400KBPS              (0x06400000) /* 400 kbps */
+#define TWIM_FREQUENCY_400KBPS              (0x06200000) /* 400 kbps */
 
 /* RXDMAXCNT Register */
 

arch/arm/src/nrf52/nrf52_i2c.c

@@ -23,6 +23,7 @@
  ****************************************************************************/
 
 #include <nuttx/config.h>
+#include <nuttx/signal.h>
 
 #include <assert.h>
 #include <errno.h>
@@ -373,7 +374,9 @@ static int nrf52_i2c_transfer(struct i2c_master_s *dev,
           /* Write number of bytes in TXD buffer */
 
           regval = priv->dcnt;
-          nrf52_i2c_putreg(priv, NRF52_TWIM_TXMAXCNT_OFFSET, regval);
+          nrf52_i2c_putreg(priv, NRF52_TWIM_TXDMAXCNT_OFFSET, regval);
+
+          nxsig_usleep(1);
 
           /* Start TX sequence */
 

arch/arm/src/nrf52/nrf52_usbd.c

@@ -3052,9 +3052,10 @@ static void nrf52_hwinitialize(struct nrf52_usbdev_s *priv)
 {
   /* Wait for VBUS */
 
-  /* TODO: connect to POWER USB events */
 
-  while (getreg32(NRF52_POWER_EVENTS_USBDETECTED) == 0);
+  /* Wait for both power applied and ready */
+
+  while ((getreg32(NRF52_POWER_USBREGSTATUS) & NRF52_POWER_USBREGSTATUS_VBUSDETECT) == 0) ;
 
   /* Errata [187] USBD: USB cannot be enabled */
 

boards/Kconfig

@@ -1105,6 +1105,13 @@ config ARCH_BOARD_NRF52840_DONGLE
 	---help---
 		This option selects the Nordic nRF52840 Dongle (PCA10059)
 
+config ARCH_BOARD_ARDUINO_NANO_33BLE
+	bool "Arduino Nano 33 BLE Sense based on Nordic nRF52840"
+	depends on ARCH_CHIP_NRF52
+	select ARCH_HAVE_LEDS
+	---help---
+		Arduino Nano 33 BLE Sense based on Nordic nRF52840
+
 config ARCH_BOARD_THINGY52
 	bool "Nordic Thingy:52 Prototyping platform"
 	depends on ARCH_CHIP_NRF52
@@ -2865,6 +2872,7 @@ config ARCH_BOARD
 	default "arduino-mega2560"          if ARCH_BOARD_ARDUINO_MEGA2560
 	default "arduino-due"               if ARCH_BOARD_ARDUINO_DUE
 	default "arduino-m0"                if ARCH_BOARD_ARDUINO_M0
+	default "arduino-nano-33ble"        if ARCH_BOARD_ARDUINO_NANO_33BLE
 	default "arty_a7"                   if ARCH_BOARD_ARTY_A7
 	default "avr32dev1"                 if ARCH_BOARD_AVR32DEV1
 	default "axoloti"                   if ARCH_BOARD_AXOLOTI
@@ -3429,6 +3437,9 @@ endif
 if ARCH_BOARD_ARDUINO_M0
 source "boards/arm/samd2l2/arduino-m0/Kconfig"
 endif
+if ARCH_BOARD_ARDUINO_NANO_33BLE
+source "boards/arm/nrf52/arduino-nano-33ble/Kconfig"
+endif
 if ARCH_BOARD_CIRCUIT_EXPRESS
 source "boards/arm/samd2l2/circuit-express/Kconfig"
 endif

boards/README.txt

@@ -447,6 +447,9 @@ boards/hc/mcs92s12ne6/ne64badge
   STATUS:  Under development.  The port is code-complete but has
   not yet been fully tested.
 
+boards/arm/nrf52/arduino-nano-33ble
+  NuttX port to the Arduino Nano 33 BLE Sense board
+
 boards/arm/nrf52/nrf52-feather
   NuttX port to the Adafruit nRF52832 Feather board
 

boards/arm/nrf52/arduino-nano-33ble/CMakeLists.txt

@@ -0,0 +1,21 @@
+# ##############################################################################
+# boards/arm/nrf52/arduino-nano-33ble/CMakeLists.txt
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License.  You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+# ##############################################################################
+
+add_subdirectory(src)

boards/arm/nrf52/arduino-nano-33ble/Kconfig

@@ -0,0 +1,8 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_ARDUINO_NANO_33BLE
+
+endif

boards/arm/nrf52/arduino-nano-33ble/configs/nsh/defconfig

@@ -0,0 +1,41 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="arduino-nano-33ble"
+CONFIG_ARCH_BOARD_ARDUINO_NANO_33BLE=y
+CONFIG_ARCH_CHIP="nrf52"
+CONFIG_ARCH_CHIP_NRF52840=y
+CONFIG_ARCH_CHIP_NRF52=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MM_REGIONS=2
+CONFIG_NRF52_UART0=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=65535
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y

