sw: Add backlight test using pwm.

b311b466 · Matthieu Cattin · e03d3aed · b311b466 · b311b466 · b311b466
Commit b311b466 authored Aug 05, 2014 by Matthieu Cattin
Hide whitespace changes
Inline Side-by-side

Showing with 459 additions and 0 deletions

Makefile sw/backlight_test/Makefile +244 -0

flash.sh sw/backlight_test/flash.sh +3 -0

main.c sw/backlight_test/main.c +212 -0

No files found.
--- a/sw/backlight_test/Makefile
+++ b/sw/backlight_test/Makefile
+# Copyright (C) 2014 Julian Lewis
+# @author Maciej Suminski <maciej.suminski@cern.ch>
+#
+# 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 2
+# 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, you may find one here:
+# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# or you may search the http://www.gnu.org website for the version 2 license,
+# or you may write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+
+####################################################################
+# Makefile                                                         #
+####################################################################
+
+.SUFFIXES:				# ignore builtin rules
+.PHONY: all debug release clean flash
+
+####################################################################
+# Definitions                                                      #
+####################################################################
+
+DEVICE = EFM32GG330F1024
+PROJECTNAME = freewatch
+# Name of interface configuration file used by OpenOCD
+OOCD_IFACE ?= stlink-v2-1
+
+OBJ_DIR = build
+EXE_DIR = exe
+LST_DIR = lst
+
+####################################################################
+# Definitions of toolchain.                                        #
+# You might need to do changes to match your system setup          #
+####################################################################
+
+# Change path to the tools according to your system configuration
+# DO NOT add trailing whitespace chars, they do matter !
+WINDOWSCS  ?= GNU Tools ARM Embedded\4.7 2012q4
+LINUXCS    ?= /opt/gcc-arm-none-eabi-4_8-2014q2
+
+RMDIRS     := rm -rf
+RMFILES    := rm -rf
+ALLFILES   := /*.*
+NULLDEVICE := /dev/null
+SHELLNAMES := $(ComSpec)$(COMSPEC)
+
+# Try autodetecting the environment
+ifeq ($(SHELLNAMES),)
+  # Assume we are making on a Linux platform
+  TOOLDIR := $(LINUXCS)
+else
+  QUOTE :="
+  ifneq ($(COMSPEC),)
+    # Assume we are making on a mingw/msys/cygwin platform running on Windows
+    # This is a convenient place to override TOOLDIR, DO NOT add trailing
+    # whitespace chars, they do matter !
+    TOOLDIR := $(PROGRAMFILES)/$(WINDOWSCS)
+    ifeq ($(findstring cygdrive,$(shell set)),)
+      # We were not on a cygwin platform
+      NULLDEVICE := NUL
+    endif
+  else
+    # Assume we are making on a Windows platform
+    # This is a convenient place to override TOOLDIR, DO NOT add trailing
+    # whitespace chars, they do matter !
+    SHELL      := $(SHELLNAMES)
+    TOOLDIR    := $(ProgramFiles)/$(WINDOWSCS)
+    RMDIRS     := rd /s /q
+    RMFILES    := del /s /q
+    ALLFILES   := \*.*
+    NULLDEVICE := NUL
+  endif
+endif
+
+# Create directories and do a clean which is compatible with parallel make
+$(shell mkdir $(OBJ_DIR)>$(NULLDEVICE) 2>&1)
+$(shell mkdir $(EXE_DIR)>$(NULLDEVICE) 2>&1)
+$(shell mkdir $(LST_DIR)>$(NULLDEVICE) 2>&1)
+ifeq (clean,$(findstring clean, $(MAKECMDGOALS)))
+  ifneq ($(filter $(MAKECMDGOALS),all debug release),)
+    $(shell $(RMFILES) $(OBJ_DIR)$(ALLFILES)>$(NULLDEVICE) 2>&1)
+    $(shell $(RMFILES) $(EXE_DIR)$(ALLFILES)>$(NULLDEVICE) 2>&1)
+    $(shell $(RMFILES) $(LST_DIR)$(ALLFILES)>$(NULLDEVICE) 2>&1)
+  endif
+endif
+
+CC      = $(QUOTE)$(TOOLDIR)/bin/arm-none-eabi-gcc$(QUOTE)
+LD      = $(QUOTE)$(TOOLDIR)/bin/arm-none-eabi-ld$(QUOTE)
+AR      = $(QUOTE)$(TOOLDIR)/bin/arm-none-eabi-ar$(QUOTE)
+OBJCOPY = $(QUOTE)$(TOOLDIR)/bin/arm-none-eabi-objcopy$(QUOTE)
+DUMP    = $(QUOTE)$(TOOLDIR)/bin/arm-none-eabi-objdump$(QUOTE)
+
+####################################################################
+# Flags                                                            #
+####################################################################
+
+# -MMD : Don't generate dependencies on system header files.
