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Thread: VisualTeensy, TeensyDebug and Audio

  1. #1
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    VisualTeensy, TeensyDebug and Audio

    I'm struggling to get TeensyDebug to work with the Audio library, from within a VisualTeensy VS Code project.

    If I compile the exact same code inside Teensyduino it does work as expected.

    The code:
    Code:
    #include <Audio.h>
    #include <Wire.h>
    #include <SD.h>
    #include <SPI.h>
    #include <SerialFlash.h>
    #include <TeensyDebug.h>
    
    AudioSynthWaveform    waveform1;
    AudioOutputI2S        i2s1;
    AudioConnection       patchCord1(waveform1, 0, i2s1, 0);
    AudioConnection       patchCord2(waveform1, 0, i2s1, 1);
    AudioControlSGTL5000  sgtl5000_1;
    
    void setup() {
      pinMode(LED_BUILTIN, OUTPUT);
      digitalWrite(LED_BUILTIN, HIGH);
      
      AudioMemory(10);
      sgtl5000_1.enable();
      sgtl5000_1.volume(0.3);
      waveform1.begin(WAVEFORM_SINE);
      waveform1.frequency(440);
      waveform1.amplitude(0.2);
    }
    
    void loop() {
    }
    Expected outcome: The built-in LED is on, while a sine audio tone is played. This is what happens when compiling with Teensyduino.

    But when I compile my VS Code project (generated with VisualTeensy) the LED flashes rapidly and there is no audio tone. Also - there are no serial ports detected.
    I suspect that the Teensy is resetting continuously?

    Any help would be appreciated.

    My setup:
    Windows 10
    Arduino 1.8.13
    Teensyduino 1.53
    h/w: Teensy 4.1 & Audio daughter-board

  2. #2
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    can you show your makefile?

  3. #3
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    Sure, see the end of this post. It is then the makefile as generated by VisualTeensy.

    I compared the commands that Teensyduino and VS Code used to compile my .cpp files - as far as I could see they used identical options.
    Not sure about linking etc.

    Code:
    #******************************************************************************
    # Generated by VisualTeensy (https://github.com/luni64/VisualTeensy)
    #
    # Board              Teensy 4.1
    # USB Type           Dual Serial
    # CPU Speed          600 MHz
    # Optimize           Debug
    # Keyboard Layout    US English
    #
    # 2021/08/01 12:18
    #******************************************************************************
    SHELL            := cmd.exe
    export SHELL
    
    TARGET_NAME      := MyApp
    BOARD_ID         := TEENSY41
    
    MCU              := imxrt1062
    
    LIBS_SHARED_BASE := C:\Users\tviljoen\Documents\Arduino\libraries
    LIBS_SHARED      := 
    
    LIBS_LOCAL_BASE  := lib
    LIBS_LOCAL       := Audio SD SerialFlash SPI Wire TeensyDebug
    
    CORE_BASE        := C:\Technical\Teensy\arduino-1.8.13_1.53\hardware\teensy\avr\cores\teensy4
    GCC_BASE         := C:\Technical\Teensy\arduino-1.8.13_1.53\hardware\tools\arm\bin
    UPL_PJRC_B       := C:\Technical\Teensy\arduino-1.8.13_1.53\hardware\tools
    UPL_TYCMD_B      := C:\Technical\Teensy\arduino-1.8.13_1.53\hardware\tools
    
    #******************************************************************************
    # Flags and Defines
    #******************************************************************************
    FLAGS_CPU   := -mthumb -mcpu=cortex-m7 -mfloat-abi=hard -mfpu=fpv5-d16
    FLAGS_OPT   := -Og
    FLAGS_COM   := -g -Wall -ffunction-sections -fdata-sections -nostdlib -MMD
    FLAGS_LSP   := 
    
