multi-app based on nrf52sdk

Makefile

@@ -1,8 +1,8 @@
 .DEFAULT_GOAL := all
 
-APPLICATION ?= button
+APPLICATION ?= blinky
 
-PLATFORM ?= posix
+PLATFORM ?= nrf52
 TARGET_FILE ?= $(APPLICATION).elf
 
 CC = $(CROSS_COMPILE)gcc
@@ -27,6 +27,7 @@ TARGET_PACKAGE = $(patsubst %.hex,%.zip,$(TARGET_HEX))
 THIS_MAKEFILE := $(lastword $(MAKEFILE_LIST))
 
 INCLUDES += include/
+INCLUDES += include/application/$(APPLICATION)
 
 OPT = 3
 C_FLAGS += -O$(OPT) -g$(OPT)
@@ -35,7 +36,7 @@ C_FLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
 
 LIBS += c nosys m
 
-include Makefile.$(PLATFORM)
+include config/build/$(PLATFORM)/$(APPLICATION)/Makefile.$(APPLICATION)
 
 .PHONY: all install uninstall clean distclean debug
 all: $(TARGET)
@@ -59,11 +60,11 @@ $(TARGET_HEX): $(TARGET) $(THIS_MAKEFILE)
 	$(OBJCOPY) -O ihex $(TARGET) $(TARGET_HEX)
 	ln -sf $(shell pwd)/$@ $(shell pwd)/bin/firmware.hex
 
-$(OBJ_DIR)/%.d: $(SRC_DIR)/%.c
+$(OBJ_DIR)/%.d: $(SRC_DIR)/%.c $(THIS_MAKEFILE)
 	@mkdir -p $(dir $@)
 	$(CPP) -MM -MF $@ -MP -MT $(patsubst %.d,%.o,$@) $(C_FLAGS) $(CPP_FLAGS) $(patsubst $(OBJ_DIR)/%.d,$(SRC_DIR)/%.c,$@)
 
-$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c $(THIS_MAKEFILE)
 	@mkdir -p $(dir $@)
 	$(CC) -c $(CPP_FLAGS) $(C_FLAGS) $< -o $@
 

