therm Changeset - da7e7cc3bb06 · protofusion repositories

Changeset - da7e7cc3bb06

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cortex-f0

0 13 0

Ethan Zonca - 9 years ago 2015-11-28 13:18:08
ez@ethanzonca.com

Refactor and cleanup

13 files changed with 31 insertions and 140 deletions:

Makefile

display.c

gpio.c

gpio.h

main.c

spi.c

spi.h

ssd1306.c

system/interrupts.c

system/interrupts.h

system/syslib.c

system/syslib.h

system/usbd_conf.c

0 comments (0 inline, 0 general)

Makefile

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@@ @@ -49,134 +49,134 @@ TARGET_DEVICE = STM32F042x6 @@
 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 += -I$(CURDIR)
 INCLUDES += -I$(CURDIR)/usb
 INCLUDES += $(USB_INCLUDES)
 INCLUDES += $(USER_INCLUDES)
 # macros for gcc
 DEFS = -D$(CORE) $(USER_DEFS) -D$(TARGET_DEVICE)
 # compile gcc flags
 CFLAGS = $(DEFS) $(INCLUDES)
 CFLAGS += -mcpu=$(CPU) -mthumb
 CFLAGS += $(USER_CFLAGS)
 # default action: build the user application
 all: $(BUILD_DIR)/$(TARGET).hex
 #######################################
 # 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 application
 #######################################
 SYSTEM_BUILD_DIR = $(BUILD_DIR)/system
 # list of user program objects
 #OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(SOURCES:.c=.o)))
 OBJECTS = $(addprefix $(BUILD_DIR)/,$(SOURCES:.c=.o))
 # add an object for the startup code
 OBJECTS += $(BUILD_DIR)/startup_stm32f042x6.o
+OBJECTS += $(BUILD_DIR)/system/startup_stm32f042x6.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) $(LIBS) $(USER_LDFLAGS)
 $(BUILD_DIR)/$(TARGET).hex: $(BUILD_DIR)/$(TARGET).elf | $(SYSTEM_BUILD_DIR)
 	$(OBJCOPY) -O ihex $(BUILD_DIR)/$(TARGET).elf $@
 	$(OBJCOPY) -O binary $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).bin
 $(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) $(USB_OBJECTS) $(CUBELIB) | $(SYSTEM_BUILD_DIR)
 	$(CC) -o $@ $(CFLAGS) $(USER_LDFLAGS) $(OBJECTS) $(USB_OBJECTS) \
 		-L$(CUBELIB_BUILD_DIR) -static $(LIBS) -Xlinker \
 		-Map=$(BUILD_DIR)/$(TARGET).map \
 		-T $(LD_SCRIPT)
 	$(SIZE) $@
 $(SYSTEM_BUILD_DIR):
 	@echo $(SYSTEM_BUILD_DIR)
 	$(MKDIR) $@
 $(BUILD_DIR)/%.o: %.c | $(BUILD_DIR) $(SYSTEM_BUILD_DIR)
 	$(CC) $(CFLAGS) -Os -c -o $@ $^
 $(BUILD_DIR)/%.o: %.s | $(BUILD_DIR) $(SYSTEM_BUILD_DIR)
 	$(CC) $(CFLAGS) -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)/*.bin
 		-rm $(BUILD_DIR)/*.map
 .PHONY: clean all cubelib