    FLAGS_CPP   := -std=gnu++14 -fno-exceptions -fpermissive -fno-rtti -fno-threadsafe-statics -felide-constructors -Wno-error=narrowing
    FLAGS_C     := 
    FLAGS_S     := -x assembler-with-cpp
    FLAGS_LD    := -Wl,--print-memory-usage,--gc-sections,--relax,--defsym=__rtc_localtime=$(shell powershell [int](Get-Date -UFormat +%s)[0]) -T$(CORE_BASE)/imxrt1062_t41.ld
    
    LIBS        := -larm_cortexM7lfsp_math -lm -lstdc++
    
    DEFINES     := -D__IMXRT1062__ -DTEENSYDUINO=153 -DARDUINO_TEENSY41 -DARDUINO=10813
    DEFINES     += -DF_CPU=600000000 -DUSB_DUAL_SERIAL -DLAYOUT_US_ENGLISH
    
    CPP_FLAGS   := $(FLAGS_CPU) $(FLAGS_OPT) $(FLAGS_COM) $(DEFINES) $(FLAGS_CPP)
    C_FLAGS     := $(FLAGS_CPU) $(FLAGS_OPT) $(FLAGS_COM) $(DEFINES) $(FLAGS_C)
    S_FLAGS     := $(FLAGS_CPU) $(FLAGS_OPT) $(FLAGS_COM) $(DEFINES) $(FLAGS_S)
    LD_FLAGS    := $(FLAGS_CPU) $(FLAGS_OPT) $(FLAGS_LSP) $(FLAGS_LD)
    AR_FLAGS    := rcs
    NM_FLAGS    := --numeric-sort --defined-only --demangle --print-size
    
    #******************************************************************************
    # Colors
    #******************************************************************************
    COL_CORE    := 
    COL_LIB     := 
    COL_SRC     := 
    COL_LINK    := 
    COL_ERR     := 
    COL_OK      := 
    COL_RESET   := 
    
    #******************************************************************************
    # Folders and Files
    #******************************************************************************
    USR_SRC         := src
    LIB_SRC         := lib
    CORE_SRC        := $(CORE_BASE)
    
    BIN             := .vsteensy/build
    USR_BIN         := $(BIN)/src
    CORE_BIN        := $(BIN)/core
    LIB_BIN         := $(BIN)/lib
    CORE_LIB        := $(BIN)/core.a
    TARGET_HEX      := $(BIN)/$(TARGET_NAME).hex
    TARGET_ELF      := $(BIN)/$(TARGET_NAME).elf
    TARGET_LST      := $(BIN)/$(TARGET_NAME).lst
    TARGET_SYM      := $(BIN)/$(TARGET_NAME).sym
    
    #******************************************************************************
    # BINARIES
    #******************************************************************************
    CC              := $(GCC_BASE)/arm-none-eabi-gcc
    CXX             := $(GCC_BASE)/arm-none-eabi-g++
    AR              := $(GCC_BASE)/arm-none-eabi-gcc-ar
    NM              := $(GCC_BASE)/arm-none-eabi-gcc-nm
    SIZE            := $(GCC_BASE)/arm-none-eabi-size
    OBJDUMP         := $(GCC_BASE)/arm-none-eabi-objdump
    OBJCOPY         := $(GCC_BASE)/arm-none-eabi-objcopy
    UPL_PJRC        := "$(UPL_PJRC_B)/teensy_post_compile" -test -file=$(TARGET_NAME) -path=$(BIN) -tools="$(UPL_PJRC_B)" -board=$(BOARD_ID) -reboot
    UPL_TYCMD       := $(UPL_TYCMD_B)/tyCommanderC upload $(TARGET_HEX) --autostart --wait --multi
    UPL_CLICMD      := $(UPL_CLICMD_B)/teensy_loader_cli -mmcu=$(MCU) -v $(TARGET_HEX)
    UPL_JLINK       := $(UPL_JLINK_B)/jlink -commanderscript .vsteensy/flash.jlink
    
    #******************************************************************************
    # Source and Include Files
    #******************************************************************************
    # Recursively create list of source and object files in USR_SRC and CORE_SRC
    # and corresponding subdirectories.
    # The function rwildcard is taken from http://stackoverflow.com/a/12959694)
    
    rwildcard =$(wildcard $1$2) $(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2))
    
