FeatherHAB/wsprhab Changeset - 30ab6b66325f

Changeset - 30ab6b66325f

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Ethan Zonca - 7 years ago 2019-09-01 19:12:19
ez@ethanzonca.com

Add pilot tone and some power-saving stuff that really doesn't help at all

12 files changed with 168 insertions and 117 deletions:

.cproject

.settings/language.settings.xml

Makefile

inc/config.h

inc/wspr.h

lib/si5351/si5351.h

src/adc.c

src/gpio.c

src/main.c

src/rtc.c

src/system.c

src/wspr.c

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.cproject

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 			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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 			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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 			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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 		<scannerConfigBuildInfo instanceId="ilg.gnuarmeclipse.managedbuild.cross.toolchain.base.1766192373;ilg.gnuarmeclipse.managedbuild.cross.toolchain.base.1766192373.916722003;ilg.gnuarmeclipse.managedbuild.cross.tool.cpp.compiler.31521072;ilg.gnuarmeclipse.managedbuild.cross.tool.cpp.compiler.input.538112757">
 			<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
 		</scannerConfigBuildInfo>
 	</storageModule>
 	<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
 	<storageModule moduleId="refreshScope"/>
 	<storageModule moduleId="org.eclipse.cdt.make.core.buildtargets"/>
 </cproject>

.settings/language.settings.xml

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Show inline comments

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project>
 	<configuration id="ilg.gnuarmeclipse.managedbuild.cross.toolchain.base.1766192373" name="Default">
 		<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider copy-of="extension" id="org.eclipse.cdt.managedbuilder.core.GCCBuildCommandParser"/>
-			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1836845659980131172" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1122202595071" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT GCC Built-in Compiler Settings Cross ARM" parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
 		</extension>
 	</configuration>
 </project>

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  adc.c gpio.c i2c.c interrupts.c uart.c  gps.c system_stm32f0xx.c system.c wspr.c rtc.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
 USER_CFLAGS += -flto
+#USER_CFLAGS += -flto
 # USER_LDFLAGS:  user LD flags
 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)

inc/config.h

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Show inline comments

 #ifndef CONFIG_H
 #define CONFIG_H
 // --------------------------------------------------------------------------
 // Transmitter config
 // --------------------------------------------------------------------------
+//#define LED_DISABLE
 // --------------------------------------------------------------------------
 // ADC config (adc.c)
 // --------------------------------------------------------------------------
-// Temperature sensor offset (die temperature from ambient, esimate, in Celcius)
+// Temperature sensor offset (die temperature from ambient, estimate, in Celcius)
 #define ADC_TEMPERATURE_OFFSET -10
 // --------------------------------------------------------------------------
 // AX.25 config (ax25.c)
 // --------------------------------------------------------------------------
 // TX delay in milliseconds
 #define TX_DELAY      500
 // Maximum packet delay
 #define MAX_PACKET_LEN 512  // bytes
 // --------------------------------------------------------------------------
 // APRS config (aprs.c)
 // --------------------------------------------------------------------------
 // Set your callsign and SSID here. Common values for the SSID are
 // (from http://zlhams.wikidot.com/aprs-ssidguide):
 //
 // - Balloons:  11
 // - Cars:       9
 // - Home:       0
 // - IGate:      5
 #define S_CALLSIGN      "KD8TDF"
 #define S_CALLSIGN_ID   11
 // Destination callsign: APRS (with SSID=0) is usually okay.
 #define D_CALLSIGN      "APRS"
 #define D_CALLSIGN_ID   0
 // Digipeating paths:
 // (read more about digipeating paths here: http://wa8lmf.net/DigiPaths/ )
 // The recommended digi path for a balloon is WIDE2-1 or pathless. The default
 // is pathless. Uncomment the following two lines for WIDE2-1 path:
 #define DIGI_PATH1      "WIDE2"
 #define DIGI_PATH1_TTL  1
 // Transmit the APRS sentence every X milliseconds
 #define APRS_TRANSMIT_PERIOD 60123
 // --------------------------------------------------------------------------
 // GPS config (gps.c)
 // --------------------------------------------------------------------------

inc/wspr.h

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 #ifndef _WSPR_H
 #define _WSPR_H
 // Prototypes
 void wspr_init(void);
 void wspr_sleep(void);
 void wspr_wakeup(void);
 void wspr_transmit(uint8_t* grid_locator, uint8_t send_alternate);
+void wspr_pilot_tone(void);
 #endif