display.c

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 #include "stm32f0xx_hal.h"
 #include "ssd1306.h"
 #include "stringhelpers.h"
 #include "display.h"
 #include "config.h"
 #include "states.h"
 #include "syslib.h"
 #include "flash.h"
 #include "gpio.h"
 uint8_t goto_mode = 2;
+static uint8_t goto_mode = 2;
 // State machine
 uint8_t sw_btn_last = 0;
 uint8_t sw_up_last = 0;
 uint8_t sw_down_last = 0;
 uint8_t sw_left_last = 0;
 uint8_t sw_right_last = 0;
 static uint8_t sw_btn_last = 0;
 static uint8_t sw_up_last = 0;
 static uint8_t sw_down_last = 0;
 static uint8_t sw_left_last = 0;
 static uint8_t sw_right_last = 0;
 #define SW_BTN_PRESSED (sw_btn_last == 0 && sw_btn == 1) // rising edge on buttonpress
 #define SW_UP_PRESSED (sw_up_last == 0 && sw_up == 1)
 #define SW_DOWN_PRESSED (sw_down_last == 0 && sw_down == 1)
 #define SW_LEFT_PRESSED (sw_left_last == 0 && sw_left == 1)
 #define SW_RIGHT_PRESSED (sw_right_last == 0 && sw_right == 1)
 uint8_t trigger_drawsetpoint = 1;
+static uint8_t trigger_drawsetpoint = 1;
 int16_t last_temp = 21245;
+static int16_t last_temp = 21245;
 void display_process(therm_settings_t* set, therm_status_t* status)
+{
     uint8_t last_state = status->state;
     uint8_t temp_changed = status->temp != last_temp;
     last_temp = status->temp;
     uint8_t sw_btn = !HAL_GPIO_ReadPin(SW_BTN);
     uint8_t sw_up = !HAL_GPIO_ReadPin(SW_UP);
     uint8_t sw_down = !HAL_GPIO_ReadPin(SW_DOWN);
     uint8_t sw_left = !HAL_GPIO_ReadPin(SW_LEFT);
     uint8_t sw_right = !HAL_GPIO_ReadPin(SW_RIGHT);
     switch(status->state)
+    {
         // Idle state
         case STATE_IDLE:
+        {
             // Write text to OLED
             // [ therm :: idle ]
             ssd1306_DrawString("therm :: idle ", 0, 40);
             status->pid_enabled = 0;
             if(temp_changed) {
                 char tempstr[6];
                 itoa_fp(status->temp, status->temp_frac, tempstr);
                 ssd1306_DrawString("Temp: ", 3, 40);
                 ssd1306_DrawString("    ", 3, 72);
                 ssd1306_DrawString(tempstr, 3, 72);
+            }
             ssd1306_drawlogo();
             switch(goto_mode) {
                 case 3:
+                {
                     ssd1306_DrawString("-> loader   ", 1, 40);
                 } break;
                 case 2:
+                {
                     ssd1306_DrawString("-> heat     ", 1, 40);
                 } break;
                 case 1:
+                {
                     ssd1306_DrawString("-> setup    ", 1, 40);
                 } break;
                 case 0:
+                {
                     ssd1306_DrawString("-> reset    ", 1, 40);
+                }
+            }
             // Button handler
             if(SW_BTN_PRESSED) {
                 switch(goto_mode) {
                     case 3:
+                    {
                         ssd1306_clearscreen();
                         ssd1306_DrawString("Bootloader Entered", 0, 0);
                         ssd1306_DrawString("Device won't boot", 2, 0);
                         ssd1306_DrawString("until reflashed!", 3, 0);
                         bootloader_enter(); // Resets into bootloader
                         status->state = STATE_IDLE; // Just in case
                     } break;
                     case 2:
                         status->state = STATE_PREHEAT_BREW;
                         break;
                     case 1:
                         status->state = STATE_SETP;
                         break;
                     case 0:
                         status->state = STATE_IDLE;
                         //flash_erase();
                         NVIC_SystemReset();
                         break;
                     default:
                         status->state = STATE_PREHEAT_BREW;
+                }
+            }
             else if(SW_UP_PRESSED && goto_mode < 3) {
                 goto_mode++;
+            }
             else if(SW_DOWN_PRESSED && goto_mode > 0) {
                 goto_mode--;
+            }
             // Event Handler
             // N/A
         } break;
@@ @@ -412,123 +412,123 @@ void display_process(therm_settings_t* s @@
             // Event Handler
             if(status->temp >= status->setpoint) {
                 status->state = STATE_MAINTAIN_STEAM;
+            }
         } break;
         case STATE_MAINTAIN_STEAM:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             ssd1306_DrawString("Ready to Steam!", 0, 0);
             //ssd1306_drawlogo();
             draw_setpoint(status);
             status->pid_enabled = 1;
 	    status->setpoint = set->val.setpoint_steam;
             // Button handler
             if(SW_BTN_PRESSED) {
                 status->state = STATE_IDLE;
 		save_setpoints(&set); // TODO: Check for mod
+            }
             else {
                 user_input(&set->val.setpoint_steam);
+            }
             // Event Handler
             // N/A
         } break;
         case STATE_TC_ERROR:
+        {
             // Write text to OLED
             // [ therm : ready to steam ]
             // [ 30 => 120 C            ]
             ssd1306_DrawString("Error:              ", 0, 0);
             char tempstr[6];
             itoa(status->tc_errno, tempstr, 10);
             ssd1306_DrawString(tempstr, 0, 57);
             if(status->tc_errno == 1)
                 ssd1306_DrawString("    TC Open Circuit", 1, 0);
             else if(status->tc_errno == 4)
                 ssd1306_DrawString("    TC Short to GND", 1, 0);
             else if(status->tc_errno == 8)
                 ssd1306_DrawString("    TC Short to VCC", 1, 0);
             else
                 ssd1306_DrawString("#?, Unknown Error", 1, 0);
             ssd1306_DrawString("                    ", 2, 0);
             ssd1306_DrawString("-> to ignore all or", 2, 0);
             ssd1306_DrawString("press to continue", 3, 0);
             // Button handler
             if(SW_BTN_PRESSED) {
                 status->state = STATE_IDLE;
+            }
             else if(SW_RIGHT_PRESSED) {
                 set->val.ignore_tc_error = 1;
                 status->state = STATE_IDLE;
+            }
             // Event Handler
             // Maybe handle if TC is plugged in
             // N/A
         } break;
         // Something is terribly wrong
         default:
+        {
             status->state = STATE_IDLE;
             status->pid_enabled = 0;
         } break;
+    }
     if(last_state != status->state) {
         // Clear screen on state change
         goto_mode = 2;
         trigger_drawsetpoint = 1;
         ssd1306_clearscreen();
+    }
     // Last buttonpress
     sw_btn_last = sw_btn;
     sw_up_last = sw_up;
     sw_down_last = sw_down;
     sw_left_last = sw_left;
     sw_right_last = sw_right;
+}
 int32_t temp_last = 43002;
 int32_t setpoint_last = 10023;
 static int32_t temp_last = 43002;
 static int32_t setpoint_last = 10023;
 void draw_setpoint(therm_status_t* status) {
     // FIXME: need to do this when switching modes too
     if(status->temp != temp_last || trigger_drawsetpoint) {
         char tempstr[3];
         itoa_fp(status->temp, status->temp_frac, tempstr);
         ssd1306_DrawStringBig("      ", 3, 0);
         ssd1306_DrawStringBig(tempstr, 3, 0);
+    }
     if(trigger_drawsetpoint)
         ssd1306_DrawStringBig(">", 3, 74);
     if(status->setpoint != setpoint_last || trigger_drawsetpoint) {
         char tempstr[3];
         itoa(status->setpoint, tempstr, 10);
         ssd1306_DrawStringBig("   ", 3, 90);
         ssd1306_DrawStringBig(tempstr, 3, 90);
+    }
     trigger_drawsetpoint = 0;
     setpoint_last = status->setpoint;
     temp_last = status->temp;
+}
 // vim:softtabstop=4 shiftwidth=4 expandtab