+# -MP  : Add phony targets, useful when a h-file is removed from a project.
+# -MF  : Specify a file to write the dependencies to.
+DEPFLAGS = -MMD -MP -MF $(@:.o=.d)
+
+#
+# Add -Wa,-ahld=$(LST_DIR)/$(@F:.o=.lst) to CFLAGS to produce assembly list files
+#
+override CFLAGS += -D$(DEVICE) -Wall -Wextra -mcpu=cortex-m3 -mthumb \
+-mfix-cortex-m3-ldrd -ffunction-sections \
+-fdata-sections -fomit-frame-pointer -DDEBUG_EFM  \
+$(DEPFLAGS)
+
+override ASMFLAGS += -x assembler-with-cpp -D$(DEVICE) -Wall -Wextra -mcpu=cortex-m3 -mthumb
+
+#
+# NOTE: The -Wl,--gc-sections flag may interfere with debugging using gdb.
+#
+override LDFLAGS += -Xlinker -Map=$(LST_DIR)/$(PROJECTNAME).map -mcpu=cortex-m3 \
+-mthumb -T../common/Device/EnergyMicro/EFM32GG/Source/GCC/efm32gg.ld \
+ -Wl,--gc-sections
+
+LIBS = -Wl,--start-group -lgcc -lc -lnosys   -Wl,--end-group
+
+INCLUDEPATHS += \
+-I../common/CMSIS/Include \
+-I../common/Device/EnergyMicro/EFM32GG/Include \
+-I../common/emlib/inc \
+-I../common/drivers \
+-I../common/glib \
+-I../common
+
+####################################################################
+# Files                                                            #
+####################################################################
+
+C_SRC += \
+../common/Device/EnergyMicro/EFM32GG/Source/system_efm32gg.c \
+../common/drivers/lcd.c \
+../common/emlib/src/em_assert.c \
+../common/emlib/src/em_cmu.c \
+../common/emlib/src/em_emu.c \
+../common/emlib/src/em_gpio.c \
+../common/emlib/src/em_i2c.c \
+../common/emlib/src/em_int.c \
+../common/emlib/src/em_system.c \
+../common/emlib/src/em_rtc.c \
+../common/emlib/src/em_usart.c \
+../common/emlib/src/em_timer.c \
+../common/emlib/src/em_prs.c \
+../common/gfx/graphics.c \
+../common/gfx/font_helv11.c \
+../common/gfx/font_helv17.c \
+../common/gfx/font_helv17b.c \
+../common/gfx/font_xm4x5.c \
+../common/gfx/font_xm4x6.c \
+../common/udelay.c \
+../common/delay.c \
+../common/drivers/i2cdrv.c \
+../common/drivers/light_sensor.c \
+../common/drivers/altimeter.c \
+main.c
+#../common/drivers/display.c \
+#../common/drivers/displayls013b7dh03.c \
+#../common/drivers/displaypalemlib.c \
+
+s_SRC += 
+
+S_SRC += \
+../common/Device/EnergyMicro/EFM32GG/Source/GCC/startup_efm32gg.S
+
+####################################################################
+# Rules                                                            #
+####################################################################
+
+C_FILES = $(notdir $(C_SRC) )
+S_FILES = $(notdir $(S_SRC) $(s_SRC) )
+#make list of source paths, sort also removes duplicates
+C_PATHS = $(sort $(dir $(C_SRC) ) )
+S_PATHS = $(sort $(dir $(S_SRC) $(s_SRC) ) )
+
+C_OBJS = $(addprefix $(OBJ_DIR)/, $(C_FILES:.c=.o))
+S_OBJS = $(if $(S_SRC), $(addprefix $(OBJ_DIR)/, $(S_FILES:.S=.o)))
+s_OBJS = $(if $(s_SRC), $(addprefix $(OBJ_DIR)/, $(S_FILES:.s=.o)))
+C_DEPS = $(addprefix $(OBJ_DIR)/, $(C_FILES:.c=.d))
+OBJS = $(C_OBJS) $(S_OBJS) $(s_OBJS)
+
+vpath %.c $(C_PATHS)
+vpath %.s $(S_PATHS)
+vpath %.S $(S_PATHS)
+
+# Default build is debug build
+all:      debug
+
+debug:    CFLAGS += -DDEBUG -O0 -g
+debug:    $(EXE_DIR)/$(PROJECTNAME).bin
+
+release:  CFLAGS += -DNDEBUG -O0 -g 
+release:  $(EXE_DIR)/$(PROJECTNAME).bin
+
+# Create objects from C SRC files
+$(OBJ_DIR)/%.o: %.c
+	@echo "Building file: $<"
+	$(CC) $(CFLAGS) $(INCLUDEPATHS) -c -o $@ $<
+
+# Assemble .s/.S files
+$(OBJ_DIR)/%.o: %.s
+	@echo "Assembling $<"
+	$(CC) $(ASMFLAGS) $(INCLUDEPATHS) -c -o $@ $<
+
+$(OBJ_DIR)/%.o: %.S
+	@echo "Assembling $<"