lib/si5351/si5351.h

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 /*
  * si5351.h - Si5351 library for Arduino
+ *
  * Copyright (C) 2015 Jason Milldrum <milldrum@gmail.com>
  *                    Dana H. Myers <k6jq@comcast.net>
+ *
  * Many defines derived from clk-si5351.h in the Linux kernel.
  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
  * Rabeeh Khoury <rabeeh@solid-run.com>
+ *
  * do_div() macro derived from /include/asm-generic/div64.h in
  * the Linux kernel.
  * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
+ *
  * This program 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 General Public License for more details.
+ *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #ifndef SI5351_H_
 #define SI5351_H_
 #include <stdint.h>
 #include "stm32f0xx_hal.h"
 /* Define definitions */
 #define SI5351_BUS_BASE_ADDR				((0x60 & 0x7f) << 1)
-#define SI5351_XTAL_FREQ					25000000
+#define SI5351_XTAL_FREQ					26000000
 #define SI5351_PLL_FIXED					90000000000ULL
 #define SI5351_FREQ_MULT					100ULL
 #define SI5351_DEFAULT_CLK					1000000000ULL
 #define SI5351_PLL_VCO_MIN					600000000
 #define SI5351_PLL_VCO_MAX					900000000
 #define SI5351_MULTISYNTH_MIN_FREQ		  	1000000
 #define SI5351_MULTISYNTH_DIVBY4_FREQ	 	150000000
 #define SI5351_MULTISYNTH_MAX_FREQ		  	160000000
 #define SI5351_MULTISYNTH_SHARE_MAX			112500000
 #define SI5351_MULTISYNTH67_MAX_FREQ	  	SI5351_MULTISYNTH_DIVBY4_FREQ
 #define SI5351_CLKOUT_MIN_FREQ			    	8000
 #define SI5351_CLKOUT_MAX_FREQ			    	SI5351_MULTISYNTH_MAX_FREQ
 #define SI5351_CLKOUT67_MAX_FREQ		    	SI5351_MULTISYNTH67_MAX_FREQ
 #define SI5351_PLL_A_MIN			        		15
 #define SI5351_PLL_A_MAX				        	90
 #define SI5351_PLL_B_MAX				        	(SI5351_PLL_C_MAX-1)
 #define SI5351_PLL_C_MAX				        	1048575
 #define SI5351_MULTISYNTH_A_MIN			   	6
 #define SI5351_MULTISYNTH_A_MAX		   		1800
 #define SI5351_MULTISYNTH67_A_MAX	   		254
 #define SI5351_MULTISYNTH_B_MAX			   	(SI5351_MULTISYNTH_C_MAX-1)
 #define SI5351_MULTISYNTH_C_MAX			   	1048575
 #define SI5351_MULTISYNTH_P1_MAX		    	((1<<18)-1)
 #define SI5351_MULTISYNTH_P2_MAX		    	((1<<20)-1)
 #define SI5351_MULTISYNTH_P3_MAX		    	((1<<20)-1)
 #define SI5351_DEVICE_STATUS			      	0
 #define SI5351_INTERRUPT_STATUS		   		1
 #define SI5351_INTERRUPT_MASK		     		2
 #define SI5351_STATUS_SYS_INIT		    		(1<<7)
 #define SI5351_STATUS_LOL_B			       	(1<<6)
 #define SI5351_STATUS_LOL_A			       	(1<<5)
 #define SI5351_STATUS_LOS				       	(1<<4)
 #define SI5351_OUTPUT_ENABLE_CTRL		   	3
 #define SI5351_OEB_PIN_ENABLE_CTRL		  	9
 #define SI5351_PLL_INPUT_SOURCE		   		15
 #define SI5351_CLKIN_DIV_MASK			     	(3<<6)
 #define SI5351_CLKIN_DIV_1				      	(0<<6)
 #define SI5351_CLKIN_DIV_2			      		(1<<6)
 #define SI5351_CLKIN_DIV_4			      		(2<<6)
 #define SI5351_CLKIN_DIV_8				      	(3<<6)
 #define SI5351_PLLB_SOURCE			      		(1<<3)
 #define SI5351_PLLA_SOURCE			      		(1<<2)
 #define SI5351_CLK0_CTRL			        		16
 #define SI5351_CLK1_CTRL			        		17