    #User Sources -----------------------------------------------------------------
    USR_C_FILES     := $(call rwildcard,$(USR_SRC)/,*.c)
    USR_CPP_FILES   := $(call rwildcard,$(USR_SRC)/,*.cpp)
    USR_S_FILES     := $(call rwildcard,$(USR_SRC)/,*.S)
    USR_OBJ         := $(USR_S_FILES:$(USR_SRC)/%.S=$(USR_BIN)/%.o) $(USR_C_FILES:$(USR_SRC)/%.c=$(USR_BIN)/%.o) $(USR_CPP_FILES:$(USR_SRC)/%.cpp=$(USR_BIN)/%.o)
    
    # Core library sources --------------------------------------------------------
    CORE_CPP_FILES  := $(call rwildcard,$(CORE_SRC)/,*.cpp)
    CORE_C_FILES    := $(call rwildcard,$(CORE_SRC)/,*.c)
    CORE_S_FILES    := $(call rwildcard,$(CORE_SRC)/,*.S)
    CORE_OBJ        := $(CORE_S_FILES:$(CORE_SRC)/%.S=$(CORE_BIN)/%.o) $(CORE_C_FILES:$(CORE_SRC)/%.c=$(CORE_BIN)/%.o) $(CORE_CPP_FILES:$(CORE_SRC)/%.cpp=$(CORE_BIN)/%.o)
    
    # User library sources (see https://github.com/arduino/arduino/wiki/arduino-ide-1.5:-library-specification)
    LIB_DIRS_SHARED := $(foreach d, $(LIBS_SHARED), $(LIBS_SHARED_BASE)/$d/ $(LIBS_SHARED_BASE)/$d/utility/)      # base and /utility
    LIB_DIRS_SHARED += $(foreach d, $(LIBS_SHARED), $(LIBS_SHARED_BASE)/$d/src/ $(dir $(call rwildcard,$(LIBS_SHARED_BASE)/$d/src/,*/.)))                          # src and all subdirs of base
    
    LIB_DIRS_LOCAL  := $(foreach d, $(LIBS_LOCAL), $(LIBS_LOCAL_BASE)/$d/ $(LIBS_LOCAL_BASE)/$d/utility/ )        # base and /utility
    LIB_DIRS_LOCAL  += $(foreach d, $(LIBS_LOCAL), $(LIBS_LOCAL_BASE)/$d/src/ $(dir $(call rwildcard,$(LIBS_LOCAL_BASE)/$d/src/,*/.)))                          # src and all subdirs of base
    
    LIB_CPP_SHARED  := $(foreach d, $(LIB_DIRS_SHARED),$(call wildcard,$d*.cpp))
    LIB_C_SHARED    := $(foreach d, $(LIB_DIRS_SHARED),$(call wildcard,$d*.c))
    LIB_S_SHARED    := $(foreach d, $(LIB_DIRS_SHARED),$(call wildcard,$d*.S))
    
    LIB_CPP_LOCAL   := $(foreach d, $(LIB_DIRS_LOCAL),$(call wildcard,$d/*.cpp))
    LIB_C_LOCAL     := $(foreach d, $(LIB_DIRS_LOCAL),$(call wildcard,$d/*.c))
    LIB_S_LOCAL     := $(foreach d, $(LIB_DIRS_LOCAL),$(call wildcard,$d/*.S))
    
    LIB_OBJ         := $(LIB_CPP_SHARED:$(LIBS_SHARED_BASE)/%.cpp=$(LIB_BIN)/%.o)  $(LIB_CPP_LOCAL:$(LIBS_LOCAL_BASE)/%.cpp=$(LIB_BIN)/%.o)
    LIB_OBJ         += $(LIB_C_SHARED:$(LIBS_SHARED_BASE)/%.c=$(LIB_BIN)/%.o)  $(LIB_C_LOCAL:$(LIBS_LOCAL_BASE)/%.c=$(LIB_BIN)/%.o)
    LIB_OBJ         += $(LIB_S_SHARED:$(LIBS_SHARED_BASE)/%.S=$(LIB_BIN)/%.o)  $(LIB_S_LOCAL:$(LIBS_LOCAL_BASE)/%.S=$(LIB_BIN)/%.o)
    
