init

Makefile

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+#############################################################
+# Required variables for each makefile
+# Discard this section from all parent makefiles
+# Expected variables (with automatic defaults):
+#   CSRCS (all "C" files in the dir)
+#   SUBDIRS (all subdirs with a Makefile)
+#   GEN_LIBS - list of libs to be generated ()
+#   GEN_IMAGES - list of object file images to be generated ()
+#   GEN_BINS - list of binaries to be generated ()
+#   COMPONENTS_xxx - a list of libs/objs in the form
+#     subdir/lib to be extracted and rolled up into
+#     a generated lib/image xxx.a ()
+#
+TARGET = eagle
+#FLAVOR = release
+FLAVOR = debug
+
+#EXTRA_CCFLAGS += -u
+
+ifndef PDIR # {
+GEN_IMAGES = eagle.app.v6.out
+GEN_BINS = eagle.app.v6.bin
+SPECIAL_MKTARGETS = $(APP_MKTARGETS)
+SUBDIRS = \
+	user \
+	driver
+endif # } PDIR
+
+APPDIR = .
+LDDIR = ld
+
+CCFLAGS += -Os
+
+TARGET_LDFLAGS = \
+	-nostdlib \
+	-Wl,-EL \
+	--longcalls \
+	--text-section-literals
+
+ifeq ($(FLAVOR),debug)
+    TARGET_LDFLAGS += -g -O2
+endif
+
+ifeq ($(FLAVOR),release)
+    TARGET_LDFLAGS += -g -O0
+endif
+
+COMPONENTS_eagle.app.v6 = \
+	user/libuser.a  \
+	driver/libdriver.a
+
+LINKFLAGS_eagle.app.v6 = \
+	-L../lib \
+	-nostdlib \
+	-T$(LD_FILE) \
+	-Wl,--no-check-sections	\
+	-u call_user_start \
+	-Wl,-static \
+	-Wl,--start-group \
+	-lc \
+	-lgcc \
+	-lhal \
+	-lphy \
+	-lpp \
+	-lnet80211 \
+	-llwip \
+	-lwpa \
+	-lcrypto \
+	-lmain \
+	$(DEP_LIBS_eagle.app.v6)					\
+	-Wl,--end-group
+
+DEPENDS_eagle.app.v6 = \
+                $(LD_FILE) \
+                $(LDDIR)/eagle.rom.addr.v6.ld
+
+#############################################################
+# Configuration i.e. compile options etc.
+# Target specific stuff (defines etc.) goes in here!
+# Generally values applying to a tree are captured in the
+#   makefile at its root level - these are then overridden
+#   for a subtree within the makefile rooted therein
+#
+
+#UNIVERSAL_TARGET_DEFINES =		\
+
+# Other potential configuration flags include:
+#	-DTXRX_TXBUF_DEBUG
+#	-DTXRX_RXBUF_DEBUG
+#	-DWLAN_CONFIG_CCX
+CONFIGURATION_DEFINES =	-DICACHE_FLASH
+
+DEFINES +=				\
+	$(UNIVERSAL_TARGET_DEFINES)	\
+	$(CONFIGURATION_DEFINES)
+
+DDEFINES +=				\
+	$(UNIVERSAL_TARGET_DEFINES)	\
+	$(CONFIGURATION_DEFINES)
+
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
+
+.PHONY: FORCE
+FORCE:

driver/Makefile

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+#############################################################
+# Required variables for each makefile
+# Discard this section from all parent makefiles
+# Expected variables (with automatic defaults):
+#   CSRCS (all "C" files in the dir)
+#   SUBDIRS (all subdirs with a Makefile)
+#   GEN_LIBS - list of libs to be generated ()
+#   GEN_IMAGES - list of images to be generated ()
+#   COMPONENTS_xxx - a list of libs/objs in the form
+#     subdir/lib to be extracted and rolled up into
+#     a generated lib/image xxx.a ()
+#
+ifndef PDIR
+GEN_LIBS = libdriver.a
+endif
+
+
+#############################################################
+# Configuration i.e. compile options etc.
+# Target specific stuff (defines etc.) goes in here!
+# Generally values applying to a tree are captured in the
+#   makefile at its root level - these are then overridden
+#   for a subtree within the makefile rooted therein
+#
+#DEFINES += 
+
+#############################################################
+# Recursion Magic - Don't touch this!!
+#
+# Each subtree potentially has an include directory
+#   corresponding to the common APIs applicable to modules
+#   rooted at that subtree. Accordingly, the INCLUDE PATH
+#   of a module can only contain the include directories up
+#   its parent path, and not its siblings
+#
+# Required for each makefile to inherit from the parent
+#
+
+INCLUDES := $(INCLUDES) -I $(PDIR)include
+INCLUDES += -I ./
+PDIR := ../$(PDIR)
+sinclude $(PDIR)Makefile
+