Makefile.nrf52

@@ -1,108 +0,0 @@
-CPU = cortex-m4
-CROSS_COMPILE ?= arm-none-eabi-
-
-NRF_PATH := nrf5sdk/
-INCLUDES += $(NRF_PATH)components/
-INCLUDES += $(NRF_PATH)modules/nrfx/mdk/
-INCLUDES += $(NRF_PATH)components/libraries/strerror/
-INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/nrf52/
-INCLUDES += $(NRF_PATH)components/toolchain/cmsis/include/
-INCLUDES += $(NRF_PATH)components/libraries/util/
-INCLUDES += $(NRF_PATH)components/libraries/balloc/
-INCLUDES += $(NRF_PATH)components/libraries/ringbuf/
-INCLUDES += $(NRF_PATH)modules/nrfx/hal/
-INCLUDES += $(NRF_PATH)components/libraries/bsp/
-INCLUDES += $(NRF_PATH)components/libraries/log/
-INCLUDES += $(NRF_PATH)modules/nrfx/
-INCLUDES += $(NRF_PATH)components/libraries/experimental_section_vars/
-INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/
-INCLUDES += $(NRF_PATH)components/libraries/delay/
-INCLUDES += $(NRF_PATH)integration/nrfx/
-INCLUDES += $(NRF_PATH)components/libraries/atomic/
-INCLUDES += $(NRF_PATH)components/boards/
-INCLUDES += $(NRF_PATH)components/libraries/memobj/
-INCLUDES += $(NRF_PATH)components/softdevice/common/
-INCLUDES += $(NRF_PATH)external/fprintf/
-INCLUDES += $(NRF_PATH)components/libraries/log/src/
-
-NRF_C_SRCS += $(NRF_PATH)components/boards/boards.c
-NRF_C_SRCS += $(NRF_PATH)modules/nrfx/mdk/system_nrf52.c
-NRF_C_OBJS = $(patsubst $(NRF_PATH)%,$(OBJ_DIR)/%,$(patsubst %.c,%.o,$(NRF_C_SRCS)))
-
-NRF_A_SRCS = $(NRF_PATH)modules/nrfx/mdk/gcc_startup_nrf52.S
-NRF_A_OBJS = $(patsubst $(NRF_PATH)%,$(OBJ_DIR)/%,$(patsubst %.S,%.o,$(NRF_A_SRCS)))
-
-C_FLAGS += -DBOARD_PCA10040
-C_FLAGS += -DBSP_DEFINES_ONLY
-C_FLAGS += -DCONFIG_GPIO_AS_PINRESET
-C_FLAGS += -DFLOAT_ABI_HARD
-C_FLAGS += -DNRF52
-C_FLAGS += -DNRF52832_XXAA
-C_FLAGS += -DNRF52_PAN_74
-C_FLAGS += -DNRF_SD_BLE_API_VERSION=7
-C_FLAGS += -DS132
-C_FLAGS += -DSOFTDEVICE_PRESENT
-C_FLAGS += -mcpu=$(CPU)
-C_FLAGS += -mthumb -mabi=aapcs
-C_FLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
-C_FLAGS += -fno-builtin -fshort-enums
-C_FLAGS += -D__HEAP_SIZE=8192
-C_FLAGS += -D__HEAP_SIZE=8192
-
-# Assembler flags common to all targets
-A_FLAGS += -g$(OPT)
-A_FLAGS += -mcpu=$(CPU)
-A_FLAGS += -mthumb -mabi=aapcs
-A_FLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
-A_FLAGS += -DBOARD_PCA10040
-A_FLAGS += -DBSP_DEFINES_ONLY
-A_FLAGS += -DCONFIG_GPIO_AS_PINRESET
-A_FLAGS += -DFLOAT_ABI_HARD
-A_FLAGS += -DNRF52
-A_FLAGS += -DNRF52832_XXAA
-A_FLAGS += -DNRF52_PAN_74
-A_FLAGS += -DNRF_SD_BLE_API_VERSION=7
-A_FLAGS += -DS132
-A_FLAGS += -DSOFTDEVICE_PRESENT
-A_FLAGS += -D__HEAP_SIZE=8192
-A_FLAGS += -D__HEAP_SIZE=8192
-
-LINKER_SCRIPT = blinky_gcc_nrf52.ld
-# Linker flags
-LD_FLAGS += -O$(OPT) -g$(OPT)
-LD_FLAGS += -mthumb -mabi=aapcs -L$(NRF_PATH)modules/nrfx/mdk -T$(LINKER_SCRIPT)
-LD_FLAGS += -mcpu=$(CPU)
-LD_FLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
-LD_FLAGS += -Wl,--gc-sections
-LD_FLAGS += --specs=nano.specs
-
-.PHONY: package flash flash_softdevice erase
-
-package: $(TARGET_HEX) $(THIS_MAKEFILE)
-	nrfutil pkg generate --hw-version 52 --application-version 1 --application $(TARGET_HEX) --sd-req 0xCB --sd-id 0xCB --key-file keys/private.key $(TARGET_PACKAGE)
-
-flash: $(TARGET_HEX) $(THIS_MAKEFILE)
-	@echo Flashing: $(TARGET_HEX)
-	nrfjprog -f nrf52 --program $(TARGET_HEX) --sectorerase
-	nrfjprog -f nrf52 --reset
-
-flash_softdevice:
-	@echo Flashing: $(NRF_PATH)/components/softdevice/s132/hex/s132_nrf52_7.0.1_softdevice.hex
-	nrfjprog -f nrf52 --program $(NRF_PATH)/components/softdevice/s132/hex/s132_nrf52_7.0.1_softdevice.hex --sectorerase
-	nrfjprog -f nrf52 --reset
-
-erase:
-	nrfjprog -f nrf52 --eraseall
-
-$(OBJ_DIR)/%.d: $(NRF_PATH)/%.S
-	@mkdir -p $(dir $@)
-	$(CPP) -MM -MF $@ -MP -MT $(patsubst %.d,%.o,$@) $(C_FLAGS) $(CPP_FLAGS) $(patsubst $(OBJ_DIR)/%.d,$(NRF_PATH)/%.S,$@)
-
-$(OBJ_DIR)/%.o: $(NRF_PATH)/%.c
-	@mkdir -p $(dir $@)
-	$(CC) -std=c99 -MP -MD -c -o $@ $< $(C_FLAGS) $(CPP_FLAGS)
-
-$(OBJ_DIR)/%.o: $(NRF_PATH)/%.S
-	@mkdir -p $(dir $@)
-	$(CC) -c $(ASMFLAGS) $< -o $@
-

config/build/nrf52/blinky/Makefile.blinky

@@ -0,0 +1,33 @@
+CPU = cortex-m4
+CROSS_COMPILE ?= arm-none-eabi-
+
+NRF_PATH := nrf5sdk/
+INCLUDES += $(NRF_PATH)components/
+INCLUDES += $(NRF_PATH)modules/nrfx/mdk/
+INCLUDES += $(NRF_PATH)components/libraries/strerror/
+INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/nrf52/
+INCLUDES += $(NRF_PATH)components/toolchain/cmsis/include/
+INCLUDES += $(NRF_PATH)components/libraries/util/
+INCLUDES += $(NRF_PATH)components/libraries/balloc/
+INCLUDES += $(NRF_PATH)components/libraries/ringbuf/
+INCLUDES += $(NRF_PATH)modules/nrfx/hal/
+INCLUDES += $(NRF_PATH)components/libraries/bsp/
+INCLUDES += $(NRF_PATH)components/libraries/log/
+INCLUDES += $(NRF_PATH)modules/nrfx/
+INCLUDES += $(NRF_PATH)modules/nrfx/drivers/include/
+INCLUDES += $(NRF_PATH)components/libraries/experimental_section_vars/
+INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/
+INCLUDES += $(NRF_PATH)components/libraries/delay/
+INCLUDES += $(NRF_PATH)integration/nrfx/
+INCLUDES += $(NRF_PATH)integration/nrfx/legacy/
+INCLUDES += $(NRF_PATH)components/libraries/atomic/
+INCLUDES += $(NRF_PATH)components/boards/
+INCLUDES += $(NRF_PATH)components/libraries/memobj/
+INCLUDES += $(NRF_PATH)components/softdevice/common/
+INCLUDES += $(NRF_PATH)external/fprintf/
+INCLUDES += $(NRF_PATH)components/libraries/log/src/
+
+NRF_C_SRCS += $(NRF_PATH)components/boards/boards.c
+NRF_C_SRCS += $(NRF_PATH)modules/nrfx/mdk/system_nrf52.c
+
+include config/build/$(PLATFORM)/Makefile.$(PLATFORM)