src/adc.c

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@@ @@ -27,92 +27,98 @@ void adc_init(void) @@
     hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD;
     hadc.Init.EOCSelection = EOC_SINGLE_CONV;
     hadc.Init.LowPowerAutoWait = DISABLE;
     hadc.Init.LowPowerAutoPowerOff = DISABLE;
     hadc.Init.ContinuousConvMode = DISABLE;
     hadc.Init.DiscontinuousConvMode = DISABLE;
     hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
     hadc.Init.DMAContinuousRequests = DISABLE;
     hadc.Init.Overrun = OVR_DATA_PRESERVED;
     HAL_ADC_Init(&hadc);
     sConfig.Channel = ADC_CHANNEL_6;
     sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
     sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
     HAL_ADC_ConfigChannel(&hadc, &sConfig);
     sConfig.Channel = ADC_CHANNEL_TEMPSENSOR;
     sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
     sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
     HAL_ADC_ConfigChannel(&hadc, &sConfig);
     // TODO: AAH might not want to be running this DMA all the time! Meh.
     __DMA1_CLK_ENABLE();
     HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);
     HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
     hdma_adc.Instance = DMA1_Channel1;
     hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY;
     hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE;
     hdma_adc.Init.MemInc = DMA_MINC_ENABLE;
     hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
     hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
     hdma_adc.Init.Mode = DMA_CIRCULAR;
     hdma_adc.Init.Priority = DMA_PRIORITY_LOW;
     HAL_DMA_Init(&hdma_adc);
     __HAL_LINKDMA(&hadc,DMA_Handle,hdma_adc);
     HAL_ADC_Start_DMA(&hadc, adc_buffer, ADC_BUF_LEN);
+}
 void adc_start(void)
+{
 	// TODO: Is stopping the clocks enough? Might need to disable periph?
     __ADC1_CLK_ENABLE();
 	__DMA1_CLK_ENABLE();
     HAL_ADC_Start_DMA(&hadc, adc_buffer, ADC_BUF_LEN);
+}
 void adc_stop(void)
+{
     HAL_ADC_Stop_DMA(&hadc);
     __DMA1_CLK_DISABLE();
     __ADC1_CLK_DISABLE();
+}
 uint8_t adc_get_vbatt(void)
+{
     return 33; //adc_buffer[0] / 62.5; // tenths of volts ish
+}
 //See RM0091 section 13.9 and appendix A.7.16
 //Temperature sensor raw value at 30 degrees C, VDDA=3.3V
 #define TEMP30_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7B8))
 //Temperature sensor raw value at 110 degrees C, VDDA=3.3V
 #define TEMP110_CAL_ADDR ((uint16_t*) ((uint32_t) 0x1FFFF7C2))
 #define ADC_TEMPERATURE_OFFSET 0
 int16_t adc_get_dietemp(void)
+{
     int32_t tempraw = adc_buffer[1];
     int32_t temperature;
     temperature = tempraw - ((int32_t)*TEMP30_CAL_ADDR);
     temperature = temperature * (110L - 30L);
     temperature = temperature / (*TEMP110_CAL_ADDR - *TEMP30_CAL_ADDR);
     temperature = temperature + 30L;
     temperature = temperature + ADC_TEMPERATURE_OFFSET;
     return 14; //temperature;
     // TODO: Verify
+}
 ADC_HandleTypeDef* adc_gethandle(void)
+{
     return &hadc;
+}