+	$(CC) $(ASMFLAGS) $(INCLUDEPATHS) -c -o $@ $<
+
+# Link
+$(EXE_DIR)/$(PROJECTNAME).out: $(OBJS)
+	@echo "Linking target: $@"
+	$(CC) $(LDFLAGS) $(OBJS) $(LIBS) -lm -o $(EXE_DIR)/$(PROJECTNAME).out
+
+# Create binary file
+$(EXE_DIR)/$(PROJECTNAME).bin: $(EXE_DIR)/$(PROJECTNAME).out
+	@echo "Creating binary file"
+	$(OBJCOPY) -O binary $(EXE_DIR)/$(PROJECTNAME).out $(EXE_DIR)/$(PROJECTNAME).bin
+# Uncomment next line to produce assembly listing of entire program
+#	$(DUMP) -h -S -C $(EXE_DIR)/$(PROJECTNAME).out>$(LST_DIR)/$(PROJECTNAME)out.lst
+
+clean:
+ifeq ($(filter $(MAKECMDGOALS),all debug release),)
+	$(RMDIRS) $(OBJ_DIR) $(LST_DIR) $(EXE_DIR)
+endif
+
+flash: $(EXE_DIR)/$(PROJECTNAME).bin
+	openocd -s ../common/openocd -f interface/$(OOCD_IFACE).cfg -f init.cfg -c "program $(EXE_DIR)/$(PROJECTNAME).bin 0 verify reset"
+
+# include auto-generated dependency files (explicit rules)
+ifneq (clean,$(findstring clean, $(MAKECMDGOALS)))
+-include $(C_DEPS)
+endif
--- a/sw/backlight_test/flash.sh
+++ b/sw/backlight_test/flash.sh
+#! /bin/sh
+
+sudo OOCD_IFACE=stlink-v2 make flash
--- a/sw/backlight_test/main.c
+++ b/sw/backlight_test/main.c
+/*
+ * Copyright (C) 2014 Julian Lewis
+ * @author Maciej Suminski <maciej.suminski@cern.ch>
+ *
+ * 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 2
+ * 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, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @brief Main file.
+ */
+
+#include <stdio.h>
+#include <math.h>
+#include <delay.h>
+#include <i2cdrv.h>
+#include <em_device.h>
+#include <em_cmu.h>
+#include <em_gpio.h>
+#include <drivers/lcd.h>
+#include <drivers/light_sensor.h>
+#include <gfx/graphics.h>
+#include <drivers/altimeter.h>
+
+#include "em_emu.h"
+#include "em_prs.h"
+#include "em_system.h"
+#include "em_timer.h"
+#include "em_chip.h"
+
+
+#define PWM_FREQ 10000
+
+
+void TIMER1_IRQHandler(void)
+{
+  uint32_t compareValue;
+
+  /* Clear flag for TIMER1 overflow interrupt */
+  TIMER_IntClear(TIMER1, TIMER_IF_OF);
+
+  compareValue = TIMER_CaptureGet(TIMER1, 1);
+  /* increment duty-cycle or reset if reached TOP value */
+  if( compareValue == TIMER_TopGet(TIMER1))
+  {
+          TIMER_CompareBufSet(TIMER1, 1, 0);
+          TIMER_CompareBufSet(TIMER1, 2, 0);
+  }
+  else
+  {
+          compareValue += 10;
+          TIMER_CompareBufSet(TIMER1, 1, compareValue);
+          TIMER_CompareBufSet(TIMER1, 2, compareValue);
+  }
+}
+
+
+/**
+ * @brief  Main function
+ */
+int main(void)
+{
+        I2C_Init_TypeDef i2cInit = I2C_INIT_DEFAULT;
+
+        int x, y, i;
+        char str[20];
+        uint8_t err;
+        double temp = 0;
+        double pressure = 0;
+        double altitude = 0;
+        double lux;
+
+        CHIP_Init();
+
+        // Enable HFXO and select it for HF branch
+        CMU_OscillatorEnable(cmuOsc_HFXO, true, true);
+        CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFXO);
+
+        /* Setup SysTick Timer for 1 msec interrupts */
+        if (SysTick_Config(CMU_ClockFreqGet(cmuClock_CORE) / 1000)) while (1);
+
+        CMU_ClockEnable(cmuClock_HFPER, true);
+        CMU_ClockEnable(cmuClock_GPIO, true);
+
+        CMU_ClockEnable(cmuClock_TIMER1, true);
+
+        // Backlight LEDs
+        GPIO_PinModeSet(gpioPortE, 11, gpioModePushPull, 0);
+        GPIO_PinModeSet(gpioPortE, 12, gpioModePushPull, 0);
+
+        lcd_init();
+
+        I2CDRV_Init(&i2cInit);
+
+        err = alti_init();
+
+        // Select CC channel parameters
+        TIMER_InitCC_TypeDef timerCCInit =
+                {