gpio.c

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 #include "gpio.h"
 #include "config.h"
 #include "stm32f0xx_hal_conf.h"
 #include <inttypes.h>
 // Increase on each press, and increase at a fast rate after duration elapsed of continuously holding down... somehow...
 uint32_t change_time_reset = 0;
 void user_input(uint16_t* to_modify)
+{
     if(CHANGE_ELAPSED) {
         if(!HAL_GPIO_ReadPin(SW_UP) ) {
             CHANGE_RESET;
             (*to_modify)++;
+        }
         else if(!HAL_GPIO_ReadPin(SW_DOWN) && (*to_modify) > 0) {
             CHANGE_RESET;
             (*to_modify)--;
+        }
+    }
+}
 void user_input_signed(int16_t* to_modify)
+{
     // TODO: Bounds check on int16_t
     if(CHANGE_ELAPSED) {
         if(!HAL_GPIO_ReadPin(SW_UP) ) {
             CHANGE_RESET;
             (*to_modify)++;
+        }
         else if(!HAL_GPIO_ReadPin(SW_DOWN)) {
             CHANGE_RESET;
             (*to_modify)--;
+        }
+    }
+}
-void init_gpio(void) {
+void gpio_init(void) {
   GPIO_InitTypeDef GPIO_InitStruct;
     /* GPIO Ports Clock Enable */
   __GPIOF_CLK_ENABLE();
   __GPIOA_CLK_ENABLE();
   __GPIOB_CLK_ENABLE();
   __SPI1_CLK_ENABLE();
   //////////////////
   // PORT F       //
   //////////////////
   // PORTF OUTPUT
   // Configure GPIO pin : PF0 [Power LED]
   GPIO_InitStruct.Pin = GPIO_PIN_0;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
   // PORTF UNUSED
   // Configure GPIO pin : PF1
   GPIO_InitStruct.Pin = GPIO_PIN_1;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
   //////////////////
   // PORT A       //
   //////////////////
   // PORT A OUTPUT
   // Configure GPIO pins : (SSR+ CS_OLED RES D/C CS_MAX)
   GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_15;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // PORTA INPUT
   // Configure GPIO pin : PA15
 //  GPIO_InitStruct.Pin = GPIO_PIN_15;
 //  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
 //  GPIO_InitStruct.Pull = GPIO_PULLUP;
 //  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // PORTA UNUSED
   // Configure GPIO pins : PA0 PA8
   GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_8;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // USART1 [PORTA]
   // Configure GPIO pins : PA9 PA10
   GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
   GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // SPI1 [PORTA]
   // Configure GPIO pin : PA, MOSI, SCK
   GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_5;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // Configure GPIO pin: PA, MISO
   GPIO_InitStruct.Pin = GPIO_PIN_6;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
   // USB [PORTA]
   /** USB GPIO Configuration
   PA11   ------> USB_DM
   PA12   ------> USB_DP
   */
   // Configure GPIO pin : PA, D+, D-
   GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Alternate = GPIO_AF2_USB; // Can also be AF5
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

gpio.h

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 #ifndef GPIO_H
 #define GPIO_H
 #include <inttypes.h>
 #define CHANGE_PERIOD_MS 100
 #define CHANGE_ELAPSED (HAL_GetTick() - change_time_reset) > CHANGE_PERIOD_MS
 #define CHANGE_RESET change_time_reset = HAL_GetTick()
 void user_input(uint16_t* to_modify);
 void user_input_signed(int16_t* to_modify);
-void init_gpio(void);
+void gpio_init(void);
 #endif
 // vim:softtabstop=4 shiftwidth=4 expandtab

main.c

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 #include "stm32f0xx_hal.h"
 #include "config.h"
 #include "syslib.h"
 #include "states.h"
 #include "ssd1306.h"
 #include "max31855.h"
 #include "gpio.h"
 #include "spi.h"
 #include "flash.h"
 #include "stringhelpers.h"
 #include "display.h"
 #include "storage.h"
 #include "usb_device.h"
 #include "usbd_cdc_if.h"
 // Prototypes
 void process();
 therm_settings_t set;
 therm_status_t status;
 // Globalish setting vars
 SPI_HandleTypeDef hspi1;
 static __IO uint32_t TimingDelay;
 void deinit(void)
+{
     HAL_DeInit();
+}
 volatile int i=0;
 int main(void)
+{
     // Initialize HAL
     hal_init();
     // Configure the system clock
-    systemclock_config();
+    systemclock_init();
     // Unset bootloader option bytes (if set)
     void bootloader_unset(void);
     // Init GPIO
-    init_gpio();
+    gpio_init();
     // Init USB (TODO: Handle plugged/unplugged with external power)
     MX_USB_DEVICE_Init();
 //    set.val.usb_plugged =
     // USB startup delay
     HAL_Delay(1000);
     HAL_GPIO_WritePin(LED_POWER, 1);
     // Enter into bootloader if up button pressed on boot
     if(!HAL_GPIO_ReadPin(SW_UP))
         bootloader_enter();
     // Init SPI busses
-    init_spi();
+    spi_init();
     // Init OLED over SPI
     ssd1306_Init();
     ssd1306_clearscreen();
     // Default settings
     set.val.boottobrew = 0;
     set.val.temp_units = TEMP_UNITS_CELSIUS;
     set.val.windup_guard = 1;
     set.val.k_p = 1;