    # Includes -------------------------------------------------------------
    INCLUDE         := -I./$(USR_SRC) -I$(CORE_SRC)
    INCLUDE         += $(foreach d, $(LIB_DIRS_SHARED), -I$d)
    INCLUDE         += $(foreach d, $(LIB_DIRS_LOCAL), -I$d)
    
    # Generate directories --------------------------------------------------------
    DIRECTORIES     :=  $(sort $(dir $(CORE_OBJ) $(USR_OBJ) $(LIB_OBJ)))
    generateDirs    := $(foreach d, $(DIRECTORIES), $(shell if not exist "$d" mkdir "$d"))
    
    #$(info dirs: $(DIRECTORIES))
    
    #******************************************************************************
    # Rules:
    #******************************************************************************
    
    .PHONY: directories all rebuild upload uploadTy uploadCLI clean cleanUser cleanCore
    
    all:  $(TARGET_LST) $(TARGET_SYM) $(TARGET_HEX)
    
    rebuild: cleanUser all
    
    clean: cleanUser cleanCore cleanLib
    	@echo $(COL_OK)cleaning done$(COL_RESET)
    
    upload: all
    	@$(UPL_PJRC)
    
    uploadTy: all
    	@$(UPL_TYCMD)
    
    uploadCLI: all
    	@$(UPL_CLICMD)
    
    uploadJLink: all
    	@$(UPL_JLINK)
    
    # Core library ----------------------------------------------------------------
    $(CORE_BIN)/%.o: $(CORE_SRC)/%.S
    	@echo $(COL_CORE)CORE [ASM] $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(S_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(CORE_BIN)/%.o: $(CORE_SRC)/%.c
    	@echo $(COL_CORE)CORE [CC]  $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(C_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(CORE_BIN)/%.o: $(CORE_SRC)/%.cpp
    	@echo $(COL_CORE)CORE [CPP] $(notdir $<) $(COL_ERR)
    	@"$(CXX)" $(CPP_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(CORE_LIB) : $(CORE_OBJ)
    	@echo $(COL_LINK)CORE [AR] $@ $(COL_ERR)
    	@$(AR) $(AR_FLAGS) $@ $^
    	@echo $(COL_OK)Teensy core built successfully &&echo.
    
    # Shared Libraries ------------------------------------------------------------
    $(LIB_BIN)/%.o: $(LIBS_SHARED_BASE)/%.S
    	@echo $(COL_LIB)LIB [ASM] $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(S_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(LIB_BIN)/%.o: $(LIBS_SHARED_BASE)/%.cpp
    	@echo $(COL_LIB)LIB [CPP] $(notdir $<) $(COL_ERR)
    	@"$(CXX)" $(CPP_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(LIB_BIN)/%.o: $(LIBS_SHARED_BASE)/%.c
    	@echo $(COL_LIB)LIB [CC]  $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(C_FLAGS) $(INCLUDE) -o $@ -c $<
    
    # Local Libraries -------------------------------------------------------------
    $(LIB_BIN)/%.o: $(LIBS_LOCAL_BASE)/%.S
    	@echo $(COL_LIB)LIB [ASM] $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(S_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(LIB_BIN)/%.o: $(LIBS_LOCAL_BASE)/%.cpp
    	@echo $(COL_LIB)LIB [CPP] $(notdir $<) $(COL_ERR)
    	@"$(CXX)" $(CPP_FLAGS) $(INCLUDE) -o $@ -c $<
    
    $(LIB_BIN)/%.o: $(LIBS_LOCAL_BASE)/%.c
    	@echo $(COL_LIB)LIB [CC]  $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(C_FLAGS) $(INCLUDE) -o $@ -c $<
    