+                        .eventCtrl  = timerEventEveryEdge,
+                        .edge       = timerEdgeBoth,
+                        .prsSel     = timerPRSSELCh1,
+                        .cufoa      = timerOutputActionNone,
+                        .cofoa      = timerOutputActionNone,
+                        .cmoa       = timerOutputActionToggle,
+                        .mode       = timerCCModePWM,
+                        .filter     = false,
+                        .prsInput   = false,
+                        .coist      = false,
+                        .outInvert  = false,
+                };
+
+        // Configure CC channel 1
+        TIMER_InitCC(TIMER1, 1, &timerCCInit);
+        TIMER_InitCC(TIMER1, 2, &timerCCInit);
+
+        // Route CC1 to location 1 (PE11) and enable pin
+        TIMER1->ROUTE |= (TIMER_ROUTE_CC1PEN | TIMER_ROUTE_LOCATION_LOC1);
+
+        // Route CC2 to location 1 (PE12) and enable pin
+        TIMER1->ROUTE |= (TIMER_ROUTE_CC2PEN | TIMER_ROUTE_LOCATION_LOC1);
+
+        // Set Top Value
+        TIMER_TopSet(TIMER1, CMU_ClockFreqGet(cmuClock_HFPER)/PWM_FREQ);
+
+        // Set compare value starting at 0 - it will be incremented in the interrupt handler
+        TIMER_CompareBufSet(TIMER1, 1, 0);
+        TIMER_CompareBufSet(TIMER1, 2, 0);
+
+        // Select timer parameters
+        TIMER_Init_TypeDef timerInit =
+                {
+                        .enable     = true,
+                        .debugRun   = true,
+                        .prescale   = timerPrescale64,
+                        .clkSel     = timerClkSelHFPerClk,
+                        .fallAction = timerInputActionNone,
+                        .riseAction = timerInputActionNone,
+                        .mode       = timerModeUp,
+                        .dmaClrAct  = false,
+                        .quadModeX4 = false,
+                        .oneShot    = false,
+                        .sync       = false,
+                };
+
+        // Enable overflow interrupt
+        TIMER_IntEnable(TIMER1, TIMER_IF_OF);
+
+        // Enable TIMER1 interrupt vector in NVIC
+        NVIC_EnableIRQ(TIMER1_IRQn);
+
+        // Configure timer
+        TIMER_Init(TIMER1, &timerInit);
+
+
+        //GPIO_PinOutSet(gpioPortE, 11);
+        //GPIO_PinOutSet(gpioPortE, 12);
+
+        //box(0, 0, 128, 128, 1);
+
+        while(1)
+        {
+
+                err = light_sensor_get_lux(&lux);
+                sprintf(str, "light: %3.3f lux", lux);
+                text(&font_helv11, 5, 10, str);
+
+                err = alti_get_temp_pressure(&temp, &pressure, true);
+                sprintf(str, "temp: %f C", temp);
+                text(&font_helv11, 5, 30, str);
+                sprintf(str, "pressure: %f mbar", pressure);
+                text(&font_helv11, 5, 40, str);
+
+                err = alti_mbar2altitude(pressure, &altitude);
+                sprintf(str, "altitude: %f m", altitude);
+                text(&font_helv11, 5, 50, str);
+
+                sprintf(str, "clock: %d",CMU_ClockFreqGet(cmuClock_HFPER));
+                text(&font_helv11, 5, 60, str);
+
+                //lcd_update();
+                for(x=0; x<128; x++)
+                {
+                        for(y=0; y<128; y++)
+                        {
+                                lcd_toggle_pixel(x, y);
+                        }
+                }
+                lcd_update();
+                Delay(1000);
+                box(0, 0, 128, 128, 0);
+                //lcd_clear();
+        }
+
+
+
+
+}