src/gpio.c

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 #include "gpio.h"
 #include "config.h"
 // Initialize GPIOs
 void gpio_init(void)
+{
   GPIO_InitTypeDef GPIO_InitStruct;
   /* GPIO Ports Clock Enable */
   __GPIOF_CLK_ENABLE();
   __GPIOA_CLK_ENABLE();
   __GPIOB_CLK_ENABLE();
   // Oscillator enable pin
   GPIO_InitStruct.Pin = OSC_EN_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
   HAL_GPIO_WritePin(GPIOF, OSC_EN_Pin, 0); // disable
   // GPS enable pin
   GPIO_InitStruct.Pin = GPS_NEN_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(GPS_NEN_GPIO_Port, &GPIO_InitStruct);
   HAL_GPIO_WritePin(GPS_NEN_GPIO_Port, GPS_NEN_Pin, 1); // disable
   /*Configure GPIO pins : PA0 PA2 PA3 PA4
                            PA5 PA7 PA15 */
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4
                           |GPIO_PIN_5|GPIO_PIN_7|GPIO_PIN_15;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 //  /*Configure GPIO pin : PA1 */
 //  GPIO_InitStruct.Pin = GPIO_PIN_1;
 //  GPIO_InitStruct.Mode = GPIO_MODE_EVT_RISING;
 //  GPIO_InitStruct.Pull = GPIO_NOPULL;
 //  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   /*Configure GPIO pin : PtPin */
   GPIO_InitStruct.Pin = LED_BLUE_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(LED_BLUE_GPIO_Port, &GPIO_InitStruct);
   /*Configure GPIO pins : PB1 PB3 PB4 PB5 */
   GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
   /*Configure GPIO pin : PtPin */
   GPIO_InitStruct.Pin = TCXO_EN_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(TCXO_EN_GPIO_Port, &GPIO_InitStruct);
   HAL_GPIO_WritePin(TCXO_EN_GPIO_Port, TCXO_EN_Pin, 0); // disable
+}
 void led_blink(uint8_t n)
+{
     for(int i = 0; i < n; i++)
+    {
         HAL_GPIO_WritePin(LED_BLUE, 1);
         HAL_Delay(100);
         HAL_GPIO_WritePin(LED_BLUE, 0);
         HAL_Delay(100);
+    }
 	#ifndef LED_DISABLE
 		for(int i = 0; i < n; i++)
+		{
 			HAL_GPIO_WritePin(LED_BLUE, 1);
 			HAL_Delay(100);
 			HAL_GPIO_WritePin(LED_BLUE, 0);
 			HAL_Delay(100);
+		}
 	#endif
+}

