started stm32-f103rb-nucleo port

platforms/stm32-f103rb-nucleo/Makefile

@@ -0,0 +1,38 @@
+#
+# Makefile for STM32-F103RB Nucleo board with CC256x Bluetooth modules
+#
+
+BINARY=led_counter
+OPENCM3_DIR = libopencm3
+LDSCRIPT = stm32f1-nucleo.ld
+
+BTSTACK_ROOT = ../..
+
+CORE   = \
+	main.c 										  \
+    ${BTSTACK_ROOT}/src/btstack_memory.c          \
+    ${BTSTACK_ROOT}/src/linked_list.c	          \
+    ${BTSTACK_ROOT}/src/memory_pool.c             \
+    ${BTSTACK_ROOT}/src/run_loop.c		          \
+    ${BTSTACK_ROOT}/src/run_loop_embedded.c
+
+CORE_OBJ   = $(CORE:.c=.o)
+
+OBJS += $(CORE_OBJ)
+
+CFLAGS = -I. -I$(BTSTACK_ROOT)/include -I$(BTSTACK_ROOT)/src
+
+examples: libopencm3/lib/libopencm3_stm32f1.a led_counter.elf
+
+include libopencm3.stm32f1.mk
+
+clean:
+	rm -f *.map *.o *.d *.out *.elf *.bin *.hex ../driver/*.o ../../src/*.o ../src/*.o ../firmware/*.o ${BTSTACK_ROOT}/chipset-cc256x/*.o ${BTSTACK_ROOT}/src/*.o
+
+# git clone and compile libopencm3
+libopencm3/lib/libopencm3_stm32f1.a:
+	git clone git@github.com:libopencm3/libopencm3.git
+	make -C libopencm3
+
+my_flash: $(BINARY).bin
+	st-flash write $(BINARY).bin 0x8000000

platforms/stm32-f103rb-nucleo/README

@@ -0,0 +1,20 @@
+BTstack port for STM32 F103RB Nucleo board and CC256x Bluetooth chipset
+based on GNU Tools for ARM Embedded Processors and libopencm3
+
+GNU Tools for ARM Embedded Processors: 
+https://launchpad.net/gcc-arm-embedded
+
+libopencm3 is automatically build from its git repository
+
+Configuration:
+- LED on PA5
+- Debug UART: USART2 - 9600/8/N/1, TX on PA2
+- Bluetooth: USART3 with Hardware Flowcontrol. TX PB10, RX PB11, CTS PB13 (in), RTS PB14 (out), N_SHUTDOWN PB15
+
+TODO:
+- figure out how to compile multiple examples with single Makefile/folder
+- implement hal_uart_dma.h
+- implement hal_cpu.h
+- create and implement hal_led.h
+- extract classic and le examples into example/embedded
+- use examples from BTSTACK_ROOT/example/embedded directly

platforms/stm32-f103rb-nucleo/btstack-config.h

@@ -0,0 +1,26 @@
+#define EMBEDDED
+
+#define HAVE_INIT_SCRIPT
+#define HAVE_BZERO
+#define HAVE_TICK
+
+#define HAVE_EHCILL
+
+//#define ENABLE_LOG_INFO 
+// #define ENABLE_LOG_ERROR
+
+#define HCI_ACL_PAYLOAD_SIZE 52
+
+// 
+#define MAX_SPP_CONNECTIONS 1
+
+#define MAX_NO_HCI_CONNECTIONS MAX_SPP_CONNECTIONS
+#define MAX_NO_L2CAP_SERVICES  2
+#define MAX_NO_L2CAP_CHANNELS  (1+MAX_SPP_CONNECTIONS)
+#define MAX_NO_RFCOMM_MULTIPLEXERS MAX_SPP_CONNECTIONS
+#define MAX_NO_RFCOMM_SERVICES 1
+#define MAX_NO_RFCOMM_CHANNELS MAX_SPP_CONNECTIONS
+#define MAX_NO_DB_MEM_DEVICE_LINK_KEYS  2
+#define MAX_NO_DB_MEM_DEVICE_NAMES 0
+#define MAX_NO_DB_MEM_SERVICES 1
+