     set.val.k_i = 1;
     set.val.k_d = 1;
     set.val.ignore_tc_error = 0;
     set.val.setpoint_brew = 0;
     set.val.setpoint_steam = 0;
     // Default status
     status.temp = 0;
     status.temp_frac = 0;
     status.state_resume = 0;
     status.state = STATE_IDLE;
     status.setpoint = 0;
     status.pid_enabled = 0;
     // Load settings (if any) from EEPROM
     restore_settings(&set);
     // Go to brew instead of idle if configured thusly
     if(set.val.boottobrew)
       status.state = STATE_PREHEAT_BREW;
     // Startup screen
     ssd1306_DrawString("therm v0.2", 1, 40);
     ssd1306_DrawString("protofusion.org/therm", 3, 0);
     HAL_Delay(1500);
     flash_restore(&set);
     HAL_Delay(1500);
     ssd1306_clearscreen();
     // Main loop
     while(1)
+    {
         // Process sensor inputs
         process();
         // Run state machine
         display_process(&set, &status);
+    }
+}
 // PID implementation
 // TODO: Make struct that has the last_temp and i_state in it, pass by ref. Make struct that has other input values maybe.
 int16_t last_pid_temp = 0;
 uint8_t last_pid_temp_frac = 0;
 int32_t i_state = 0;
 int16_t update_pid(uint16_t k_p, uint16_t k_i, uint16_t k_d, int16_t temp, uint8_t temp_frac, int16_t setpoint)
+{
   // Calculate instantaneous error
   int16_t error = setpoint - temp; // TODO: Use fixed point fraction
   // Proportional component
   int32_t p_term = k_p * error;
   // Error accumulator (integrator)
   i_state += error;
   // to prevent the iTerm getting huge from lots of
   //  error, we use a "windup guard"
   // (this happens when the machine is first turned on and
   // it cant help be cold despite its best efforts)
   // not necessary, but this makes windup guard values
   // relative to the current iGain
   int32_t windup_guard_res = set.val.windup_guard / k_i;
   // Calculate integral term with windup guard
   if (i_state > windup_guard_res)
     i_state = windup_guard_res;
   else if (i_state < -windup_guard_res)
     i_state = -windup_guard_res;
   int32_t i_term = k_i * i_state;
   // Calculate differential term (slope since last iteration)
   int32_t d_term = (k_d * (status.temp - last_pid_temp));
   // Save temperature for next iteration
   last_pid_temp = status.temp;
   last_pid_temp_frac = status.temp_frac;
   int16_t result = p_term + i_term - d_term;
   // Put out tenths of percent, 0-1000.
   if(result > 1000)
     result = 1000;
   else if(result < -1000)
     result = -1000;
   // Return feedback
   return result;
+}
 uint32_t last_ssr_on = 0;
 uint32_t last_vcp_tx = 0;
 uint32_t last_led = 0;
 uint32_t last_pid = 0;
 int16_t ssr_output = 0; // Duty cycle of ssr, 0 to SSR_PERIOD
 // Turn SSR output on/off according to set duty cycle.
 // TODO: Eventually maybe replace with a very slow timer or something. Double-check this code...
 void process()
+{
     uint32_t ticks = HAL_GetTick();
     if(ticks - last_led > 400)
+    {
         last_led = ticks;
+    }
     if((ticks - last_pid > PID_PERIOD))
+    {
         #ifdef MAX31855_TC_SENSOR
-        max31855_readtemp(&hspi1, &set, &status); // Read MAX31855
+        max31855_readtemp(spi_get(), &set, &status); // Read MAX31855
         #endif
         #ifdef MAX31865_RTD_SENSOR
         max31865_readtemp(&set, &status);
         #endif
     HAL_GPIO_TogglePin(LED_POWER);
         if(status.pid_enabled)
+        {
             // Get ssr output for next time
             int16_t power_percent = update_pid(set.val.k_p, set.val.k_i, set.val.k_d, status.temp, status.temp_frac, status.setpoint);
             //power-percent is 0-1000
             ssr_output = power_percent; //(((uint32_t)SSR_PERIOD * (uint32_t)10 * (uint32_t)100) * power_percent) / (uint32_t)1000000;
+        }
         else
+        {
             ssr_output = 0;
+        }
         last_pid = ticks;
+    }
     // Every 200ms, set the SSR on unless output is 0
     if((ticks - last_ssr_on > SSR_PERIOD))
+    {
         // Only support heating (ssr_output > 0) right now
         if(ssr_output > 0) {
             char tempstr[6];
             itoa(ssr_output, tempstr, 10);
             ssd1306_DrawString(tempstr, 0, 90);
             HAL_GPIO_WritePin(SSR_PIN, 1);
             last_ssr_on = ticks;
+        }
+    }
     // Kill SSR after elapsed period less than SSR_PERIOD
     if(ticks - last_ssr_on > ssr_output || ssr_output == 0)
+    {
         HAL_GPIO_WritePin(SSR_PIN, 0);
+    }
     if(ticks - last_vcp_tx > VCP_TX_FREQ)
+    {
         // Print temp to cdc
         char tempstr[16];
         itoa_fp(status.temp, status.temp_frac, tempstr);
         uint8_t numlen = strlen(tempstr);
         tempstr[numlen] = '\r';
         tempstr[numlen+1] = '\n';
 //        if(set.val.usb_plugged)
 //            CDC_Transmit_FS(tempstr, numlen+2);
        // while(CDC_Transmit_FS("\r\n", 2) == USBD_BUSY);
         last_vcp_tx = ticks;
+    }
+}
 // vim:softtabstop=4 shiftwidth=4 expandtab