config/build/nrf52/button/Makefile.button

@@ -0,0 +1,36 @@
+CPU = cortex-m4
+CROSS_COMPILE ?= arm-none-eabi-
+
+NRF_PATH := nrf5sdk/
+INCLUDES += $(NRF_PATH)components/
+INCLUDES += $(NRF_PATH)modules/nrfx/mdk/
+INCLUDES += $(NRF_PATH)components/libraries/strerror/
+INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/nrf52/
+INCLUDES += $(NRF_PATH)components/toolchain/cmsis/include/
+INCLUDES += $(NRF_PATH)components/libraries/util/
+INCLUDES += $(NRF_PATH)components/libraries/balloc/
+INCLUDES += $(NRF_PATH)components/libraries/ringbuf/
+INCLUDES += $(NRF_PATH)modules/nrfx/hal/
+INCLUDES += $(NRF_PATH)components/libraries/bsp/
+INCLUDES += $(NRF_PATH)components/libraries/log/
+INCLUDES += $(NRF_PATH)modules/nrfx/
+INCLUDES += $(NRF_PATH)modules/nrfx/drivers/include/
+INCLUDES += $(NRF_PATH)components/libraries/experimental_section_vars/
+INCLUDES += $(NRF_PATH)components/softdevice/s132/headers/
+INCLUDES += $(NRF_PATH)components/libraries/delay/
+INCLUDES += $(NRF_PATH)integration/nrfx/
+INCLUDES += $(NRF_PATH)integration/nrfx/legacy/
+INCLUDES += $(NRF_PATH)components/libraries/atomic/
+INCLUDES += $(NRF_PATH)components/boards/
+INCLUDES += $(NRF_PATH)components/libraries/memobj/
+INCLUDES += $(NRF_PATH)components/softdevice/common/
+INCLUDES += $(NRF_PATH)external/fprintf/
+INCLUDES += $(NRF_PATH)components/libraries/log/src/
+
+NRF_C_SRCS += $(NRF_PATH)components/boards/boards.c
+NRF_C_SRCS += $(NRF_PATH)modules/nrfx/mdk/system_nrf52.c
+NRF_C_SRCS += $(NRF_PATH)modules/nrfx/drivers/src/nrfx_gpiote.c
+NRF_C_SRCS += $(NRF_PATH)components/libraries/util/app_error.c
+NRF_C_SRCS += $(NRF_PATH)components/libraries/util/app_error_weak.c
+
+include config/build/$(PLATFORM)/Makefile.$(PLATFORM)

config/build/nrf52/button/linker.ld

@@ -0,0 +1,64 @@
+/* Linker script to configure memory regions. */
+
+SEARCH_DIR(.)
+GROUP(-lgcc -lc -lnosys)
+
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x80000
+  RAM (rwx) :  ORIGIN = 0x20000000, LENGTH = 0x10000
+}
+
+SECTIONS
+{
+}
+
+SECTIONS
+{
+  . = ALIGN(4);
+  .mem_section_dummy_ram :
+  {
+  }
+  .log_dynamic_data :
+  {
+    PROVIDE(__start_log_dynamic_data = .);
+    KEEP(*(SORT(.log_dynamic_data*)))
+    PROVIDE(__stop_log_dynamic_data = .);
+  } > RAM
+  .log_filter_data :
+  {
+    PROVIDE(__start_log_filter_data = .);
+    KEEP(*(SORT(.log_filter_data*)))
+    PROVIDE(__stop_log_filter_data = .);
+  } > RAM
+
+} INSERT AFTER .data;
+
+SECTIONS
+{
+  .mem_section_dummy_rom :
+  {
+  }
+  .log_const_data :
+  {
+    PROVIDE(__start_log_const_data = .);
+    KEEP(*(SORT(.log_const_data*)))
+    PROVIDE(__stop_log_const_data = .);
+  } > FLASH
+  .log_backends :
+  {
+    PROVIDE(__start_log_backends = .);
+    KEEP(*(SORT(.log_backends*)))
+    PROVIDE(__stop_log_backends = .);
+  } > FLASH
+    .nrf_balloc :
+  {
+    PROVIDE(__start_nrf_balloc = .);
+    KEEP(*(.nrf_balloc))
+    PROVIDE(__stop_nrf_balloc = .);
+  } > FLASH
+
+} INSERT AFTER .text
+
+
+INCLUDE "nrf_common.ld"