src/main.c

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Show inline comments

 //
 // WSPRHAB: Minimal high-altitude balloon tracker with WSPR telemetry
 //
 #include "stm32f0xx_hal.h"
 #include "adc.h"
 #include "system.h"
 #include "i2c.h"
 #include "uart.h"
 #include "gpio.h"
 #include "wspr.h"
 #include "rtc.h"
 #include "gps.h"
 #include "config.h"
 // We have access to the 1PPS pin of the gps... could have trim routine for internal oscillator based on this when we have a fix
 // Probable wake up 1 minute early -- 0.45min possible +/- on wakeup time with 15min sync intervals
 // TODO: Add JT9 message with more grid locator digits + altitude + vbatt + temp
 // MSG13charmax:
 // 	X: gridloc
 //  Y: altitude
 //  Z: temperature
 //  KD8TDF XXYYZZ // could use alt callsign thing
 enum _state
+{
     SYSTEM_IDLE = 0, // awaiting RTC interrupt for wakeup TODO wake up before scheduled time to get fix?
     SYSTEM_GPSACQ, // RTC interrupted
     SYSTEM_WSPRTX, // Wait for timeslot and actually transmit the message
 };
 static void __calc_gridloc(char *dst, double lat, double lon);
 static void ledpulse(void);
 uint32_t statled_ontime = 0;
 int main(void)
+{
     HAL_Init();
     HAL_Delay(1000); // startup delay before infinisleep
     sysclk_init();
     rtc_init();
     gpio_init();
     adc_init();
     wspr_init();
     uint32_t led_timer = HAL_GetTick();
     led_blink(4);
     uint16_t blink_rate = BLINK_FAST;
     uint8_t state = SYSTEM_GPSACQ;
     uint32_t gps_polltimer = 0;
     uint32_t fix_acq_starttime = 0;
     uint32_t nextwspr_time = 0;
     uint8_t nextwspr_time_valid = 0;
     uint32_t last_wspr_tx_time = 0;
     uint8_t packet_type = 0;
     // Transmit pilot tone to test TX on bootup
     HAL_Delay(1000);
     wspr_pilot_tone();
     adc_stop();
     HAL_Delay(1000);
     while (1)
+    {
     	// TODO: Disable GPIO port clocking when not needed!
     	// Every 10 minutes, wake up and try to wspr
     	if(state == SYSTEM_IDLE && (HAL_GetTick() - last_wspr_tx_time > 60000 * 10))
+    	{
     		state = SYSTEM_GPSACQ;
+    	}
 //    	if(state == SYSTEM_IDLE && (HAL_GetTick() - last_wspr_tx_time > 60000 * 10))
 //    	{
 //    		state = SYSTEM_GPSACQ;
 //    	}
         // Update fix status every 2 seconds
+        // Update fix status every 2 seconds, only if the GPS is powered on
         if(HAL_GetTick() - gps_polltimer > 2000)
+        {
             if(gps_ison())
+            {
             	gps_update_data();
             	// If odd minute
             	if(gps_getdata()->minute % 2)
+            	{
             		// Wait until even minute plus one second, coming soon
             		nextwspr_time = HAL_GetTick() + (60000 - (gps_getdata()->second * 1000));
                     nextwspr_time_valid = 1;
+            	}
             	// If even minute
             	else
+            	{
             		// Wait until odd minute, one minute and some change away
             		nextwspr_time = HAL_GetTick() + 60000 + (60000 - (gps_getdata()->second * 1000));
                     nextwspr_time_valid = 1;
+            	}
+            }
             gps_polltimer = HAL_GetTick();
+        }
         switch(state)
+        {
             // Idling: sleep and wait for RTC timeslot trigger
             case SYSTEM_IDLE:
+            {
                 blink_rate = BLINK_SLOW;
                 // Actually sleep for real: disable systick and sleep until RTC interrupt
 //                HAL_SuspendTick();
                 // Enter sleep mode: wait for interrupt
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 // We have woken up!
                 // This is hopefully the only timer that needs to stay alive in idle mode
  //               last_wspr_tx_time += 0; // move this timer forward based on sleep length
  //               HAL_ResumeTick();
                 // TODO: Eventually use GPS time to calibrate the RTC maybe
             } break;
             // Attempt to acquire GPS fix
             case SYSTEM_GPSACQ:
+            {
                 blink_rate = BLINK_FAST;
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 if(!gps_ison())
+                {
                 	fix_acq_starttime = HAL_GetTick();
                     gps_poweron(); // power on and initialize GPS module
+                }
                 // TODO: Move GPS processing into here from above!
                 // If 3d fix with a decent enough precision