spi.c

➞

Show inline comments

 #include "stm32f0xx_hal_conf.h"
 #include "stm32f0xx_hal_gpio_ex.h"
-extern SPI_HandleTypeDef hspi1;
 SPI_HandleTypeDef hspi1;
-void init_spi()
+void spi_init()
+{
     hspi1.Instance = SPI1;
     hspi1.Init.Mode = SPI_MODE_MASTER;
     hspi1.Init.Direction = SPI_DIRECTION_2LINES;
     hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
     hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
     hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
     hspi1.Init.NSS = SPI_NSS_SOFT;
     hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
     hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
     hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
     hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
     hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLED;
     HAL_SPI_Init(&hspi1);
+}
 SPI_HandleTypeDef* spi_get()
+{
     return &hspi1;
+}
 // vim:softtabstop=4 shiftwidth=4 expandtab

spi.h

➞

Show inline comments

 #ifndef SPI_H
 #define SPI_H
 #include "stm32f0xx_hal_conf.h"
 void init_spi();
 void spi_init();
 SPI_HandleTypeDef* spi_get();
 #endif
 // vim:softtabstop=4 shiftwidth=4 expandtab

ssd1306.c

➞

Show inline comments

 #include "stm32f0xx_hal_conf.h"
 #include "ssd1306.h"
 // Write command to OLED
 void WriteCommand(unsigned char command)
+{
   SSD_CS_Low();
   SSD_A0_Low();
   SPI_SendByte(command);
   SSD_CS_High();
+}
 // Write data to OLED
 void WriteData(unsigned char data)
+{
   SSD_CS_Low();
   SSD_A0_High();
   SPI_SendByte(data);
   SSD_CS_High();
+}
 // Initialize OLED
 void ssd1306_Init(void)
+{
   /* Generate a reset */
   SSD_Reset_Low();
   uint32_t i;
   for(i=5000; i>1; i--)
   SSD_Reset_High();
   WriteCommand(0xAE);
   WriteCommand(0xD5);
   WriteCommand(0x80);
   WriteCommand(0xA8);
   WriteCommand(0x1F);
   WriteCommand(0xD3);
   WriteCommand(0x00);
   WriteCommand(0x40 | 0x00); // line #0
   WriteCommand(0x8D);
   WriteCommand(0x14); //10 or 14 if not externalvcc
   WriteCommand(0x20);
   WriteCommand(0x00);
 //  WriteCommand(0xA0 | 0x1); // segremap (normal)
   WriteCommand(0xA0); // segremap (flip)
 //  WriteCommand(0xC8); // comscandec (normal)
   WriteCommand(0xC0); // comscandec (flip)
   WriteCommand(0xDA); // setcompins
   WriteCommand(0x02);
   WriteCommand(0x81); // contrast
   WriteCommand(0x0F); // contrast value. 8f is a good one.
   WriteCommand(0xD9);
   WriteCommand(0xF1); //22 or F1 if not externalvcc
   WriteCommand(0xDB);
   WriteCommand(0x40);
   WriteCommand(0xA4); // dispalyallon_resume
   WriteCommand(0xA6); // normaldisplay
   WriteCommand(0xAF); // display on
+}
 // Times New Roman font
 const char fontData[][5] =
+static const char fontData[][5] =
 {                                       // Refer to "Times New Roman" Font Database
                                         //   Basic Characters
     {0x00,0x00,0x00,0x00,0x00},         //   (  0)    - 0x0020 No-Break Space
     {0x00,0x00,0x4F,0x00,0x00},         //   (  1)  ! - 0x0021 Exclamation Mark
     {0x00,0x07,0x00,0x07,0x00},         //   (  2)  " - 0x0022 Quotation Mark
     {0x14,0x7F,0x14,0x7F,0x14},         //   (  3)  # - 0x0023 Number Sign
     {0x24,0x2A,0x7F,0x2A,0x12},         //   (  4)  $ - 0x0024 Dollar Sign
     {0x23,0x13,0x08,0x64,0x62},         //   (  5)  % - 0x0025 Percent Sign
     {0x36,0x49,0x55,0x22,0x50},         //   (  6)  & - 0x0026 Ampersand
     {0x00,0x05,0x03,0x00,0x00},         //   (  7)  ' - 0x0027 Apostrophe
     {0x00,0x1C,0x22,0x41,0x00},         //   (  8)  ( - 0x0028 Left Parenthesis
     {0x00,0x41,0x22,0x1C,0x00},         //   (  9)  ) - 0x0029 Right Parenthesis
     {0x14,0x08,0x3E,0x08,0x14},         //   ( 10)  * - 0x002A Asterisk
     {0x08,0x08,0x3E,0x08,0x08},         //   ( 11)  + - 0x002B Plus Sign
     {0x00,0x50,0x30,0x00,0x00},         //   ( 12)  , - 0x002C Comma
     {0x08,0x08,0x08,0x08,0x08},         //   ( 13)  - - 0x002D Hyphen-Minus
     {0x00,0x60,0x60,0x00,0x00},         //   ( 14)  . - 0x002E Full Stop
     {0x20,0x10,0x08,0x04,0x02},         //   ( 15)  / - 0x002F Solidus
     {0x3E,0x51,0x49,0x45,0x3E},         //   ( 16)  0 - 0x0030 Digit Zero
     {0x00,0x42,0x7F,0x40,0x00},         //   ( 17)  1 - 0x0031 Digit One
     {0x42,0x61,0x51,0x49,0x46},         //   ( 18)  2 - 0x0032 Digit Two
     {0x21,0x41,0x45,0x4B,0x31},         //   ( 19)  3 - 0x0033 Digit Three
     {0x18,0x14,0x12,0x7F,0x10},         //   ( 20)  4 - 0x0034 Digit Four
     {0x27,0x45,0x45,0x45,0x39},         //   ( 21)  5 - 0x0035 Digit Five
     {0x3C,0x4A,0x49,0x49,0x30},         //   ( 22)  6 - 0x0036 Digit Six
     {0x01,0x71,0x09,0x05,0x03},         //   ( 23)  7 - 0x0037 Digit Seven
     {0x36,0x49,0x49,0x49,0x36},         //   ( 24)  8 - 0x0038 Digit Eight
     {0x06,0x49,0x49,0x29,0x1E},         //   ( 25)  9 - 0x0039 Dight Nine
     {0x00,0x36,0x36,0x00,0x00},         //   ( 26)  : - 0x003A Colon
     {0x00,0x56,0x36,0x00,0x00},         //   ( 27)  ; - 0x003B Semicolon
     {0x08,0x14,0x22,0x41,0x00},         //   ( 28)  < - 0x003C Less-Than Sign
     {0x14,0x14,0x14,0x14,0x14},         //   ( 29)  = - 0x003D Equals Sign
     {0x00,0x41,0x22,0x14,0x08},         //   ( 30)  > - 0x003E Greater-Than Sign
     {0x02,0x01,0x51,0x09,0x06},         //   ( 31)  ? - 0x003F Question Mark