include/board.h

@@ -1,8 +0,0 @@
-#ifndef __BOARD_H__
-#define __BOARD_H__
-
-#ifdef BOARD_PCA10040
-#include "platform/narf52/narf52_dk.h"
-#endif
-
-#endif

include/driver.h

@@ -1,34 +0,0 @@
-#ifndef __DRIVER_H__
-#define __DRIVER_H__
-
-#include <stdarg.h>
-
-struct driver;
-
-typedef int (*fp_open_t)(const struct driver *);
-typedef int (*fp_close_t)(const struct driver *);
-typedef int (*fp_read_t)(const struct driver *, char *, unsigned int);
-typedef int (*fp_write_t)(const struct driver *, const char *, unsigned int);
-typedef int (*fp_ioctl_t)(const struct driver *, unsigned int, unsigned int argc, va_list);
-
-struct driver_fp {
-    fp_open_t   open;
-    fp_close_t  close;
-    fp_read_t   read;
-    fp_write_t  write;
-    fp_ioctl_t  ioctl;
-};
-
-struct driver {
-    const char *name;
-    const struct driver_fp *fp;
-    const void *dev;
-};
-
-int drv_open(const struct driver *drv);
-int drv_close(const struct driver *drv);
-int drv_read(const struct driver *drv, char *buffer, unsigned int length);
-int drv_write(const struct driver *drv, const char *buffer, unsigned int length);
-int drv_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, ...);
-
-#endif

include/gpio.h

@@ -1,23 +0,0 @@
-    #ifndef __GPIO_H__
-    #define __GPIO_H__
-
-    #include <stdarg.h>
-
-    #include "driver.h"
-
-    int gpio_open(const struct driver *drv);
-    int gpio_close(const struct driver *drv);
-
-    int gpio_read(const struct driver *drv, char *buffer, unsigned int len);
-    int gpio_write(const struct driver *drv, const char *buffer, unsigned int len);
-    int gpio_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, va_list args);
-
-    static const struct driver_fp gpio_fp = {
-        .open = gpio_open,
-        .close = gpio_close,
-        .read = gpio_read,
-        .write = gpio_write,
-        .ioctl = gpio_ioctl
-    };
-
-    #endif