platforms/stm32-f103rb-nucleo/led_counter.c

@@ -0,0 +1,58 @@
+//*****************************************************************************
+//
+// led_counter demo - uses the BTstack run loop to blink an LED
+//
+//*****************************************************************************
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "btstack_memory.h"
+
+#include <btstack/run_loop.h>
+#include "btstack-config.h"
+
+#define HEARTBEAT_PERIOD_MS 1000
+
+static int counter = 0;
+static timer_source_t heartbeat;
+    
+static void register_timer(timer_source_t *timer, uint16_t period){
+    run_loop_set_timer(timer, period);
+    run_loop_add_timer(timer);
+}
+
+static void heartbeat_handler(timer_source_t *ts){
+    // increment counter
+    char lineBuffer[30];
+    sprintf(lineBuffer, "BTstack counter %04u\n", ++counter);
+    printf(lineBuffer);
+    
+    // toggle LED
+    // LED_PORT_OUT = LED_PORT_OUT ^ LED_2;
+
+    // re-register timer
+    register_timer(ts, HEARTBEAT_PERIOD_MS);
+} 
+
+// main
+int btstack_main(void)
+{
+    /// GET STARTED with BTstack ///
+    btstack_memory_init();
+    run_loop_init(RUN_LOOP_EMBEDDED);
+
+    // set one-shot timer
+    heartbeat.process = &heartbeat_handler;
+    register_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
+    
+	printf("Run...\n\r");
+
+    // go!
+    run_loop_execute();	
+    
+    return 0;
+}
+