     {0x32,0x49,0x79,0x41,0x3E},         //   ( 32)  @ - 0x0040 Commercial At
     {0x7E,0x11,0x11,0x11,0x7E},         //   ( 33)  A - 0x0041 Latin Capital Letter A
     {0x7F,0x49,0x49,0x49,0x36},         //   ( 34)  B - 0x0042 Latin Capital Letter B
     {0x3E,0x41,0x41,0x41,0x22},         //   ( 35)  C - 0x0043 Latin Capital Letter C
     {0x7F,0x41,0x41,0x22,0x1C},         //   ( 36)  D - 0x0044 Latin Capital Letter D
     {0x7F,0x49,0x49,0x49,0x41},         //   ( 37)  E - 0x0045 Latin Capital Letter E
     {0x7F,0x09,0x09,0x09,0x01},         //   ( 38)  F - 0x0046 Latin Capital Letter F
     {0x3E,0x41,0x49,0x49,0x7A},         //   ( 39)  G - 0x0047 Latin Capital Letter G
     {0x7F,0x08,0x08,0x08,0x7F},         //   ( 40)  H - 0x0048 Latin Capital Letter H
     {0x00,0x41,0x7F,0x41,0x00},         //   ( 41)  I - 0x0049 Latin Capital Letter I
     {0x20,0x40,0x41,0x3F,0x01},         //   ( 42)  J - 0x004A Latin Capital Letter J
     {0x7F,0x08,0x14,0x22,0x41},         //   ( 43)  K - 0x004B Latin Capital Letter K
     {0x7F,0x40,0x40,0x40,0x40},         //   ( 44)  L - 0x004C Latin Capital Letter L
     {0x7F,0x02,0x0C,0x02,0x7F},         //   ( 45)  M - 0x004D Latin Capital Letter M
     {0x7F,0x04,0x08,0x10,0x7F},         //   ( 46)  N - 0x004E Latin Capital Letter N
     {0x3E,0x41,0x41,0x41,0x3E},         //   ( 47)  O - 0x004F Latin Capital Letter O
     {0x7F,0x09,0x09,0x09,0x06},         //   ( 48)  P - 0x0050 Latin Capital Letter P
     {0x3E,0x41,0x51,0x21,0x5E},         //   ( 49)  Q - 0x0051 Latin Capital Letter Q
     {0x7F,0x09,0x19,0x29,0x46},         //   ( 50)  R - 0x0052 Latin Capital Letter R
     {0x46,0x49,0x49,0x49,0x31},         //   ( 51)  S - 0x0053 Latin Capital Letter S
     {0x01,0x01,0x7F,0x01,0x01},         //   ( 52)  T - 0x0054 Latin Capital Letter T
     {0x3F,0x40,0x40,0x40,0x3F},         //   ( 53)  U - 0x0055 Latin Capital Letter U
     {0x1F,0x20,0x40,0x20,0x1F},         //   ( 54)  V - 0x0056 Latin Capital Letter V
     {0x3F,0x40,0x38,0x40,0x3F},         //   ( 55)  W - 0x0057 Latin Capital Letter W
     {0x63,0x14,0x08,0x14,0x63},         //   ( 56)  X - 0x0058 Latin Capital Letter X
     {0x07,0x08,0x70,0x08,0x07},         //   ( 57)  Y - 0x0059 Latin Capital Letter Y
     {0x61,0x51,0x49,0x45,0x43},         //   ( 58)  Z - 0x005A Latin Capital Letter Z
     {0x00,0x7F,0x41,0x41,0x00},         //   ( 59)  [ - 0x005B Left Square Bracket
     {0x02,0x04,0x08,0x10,0x20},         //   ( 60)  \ - 0x005C Reverse Solidus
     {0x00,0x41,0x41,0x7F,0x00},         //   ( 61)  ] - 0x005D Right Square Bracket
     {0x04,0x02,0x01,0x02,0x04},         //   ( 62)  ^ - 0x005E Circumflex Accent
     {0x40,0x40,0x40,0x40,0x40},         //   ( 63)  _ - 0x005F Low Line
     {0x01,0x02,0x04,0x00,0x00},         //   ( 64)  ` - 0x0060 Grave Accent
     {0x20,0x54,0x54,0x54,0x78},         //   ( 65)  a - 0x0061 Latin Small Letter A
     {0x7F,0x48,0x44,0x44,0x38},         //   ( 66)  b - 0x0062 Latin Small Letter B
     {0x38,0x44,0x44,0x44,0x20},         //   ( 67)  c - 0x0063 Latin Small Letter C
     {0x38,0x44,0x44,0x48,0x7F},         //   ( 68)  d - 0x0064 Latin Small Letter D
     {0x38,0x54,0x54,0x54,0x18},         //   ( 69)  e - 0x0065 Latin Small Letter E
     {0x08,0x7E,0x09,0x01,0x02},         //   ( 70)  f - 0x0066 Latin Small Letter F
     {0x06,0x49,0x49,0x49,0x3F},         //   ( 71)  g - 0x0067 Latin Small Letter G
     {0x7F,0x08,0x04,0x04,0x78},         //   ( 72)  h - 0x0068 Latin Small Letter H
     {0x00,0x44,0x7D,0x40,0x00},         //   ( 73)  i - 0x0069 Latin Small Letter I
     {0x20,0x40,0x44,0x3D,0x00},         //   ( 74)  j - 0x006A Latin Small Letter J
     {0x7F,0x10,0x28,0x44,0x00},         //   ( 75)  k - 0x006B Latin Small Letter K
     {0x00,0x41,0x7F,0x40,0x00},         //   ( 76)  l - 0x006C Latin Small Letter L
     {0x7C,0x04,0x18,0x04,0x7C},         //   ( 77)  m - 0x006D Latin Small Letter M
     {0x7C,0x08,0x04,0x04,0x78},         //   ( 78)  n - 0x006E Latin Small Letter N
     {0x38,0x44,0x44,0x44,0x38},         //   ( 79)  o - 0x006F Latin Small Letter O
     {0x7C,0x14,0x14,0x14,0x08},         //   ( 80)  p - 0x0070 Latin Small Letter P
     {0x08,0x14,0x14,0x18,0x7C},         //   ( 81)  q - 0x0071 Latin Small Letter Q
     {0x7C,0x08,0x04,0x04,0x08},         //   ( 82)  r - 0x0072 Latin Small Letter R
     {0x48,0x54,0x54,0x54,0x20},         //   ( 83)  s - 0x0073 Latin Small Letter S
     {0x04,0x3F,0x44,0x40,0x20},         //   ( 84)  t - 0x0074 Latin Small Letter T
     {0x3C,0x40,0x40,0x20,0x7C},         //   ( 85)  u - 0x0075 Latin Small Letter U
     {0x1C,0x20,0x40,0x20,0x1C},         //   ( 86)  v - 0x0076 Latin Small Letter V
     {0x3C,0x40,0x30,0x40,0x3C},         //   ( 87)  w - 0x0077 Latin Small Letter W
     {0x44,0x28,0x10,0x28,0x44},         //   ( 88)  x - 0x0078 Latin Small Letter X
     {0x0C,0x50,0x50,0x50,0x3C},         //   ( 89)  y - 0x0079 Latin Small Letter Y
     {0x44,0x64,0x54,0x4C,0x44},         //   ( 90)  z - 0x007A Latin Small Letter Z
     {0x00,0x08,0x36,0x41,0x00},         //   ( 91)  { - 0x007B Left Curly Bracket
     {0x00,0x00,0x7F,0x00,0x00},         //   ( 92)  | - 0x007C Vertical Line
     {0x00,0x41,0x36,0x08,0x00},         //   ( 93)  } - 0x007D Right Curly Bracket