include/platform/narf52/narf52.h

@@ -1,100 +0,0 @@
-#ifndef __PLATFORM_NARF52_NARF52_H__
-#define __PLATFORM_NARF52_NARF52_H__
-
-#include <stdint.h>
-
-typedef enum {
-/* =======================================  ARM Cortex-M4 Specific Interrupt Numbers  ======================================== */
-  Reset_IRQn                = -15,              /*!< -15  Reset Vector, invoked on Power up and warm reset                     */
-  NonMaskableInt_IRQn       = -14,              /*!< -14  Non maskable Interrupt, cannot be stopped or preempted               */
-  HardFault_IRQn            = -13,              /*!< -13  Hard Fault, all classes of Fault                                     */
-  MemoryManagement_IRQn     = -12,              /*!< -12  Memory Management, MPU mismatch, including Access Violation
-                                                     and No Match                                                              */
-  BusFault_IRQn             = -11,              /*!< -11  Bus Fault, Pre-Fetch-, Memory Access Fault, other address/memory
-                                                     related Fault                                                             */
-  UsageFault_IRQn           = -10,              /*!< -10  Usage Fault, i.e. Undef Instruction, Illegal State Transition        */
-  SVCall_IRQn               =  -5,              /*!< -5 System Service Call via SVC instruction                                */
-  DebugMonitor_IRQn         =  -4,              /*!< -4 Debug Monitor                                                          */
-  PendSV_IRQn               =  -2,              /*!< -2 Pendable request for system service                                    */
-  SysTick_IRQn              =  -1,              /*!< -1 System Tick Timer                                                      */
-/* ===========================================  nrf52 Specific Interrupt Numbers  ============================================ */
-  POWER_CLOCK_IRQn          =   0,              /*!< 0  POWER_CLOCK                                                            */
-  RADIO_IRQn                =   1,              /*!< 1  RADIO                                                                  */
-  UARTE0_UART0_IRQn         =   2,              /*!< 2  UARTE0_UART0                                                           */
-  SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn=   3,  /*!< 3  SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0                                      */
-  SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn=   4,  /*!< 4  SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1                                      */
-  NFCT_IRQn                 =   5,              /*!< 5  NFCT                                                                   */
-  GPIOTE_IRQn               =   6,              /*!< 6  GPIOTE                                                                 */
-  SAADC_IRQn                =   7,              /*!< 7  SAADC                                                                  */
-  TIMER0_IRQn               =   8,              /*!< 8  TIMER0                                                                 */
-  TIMER1_IRQn               =   9,              /*!< 9  TIMER1                                                                 */
-  TIMER2_IRQn               =  10,              /*!< 10 TIMER2                                                                 */
-  RTC0_IRQn                 =  11,              /*!< 11 RTC0                                                                   */
-  TEMP_IRQn                 =  12,              /*!< 12 TEMP                                                                   */
-  RNG_IRQn                  =  13,              /*!< 13 RNG                                                                    */
-  ECB_IRQn                  =  14,              /*!< 14 ECB                                                                    */
-  CCM_AAR_IRQn              =  15,              /*!< 15 CCM_AAR                                                                */
-  WDT_IRQn                  =  16,              /*!< 16 WDT                                                                    */
-  RTC1_IRQn                 =  17,              /*!< 17 RTC1                                                                   */
-  QDEC_IRQn                 =  18,              /*!< 18 QDEC                                                                   */
-  COMP_LPCOMP_IRQn          =  19,              /*!< 19 COMP_LPCOMP                                                            */
-  SWI0_EGU0_IRQn            =  20,              /*!< 20 SWI0_EGU0                                                              */
-  SWI1_EGU1_IRQn            =  21,              /*!< 21 SWI1_EGU1                                                              */
-  SWI2_EGU2_IRQn            =  22,              /*!< 22 SWI2_EGU2                                                              */
-  SWI3_EGU3_IRQn            =  23,              /*!< 23 SWI3_EGU3                                                              */
-  SWI4_EGU4_IRQn            =  24,              /*!< 24 SWI4_EGU4                                                              */
-  SWI5_EGU5_IRQn            =  25,              /*!< 25 SWI5_EGU5                                                              */
-  TIMER3_IRQn               =  26,              /*!< 26 TIMER3                                                                 */
-  TIMER4_IRQn               =  27,              /*!< 27 TIMER4                                                                 */
-  PWM0_IRQn                 =  28,              /*!< 28 PWM0                                                                   */
-  PDM_IRQn                  =  29,              /*!< 29 PDM                                                                    */
-  MWU_IRQn                  =  32,              /*!< 32 MWU                                                                    */
-  PWM1_IRQn                 =  33,              /*!< 33 PWM1                                                                   */
-  PWM2_IRQn                 =  34,              /*!< 34 PWM2                                                                   */
-  SPIM2_SPIS2_SPI2_IRQn     =  35,              /*!< 35 SPIM2_SPIS2_SPI2                                                       */
-  RTC2_IRQn                 =  36,              /*!< 36 RTC2                                                                   */
-  I2S_IRQn                  =  37,              /*!< 37 I2S                                                                    */
-  FPU_IRQn                  =  38               /*!< 38 FPU                                                                    */
-} IRQn_Type;
-
-
-/* =========================================================================================================================== */
-/* ================                           Processor and Core Peripheral Section                           ================ */
-/* =========================================================================================================================== */
-
-/* ===========================  Configuration of the ARM Cortex-M4 Processor and Core Peripherals  =========================== */
-#define __CM4_REV                 0x0001U       /*!< CM4 Core Revision                                                         */
-#define __DSP_PRESENT                  0        /*!< DSP present or not                                                        */
-#define __VTOR_PRESENT                 1        /*!< Set to 1 if CPU supports Vector Table Offset Register                     */
-#define __NVIC_PRIO_BITS               3        /*!< Number of Bits used for Priority Levels                                   */
-#define __Vendor_SysTickConfig         0        /*!< Set to 1 if different SysTick Config is used                              */
-#define __MPU_PRESENT                  1        /*!< MPU present                                                               */
-#define __FPU_PRESENT                  1        /*!< FPU present                                                               */
-
-#include "core_cm4.h"
-
-struct narf52_gpio_type {                       /*!< (@ 0x50000000) P0 Structure                                               */
-    __IM  uint32_t  RESERVED[321];
-    __IOM uint32_t  OUT;                        /*!< (@ 0x00000504) Write GPIO port                                            */
-    __IOM uint32_t  OUTSET;                     /*!< (@ 0x00000508) Set individual bits in GPIO port                           */
-    __IOM uint32_t  OUTCLR;                     /*!< (@ 0x0000050C) Clear individual bits in GPIO port                         */
-    __IM  uint32_t  IN;                         /*!< (@ 0x00000510) Read GPIO port                                             */
-    __IOM uint32_t  DIR;                        /*!< (@ 0x00000514) Direction of GPIO pins                                     */
-    __IOM uint32_t  DIRSET;                     /*!< (@ 0x00000518) DIR set register                                           */
-    __IOM uint32_t  DIRCLR;                     /*!< (@ 0x0000051C) DIR clear register                                         */
-    __IOM uint32_t  LATCH;                      /*!< (@ 0x00000520) Latch register indicating what GPIO pins that
-                                                                    have met the criteria set in the PIN_CNF[n].SENSE
-                                                                    registers                                                  */
-    __IOM uint32_t  DETECTMODE;                 /*!< (@ 0x00000524) Select between default DETECT signal behaviour
-                                                                    and LDETECT mode                                           */
-    __IM  uint32_t  RESERVED1[118];
-    __IOM uint32_t  PIN_CNF[32];                /*!< (@ 0x00000700) Description collection[0]: Configuration of GPIO
-                                                                    pins                                                       */
-};                                              /*!< Size = 1920 (0x780)                                                       */
-
-
-
-#define NARF_P0_BASE                 0x50000000UL
-
-
-#endif

