Changeset - 28c7e1414fd9
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0 3 0
Ethan Zonca - 10 years ago 2016-03-25 23:06:22
ez@ethanzonca.com
Disabled link-time optimization which fixed jump to rst vector on encode, downside is code size grew
3 files changed with 20 insertions and 58 deletions:
0 comments (0 inline, 0 general)
Makefile
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# STM32F0xx Makefile
 
# #####################################
 
#
 
# Part of the uCtools project
 
# uctools.github.com
 
#
 
#######################################
 
# user configuration:
 
#######################################
 

	
 
BUILD_NUMBER ?= 0
 

	
 
# SOURCES: list of sources in the user application
 
SOURCES = main.c system_stm32f0xx.c adc.c dma.c gpio.c i2c.c interrupts.c usart.c  gps.c
 

	
 
# TARGET: name of the user application
 
TARGET = wsprhab-b$(BUILD_NUMBER)
 

	
 
# BUILD_DIR: directory to place output files in
 
BUILD_DIR = build
 

	
 
# LD_SCRIPT: location of the linker script
 
LD_SCRIPT = STM32F031G6_FLASH.ld
 

	
 
# USER_DEFS user defined macros
 
USER_DEFS = -D HSE_VALUE=16000000
 
USER_DEFS += -D WSPRHAB_BUILD_NUMBER=$(BUILD_NUMBER)
 

	
 
# USER_INCLUDES: user defined includes
 
USER_INCLUDES =
 

	
 
# USB_INCLUDES: includes for the usb library
 
# USB_INCLUDES = -IMiddlewares/ST/STM32_USB_Device_Library/Core/Inc
 
#USB_INCLUDES += -IMiddlewares/ST/STM32_USB_Device_Library/Class/CDC/Inc
 

	
 
SI5351_INCLUDES = -Ilib/si5351
 

	
 
JTENCODE_INCLUDES = -Ilib/jtencode
 

	
 
# USER_CFLAGS: user C flags (enable warnings, enable debug info)
 
USER_CFLAGS = -Wall -g -ffunction-sections -fdata-sections -Os -fno-common --function-sections -fdata-sections -flto
 
USER_CFLAGS = -Wall -g -ffunction-sections -fdata-sections -Os -fno-common --function-sections -fdata-sections 
 
#USER_CFLAGS += -flto
 

	
 
# USER_LDFLAGS:  user LD flags
 
USER_LDFLAGS = -flto -fno-exceptions -ffunction-sections -fdata-sections -Wl,--gc-sections 
 
USER_LDFLAGS = -fno-exceptions -ffunction-sections -fdata-sections -Wl,--gc-sections 
 
#USER_LDFLAGS += -flto
 
USER_LDFLAGS += --static
 
#USER_LDFLAGS += -nostartfiles 
 

	
 
# TARGET_DEVICE: device to compile for
 
TARGET_DEVICE = STM32F031x6
 

	
 
#######################################
 
# end of user configuration
 
#######################################
 
#
 
#######################################
 
# binaries
 
#######################################
 
CC = arm-none-eabi-gcc
 
AR = arm-none-eabi-ar
 
RANLIB = arm-none-eabi-ranlib
 
SIZE = arm-none-eabi-size
 
OBJCOPY = arm-none-eabi-objcopy
 
MKDIR = mkdir -p
 
#######################################
 

	
 
# core and CPU type for Cortex M0
 
# ARM core type (CORE_M0, CORE_M3)
 
CORE = CORE_M0
 
# ARM CPU type (cortex-m0, cortex-m3)
 
CPU = cortex-m0
 

	
 
# where to build STM32Cube
 
CUBELIB_BUILD_DIR = $(BUILD_DIR)/STM32Cube
 

	
 
# various paths within the STmicro library
 
CMSIS_PATH = drivers/CMSIS
 
CMSIS_DEVICE_PATH = $(CMSIS_PATH)/Device/ST/STM32F0xx
 
DRIVER_PATH = drivers/STM32F0xx_HAL_Driver
 

	
 

	
 