system/interrupts.c

➞

Show inline comments

 /**
   ******************************************************************************
   * @file    stm32f0xx_it.c
   * @date    05/12/2014 20:22:27
   * @brief   Interrupt Service Routines.
   ******************************************************************************
+  *
   * COPYRIGHT(c) 2014 STMicroelectronics
+  *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *   1. Redistributions of source code must retain the above copyright notice,
   *      this list of conditions and the following disclaimer.
   *   2. Redistributions in binary form must reproduce the above copyright notice,
   *      this list of conditions and the following disclaimer in the documentation
   *      and/or other materials provided with the distribution.
   *   3. Neither the name of STMicroelectronics nor the names of its contributors
   *      may be used to endorse or promote products derived from this software
   *      without specific prior written permission.
+  *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
   ******************************************************************************
   */
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f0xx_hal.h"
 #include "stm32f0xx.h"
 #include "interrupts.h"
 /* USER CODE BEGIN 0 */
 /* USER CODE END 0 */
 /* External variables --------------------------------------------------------*/
 extern PCD_HandleTypeDef hpcd_USB_FS;
 /******************************************************************************/
 /*            Cortex-M0 Processor Interruption and Exception Handlers         */
 /******************************************************************************/
 /**
 * @brief This function handles USB global Interrupt (combined with EXTI line 18).
 */
 void USB_IRQHandler(void)
+{
   /* USER CODE BEGIN USB_IRQn 0 */
   /* USER CODE END USB_IRQn 0 */
   HAL_PCD_IRQHandler(&hpcd_USB_FS);
   /* USER CODE BEGIN USB_IRQn 1 */
   /* USER CODE END USB_IRQn 1 */
+}
 /**
 * @brief This function handles System tick timer.
 */
 void SysTick_Handler(void)
+{
   /* USER CODE BEGIN SysTick_IRQn 0 */
   /* USER CODE END SysTick_IRQn 0 */
   HAL_IncTick();
   HAL_SYSTICK_IRQHandler();
   /* USER CODE BEGIN SysTick_IRQn 1 */
   /* USER CODE END SysTick_IRQn 1 */
+}
 /* USER CODE BEGIN 1 */
 /* USER CODE END 1 */
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

system/interrupts.h

➞

Show inline comments

 /**
   ******************************************************************************
   * @file    stm32f0xx_it.h
   * @date    05/12/2014 20:22:27
   * @brief   This file contains the headers of the interrupt handlers.
   ******************************************************************************
+  *
   * COPYRIGHT(c) 2014 STMicroelectronics
+  *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *   1. Redistributions of source code must retain the above copyright notice,
   *      this list of conditions and the following disclaimer.
   *   2. Redistributions in binary form must reproduce the above copyright notice,
   *      this list of conditions and the following disclaimer in the documentation
   *      and/or other materials provided with the distribution.
   *   3. Neither the name of STMicroelectronics nor the names of its contributors
   *      may be used to endorse or promote products derived from this software
   *      without specific prior written permission.
+  *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
   ******************************************************************************
   */
 /* Define to prevent recursive inclusion -------------------------------------*/
 #ifndef __STM32F0xx_IT_H
 #define __STM32F0xx_IT_H
 #ifdef __cplusplus
  extern "C" {
 #endif
 /* Includes ------------------------------------------------------------------*/
 /* Exported types ------------------------------------------------------------*/
 /* Exported constants --------------------------------------------------------*/
 /* Exported macro ------------------------------------------------------------*/
 /* Exported functions ------------------------------------------------------- */
 void USB_IRQHandler(void);
 void SysTick_Handler(void);
 #ifdef __cplusplus
+}
 #endif
 #endif /* __STM32F0xx_IT_H */
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

system/syslib.c

➞

Show inline comments

 #include "stm32f0xx_hal.h"
 /* Notes:
 Need to have DFU jump right to the program to unset those option bytes, or somehow have dfu-util unset them. Probably try using the :leave parameter...
        Flashing a binary file to address 0x8004000 of device memory and ask the device to leave DFU mode:
          $ dfu-util -a 0 -s 0x08004000:leave -D /path/to/image.bin
 */
 // Unset bootloader option bytes
 void bootloader_unset(void)
+{
     FLASH_OBProgramInitTypeDef OBParam;
     HAL_FLASHEx_OBGetConfig(&OBParam);
     if(OBParam.USERConfig != 0xFF)
+    {
         OBParam.OptionType = OPTIONBYTE_USER;
         OBParam.USERConfig = 0xFF;
         HAL_FLASH_Unlock();
         HAL_FLASH_OB_Unlock();
         HAL_FLASHEx_OBErase();
         HAL_FLASHEx_OBProgram(&OBParam);
         HAL_FLASH_OB_Lock();
         HAL_FLASH_OB_Launch();
+    }
+}
 // See thread: https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fJump%20to%20USB%20DFU%20Bootloader%20in%20startup%20code%20on%20STM32F042&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=185
 // Set option bytes to enter bootloader upon reset
 void bootloader_enter(void) {
     FLASH_OBProgramInitTypeDef OBParam;
     HAL_FLASHEx_OBGetConfig(&OBParam);
     // FIXME TODO: CHECK THESE OPTION BYTES, he was using an F1 processor. What about the switch flag?
     OBParam.OptionType = OPTIONBYTE_USER;
     /*Reset NBOOT0 and BOOT_SEL,  see: RM 2.5 Boot configuration*/
     OBParam.USERConfig = 0x77; //Sorry for magic number :)
     HAL_FLASH_Unlock();
     HAL_FLASH_OB_Unlock();
     HAL_FLASHEx_OBErase();
     HAL_FLASHEx_OBProgram(&OBParam);
     HAL_FLASH_OB_Lock();
     HAL_FLASH_Lock();
     HAL_FLASH_OB_Launch();
+}
 // Clock configuration
-void systemclock_config(void)
+void systemclock_init(void)
+{
   RCC_OscInitTypeDef RCC_OscInitStruct;
   RCC_ClkInitTypeDef RCC_ClkInitStruct;
   RCC_PeriphCLKInitTypeDef PeriphClkInit;
   // Enable HSI48 for main system clock
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_HSI14;
   RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
   RCC_OscInitStruct.HSI14State = RCC_HSI14_ON;
   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_HSI48;
   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
   HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
   PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
   PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
   HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
   __SYSCFG_CLK_ENABLE();
+}

system/syslib.h

➞

Show inline comments

 #ifndef BOOTLIB_H
 #define BOOTLIB_H
 void bootloader_unset(void);
 void bootloader_enter(void);
-void systemclock_config(void);
+void systemclock_init(void);
 #endif