platforms/stm32-f103rb-nucleo/libopencm3.rules.mk

@@ -0,0 +1,239 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q		:= @
+NULL		:= 2>/dev/null
+endif
+
+###############################################################################
+# Executables
+
+PREFIX		?= arm-none-eabi
+
+CC		:= $(PREFIX)-gcc
+CXX		:= $(PREFIX)-g++
+LD		:= $(PREFIX)-gcc
+AR		:= $(PREFIX)-ar
+AS		:= $(PREFIX)-as
+OBJCOPY		:= $(PREFIX)-objcopy
+OBJDUMP		:= $(PREFIX)-objdump
+GDB		:= $(PREFIX)-gdb
+STFLASH		= $(shell which st-flash)
+STYLECHECK	:= /checkpatch.pl
+STYLECHECKFLAGS	:= --no-tree -f --terse --mailback
+STYLECHECKFILES	:= $(shell find . -name '*.[ch]')
+
+
+###############################################################################
+# Source files
+
+LDSCRIPT	?= $(BINARY).ld
+
+OBJS		+= $(BINARY).o
+
+
+ifeq ($(strip $(OPENCM3_DIR)),)
+# user has not specified the library path, so we try to detect it
+
+# where we search for the library
+LIBPATHS := ./libopencm3 ../../../../libopencm3 ../../../../../libopencm3
+
+OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project))
+OPENCM3_DIR := $(firstword $(dir $(OPENCM3_DIR)))
+
+ifeq ($(strip $(OPENCM3_DIR)),)
+$(warning Cannot find libopencm3 library in the standard search paths.)
+$(error Please specify it through OPENCM3_DIR variable!)
+endif
+endif
+
+ifeq ($(V),1)
+$(info Using $(OPENCM3_DIR) path to library)
+endif
+
+INCLUDE_DIR	= $(OPENCM3_DIR)/include
+LIB_DIR		= $(OPENCM3_DIR)/lib
+SCRIPT_DIR	= $(OPENCM3_DIR)/scripts
+
+###############################################################################
+# C flags
+
+CFLAGS		+= -Os -g
+CFLAGS		+= -Wextra -Wshadow -Wimplicit-function-declaration
+CFLAGS		+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+CFLAGS		+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# C++ flags
+
+CXXFLAGS	+= -Os -g
+CXXFLAGS	+= -Wextra -Wshadow -Wredundant-decls  -Weffc++
+CXXFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# C & C++ preprocessor common flags
+
+CPPFLAGS	+= -MD
+CPPFLAGS	+= -Wall -Wundef
+CPPFLAGS	+= -I$(INCLUDE_DIR) $(DEFS)
+
+###############################################################################
+# Linker flags
+
+LDFLAGS		+= --static -nostartfiles
+LDFLAGS		+= -L$(LIB_DIR)
+LDFLAGS		+= -T$(LDSCRIPT)
+LDFLAGS		+= -Wl,-Map=$(*).map
+LDFLAGS		+= -Wl,--gc-sections
+ifeq ($(V),1)
+LDFLAGS		+= -Wl,--print-gc-sections
+endif
+
+###############################################################################
+# Used libraries
+
+LDLIBS		+= -l$(LIBNAME)
+LDLIBS		+= -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
+
+###############################################################################
+###############################################################################
+###############################################################################
+
+.SUFFIXES: .elf .bin .hex .srec .list .map .images
+.SECONDEXPANSION:
+.SECONDARY:
+
+all: elf
+
+elf: $(BINARY).elf
+bin: $(BINARY).bin
+hex: $(BINARY).hex
+srec: $(BINARY).srec
+list: $(BINARY).list
+
+images: $(BINARY).images
+flash: $(BINARY).flash
+
+%.images: %.bin %.hex %.srec %.list %.map
+	@#printf "*** $* images generated ***\n"
+
+%.bin: %.elf
+	@#printf "  OBJCOPY $(*).bin\n"
+	$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
+
+%.hex: %.elf
+	@#printf "  OBJCOPY $(*).hex\n"
+	$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
+
+%.srec: %.elf
+	@#printf "  OBJCOPY $(*).srec\n"
+	$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
+
+%.list: %.elf
+	@#printf "  OBJDUMP $(*).list\n"
+	$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
+
+%.elf %.map: $(OBJS) $(LDSCRIPT) $(LIB_DIR)/lib$(LIBNAME).a
+	@#printf "  LD      $(*).elf\n"
+	$(Q)$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJS) $(LDLIBS) -o $(*).elf
+
+%.o: %.c
+	@#printf "  CC      $(*).c\n"
+	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).c
+
+%.o: %.cxx
+	@#printf "  CXX     $(*).cxx\n"
+	$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).cxx
+
+%.o: %.cpp
+	@#printf "  CXX     $(*).cpp\n"
+	$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $(*).o -c $(*).cpp
+
+# clean:
+#	@#printf "  CLEAN\n"
+#	$(Q)$(RM) *.o *.d *.elf *.bin *.hex *.srec *.list *.map
+
+stylecheck: $(STYLECHECKFILES:=.stylecheck)
+styleclean: $(STYLECHECKFILES:=.styleclean)
+
+# the cat is due to multithreaded nature - we like to have consistent chunks of text on the output
+%.stylecheck: %
+	$(Q)$(SCRIPT_DIR)$(STYLECHECK) $(STYLECHECKFLAGS) $* > $*.stylecheck; \
+		if [ -s $*.stylecheck ]; then \
+			cat $*.stylecheck; \
+		else \
+			rm -f $*.stylecheck; \
+		fi;
+
+%.styleclean:
+	$(Q)rm -f $*.stylecheck;
+
+
+%.stlink-flash: %.bin
+	@printf "  FLASH  $<\n"
+	$(Q)$(STFLASH) write $(*).bin 0x8000000
+
+ifeq ($(STLINK_PORT),)
+ifeq ($(BMP_PORT),)
+ifeq ($(OOCD_SERIAL),)
+%.flash: %.hex
+	@printf "  FLASH   $<\n"
+	@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+	$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+		    -f board/$(OOCD_BOARD).cfg \
+		    -c "init" -c "reset init" \
+		    -c "flash write_image erase $(*).hex" \
+		    -c "reset" \
+		    -c "shutdown" $(NULL)
+else
+%.flash: %.hex
+	@printf "  FLASH   $<\n"
+	@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+	$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+		    -f board/$(OOCD_BOARD).cfg \
+		    -c "ft2232_serial $(OOCD_SERIAL)" \
+		    -c "init" -c "reset init" \
+		    -c "flash write_image erase $(*).hex" \
+		    -c "reset" \
+		    -c "shutdown" $(NULL)
+endif
+else
+%.flash: %.elf
+	@printf "  GDB   $(*).elf (flash)\n"
+	$(Q)$(GDB) --batch \
+		   -ex 'target extended-remote $(BMP_PORT)' \
+		   -x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
+		   $(*).elf
+endif
+else
+%.flash: %.elf
+	@printf "  GDB   $(*).elf (flash)\n"
+	$(Q)$(GDB) --batch \
+		   -ex 'target extended-remote $(STLINK_PORT)' \
+		   -x $(SCRIPT_DIR)/stlink_flash.scr \
+		   $(*).elf
+endif
+
+.PHONY: images clean stylecheck styleclean elf bin hex srec list
+
+-include $(OBJS:.o=.d)

platforms/stm32-f103rb-nucleo/libopencm3.stm32f1.mk

@@ -0,0 +1,44 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= opencm3_stm32f1
+DEFS		= -DSTM32F1
+
+FP_FLAGS	?= -msoft-float
+ARCH_FLAGS	= -mthumb -mcpu=cortex-m3 $(FP_FLAGS) -mfix-cortex-m3-ldrd
+
+################################################################################
+# OpenOCD specific variables
+
+OOCD		?= openocd
+OOCD_INTERFACE	?= flossjtag
+OOCD_BOARD	?= olimex_stm32_h103
+
+################################################################################
+# Black Magic Probe specific variables
+# Set the BMP_PORT to a serial port and then BMP is used for flashing
+BMP_PORT	?=
+
+################################################################################
+# texane/stlink specific variables
+#STLINK_PORT	?= :4242
+
+
+include libopencm3.rules.mk