# includes for gcc
 
INCLUDES = -I$(CMSIS_PATH)/Include
 
INCLUDES += -I$(CMSIS_DEVICE_PATH)/Include
 
INCLUDES += -I$(DRIVER_PATH)/Inc
 
INCLUDES += -Iinc
 
#INCLUDES += $(USB_INCLUDES)
 
INCLUDES += $(USER_INCLUDES)
 
INCLUDES += $(SI5351_INCLUDES)
 
INCLUDES += $(JTENCODE_INCLUDES)
 

	
 

	
 
# macros for gcc
 
DEFS = -D$(CORE) $(USER_DEFS) -D$(TARGET_DEVICE)
 

	
 
# compile gcc flags
 
CFLAGS = $(DEFS) $(INCLUDES)
 
# EMZ: Maybe remove -msoft-float
 
CFLAGS += -mcpu=$(CPU) -mthumb -msoft-float
 
CFLAGS += $(USER_CFLAGS)
 

	
 
# default action: build the user application
 
all: $(BUILD_DIR)/$(TARGET).bin $(BUILD_DIR)/$(TARGET).hex
 

	
 
flash: all
 
	st-flash write $(BUILD_DIR)/$(TARGET).bin 0x8000000
 

	
 

	
 
#######################################
 
# build the st micro peripherial library
 
# (drivers and CMSIS)
 
#######################################
 

	
 
CUBELIB = $(CUBELIB_BUILD_DIR)/libstm32cube.a
 

	
 
# List of stm32 driver objects
 
CUBELIB_DRIVER_OBJS = $(addprefix $(CUBELIB_BUILD_DIR)/, $(patsubst %.c, %.o, $(notdir $(wildcard $(DRIVER_PATH)/Src/*.c))))
 

	
 
# shortcut for building core library (make cubelib)
 
cubelib: $(CUBELIB)
 

	
 
$(CUBELIB): $(CUBELIB_DRIVER_OBJS)
 
	$(AR) rv $@ $(CUBELIB_DRIVER_OBJS)
 
	$(RANLIB) $@
 

	
 
$(CUBELIB_BUILD_DIR)/%.o: $(DRIVER_PATH)/Src/%.c | $(CUBELIB_BUILD_DIR)
 
	$(CC) -c $(CFLAGS) -o $@ $^
 

	
 
$(CUBELIB_BUILD_DIR):
 
	$(MKDIR) $@
 

	
 
#######################################
 
# build the USB library
 
#######################################
 
#USB_MIDDLEWARE_PATH = ./Middlewares/ST/STM32_USB_Device_Library/
 
#USB_BUILD_DIR = $(BUILD_DIR)/usb
 
#USB_SOURCES += usbd_ctlreq.c usbd_ioreq.c usbd_core.c usbd_cdc.c
 
# list of usb library objects
 
#USB_OBJECTS += $(addprefix $(USB_BUILD_DIR)/,$(notdir $(USB_SOURCES:.c=.o)))
 

	
 
#usb: $(USB_OBJECTS)
 

	
 
#$(USB_BUILD_DIR)/%.o: $(USB_MIDDLEWARE_PATH)/Core/Src/%.c | $(USB_BUILD_DIR)
 
#	$(CC) -Os $(CFLAGS) -c -o $@ $^
 
#
 
#$(USB_BUILD_DIR)/%.o: $(USB_MIDDLEWARE_PATH)/Class/CDC/Src/%.c | $(USB_BUILD_DIR)
 
#	$(CC) -Os $(CFLAGS) -c -o $@ $^
 

	
 
#$(USB_BUILD_DIR):
 
#	@echo $(USB_BUILD_DIR)
 
#	$(MKDIR) $@
 

	
 

	
 
#######################################
 
# build the user libraries
 
#######################################
 

	
 
# si5351
 
SI5351_PATH = ./lib/si5351/
 
SI5351_BUILD_DIR = $(BUILD_DIR)/si5351
 
SI5351_SOURCES += si5351.c
 

	
 
SI5351_OBJECTS += $(addprefix $(SI5351_BUILD_DIR)/,$(notdir $(SI5351_SOURCES:.c=.o)))
 

	
 
si5351: $(SI5351_OBJECTS)
 

	
 