boards/arm/nrf52/arduino-nano-33ble/configs/usbnsh/defconfig

@@ -0,0 +1,45 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_DEV_CONSOLE is not set
+# CONFIG_SYSLOG_DEFAULT is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="arduino-nano-33ble"
+CONFIG_ARCH_BOARD_ARDUINO_NANO_33BLE=y
+CONFIG_ARCH_CHIP="nrf52"
+CONFIG_ARCH_CHIP_NRF52840=y
+CONFIG_ARCH_CHIP_NRF52=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARDCTL_USBDEVCTRL=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_BUILTIN=y
+CONFIG_CDCACM=y
+CONFIG_CDCACM_CONSOLE=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_EXAMPLES_HELLO=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_MM_REGIONS=2
+CONFIG_NRF52_HFCLK_XTAL=y
+CONFIG_NRF52_USBDEV=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=65535
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYSTEM_NSH=y

boards/arm/nrf52/arduino-nano-33ble/include/board.h

@@ -0,0 +1,120 @@
+/****************************************************************************
+ * boards/arm/nrf52/arduino-nano-33ble/include/board.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_NRF52_ARDUINO_NANO_33BLE_INCLUDE_BOARD_H
+#define __BOARDS_ARM_NRF52_ARDUINO_NANO_33BLE_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdbool.h>
+
+#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_NRF52_GPIOTE)
+#  include <nuttx/irq.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+
+#define BOARD_SYSTICK_CLOCK         (64000000)
+
+/* LED definitions **********************************************************/
+
+/*
+ * LED index values for use with board_userled()
+ */
+
+#define BOARD_LED1        0
+#define BOARD_LED2        1
+#define BOARD_LED3        2
+#define BOARD_LED4        3
+#define BOARD_LED5        4
+#define BOARD_NLEDS       5
+
+/* LED bits for use with board_userled_all() */
+
+#define BOARD_LED1_BIT    (1 << BOARD_LED1)
+#define BOARD_LED2_BIT    (1 << BOARD_LED2)
+#define BOARD_LED3_BIT    (1 << BOARD_LED3)
+#define BOARD_LED4_BIT    (1 << BOARD_LED4)
+#define BOARD_LED5_BIT    (1 << BOARD_LED5)
+
+/* If CONFIG_ARCH_LEDS is defined, the LED will be controlled as follows
+ * for NuttX debug functionality.
+ */
+
+#define LED_STARTED                0
+#define LED_HEAPALLOCATE           1
+#define LED_IRQSENABLED            2
+#define LED_STACKCREATED           3
+#define LED_INIRQ                  4
+#define LED_SIGNAL                 5
+#define LED_ASSERTION              6
+#define LED_PANIC                  7
+
+/* If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under
+ * control of the application.  The following interfaces are then available
+ * for application control of the LEDs:
+ *
+ *  uint32_t board_userled_initialize(void);
+ *  void board_userled(int led, bool ledon);
+ *  void board_userled_all(uint32_t ledset);
+ */
+
+/* Button definitions *******************************************************/
+
+/* Board supports no buttons. */
+
+#define NUM_BUTTONS       0
+
+/* UART Pins ****************************************************************/
+
+/* The following definitions must be provided so that the NRF52 serial
+ * driver can set up the UART for the serial console properly.
+ */
+
+#define BOARD_UART0_RX_PIN  (GPIO_INPUT  | GPIO_PORT1 | GPIO_PIN(10))
+#define BOARD_UART0_TX_PIN  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN(3))
+
+/* I2C Pins *****************************************************************/
+
+/* I2C0 (TWI0) - Internal I2C
+ *    I2C0_SCL - P0.15
+ *    I2C0_SDA - P0.14
+ */
+
+#define BOARD_I2C0_SCL_PIN    (GPIO_OUTPUT | GPIO_PORT0 | GPIO_PIN(15))
+#define BOARD_I2C0_SDA_PIN    (GPIO_INPUT  | GPIO_PORT0 | GPIO_PIN(14))
+#define BOARD_I2C0_PULLUP_PIN (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT1 | GPIO_PIN(0))
+
+/* I2C1 (TWI1) - External I2C
+ *    I2C1_SCL - P0.2
+ *    I2C1_SDA - P0.31
+ */
+
+#define BOARD_I2C1_SCL_PIN (GPIO_OUTPUT | GPIO_PORT0 | GPIO_PIN(2))
+#define BOARD_I2C1_SDA_PIN (GPIO_INPUT  | GPIO_PORT0 | GPIO_PIN(31))
+
+#endif /* __BOARDS_ARM_NRF52_ARDUINO_NANO_33BLE_INCLUDE_BOARD_H */

boards/arm/nrf52/arduino-nano-33ble/scripts/Make.defs

@@ -0,0 +1,39 @@
+############################################################################
+# boards/arm/nrf52/arduino-nano-33ble/scripts/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/.config
+include $(TOPDIR)/tools/Config.mk
+include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
+
+LDSCRIPT = flash_config.ld
+ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
+
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
+AFLAGS := $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048