include/platform/narf52/narf52_dk.h

@@ -1,131 +0,0 @@
-#ifndef __PLATFORM_NARF52_NARF52_DK_H
-#define __PLATFORM_NARF52_NARF52_DK_H
-
-#include "gpio.h"
-#include "narf52_gpio.h"
-
-#include "driver.h"
-
-// LEDs
-const struct narf52_gpio narf_led_1 = {
-    .pin_number = 17,
-    .dir = NARF_GPIO_DIR_OUT,
-    .input = NARF_GPIO_PIN_INPUT_DISCONNECT,
-    .pull = NARF_GPIO_PIN_NOPULL,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver led_1 = {
-    .name = "LED_1",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_led_1,
-};
-
-const struct narf52_gpio narf_led_2 = {
-    .pin_number = 18,
-    .dir = NARF_GPIO_DIR_OUT,
-    .input = NARF_GPIO_PIN_INPUT_DISCONNECT,
-    .pull = NARF_GPIO_PIN_NOPULL,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver led_2 = {
-    .name = "LED_2",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_led_2,
-};
-
-const struct narf52_gpio narf_led_3 = {
-    .pin_number = 19,
-    .dir = NARF_GPIO_DIR_OUT,
-    .input = NARF_GPIO_PIN_INPUT_DISCONNECT,
-    .pull = NARF_GPIO_PIN_NOPULL,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver led_3 = {
-    .name = "LED_3",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_led_3,
-};
-
-const struct narf52_gpio narf_led_4 = {
-    .pin_number = 20,
-    .dir = NARF_GPIO_DIR_OUT,
-    .input = NARF_GPIO_PIN_INPUT_DISCONNECT,
-    .pull = NARF_GPIO_PIN_NOPULL,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver led_4 = {
-    .name = "LED_4",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_led_4,
-};
-
-// BUTTONs
-const struct narf52_gpio narf_button_1 = {
-    .pin_number = 13,
-    .dir = NARF_GPIO_DIR_IN,
-    .input = NARF_GPIO_PIN_INPUT_CONNECT,
-    .pull = NARF_GPIO_PIN_PULLUP,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver button_1 = {
-    .name = "BUTTON_1",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_button_1,
-};
-
-const struct narf52_gpio narf_button_2 = {
-    .pin_number = 14,
-    .dir = NARF_GPIO_DIR_IN,
-    .input = NARF_GPIO_PIN_INPUT_CONNECT,
-    .pull = NARF_GPIO_PIN_PULLUP,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver button_2 = {
-    .name = "BUTTON_2",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_button_2,
-};
-
-const struct narf52_gpio narf_button_3 = {
-    .pin_number = 15,
-    .dir = NARF_GPIO_DIR_IN,
-    .input = NARF_GPIO_PIN_INPUT_CONNECT,
-    .pull = NARF_GPIO_PIN_PULLUP,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver button_3 = {
-    .name = "BUTTON_3",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_button_3,
-};
-
-const struct narf52_gpio narf_button_4 = {
-    .pin_number = 16,
-    .dir = NARF_GPIO_DIR_IN,
-    .input = NARF_GPIO_PIN_INPUT_CONNECT,
-    .pull = NARF_GPIO_PIN_PULLUP,
-    .drive = NARF_GPIO_PIN_S0S1,
-    .sense = NARF_GPIO_PIN_NOSENSE,
-};
-
-const struct driver button_4 = {
-    .name = "BUTTON_4",
-    .fp = &gpio_fp,
-    .dev = (void *)&narf_button_4,
-};
-
-#endif

include/platform/narf52/narf52_gpio.h

@@ -1,48 +0,0 @@
-#ifndef __PLATFORM_NARF52_NARF52_GPIO_H__
-#define __PLATFORM_NARF52_NARF52_GPIO_H__
-
-#include <stdint.h>
-
-enum narf52_gpio_direction {
-    NARF_GPIO_DIR_IN = 0,
-    NARF_GPIO_DIR_OUT
-};
-
-enum narf52_gpio_pin_input {
-    NARF_GPIO_PIN_INPUT_CONNECT    = 0,   ///< Connect input buffer.
-    NARF_GPIO_PIN_INPUT_DISCONNECT        ///< Disconnect input buffer.
-};
-
-enum narf52_gpio_pin_pull {
-    NARF_GPIO_PIN_NOPULL   = 0,  ///<  Pin pull-up resistor disabled.
-    NARF_GPIO_PIN_PULLDOWN = 1,  ///<  Pin pull-down resistor enabled.
-    NARF_GPIO_PIN_PULLUP   = 3   ///<  Pin pull-up resistor enabled.
-};
-
-enum narf52_gpio_pin_drive {
-    NARF_GPIO_PIN_S0S1 = 0,  ///< !< Standard '0', standard '1'.
-    NARF_GPIO_PIN_H0S1 = 1,  ///< !< High-drive '0', standard '1'.
-    NARF_GPIO_PIN_S0H1 = 2,  ///< !< Standard '0', high-drive '1'.
-    NARF_GPIO_PIN_H0H1 = 3,  ///< !< High drive '0', high-drive '1'.
-    NARF_GPIO_PIN_D0S1 = 4,  ///< !< Disconnect '0' standard '1'.
-    NARF_GPIO_PIN_D0H1 = 5,  ///< !< Disconnect '0', high-drive '1'.
-    NARF_GPIO_PIN_S0D1 = 6,  ///< !< Standard '0', disconnect '1'.
-    NARF_GPIO_PIN_H0D1 = 7   ///< !< High-drive '0', disconnect '1'.
-};
-
-enum narf52_gpio_pin_sense {
-    NARF_GPIO_PIN_NOSENSE    = 0,    ///<  Pin sense level disabled.
-    NARF_GPIO_PIN_SENSE_LOW  = 1,    ///<  Pin sense low level.
-    NARF_GPIO_PIN_SENSE_HIGH = 2     ///<  Pin sense high level.
-};
-
-struct narf52_gpio {
-    uint32_t pin_number;
-    enum narf52_gpio_direction dir;
-    enum narf52_gpio_pin_input input;
-    enum narf52_gpio_pin_pull pull;
-    enum narf52_gpio_pin_drive drive;
-    enum narf52_gpio_pin_sense sense;
-};
-
-#endif