$(SI5351_BUILD_DIR)/%.o: $(SI5351_PATH)/%.c | $(SI5351_BUILD_DIR)
 
	$(CC) -Os $(CFLAGS) -c -o $@ $^
 

	
 
$(SI5351_BUILD_DIR):
 
	@echo $(SI5351_BUILD_DIR)
 
	$(MKDIR) $@
 

	
 
# jtencode
 
JTENCODE_PATH = ./lib/jtencode/
 
JTENCODE_BUILD_DIR = $(BUILD_DIR)/jtencode
 
JTENCODE_SOURCES += jtencode.c init_rs_int.c encode_rs_int.c
 

	
 
JTENCODE_OBJECTS += $(addprefix $(JTENCODE_BUILD_DIR)/,$(notdir $(JTENCODE_SOURCES:.c=.o)))
 

	
 
jtencode: $(JTENCODE_OBJECTS)
 

	
 
$(JTENCODE_BUILD_DIR)/%.o: $(JTENCODE_PATH)/%.c | $(JTENCODE_BUILD_DIR)
 
	$(CC) -Os $(CFLAGS) -c -o $@ $^
 

	
 
$(JTENCODE_BUILD_DIR):
 
	@echo $(JTENCODE_BUILD_DIR)
 
	$(MKDIR) $@
 

	
 

	
 

	
 
#######################################
 
# build the user application
 
#######################################
 

	
 
# list of user program objects
 
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(SOURCES:.c=.o)))
 
# add an object for the startup code
 
OBJECTS += $(BUILD_DIR)/startup_stm32f031x6.o
 

	
 
# use the periphlib core library, plus generic ones (libc, libm, libnosys)
 
LIBS = -lstm32cube -lc -lm -lnosys
 
LDFLAGS = -T $(LD_SCRIPT) -L $(CUBELIB_BUILD_DIR) -static $(LIBS) $(USER_LDFLAGS)
 

	
 
$(BUILD_DIR)/$(TARGET).hex: $(BUILD_DIR)/$(TARGET).elf
 
	$(OBJCOPY) -O ihex $(BUILD_DIR)/$(TARGET).elf $@
 

	
 
$(BUILD_DIR)/$(TARGET).bin: $(BUILD_DIR)/$(TARGET).elf
 
	$(OBJCOPY) -O binary $(BUILD_DIR)/$(TARGET).elf $@
 

	
 
#$(USB_OBJECTS) -o $(USB_OBJECTS)
 
$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) $(SI5351_OBJECTS) $(JTENCODE_OBJECTS) $(CUBELIB)
 
	$(CC) -o $@ $(CFLAGS) $(OBJECTS) $(SI5351_OBJECTS) $(JTENCODE_OBJECTS)  \
 
		$(LDFLAGS) -Xlinker \
 
		-Map=$(BUILD_DIR)/$(TARGET).map
 
	$(SIZE) $@
 

	
 
$(BUILD_DIR)/%.o: src/%.c | $(BUILD_DIR)
 
	$(CC) $(CFLAGS) -Os -c -o $@ $^
 

	
 
$(BUILD_DIR)/%.o: src/%.s | $(BUILD_DIR)
 
	$(CC) $(CFLAGS) -Os -c -o $@ $^
 

	
 
$(BUILD_DIR):
 
	$(MKDIR) $@
 

	
 
# delete all user application files, keep the libraries
 
clean:
 
		-rm $(BUILD_DIR)/*.o
 
		-rm $(BUILD_DIR)/*.elf
 
		-rm $(BUILD_DIR)/*.hex
 
		-rm $(BUILD_DIR)/*.map
 
		-rm $(BUILD_DIR)/*.bin
 

	
 
.PHONY: clean all cubelib
STM32F031G6_FLASH.ld
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/*
 