                 if( ((gps_getdata()->fixtype == 2) || (gps_getdata()->fixtype == 3)) && gps_getdata()->pdop < 10 && nextwspr_time_valid == 1)
+                {
                     // Disable GPS module
                     gps_poweroff();
                     // TODO: Set RTC from GPS time
                     // TODO: Set RTC for countdown to next transmission timeslot!
                     // TODO: Set wspr countdown timer for this transmission!
                     fix_acq_starttime = 0;
                     state = SYSTEM_WSPRTX;
                     adc_start();
+                }
                 // If no decent fix in 3 minutes
                 else if(HAL_GetTick() - fix_acq_starttime > 60000 * 3)
+                {
                 	// Flash error code and go to idle, try again next time
                 	led_blink(4);
                     gps_poweroff();
                     fix_acq_starttime = 0;
                     last_wspr_tx_time = HAL_GetTick(); // repeat acq/tx cycle after big time delay
                 	state = SYSTEM_IDLE;
+                }
             } break;
             // Wait for wspr timeslot and start transmitting
             case SYSTEM_WSPRTX:
+            {
             	blink_rate = BLINK_MED;
                 // Wait for wspr countdown timer to expire and go to tx
 //                if(timeout_expired)
 //                {
             	// If we're after the minute but not more than 2s after the minute, start tx
             	if(HAL_GetTick() >= nextwspr_time)
+            	{
             		if(HAL_GetTick() < nextwspr_time + 2000)
+            		{
             			volatile double latitude_flt = (double)gps_getdata()->latitude / 10000000.0;
             			volatile double longitude_flt = (double)gps_getdata()->longitude / 10000000.0;
             			volatile uint8_t grid_locator[7];
             			__calc_gridloc(grid_locator, latitude_flt, longitude_flt);
                         // TODO: Switch between alternate and standard packet
 						wspr_transmit(grid_locator, packet_type);
                         packet_type = !packet_type; // alternate packet type
 						last_wspr_tx_time = HAL_GetTick();
 						state = SYSTEM_IDLE;
                         adc_stop();
+            		}
             		else
+            		{
             			// Window was missed, go back to idle, and try again after time delay
 						last_wspr_tx_time = HAL_GetTick();
             			state = SYSTEM_IDLE;
                         adc_stop();
+            		}
                     nextwspr_time_valid = 0; // invalidate wspr time
+                }
             	else
+            	{
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                     HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
+            	}
-                // Schedule next wakeup (maybe 2mins prior ot timeslot if no osc trim)
+                // Schedule next wakeup (maybe 2mins prior to timeslot if no osc trim)
                 // Next wakeup should enter SYSTEM_GPSACQ state...
             } break;
+        }
 		#ifndef LED_DISABLE
 			if(HAL_GetTick() - led_timer > blink_rate)
+			{
 				ledpulse();
 				led_timer = HAL_GetTick();
+			}
         if(HAL_GetTick() - led_timer > blink_rate)
+        {
             ledpulse();
             led_timer = HAL_GetTick();
+        }
         if(statled_ontime && HAL_GetTick() - statled_ontime > 10)
+        {
             HAL_GPIO_WritePin(LED_BLUE, 0);
             statled_ontime = 0;
+        }
 			if(statled_ontime && HAL_GetTick() - statled_ontime > 10)
+			{
 				HAL_GPIO_WritePin(LED_BLUE, 0);
 				statled_ontime = 0;
+			}
 		#endif
+    }
+}
 static void ledpulse(void)
+{
     HAL_GPIO_WritePin(LED_BLUE, 1);
 	statled_ontime = HAL_GetTick();
+}
 static void __calc_gridloc(char *dst, double lat, double lon)
+{
 	int o1, o2, o3;
 	int a1, a2, a3;
 	double remainder;
 	// longitude
 	remainder = lon + 180.0;
 	o1 = (int)(remainder / 20.0);
 	remainder = remainder - (double)o1 * 20.0;
 	o2 = (int)(remainder / 2.0);
 	remainder = remainder - 2.0 * (double)o2;
 	o3 = (int)(12.0 * remainder);
 	// latitude
 	remainder = lat + 90.0;
 	a1 = (int)(remainder / 10.0);
 	remainder = remainder - (double)a1 * 10.0;
 	a2 = (int)(remainder);
 	remainder = remainder - (double)a2;
 	a3 = (int)(24.0 * remainder);
 	dst[0] = (char)o1 + 'A';
 	dst[1] = (char)a1 + 'A';
 	dst[2] = (char)o2 + '0';
 	dst[3] = (char)a2 + '0';
 	dst[4] = (char)o3 + 'A';
 	dst[5] = (char)a3 + 'A';
 	dst[6] = (char)0;
+}