    # Handle user sources ---------------------------------------------------------
    $(USR_BIN)/%.o: $(USR_SRC)/%.S
    	@echo $(COL_SRC)USER [ASM] $< $(COL_ERR)
    	@"$(CC)" $(S_FLAGS) $(INCLUDE) -o "$@" -c $<
    
    $(USR_BIN)/%.o: $(USR_SRC)/%.c
    	@echo $(COL_SRC)USER [CC]  $(notdir $<) $(COL_ERR)
    	@"$(CC)" $(C_FLAGS) $(INCLUDE) -o "$@" -c $<
    
    $(USR_BIN)/%.o: $(USR_SRC)/%.cpp
    	@echo $(COL_SRC)USER [CPP] $(notdir $<) $(COL_ERR)
    	@"$(CXX)" $(CPP_FLAGS) $(INCLUDE) -o "$@" -c $<
    
    # Linking ---------------------------------------------------------------------
    $(TARGET_ELF): $(CORE_LIB) $(LIB_OBJ) $(USR_OBJ)
    	@echo $(COL_LINK)
    	@echo [LD]  $@ $(COL_ERR)
    	@$(CC) $(LD_FLAGS) -o "$@" $(USR_OBJ) $(LIB_OBJ) $(CORE_LIB) $(LIBS)
    	@echo $(COL_OK)User code built and linked to libraries &&echo.
    
    %.lst: %.elf
    	@echo [LST] $@
    	@$(OBJDUMP) -d -S --demangle --no-show-raw-insn "$<" > "$@"
    	@echo $(COL_OK)Sucessfully built project$(COL_RESET) &&echo.
    
    %.sym: %.elf
    	@echo [SYM] $@
    	@$(NM) $(NM_FLAGS) "$<" > "$@"
    
    %.hex: %.elf
    	@echo $(COL_LINK)[HEX] $@
    	@$(OBJCOPY) -O ihex -R.eeprom "$<" "$@"
    
    # Cleaning --------------------------------------------------------------------
    cleanUser:
    	@echo $(COL_LINK)Cleaning user binaries...$(COL_RESET)
    	@if exist $(USR_BIN) rd /s/q "$(USR_BIN)"
    	@if exist "$(TARGET_LST)" del $(subst /,\,$(TARGET_LST))
    
    cleanCore:
    	@echo $(COL_LINK)Cleaning core binaries...$(COL_RESET)
    	@if exist $(CORE_BIN) rd /s/q "$(CORE_BIN)"
    	@if exist $(CORE_LIB) del  $(subst /,\,$(CORE_LIB))
    
    cleanLib:
    	@echo $(COL_LINK)Cleaning user library binaries...$(COL_RESET)
    	@if exist $(LIB_BIN) rd /s/q "$(LIB_BIN)"
    
    # compiler generated dependency info ------------------------------------------
    -include $(CORE_OBJ:.o=.d)
    -include $(USR_OBJ:.o=.d)
    -include $(LIB_OBJ:.o=.d)

  4. #4
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    I had only a T4.0 with audio card available,
    but I only could get it working with #include "Arduino.h" inserted on top of sketch.
    (this is was Arduino IDE inserts also)
    I have no headphone with me, so cannot test if it is working properly.
    Seems not, no serial port, no LED on

    Edit,
    only way to get sketch working is to eliminate TeensyDebug from sketch AND makefile
    So there must be some issues

    Edit: adding -DGDB_DUAL_SERIAL to makefile did not help (as indicated in other thread)

    @TeeVil, if you got it working, please report also here
    Last edited by WMXZ; 08-02-2021 at 02:19 PM.

  5. #5
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    IIRC Teensydebug copies a Boards.txt.local to the Arduino folder. https://github.com/ftrias/TeensyDebu...ards.local.txt which is not parsed by VisualTeensy. This file sets the optimization level to -Og and adds -DGDB_DUAL_SERIAL as WMXZ already mentioned. Additionally it exchanges the loader by some gdbtool which I don't know. Might need some more tweaks in the makefile to make it work.

    I remember getting it to work once but it wasn't much help so I didn't work on the integration further.