*****************************************************************************
 
**
 
**  File        : stm32_flash.ld
 
**
 
**  Abstract    : Linker script for STM32F031G6 Device with
 
**                32KByte FLASH, 4KByte RAM
 
**
 
**                Set heap size, stack size and stack location according
 
**                to application requirements.
 
**
 
**                Set memory bank area and size if external memory is used.
 
**
 
**  Target      : STMicroelectronics STM32
 
**
 
**  Environment : Atollic TrueSTUDIO(R)
 
**
 
**  Distribution: The file is distributed “as is,” without any warranty
 
**                of any kind.
 
**
 
**  (c)Copyright Atollic AB.
 
**  You may use this file as-is or modify it according to the needs of your
 
**  project. This file may only be built (assembled or compiled and linked)
 
**  using the Atollic TrueSTUDIO(R) product. The use of this file together
 
**  with other tools than Atollic TrueSTUDIO(R) is not permitted.
 
**
 
*****************************************************************************
 
*/
 

	
 
/* Entry Point */
 
ENTRY(Reset_Handler)
 

	
 
/* Highest address of the user mode stack */
 
_estack = 0x20001000;    /* end of RAM */
 

	
 
/* Generate a link error if heap and stack don't fit into RAM */
 
_Min_Heap_Size = 0;      /* required amount of heap  */
 
_Min_Stack_Size = 0x300; /* required amount of stack */
 
_Min_Stack_Size = 0x400; /* required amount of stack */
 

	
 
/* Specify the memory areas */
 
MEMORY
 
{
 
FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 32K
 
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 4K
 
}
 

	
 
/* Define output sections */
 
SECTIONS
 
{
 
  /* The startup code goes first into FLASH */
 
  .isr_vector :
 
  {
 
    . = ALIGN(4);
 
    KEEP(*(.isr_vector)) /* Startup code */
 
    . = ALIGN(4);
 
  } >FLASH
 

	
 
  /* The program code and other data goes into FLASH */
 
  .text :
 
  {
 
    . = ALIGN(4);
 
    *(.text)           /* .text sections (code) */
 
    *(.text*)          /* .text* sections (code) */
 
    *(.glue_7)         /* glue arm to thumb code */
 
    *(.glue_7t)        /* glue thumb to arm code */
 
    *(.eh_frame)
 

	
 
    KEEP (*(.init))
 
    KEEP (*(.fini))
 

	
 
    . = ALIGN(4);
 
    _etext = .;        /* define a global symbols at end of code */
 
  } >FLASH
 

	
 
  /* Constant data goes into FLASH */
 
  .rodata :
 
  {
 
    . = ALIGN(4);
 
    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
 
    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
 
    . = ALIGN(4);
 
  } >FLASH
 

	
 
  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
 
  .ARM : {
 
    __exidx_start = .;
 
    *(.ARM.exidx*)
 
    __exidx_end = .;
 
  } >FLASH
 

	
 
  .preinit_array     :
 
  {
 
    PROVIDE_HIDDEN (__preinit_array_start = .);
 
    KEEP (*(.preinit_array*))
 
    PROVIDE_HIDDEN (__preinit_array_end = .);
 
  } >FLASH
 
  .init_array :
 
  {
 
    PROVIDE_HIDDEN (__init_array_start = .);
 
    KEEP (*(SORT(.init_array.*)))
 
    KEEP (*(.init_array*))
 
    PROVIDE_HIDDEN (__init_array_end = .);
 
  } >FLASH
 
  .fini_array :
 
  {
 
    PROVIDE_HIDDEN (__fini_array_start = .);
 
    KEEP (*(SORT(.fini_array.*)))
 
    KEEP (*(.fini_array*))
 
    PROVIDE_HIDDEN (__fini_array_end = .);
 
  } >FLASH
 

	
 
  /* used by the startup to initialize data */
 
  _sidata = LOADADDR(.data);
 

	
 
  /* Initialized data sections goes into RAM, load LMA copy after code */
 
  .data : 
 
  {
 
    . = ALIGN(4);
 
    _sdata = .;        /* create a global symbol at data start */
 
    *(.data)           /* .data sections */
 
    *(.data*)          /* .data* sections */
 

	
 
    . = ALIGN(4);
 
    _edata = .;        /* define a global symbol at data end */
 
  } >RAM AT> FLASH
 

	
 
  
 
  /* Uninitialized data section */
 
  . = ALIGN(4);
 
  .bss :
 
  {
 
    /* This is used by the startup in order to initialize the .bss secion */
 
    _sbss = .;         /* define a global symbol at bss start */
 
    __bss_start__ = _sbss;
 
    *(.bss)
 