driver/hw_timer.c

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+/******************************************************************************
+* Copyright 2013-2014 Espressif Systems (Wuxi)
+*
+* FileName: hw_timer.c
+*
+* Description: hw_timer driver
+*
+* Modification history:
+*     2014/5/1, v1.0 create this file.
+*******************************************************************************/
+#include "ets_sys.h"
+#include "os_type.h"
+#include "osapi.h"
+
+#define US_TO_RTC_TIMER_TICKS(t)          \
+    ((t) ?                                   \
+     (((t) > 0x35A) ?                   \
+      (((t)>>2) * ((APB_CLK_FREQ>>4)/250000) + ((t)&0x3) * ((APB_CLK_FREQ>>4)/1000000))  :    \
+      (((t) *(APB_CLK_FREQ>>4)) / 1000000)) :    \
+     0)
+
+#define FRC1_ENABLE_TIMER  BIT7
+#define FRC1_AUTO_LOAD  BIT6
+
+//TIMER PREDIVED MODE
+typedef enum {
+    DIVDED_BY_1 = 0,		//timer clock
+    DIVDED_BY_16 = 4,	//divided by 16
+    DIVDED_BY_256 = 8,	//divided by 256
+} TIMER_PREDIVED_MODE;
+
+typedef enum {			//timer interrupt mode
+    TM_LEVEL_INT = 1,	// level interrupt
+    TM_EDGE_INT   = 0,	//edge interrupt
+} TIMER_INT_MODE;
+
+typedef enum {
+    FRC1_SOURCE = 0,
+    NMI_SOURCE = 1,
+} FRC1_TIMER_SOURCE_TYPE;
+
+/******************************************************************************
+* FunctionName : hw_timer_arm
+* Description  : set a trigger timer delay for this timer.
+* Parameters   : uint32 val :
+in autoload mode
+                        50 ~ 0x7fffff;  for FRC1 source.
+                        100 ~ 0x7fffff;  for NMI source.
+in non autoload mode:
+                        10 ~ 0x7fffff;
+* Returns      : NONE
+*******************************************************************************/
+void  hw_timer_arm(u32 val)
+{
+    RTC_REG_WRITE(FRC1_LOAD_ADDRESS, US_TO_RTC_TIMER_TICKS(val));
+}
+
+static void (* user_hw_timer_cb)(void) = NULL;
+/******************************************************************************
+* FunctionName : hw_timer_set_func
+* Description  : set the func, when trigger timer is up.
+* Parameters   : void (* user_hw_timer_cb_set)(void):
+                        timer callback function,
+* Returns      : NONE
+*******************************************************************************/
+void  hw_timer_set_func(void (* user_hw_timer_cb_set)(void))
+{
+    user_hw_timer_cb = user_hw_timer_cb_set;
+}
+
+static void  hw_timer_isr_cb(void)
+{
+    if (user_hw_timer_cb != NULL) {
+        (*(user_hw_timer_cb))();
+    }
+}
+
+/******************************************************************************
+* FunctionName : hw_timer_init
+* Description  : initilize the hardware isr timer
+* Parameters   :
+FRC1_TIMER_SOURCE_TYPE source_type:
+                        FRC1_SOURCE,    timer use frc1 isr as isr source.
+                        NMI_SOURCE,     timer use nmi isr as isr source.
+u8 req:
+                        0,  not autoload,
+                        1,  autoload mode,
+* Returns      : NONE
+*******************************************************************************/
+void ICACHE_FLASH_ATTR hw_timer_init(FRC1_TIMER_SOURCE_TYPE source_type, u8 req)
+{
+    if (req == 1) {
+        RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
+                      FRC1_AUTO_LOAD | DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
+    } else {
+        RTC_REG_WRITE(FRC1_CTRL_ADDRESS,
+                      DIVDED_BY_16 | FRC1_ENABLE_TIMER | TM_EDGE_INT);
+    }
+
+    if (source_type == NMI_SOURCE) {
+        ETS_FRC_TIMER1_NMI_INTR_ATTACH(hw_timer_isr_cb);
+    } else {
+        ETS_FRC_TIMER1_INTR_ATTACH(hw_timer_isr_cb, NULL);
+    }
+
+    TM1_EDGE_INT_ENABLE();
+    ETS_FRC1_INTR_ENABLE();
+}
+
+//-------------------------------Test Code Below--------------------------------------
+#if 0
+void   hw_test_timer_cb(void)
+{
+    static uint16 j = 0;
+    j++;
+
+    if ((WDEV_NOW() - tick_now2) >= 1000000) {
+        static u32 idx = 1;
+        tick_now2 = WDEV_NOW();
+        os_printf("b%u:%d\n", idx++, j);
+        j = 0;
+    }
+
+    //hw_timer_arm(50);
+}
+
+void ICACHE_FLASH_ATTR user_init(void)
+{
+    hw_timer_init(FRC1_SOURCE, 1);
+    hw_timer_set_func(hw_test_timer_cb);
+    hw_timer_arm(100);
+}
+#endif
+/*
+NOTE:
+1 if use nmi source, for autoload timer , the timer setting val can't be less than 100.
+2 if use nmi source, this timer has highest priority, can interrupt other isr.
+3 if use frc1 source, this timer can't interrupt other isr.
+
+*/
+