src/application/blinky/main.c

@@ -1,26 +1,77 @@
+/**
+ * Copyright (c) 2014 - 2019, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * 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, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, 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 Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
+ *
+ */
+/** @file
+ *
+ * @defgroup blinky_example_main main.c
+ * @{
+ * @ingroup blinky_example
+ * @brief Blinky Example Application main file.
+ *
+ * This file contains the source code for a sample application to blink LEDs.
+ *
+ */
+
 #include <stdbool.h>
-#include <limits.h>
+#include <stdint.h>
 #include "nrf_delay.h"
 #include "boards.h"
-#include "platform/narf52/narf52_dk.h"
- 
-#include "driver.h"
 
+/**
+ * @brief Function for application main entry.
+ */
 int main(void)
 {
-    drv_open(&led_1);
-    drv_open(&led_2);
-    drv_open(&led_3);
-    drv_open(&led_4);
+    /* Configure board. */
+    bsp_board_init(BSP_INIT_LEDS);
 
-    while(true) {
-        for(unsigned int i = 0; i < UINT_MAX; i++) {
-            char x = 0x30 | (char)(1 & i);
-            drv_write(&led_1, &x, 1);
-            drv_write(&led_2, &x, 1);
-            drv_write(&led_3, &x, 1);
-            drv_write(&led_4, &x, 1);
+    /* Toggle LEDs. */
+    while (true)
+    {
+        for (int i = 0; i < LEDS_NUMBER; i++)
+        {
+            bsp_board_led_invert(i);
             nrf_delay_ms(500);
         }
     }
 }
+
+/**
+ *@}
+ **/

src/application/button/main.c

@@ -1,34 +1,113 @@
+/**
+ * Copyright (c) 2014 - 2019, Nordic Semiconductor ASA
+ *
+ * All rights reserved.
+ *
+ * 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, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, 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 Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ *
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
+ *
+ */
+/** @file
+ * @defgroup pin_change_int_example_main main.c
+ * @{
+ * @ingroup pin_change_int_example
+ * @brief Pin Change Interrupt Example Application main file.
+ *
+ * This file contains the source code for a sample application using interrupts triggered by GPIO pins.
+ *
+ */
+
 #include <stdbool.h>
-#include <stdint.h>
+#include "nrf.h"
+#include "nrf_drv_gpiote.h"
+#include "app_error.h"
+#include "boards.h"
 
-#include "board.h"
-#include "driver.h"
+#ifdef BSP_BUTTON_0
+    #define PIN_IN BSP_BUTTON_0
+#endif
+#ifndef PIN_IN
+    #error "Please indicate input pin"
+#endif
 
+#ifdef BSP_LED_0
+    #define PIN_OUT BSP_LED_0
+#endif
+#ifndef PIN_OUT
+    #error "Please indicate output pin"
+#endif
+
+void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
+{
+    nrf_drv_gpiote_out_toggle(PIN_OUT);
+}
+/**
+ * @brief Function for configuring: PIN_IN pin for input, PIN_OUT pin for output,
+ * and configures GPIOTE to give an interrupt on pin change.
+ */
+static void gpio_init(void)
+{
+    ret_code_t err_code;
+
+    err_code = nrf_drv_gpiote_init();
+    APP_ERROR_CHECK(err_code);
+
+    nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);
+
+    err_code = nrf_drv_gpiote_out_init(PIN_OUT, &out_config);
+    APP_ERROR_CHECK(err_code);
+
+    nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_TOGGLE(true);
+    in_config.pull = NRF_GPIO_PIN_PULLUP;
+
+    err_code = nrf_drv_gpiote_in_init(PIN_IN, &in_config, in_pin_handler);
+    APP_ERROR_CHECK(err_code);
+
+    nrf_drv_gpiote_in_event_enable(PIN_IN, true);
+}
+
+/**
+ * @brief Function for application main entry.
+ */
 int main(void)
 {
-    // bsp_board_init(BSP_INIT_LEDS);
-    drv_open(&led_1);
-    drv_open(&led_2);
-    drv_open(&led_3);
-    drv_open(&led_4);
+    gpio_init();
 
