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‎.gitignore

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*.swp
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firmware/*
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build/*

‎Makefile

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# tnx to mamalala
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# Changelog
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# Changed the variables to include the header file directory
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# Added global var for the XTENSA tool root
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#
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# This make file still needs some work.
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#
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#
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# Output directors to store intermediate compiled files
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# relative to the project directory
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BUILD_BASE = build
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FW_BASE = firmware
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# Base directory for the compiler
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#XTENSA_TOOLS_ROOT ?= /opt/Espressif/crosstool-NG/builds/xtensa-lx106-elf/bin
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XTENSA_TOOLS_ROOT ?= /home/main/esp8266/esp-open-sdk/xtensa-lx106-elf/bin
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# base directory of the ESP8266 SDK package, absolute
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#SDK_BASE ?= /opt/Espressif/ESP8266_SDK
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SDK_BASE ?= /home/main/esp8266/esp-open-sdk/sdk
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#Esptool.py path and port
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ESPTOOL ?= /home/main/esp8266/esp-open-sdk/esptool/esptool.py
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ESPPORT ?= /dev/ttyUSB0
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# name for the target project
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TARGET = app
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# which modules (subdirectories) of the project to include in compiling
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MODULES = driver user softuart
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EXTRA_INCDIR = include /opt/Espressif/include
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# libraries used in this project, mainly provided by the SDK
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LIBS = c gcc hal pp phy net80211 lwip wpa main
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# compiler flags using during compilation of source files
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CFLAGS = -Os -g -O2 -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -D__ets__ -DICACHE_FLASH
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# linker flags used to generate the main object file
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LDFLAGS = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static
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# linker script used for the above linkier step
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LD_SCRIPT = eagle.app.v6.ld
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# various paths from the SDK used in this project
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SDK_LIBDIR = lib
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SDK_LDDIR = ld
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SDK_INCDIR = include include/json
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# we create two different files for uploading into the flash
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# these are the names and options to generate them
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FW_FILE_1 = 0x00000
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FW_FILE_1_ARGS = -bo $@ -bs .text -bs .data -bs .rodata -bc -ec
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FW_FILE_2 = 0x40000
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FW_FILE_2_ARGS = -es .irom0.text $@ -ec
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# select which tools to use as compiler, librarian and linker
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CC := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
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AR := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-ar
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LD := $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
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####
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#### no user configurable options below here
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####
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SRC_DIR := $(MODULES)
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BUILD_DIR := $(addprefix $(BUILD_BASE)/,$(MODULES))
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SDK_LIBDIR := $(addprefix $(SDK_BASE)/,$(SDK_LIBDIR))
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SDK_INCDIR := $(addprefix -I$(SDK_BASE)/,$(SDK_INCDIR))
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SRC := $(foreach sdir,$(SRC_DIR),$(wildcard $(sdir)/*.c))
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OBJ := $(patsubst %.c,$(BUILD_BASE)/%.o,$(SRC))
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LIBS := $(addprefix -l,$(LIBS))
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APP_AR := $(addprefix $(BUILD_BASE)/,$(TARGET)_app.a)
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TARGET_OUT := $(addprefix $(BUILD_BASE)/,$(TARGET).out)
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LD_SCRIPT := $(addprefix -T$(SDK_BASE)/$(SDK_LDDIR)/,$(LD_SCRIPT))
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INCDIR := $(addprefix -I,$(SRC_DIR))
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EXTRA_INCDIR := $(addprefix -I,$(EXTRA_INCDIR))
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MODULE_INCDIR := $(addsuffix /include,$(INCDIR))
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FW_FILE_1 := $(addprefix $(FW_BASE)/,$(FW_FILE_1).bin)
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FW_FILE_2 := $(addprefix $(FW_BASE)/,$(FW_FILE_2).bin)
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V ?= $(VERBOSE)
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ifeq ("$(V)","1")
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Q :=
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vecho := @true
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else
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Q := @
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vecho := @echo
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endif
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vpath %.c $(SRC_DIR)
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define compile-objects
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$1/%.o: %.c
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$(vecho) "CC $$<"
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$(Q) $(CC) $(INCDIR) $(MODULE_INCDIR) $(EXTRA_INCDIR) $(SDK_INCDIR) $(CFLAGS) -c $$< -o $$@
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endef
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.PHONY: all checkdirs flash clean
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all: checkdirs $(TARGET_OUT) $(FW_FILE_1) $(FW_FILE_2)
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$(FW_FILE_1): $(TARGET_OUT)
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$(vecho) "FW $@"
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$(ESPTOOL) elf2image $< -o $(FW_BASE)/
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$(FW_FILE_2): $(TARGET_OUT)
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$(vecho) "FW $@"
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$(ESPTOOL) elf2image $< -o $(FW_BASE)/
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$(TARGET_OUT): $(APP_AR)
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$(vecho) "LD $@"
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$(Q) $(LD) -L$(SDK_LIBDIR) $(LD_SCRIPT) $(LDFLAGS) -Wl,--start-group $(LIBS) $(APP_AR) -Wl,--end-group -o $@
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$(APP_AR): $(OBJ)
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$(vecho) "AR $@"
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$(Q) $(AR) cru $@ $^
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checkdirs: $(BUILD_DIR) $(FW_BASE)
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$(BUILD_DIR):
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$(Q) mkdir -p $@
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firmware:
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$(Q) mkdir -p $@
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flash: firmware/0x00000.bin firmware/0x40000.bin
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-$(ESPTOOL) --baud 115200 --port $(ESPPORT) write_flash 0x00000 firmware/0x00000.bin 0x40000 firmware/0x40000.bin
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clean:
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$(Q) rm -f $(APP_AR)
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$(Q) rm -f $(TARGET_OUT)
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$(Q) rm -rf $(BUILD_DIR)
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$(Q) rm -rf $(BUILD_BASE)
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$(Q) rm -f $(FW_FILE_1)
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$(Q) rm -f $(FW_FILE_2)
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$(Q) rm -rf $(FW_BASE)
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$(foreach bdir,$(BUILD_DIR),$(eval $(call compile-objects,$(bdir))))

‎softuart/include/softuart.h

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#ifndef SOFTUART_H_
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#define SOFTUART_H_
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#include "user_interface.h"
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#define SOFTUART_MAX_RX_BUFF 64
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#define SOFTUART_GPIO_COUNT 16
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typedef struct softuart_pin_t {
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uint8_t gpio_id;
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uint32_t gpio_mux_name;
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uint8_t gpio_func;
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} softuart_pin_t;
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typedef struct softuart_buffer_t {
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char receive_buffer[SOFTUART_MAX_RX_BUFF];
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uint8_t receive_buffer_tail;
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uint8_t receive_buffer_head;
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uint8_t buffer_overflow;
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} softuart_buffer_t;
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typedef struct {
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softuart_pin_t pin_rx;
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softuart_pin_t pin_tx;
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volatile softuart_buffer_t buffer;
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uint16_t bit_time;
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} Softuart;
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BOOL Softuart_Available(Softuart *s);
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void Softuart_Intr_Handler(Softuart *s);
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//define mapping from pin to functio mode
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typedef struct {
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uint32_t gpio_mux_name;
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uint8_t gpio_func;
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} softuart_reg_t;
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#endif /* SOFTUART_H_ */

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