src/rtc.c

➞

Show inline comments

 //
 // RTC: configure real-time clock
 //
 #include "stm32f0xx_hal.h"
 #include "rtc.h"
 RTC_HandleTypeDef hrtc;
 static void Error_Handler(void)
+{
 	volatile uint8_t crap = 1;
+}
 // Initialize RTC
 void rtc_init(void)
+{
 	__HAL_RCC_RTC_ENABLE();
   RTC_TimeTypeDef sTime;
   RTC_DateTypeDef sDate;
   RTC_AlarmTypeDef sAlarm;
 	RTC_TimeTypeDef sTime;
 	RTC_DateTypeDef sDate;
 	RTC_AlarmTypeDef sAlarm;
   hrtc.Instance = RTC;
   hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
   hrtc.Init.AsynchPrediv = 124;
   hrtc.Init.SynchPrediv = 322; // if this has enough bits should be 1.0018Hz based on 40kHz LSI
   hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
   hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
   hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
 	hrtc.Instance = RTC;
 	hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
 	hrtc.Init.AsynchPrediv = 124;
 	hrtc.Init.SynchPrediv = 322; // if this has enough bits should be 1.0018Hz based on 40kHz LSI
 	hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
 	hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
 	hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
   if (HAL_RTC_Init(&hrtc) != HAL_OK)
+  {
     Error_Handler();
+  }
 	if (HAL_RTC_Init(&hrtc) != HAL_OK)
+	{
 		Error_Handler();
+	}
   sTime.Hours = 0x0;
   sTime.Minutes = 0x0;
   sTime.Seconds = 0x0;
   sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
   sTime.StoreOperation = RTC_STOREOPERATION_RESET;
   if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
+  {
     Error_Handler();
+  }
 	sTime.Hours = 0x0;
 	sTime.Minutes = 0x0;
 	sTime.Seconds = 0x0;
 	sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
 	sTime.StoreOperation = RTC_STOREOPERATION_RESET;
 	if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
+	{
 		Error_Handler();
+	}
   sDate.WeekDay = RTC_WEEKDAY_MONDAY;
   sDate.Month = RTC_MONTH_JANUARY;
   sDate.Date = 0x1;
   sDate.Year = 0x0;
 	sDate.WeekDay = RTC_WEEKDAY_MONDAY;
 	sDate.Month = RTC_MONTH_JANUARY;
 	sDate.Date = 0x1;
 	sDate.Year = 0x0;
   if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
+  {
     Error_Handler();
+  }
 	if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
+	{
 		Error_Handler();
+	}
     /**Enable the Alarm A
     */
   sAlarm.AlarmTime.Hours = 0x0;
   sAlarm.AlarmTime.Minutes = 0x0;
   sAlarm.AlarmTime.Seconds = 0x0;
   sAlarm.AlarmTime.SubSeconds = 0x0;
   sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
   sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
 	/**Enable the Alarm A
 	*/
 	sAlarm.AlarmTime.Hours = 0x0;
 	sAlarm.AlarmTime.Minutes = 0x0;
 	sAlarm.AlarmTime.Seconds = 0x0;
 	sAlarm.AlarmTime.SubSeconds = 0x0;
 	sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
 	sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
   // Alarm will trigger on the Xth second of every minute
   sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY | RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES;
   sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;
   sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
   sAlarm.AlarmDateWeekDay = 0x1;
   sAlarm.Alarm = RTC_ALARM_A;
   if (HAL_RTC_SetAlarm(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
+  {
     Error_Handler();
+  }
 	// Alarm will trigger on the Xth second of every minute
 	sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY | RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES;
 	sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;
 	sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
 	sAlarm.AlarmDateWeekDay = 0x1;
 	sAlarm.Alarm = RTC_ALARM_A;
 	if (HAL_RTC_SetAlarm(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
+	{
 		Error_Handler();
+	}
   HAL_NVIC_SetPriority(RTC_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(RTC_IRQn);
 	HAL_NVIC_SetPriority(RTC_IRQn, 0, 0);
 	HAL_NVIC_EnableIRQ(RTC_IRQn);
+}
 void rtc_cal(void)
+{
 	// Do something with hrtc.Instance->CALR; // this has a plus and minus component, see refman
+}
 RTC_HandleTypeDef* rtc_gethandle(void)
+{
 	return &hrtc;
+}

src/system.c

➞

Show inline comments

 //
 // System: basic low-level system configuration
 //
 #include "stm32f0xx_hal.h"
 #include "system.h"
 #include "wspr.h"
 void enter_sleep(void)
+{
     //HAL_SuspendTick();
     wspr_sleep();
     HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
     wspr_wakeup();
     //HAL_ResumeTick();
+}
 void enter_deepsleep(void)
+{
     // Request to enter STOP mode with regulator in low power mode
     HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
     // After wake-up from STOP reconfigure the PLL
     sysclk_init();
+}
 // Initialize system clocks
 void sysclk_init(void)
+{
     RCC_OscInitTypeDef RCC_OscInitStruct;
     RCC_ClkInitTypeDef RCC_ClkInitStruct;
     RCC_PeriphCLKInitTypeDef PeriphClkInit;
     // TODO: Probably disable HSI14? This only drives the ADC
     RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_HSI14|RCC_OSCILLATORTYPE_LSI;
     RCC_OscInitStruct.HSIState = RCC_HSI_ON;
     RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;
     RCC_OscInitStruct.HSICalibrationValue = 16;
     RCC_OscInitStruct.HSI14CalibrationValue = 16;
     RCC_OscInitStruct.LSIState = RCC_LSI_ON;
     RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
     HAL_RCC_OscConfig(&RCC_OscInitStruct);
     RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                                 |RCC_CLOCKTYPE_PCLK1;
     RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
     RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV4;
     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_SYSCLK; //RCC_USART1CLKSOURCE_PCLK1;
     PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK;
     PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
     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);
+}