-    drv_open(&button_1);
-    drv_open(&button_2);
-    drv_open(&button_3);
-    drv_open(&button_4);
-
-    while(true) {
-        char x;
-        drv_read(&button_1, &x, 1);
-        drv_write(&led_1, &x, 1);
-
-        drv_read(&button_2, &x, 1);
-        drv_write(&led_2, &x, 1);
-
-        drv_read(&button_3, &x, 1);
-        drv_write(&led_3, &x, 1);
-
-        drv_read(&button_4, &x, 1);
-        drv_write(&led_4, &x, 1);
+    while (true)
+    {
+        // Do nothing.
     }
 }
+
+
+/** @} */

src/driver.c

@@ -1,67 +0,0 @@
-#include <stdlib.h>
-#include <assert.h>
-
-#include "driver.h"
-
-int drv_open(const struct driver *drv)
-{
-    int res = -1;
-    assert(drv != NULL);
-
-    if(drv->fp->open) {
-        res = drv->fp->open(drv);
-    }
-
-    return res;
-}
-
-int drv_close(const struct driver *drv)
-{
-    int res = -1;
-    assert(drv != NULL);
-
-    if(drv->fp->close) {
-        res = drv->fp->close(drv);
-    }
-
-    return res;
-}
-
-int drv_read(const struct driver *drv, char *buffer, unsigned int length)
-{
-    int res = -1;
-    assert(drv != NULL);
-
-    if(drv->fp->read) {
-        res =  drv->fp->read(drv, buffer, length);
-    }
-
-    return res;
-}
-
-int drv_write(const struct driver *drv, const char *buffer, unsigned int length)
-{
-    int res = -1;
-    assert(drv != NULL);
-
-    if(drv->fp->write) {
-        res =  drv->fp->write(drv, buffer, length);
-    }
-
-    return res;
-}
-
-int drv_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, ...)
-{
-    int res = -1;
-    assert(drv != NULL);
-
-    if(drv->fp->ioctl) {
-        va_list args;
-        va_start(args, argc);
-        res = drv->fp->ioctl(drv, cmd, argc, args);
-        va_end(args);
-    }
-
-    return res;
-}

src/platform/nrf52/gpio.c

@@ -1,82 +0,0 @@
-#include <assert.h>
-#include <fcntl.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#include "platform/narf52/narf52.h"
-#include "platform/narf52/narf52_gpio.h"
-
-#include "gpio.h"
-
-int gpio_open(const struct driver *drv)
-{
-    assert(NULL != drv);
-
-    int res = -1;
-    struct narf52_gpio *this = (struct narf52_gpio *)(drv->dev);
-    struct narf52_gpio_type *reg = (struct narf52_gpio_type *)NARF_P0_BASE;
-
-    reg->PIN_CNF[this->pin_number] = ((uint32_t)(this->dir) << 0)
-                                   | ((uint32_t)(this->input) << 1)
-                                   | ((uint32_t)(this->pull) << 2)
-                                   | ((uint32_t)(this->drive) << 8)
-                                   | ((uint32_t)(this->sense) << 16);
-
-    return res;
-}
-
-int gpio_close(const struct driver *drv)
-{
-    assert(NULL != drv);
-    int res = -1;
-    struct gpio *this = (struct gpio *)(drv->dev);
-    this = this;
-
-    return res;
-}
-
-int gpio_read(const struct driver *drv, char *buffer, unsigned int len)
-{
-    assert((NULL != drv) && (buffer != NULL));
-    if(len == 0) {
-        return 0;
-    }
-    struct narf52_gpio *this = (struct narf52_gpio *)(drv->dev);
-    struct narf52_gpio_type *reg = (struct narf52_gpio_type *)NARF_P0_BASE;
-    uint32_t state = ((reg->IN) >> (this->pin_number) & 1UL);
-    if(state) {
-        buffer[0] = 0x31;
-    } else {
-        buffer[0] = 0x30;
-    }
-    return 1;
-}
-
-int gpio_write(const struct driver *drv, const char *buffer, unsigned int len)
-{
-    assert((NULL != drv) && (buffer != NULL));
-    if(len == 0) {
-        return 0;
-    }
-    struct narf52_gpio *this = (struct narf52_gpio *)(drv->dev);
-    struct narf52_gpio_type *reg = (struct narf52_gpio_type *)NARF_P0_BASE;
-    if(buffer[0] != 0x30) {
-        reg->OUTSET = 1  << (this->pin_number);
-    } else {
-        reg->OUTCLR = 1  << (this->pin_number);
-    }
-
-    return 1;
-}
-
-int gpio_ioctl(const struct driver *drv, unsigned int cmd, unsigned int argc, va_list args)
-{
-    assert(drv != 0);
-
-    int res = -1;
-    struct gpio *this = (struct gpio *)(drv->dev);
-    this = this;
-
-    return res;
-}