system/usbd_conf.c

➞

Show inline comments

 /**
   ******************************************************************************
   * @file           : usbd_conf.c
   * @date           : 05/12/2014 20:22:27
   * @version        : v1.0_Cube
   * @brief          : This file implements the board support package for the USB device library
   ******************************************************************************
+  *
   * COPYRIGHT(c) 2014 STMicroelectronics
+  *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 1. Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   * this list of conditions and the following disclaimer in the documentation
   * and/or other materials provided with the distribution.
   * 3. Neither the name of STMicroelectronics nor the names of its contributors
   * may be used to endorse or promote products derived from this software
   * without specific prior written permission.
+  *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
   ******************************************************************************
 */
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f0xx.h"
 #include "stm32f0xx_hal.h"
 #include "usbd_def.h"
 #include "usbd_core.h"
 /* Private typedef -----------------------------------------------------------*/
 /* Private define ------------------------------------------------------------*/
 /* Private macro -------------------------------------------------------------*/
 /* Private variables ---------------------------------------------------------*/
 PCD_HandleTypeDef hpcd_USB_FS;
 /* USER CODE BEGIN 0 */
 __IO uint32_t remotewakeupon=0;
 /* USER CODE END 0 */
 /* Private function prototypes -----------------------------------------------*/
 /* Private functions ---------------------------------------------------------*/
 /* USER CODE BEGIN 1 */
 static void SystemClockConfig_Resume(void);
 /* USER CODE END 1 */
 void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);
-extern void systemclock_config(void);
+extern void systemclock_init(void);
 /*******************************************************************************
 		       LL Driver Callbacks (PCD -> USB Device Library)
 *******************************************************************************/
 /* MSP Init */
 void HAL_PCD_MspInit(PCD_HandleTypeDef* hpcd)
+{
   if(hpcd->Instance==USB)
+  {
   /* USER CODE BEGIN USB_MspInit 0 */
   /* USER CODE END USB_MspInit 0 */
     /* Peripheral clock enable */
     __USB_CLK_ENABLE();
     HAL_NVIC_SetPriority(USB_IRQn, 0, 0);
     HAL_NVIC_EnableIRQ(USB_IRQn);
   /* USER CODE BEGIN USB_MspInit 1 */
   /* USER CODE END USB_MspInit 1 */
+  }
+}
 void HAL_PCD_MspDeInit(PCD_HandleTypeDef* hpcd)
+{
   if(hpcd->Instance==USB)
+  {
   /* USER CODE BEGIN USB_MspDeInit 0 */
   /* USER CODE END USB_MspDeInit 0 */
     /* Peripheral clock disable */
     __USB_CLK_DISABLE();
     /* Peripheral interrupt Deinit*/
     HAL_NVIC_DisableIRQ(USB_IRQn);
   /* USER CODE BEGIN USB_MspDeInit 1 */
   /* USER CODE END USB_MspDeInit 1 */
+  }
+}
 /**
   * @brief  Setup stage callback
   * @param  hpcd: PCD handle
   * @retval None
   */
 void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
+{
   USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
+}
 /**
   * @brief  Data Out stage callback.
   * @param  hpcd: PCD handle
   * @param  epnum: Endpoint Number
   * @retval None
   */
 void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
   USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
+}
 /**
   * @brief  Data In stage callback..
   * @param  hpcd: PCD handle
   * @param  epnum: Endpoint Number
   * @retval None
   */
 void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
   USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
+}
 /**
   * @brief  SOF callback.
   * @param  hpcd: PCD handle
   * @retval None
   */
 void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
+{
   USBD_LL_SOF(hpcd->pData);
+}
 /**
   * @brief  Reset callback.
   * @param  hpcd: PCD handle
   * @retval None
   */
 void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
+{
   USBD_SpeedTypeDef speed = USBD_SPEED_FULL;
   /*Set USB Current Speed*/
   switch (hpcd->Init.speed)
+  {
@@ @@ -409,123 +409,123 @@ uint8_t USBD_LL_IsStallEP (USBD_HandleTy @@
   * @retval USBD Status
   */
 USBD_StatusTypeDef  USBD_LL_SetUSBAddress (USBD_HandleTypeDef *pdev, uint8_t dev_addr)
+{
   HAL_PCD_SetAddress(pdev->pData, dev_addr);
   return USBD_OK;
+}
 /**
   * @brief  Transmits data over an endpoint.
   * @param  pdev: Device handle
   * @param  ep_addr: Endpoint Number
   * @param  pbuf: Pointer to data to be sent
   * @param  size: Data size
   * @retval USBD Status
   */
 USBD_StatusTypeDef  USBD_LL_Transmit (USBD_HandleTypeDef *pdev,
 				      uint8_t  ep_addr,
 				      uint8_t  *pbuf,
 				      uint16_t  size)
+{
   HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
   return USBD_OK;
+}
 /**
   * @brief  Prepares an endpoint for reception.
   * @param  pdev: Device handle
   * @param  ep_addr: Endpoint Number
   * @param  pbuf: Pointer to data to be received
   * @param  size: Data size
   * @retval USBD Status
   */
 USBD_StatusTypeDef  USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev,
 					   uint8_t  ep_addr,
 					   uint8_t  *pbuf,
 					   uint16_t  size)
+{
   HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
   return USBD_OK;
+}
 /**
   * @brief  Returns the last transfered packet size.
   * @param  pdev: Device handle
   * @param  ep_addr: Endpoint Number
   * @retval Recived Data Size
   */
 uint32_t USBD_LL_GetRxDataSize  (USBD_HandleTypeDef *pdev, uint8_t  ep_addr)
+{
   return HAL_PCD_EP_GetRxCount(pdev->pData, ep_addr);
+}
 /**
   * @brief  Delays routine for the USB Device Library.
   * @param  Delay: Delay in ms
   * @retval None
   */
 void  USBD_LL_Delay (uint32_t Delay)
+{
   HAL_Delay(Delay);
+}
 /**
   * @brief  static single allocation.
   * @param  size: size of allocated memory
   * @retval None
   */
 void *USBD_static_malloc(uint32_t size)
+{
   static uint32_t mem[MAX_STATIC_ALLOC_SIZE];
   return mem;
+}
 /**
   * @brief  Dummy memory free
   * @param  *p pointer to allocated  memory address
   * @retval None
   */
 void USBD_static_free(void *p)
+{
+}
 /* USER CODE BEGIN 4 */
 /**
   * @brief  Configures system clock after wake-up from USB Resume CallBack:
   *         enable HSI, PLL and select PLL as system clock source.
   * @param  None
   * @retval None
   */
 static void SystemClockConfig_Resume(void)
+{
-	systemclock_config();
+	systemclock_init();
+}
 /* USER CODE END 4 */
 /**
 * @brief Software Device Connection
 * @param hpcd: PCD handle
 * @param state: connection state (0 : disconnected / 1: connected)
 * @retval None
 */
 void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)
+{
 /* USER CODE BEGIN 5 */
   if (state == 1)
+  {
     /* Configure Low Connection State */
+  }
   else
+  {
     /* Configure High Connection State */
+  }
 /* USER CODE END 5 */
+}
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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