src/wspr.c

➞

Show inline comments

 #include "stm32f0xx_hal.h"
 #include "si5351.h"
 #include "jtencode.h"
 #include "gpio.h"
 #include "wspr.h"
 #include "i2c.h"
 #include "gps.h"
 #include "adc.h"
 #include "config.h"
 #define WSPR_DEFAULT_FREQ 10140100UL
 #define WSPR_TONE_SPACING 146 // ~1.46 Hz
 #define WSPR_CTC 10672 // CTC value for WSPR
 char call_orig[7] = "KD8TDF";
 #define DBM_ORIG 10
 // Test stuff
 char call[7] = "KD8TDF";
 char loc[7] = "EN82";
 uint8_t dbm = 10;
 uint8_t tx_buffer[255];
 // Frequencies and channel info
 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;
 TIM_HandleTypeDef htim1;
 void wspr_init(void)
+{
     // Turn off ICs
     HAL_GPIO_WritePin(OSC_NOTEN, 1);
     HAL_GPIO_WritePin(TCXO_EN, 0);
+}
 // Do anything needed to prepare for sleep
 void wspr_sleep(void)
+{
     HAL_TIM_Base_Stop_IT(&htim1);
+}
 void wspr_wakeup(void)
+{
     HAL_TIM_Base_Start_IT(&htim1);
+}
 // Bring up TCXO and oscillator IC
@@ @@ -259,48 +260,103 @@ void wspr_transmit(uint8_t* grid_locator @@
     si5351_output_enable(SI5351_CLK0, 1);
     //si5351_pll_reset(SI5351_PLLA);
     // Make sure the other outputs of the SI5351 are disabled
     si5351_output_enable(SI5351_CLK1, 0); // Disable the clock initially
     si5351_output_enable(SI5351_CLK2, 0); // Disable the clock initially
     // disable clock powers
     si5351_set_clock_pwr(SI5351_CLK1, 0);
     si5351_set_clock_pwr(SI5351_CLK2, 0);
     // Encode message to transmit
     wspr_encode(call, loc, dbm, tx_buffer);
     // Key transmitter
     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);
         proceed = 0;
         while(!proceed);
+    }
     // Disable transmitter
     si5351_output_enable(SI5351_CLK0, 0);
     HAL_GPIO_WritePin(OSC_NOTEN, 1);
     HAL_GPIO_WritePin(TCXO_EN, 0);
     i2c_deinit();
     // Disable timer
     HAL_NVIC_DisableIRQ(TIM1_BRK_UP_TRG_COM_IRQn);
     HAL_TIM_Base_Stop_IT(&htim1);
     HAL_TIM_Base_DeInit(&htim1);
     __TIM1_CLK_DISABLE();
+}
 // Transmit boot-up test tones to check tx
 void wspr_pilot_tone(void)
+{
 	// Bring up TCXO
     HAL_GPIO_WritePin(OSC_NOTEN, 0);
     HAL_GPIO_WritePin(TCXO_EN, 1);
     HAL_Delay(100);
     // Bring up the chip
     i2c_init();
     si5351_init(i2c_get(), SI5351_CRYSTAL_LOAD_8PF, 0);
     si5351_set_correction(0);
     si5351_set_freq(WSPR_DEFAULT_FREQ * 100, 0, SI5351_CLK0);
     si5351_drive_strength(SI5351_CLK0, SI5351_DRIVE_6MA); // Set for max power if desired (8ma max)
     si5351_output_enable(SI5351_CLK0, 1);
     // Make sure the other outputs of the SI5351 are disabled
     si5351_output_enable(SI5351_CLK1, 0); // Disable the clock initially
     si5351_output_enable(SI5351_CLK2, 0); // Disable the clock initially
     // disable clock powers
     si5351_set_clock_pwr(SI5351_CLK1, 0);
     si5351_set_clock_pwr(SI5351_CLK2, 0);
     // Key transmitter
     si5351_output_enable(SI5351_CLK0, 1);
     uint8_t tone_table[7] = {50, 100, 70, 50, 0, 10, 0};
     // Boot-up pilot tones
     for(uint8_t i=0; i<7; i++)
+    {
         uint32_t freq2 = (WSPR_DEFAULT_FREQ + 10*tone_table[i]) * 100;
         si5351_set_freq(freq2, 0, SI5351_CLK0);
 		#ifndef LED_DISABLE
         	HAL_GPIO_TogglePin(LED_BLUE);
 		#endif
         HAL_Delay(500);
+    }
     // Disable transmitter
     si5351_output_enable(SI5351_CLK0, 0);
     HAL_GPIO_WritePin(OSC_NOTEN, 1);
     HAL_GPIO_WritePin(TCXO_EN, 0);
     i2c_deinit();
     // Make sure LED is off if we had an odd number of toggles above
 	HAL_GPIO_WritePin(LED_BLUE, 0);
+}

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