platforms/stm32-f103rb-nucleo/main.c

@@ -0,0 +1,141 @@
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+#include <libopencm3/stm32/usart.h>
+#include <libopencm3/cm3/nvic.h>
+#include <libopencm3/cm3/systick.h>
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+
+// Configuration
+// LED2 on PA5
+// Debug: USART2, TX on PA2
+// Bluetooth: USART3. TX PB10, RX PB11, CTS PB13 (in), RTS PB14 (out), N_SHUTDOWN PB15
+#define GPIO_LED2 GPIO5
+#define USART_CONSOLE USART2
+#define GPIO_BT_N_SHUTDOWN GPIO15
+
+// btstack code starts there
+void btstack_main(void);
+
+// hal_tick.h inmplementation
+#include <btstack/hal_tick.h>
+
+static void dummy_handler(void);
+static void (*tick_handler)(void) = &dummy_handler;
+
+static void dummy_handler(void){};
+
+void hal_tick_init(void){
+	/* clock rate / 1000 to get 1mS interrupt rate */
+	systick_set_reload(8000);
+	systick_set_clocksource(STK_CSR_CLKSOURCE_AHB);
+	systick_counter_enable();
+	systick_interrupt_enable();
+}
+
+void hal_tick_set_handler(void (*handler)(void)){
+    if (handler == NULL){
+        tick_handler = &dummy_handler;
+        return;
+    }
+    tick_handler = handler;
+}
+
+int  hal_tick_get_tick_period_in_ms(void){
+    return 1;
+}
+
+void sys_tick_handler(void)
+{
+	(*tick_handler)();
+}
+
+// hal_cpu.h implementation
+#include <btstack/hal_cpu.h>
+
+void hal_cpu_disable_irqs(void){
+
+}
+void hal_cpu_enable_irqs(void){
+
+}
+void hal_cpu_enable_irqs_and_sleep(void){
+
+}
+
+//
+
+/**
+ * Use USART_CONSOLE as a console.
+ * This is a syscall for newlib
+ * @param file
+ * @param ptr
+ * @param len
+ * @return
+ */
+int _write(int file, char *ptr, int len);
+int _write(int file, char *ptr, int len)
+{
+	int i;
+
+	if (file == STDOUT_FILENO || file == STDERR_FILENO) {
+		for (i = 0; i < len; i++) {
+			if (ptr[i] == '\n') {
+				usart_send_blocking(USART_CONSOLE, '\r');
+			}
+			usart_send_blocking(USART_CONSOLE, ptr[i]);
+		}
+		return i;
+	}
+	errno = EIO;
+	return -1;
+}
+
+static void clock_setup(void)
+{
+	/* Enable clocks for GPIO port A (for GPIO_USART1_TX) and USART1 + USART2. */
+	/* needs to be done before initializing other peripherals */
+	rcc_periph_clock_enable(RCC_GPIOA);
+	rcc_periph_clock_enable(RCC_GPIOB);
+	rcc_periph_clock_enable(RCC_USART2);
+	rcc_periph_clock_enable(RCC_USART3);
+}
+
+static void gpio_setup(void)
+{
+	/* Set GPIO5 (in GPIO port A) to 'output push-pull'. [LED] */
+	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO_LED2);
+}
+
+void usart_setup(void);
+void usart_setup(void)
+{
+	/* Setup GPIO pin GPIO_USART2_TX/GPIO2 on GPIO port A for transmit. */
+	gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
+
+	/* Setup UART parameters. */
+	usart_set_baudrate(USART2, 9600);
+	usart_set_databits(USART2, 8);
+	usart_set_stopbits(USART2, USART_STOPBITS_1);
+	usart_set_mode(USART2, USART_MODE_TX);
+	usart_set_parity(USART2, USART_PARITY_NONE);
+	usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
+
+	/* Finally enable the USART. */
+	usart_enable(USART2);
+}
+
+int main(void)
+{
+	clock_setup();
+	gpio_setup();
+	usart_setup();
+	hal_tick_init();
+
+	// hand over to btstack embedded code 
+	btstack_main();
+
+	return 0;
+}

platforms/stm32-f103rb-nucleo/stm32f1-nucleo.ld

@@ -0,0 +1,7 @@
+MEMORY
+{
+    rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K
+    ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K
+}
+
+INCLUDE libopencm3_stm32f1.ld