    *(.bss*)
 
    *(COMMON)
 

	
 
    . = ALIGN(4);
 
    _ebss = .;         /* define a global symbol at bss end */
 
    __bss_end__ = _ebss;
 
  } >RAM
 

	
 
  /* User_heap_stack section, used to check that there is enough RAM left */
 
  ._user_heap_stack :
 
  {
 
    . = ALIGN(4);
 
    PROVIDE ( end = . );
 
    PROVIDE ( _end = . );
 
    . = . + _Min_Heap_Size;
 
    . = . + _Min_Stack_Size;
 
    . = ALIGN(4);
 
  } >RAM
 

	
 
  
 

	
 
  /* Remove information from the standard libraries */
 
  /DISCARD/ :
 
  {
 
    libc.a ( * )
 
    libm.a ( * )
 
    libgcc.a ( * )
 
  }
 

	
 
  .ARM.attributes 0 : { *(.ARM.attributes) }
 
}
src/main.c
Show inline comments
 
//
 
// WSPRHAB: Minimal high-altitude balloon tracker with WSPR telemetry
 
//
 
 
#include "stm32f0xx_hal.h"
 
#include "si5351.h"
 
#include "jtencode.h"
 
#include "adc.h"
 
#include "dma.h"
 
#include "i2c.h"
 
#include "usart.h"
 
#include "gpio.h"
 
#include "gps.h"
 
 
 
void sysclk_init(void);
 
 
//#define WSPR_DEFAULT_FREQ 14097100UL
 
#define WSPR_DEFAULT_FREQ 10140100UL
 
#define WSPR_TONE_SPACING 146 // ~1.46 Hz
 
#define WSPR_CTC 10672 // CTC value for WSPR
 
 
char call[7] = "KD8TDF";
 
char loc[5] = "EN72";
 
uint8_t dbm = 10;
 
uint8_t tx_buffer[255];
 
 
 
uint32_t freq = WSPR_DEFAULT_FREQ;
 
uint8_t symbol_count = WSPR_SYMBOL_COUNT;
 
uint16_t ctc = WSPR_CTC;
 
uint16_t tone_spacing = WSPR_TONE_SPACING;
 
volatile uint8_t proceed = 0;
 
 
void encode_wspr(void)
 
{
 
    uint8_t i;
 
    //for(i=0; i<255; i++)
 
    //    tx_buffer[i] = 0;
 
 
    // Encode message to transmit
 
    wspr_encode(call, loc, dbm, tx_buffer);
 
 
    // Key transmitter
 
    si5351_output_enable(SI5351_CLK0, 1);
 
 
    //si5351_output_enable(SI5351_CLK0, 1);
 
 
    // Loop through and transmit symbols TODO: Do this from an ISR or ISR-triggered main loop function call (optimal)
 
    uint8_t i;
 
    for(i=0; i<symbol_count; i++)
 
    {
 
 
        uint32_t freq2 = (freq * 100) + (tx_buffer[i] * tone_spacing);
 
        si5351_set_freq(freq2, 0, SI5351_CLK0);
 
        HAL_GPIO_TogglePin(LED_BLUE);
 
 
          //si5351_set_freq((freq * 100) + (tx_buffer[i] * tone_spacing), 0, SI5351_CLK0);
 
          //HAL_Delay(300);
 
          proceed = 0;
 
          while(!proceed);
 
        proceed = 0;
 
        while(!proceed);
 
    }
 
        si5351_output_enable(SI5351_CLK0, 0);
 
 
    // Disable transmitter
 
    si5351_output_enable(SI5351_CLK0, 0);
 
}
 
 
    TIM_HandleTypeDef htim1;
 
TIM_HandleTypeDef htim1;
 
 
int main(void)
 
{
 
    HAL_Init();
 
 
    sysclk_init();
 
    gpio_init();
 
    dma_init();
 
    adc_init();
 
    i2c_init();
 
 
    HAL_GPIO_WritePin(OSC_NOTEN, 0);
 
    HAL_GPIO_WritePin(TCXO_EN, 1);
 
 
 