  6. #6
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    I've re-installed everything, and now it doesn't even work on Teensyduino. So its probably not a VisualTeensy-specific issue?

    Has anybody been able to use TeensyDebug along with the Audio library, at all?
    If I try that the program just doesn't seem to start.

    I've simplified the example code even further. Trying to execute the following:
    Code:
    #include <Audio.h>
    #include <Wire.h>
    #include <SD.h>
    #include <SPI.h>
    #include <SerialFlash.h>
    
    #include <TeensyDebug.h>
    #pragma GCC optimize ("O0")
    
    void setup() {
      pinMode(LED_BUILTIN, OUTPUT);
      digitalWrite(LED_BUILTIN, HIGH);
    }
    
    void loop() {
    }
    with "USB type" = "Dual Serial" and "GDB" = "Use Dual Serial".
    If I try that the LED just never comes on, and there are no serial ports.

    I also now get the following warning:
    Code:
    .\libraries\TeensyDebug\src/TeensyDebug.h:91:0: warning: "O_CREAT" redefined
     #define O_CREAT         0x200
    
    .\hardware\tools\arm\arm-none-eabi\include\sys\_default_fcntl.h:38:0: note: this is the location of the previous definition
     #define O_CREAT  _FCREAT
    But it seems that _FCREAT is set to 0x200, so it is probably not a problem.

  7. #7
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    Sigh. Now I get the same problem even when removing ALL the #include's except TeensyDebug.

    I can swear it worked earlier. Maybe I forgot something in the re-install?

    Maybe its a sign to give up on the debugger, for me in any case.

  8. #8
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    If you use makefiles (as you do with VisualTeensy) you should include Arduino.h on top of the sketch
    (this is what is done with .ino files and Arduino IDE)
    My understanding is that TeensyDebug, changes basic functionality, so TeensyDebug may be not compatible or keeping up with TD development

    I must confess, I never used TeensyDebug, but was only curious.
    I also do not get any ports or led blinking if I include TeesyDebug.h

  9. #9
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    Sorry yes I did include Arduino.h when using VS Code. But now I'm back to Teensyduino, still get the same result.

    I definitely got the debugging to work (sort-of) before so I'm not sure what changed.

    Thanks for your feedback in any case - at least it proves the problem is repeatable. (Or we're both making the same mistakes )

  10. #10
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    I tried TeensyDebug on PlatformIO. All tests done with PlatformIO 5.1.1. Got the following results:
    1. Teensy Platform 4.13.0 (based on Teensyduino 1.54): Debugging does not work, program does not start. Same problem I had previously.
    2. Teensy Platform 4.12.0 (based on Teensyduino 1.53): Debugging works! (But I did very limited testing...must check if it works along with Audio lib)

    So yeah I suspect Teensyduino 1.54 and TeensyDebug does not like each other.

  11. #11
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    IIRC TeensyDebug exchanges the linker script. I assume that the TeensyDebug script is based on the one from 1.53 (or earlier). On the other hand TD 1.54 has a new linker script and probably relies on the new one.... @ftrias will know. Did you try to file an issue at his GitHub repo?

    EDIT: I was probably wrong (don't find a changed linker script in the repo...)

  12. #12
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    Quote Originally Posted by luni View Post
    IIRC TeensyDebug exchanges the linker script. I assume that the TeensyDebug script is based on the one from 1.53 (or earlier). On the other hand TD 1.54 has a new linker script and probably relies on the new one.... @ftrias will know. Did you try to file an issue at his GitHub repo?

    EDIT: I was probably wrong (don't find a changed linker script in the repo...)
    Funny the "EDIT" showed on hitting reply that wasn't there before ...

    Indeed in TSET using the Arduino Builder run from command line ... back when TeensyDebug was tested ... all that was done when 'Debug' was selected was adding this line to the batch file to start GDB with files already in the build:
    start "%tools%\GDB.cmd" "%arduino%\hardware\tools\arm\bin\arm-none-eabi-gdb.exe" "%temp1%\%sketchname%.elf"

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