    // Start timer for WSPR
 
    __TIM1_CLK_ENABLE();
 
    TIM_MasterConfigTypeDef sMasterConfig;
 
    TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;
 
    TIM_OC_InitTypeDef sConfigOC;
 
 
    htim1.Instance = TIM1;
 
    htim1.Init.Prescaler = 512; // gives 64uS ticks from 8MHz ahbclk
 
    htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
 
    htim1.Init.Period = ctc; // Count up to this value (how many 64uS ticks per symbol)
 
    htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
 
    htim1.Init.RepetitionCounter = 0;
 
    HAL_TIM_Base_Init(&htim1);
 
 
    HAL_TIM_Base_Start_IT(&htim1);
 
/*
 
    sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
 
    sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
 
    HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig);
 
 
    sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
 
    sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
 
    sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
 
    sBreakDeadTimeConfig.DeadTime = 0;
 
    sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
 
    sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
 
    sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
 
    HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig);
 
 
    sConfigOC.OCMode = TIM_OCMODE_TIMING;
 
    sConfigOC.Pulse = 0;
 
    sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
 
    sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
 
    sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
 
    sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
 
    sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
 
    HAL_TIM_OC_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1);
 
*/
 
 
 
    HAL_NVIC_SetPriority(TIM1_BRK_UP_TRG_COM_IRQn, 0, 0);
 
    HAL_NVIC_EnableIRQ(TIM1_BRK_UP_TRG_COM_IRQn);
 
 
    HAL_Delay(100);
 
 
 
 
 
 
 
//    MX_USART1_UART_Init();
 
 
    jtencode_init();
 
    //gps_init();
 
    si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);
 
    si5351_set_correction(0);
 
    //si5351_set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
 
    //si5351_set_ms_source(SI5351_CLK0, SI5351_PLLA);
 
    si5351_set_freq(WSPR_DEFAULT_FREQ * 100, 0, SI5351_CLK0);
 
    si5351_drive_strength(SI5351_CLK0, SI5351_DRIVE_2MA); // Set for max power if desired (8ma max)
 
    si5351_output_enable(SI5351_CLK0, 1);
 
    //si5351_pll_reset(SI5351_PLLA);
 
 
    //wspr_encode(call, loc, dbm, tx_buffer);
 
 
    encode_wspr();
 
 
    HAL_Delay(1000);
 
 
    uint32_t led_timer = HAL_GetTick();
 
    uint32_t last_gps  = HAL_GetTick();
 
    uint32_t last_wspr  = HAL_GetTick();
 
    uint32_t last_wspr  = 0xfffff; // start immediately. 
 
 
    while (1)
 
    {
 
        if(HAL_GetTick() - last_wspr > 6000)
 
        if(HAL_GetTick() - last_wspr > 120000)
 
        {
 
            encode_wspr();
 
            last_wspr = HAL_GetTick();
 
        }
 
        
 
        if(HAL_GetTick() - led_timer > 100)
 
        {
 
            HAL_GPIO_TogglePin(LED_BLUE);
 
            led_timer = HAL_GetTick();
 
        }
 
        if(HAL_GetTick() - last_gps > 100)
 
        {
 
//            gps_process();
 
            last_gps = HAL_GetTick();
 
        }
 
    }
 
}
 
 
 
// Initialize system clocks
 
void sysclk_init(void)
 
{
 
    RCC_OscInitTypeDef RCC_OscInitStruct;
 
    RCC_ClkInitTypeDef RCC_ClkInitStruct;
 
    RCC_PeriphCLKInitTypeDef PeriphClkInit;
 
 
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSI14;
 
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
 
    RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;
 
    RCC_OscInitStruct.HSICalibrationValue = 16;
 
    RCC_OscInitStruct.HSI14CalibrationValue = 16;
 
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
 
    HAL_RCC_OscConfig(&RCC_OscInitStruct);
 
 
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
 
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
 
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
 
    HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
 
 
    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_I2C1;
 
    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
 
    PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK;
 
    HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
 
 
    HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
 
 
    HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
 
 
    __SYSCFG_CLK_ENABLE();
 
    // SysTick_IRQn interrupt configuration 
 
    HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
 
}
 
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