firmware/variants/meshlink_eink/platformio.ini

; The very slick RAK wireless RAK 4631 / 4630 board - Unified firmware for 5005/19003, with or without OLED RAK 1921
[env:meshlink_eink]
extends = nrf52840_base
board = meshlink
;board_check = true
build_flags = ${nrf52840_base.build_flags} -I variants/meshlink_eink -D MESHLINK
  -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m4/fpv4-sp-d16-hard"
  -D GPS_POWER_TOGGLE ; comment this line to disable triple press function on the user button to turn off gps entirely.
  -D EINK_DISPLAY_MODEL=GxEPD2_213_B74
  -D EINK_WIDTH=250
  -D EINK_HEIGHT=122
  -D USE_EINK_DYNAMICDISPLAY            ; Enable Dynamic EInk
  -D EINK_LIMIT_FASTREFRESH=5           ; How many consecutive fast-refreshes are permitted
  -D EINK_LIMIT_RATE_BACKGROUND_SEC=30  ; Minimum interval between BACKGROUND updates
  -D EINK_LIMIT_RATE_RESPONSIVE_SEC=1   ; Minimum interval between RESPONSIVE updates
  -D EINK_LIMIT_GHOSTING_PX=2000        ; (Optional) How much image ghosting is tolerated
  -D EINK_BACKGROUND_USES_FAST         ; (Optional) Use FAST refresh for both BACKGROUND and RESPONSIVE, until a limit is reached.
  -D EINK_HASQUIRK_VICIOUSFASTREFRESH   ; Identify that pixels drawn by fast-refresh are harder to clear


build_src_filter = ${nrf52_base.build_src_filter} +<../variants/meshlink_eink>
lib_deps = 
  ${nrf52840_base.lib_deps}
  https://github.com/meshtastic/GxEPD2#55f618961db45a23eff0233546430f1e5a80f63a
  melopero/Melopero RV3028@^1.1.0
  rakwireless/RAKwireless NCP5623 RGB LED library@^1.0.2
  beegee-tokyo/RAKwireless RAK12034@^1.0.0
debug_tool = jlink



; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
; Note: as of 6/2013 the serial/bootloader based programming takes approximately 30 seconds
;upload_protocol = jlink

; Allows programming and debug via the RAK NanoDAP as the default debugger tool for the RAK4631 (it is only $10!)
; programming time is about the same as the bootloader version.
; For information on this see the meshtastic developers documentation for "Development on the NRF52"
[env:meshlink_dbg]
extends = env:meshlink
board_level = extra

; if the builtin version of openocd has a buggy version of semihosting, so use the external version
; platform_packages = platformio/tool-openocd@^3.1200.0

build_flags =
  ${env:meshlink.build_flags}
  -D USE_SEMIHOSTING

lib_deps =
  ${env:meshlink.lib_deps}
  https://github.com/geeksville/Armduino-Semihosting.git#35b538fdf208c3530c1434cd099a08e486672ee4

; NOTE: the pyocd support for semihosting is buggy.  So I switched to using the builtin platformio support for the stlink adapter which worked much better.
; However the built in openocd version in platformio has buggy support for TCP to semihosting. 
;
; So I'm now trying the external openocd - but the openocd scripts for nrf52.cfg assume you are using a DAP adapter not an STLINK adapter.
; In theory I could change those scripts.  But for now I'm trying going back to a DAP adapter but with the external openocd.

upload_protocol = stlink
; eventually use platformio/tool-pyocd@^2.3600.0 instad
;upload_protocol = custom
;upload_command = pyocd flash -t nrf52840 $UPLOADERFLAGS $SOURCE

; We want the initial breakpoint at setup() instead of main().  Also we want to enable semihosting at that point so instead of
; debug_init_break = tbreak setup
; we just turn off the platformio tbreak and do it in .gdbinit (where we have more flexibility for scripting)
; also we use a permanent breakpoint so it gets reused each time we restart the debugging session?
debug_init_break = tbreak setup

; Note: add "monitor arm semihosting_redirect tcp 4444 all" if you want the stdout from the device to go to that port number instead
; (for use by meshtastic command line)
;  monitor arm semihosting disable
;  monitor debug_level 3
;
; IMPORTANT: fileio must be disabled before using port 5555 - openocd ver 0.12 has a bug where if enabled it never properly parses the special :tt name
; for stdio access.
;   monitor arm semihosting_redirect tcp 5555 stdio

; Also note: it is _impossible_ to do non blocking reads on the semihost console port (an oversight when ARM specified the semihost API).
; So we'll neve be able to general purpose bi-directional communication with the device over semihosting.
debug_extra_cmds =
  echo Running .gdbinit script
  monitor arm semihosting enable
  monitor arm semihosting_fileio enable
  monitor arm semihosting_redirect disable
  commands 1
  echo Breakpoint at setup() has semihosting console, connect to it with "telnet localhost 5555"
  set wantSemihost = true
  set useSoftDevice = false
  end


; Only reprogram the board if the code has changed
debug_load_mode = modified
;debug_load_mode = manual
debug_tool = stlink
;debug_tool = custom
; debug_server =
;  openocd
;  -f
;  /usr/local/share/openocd/scripts/interface/stlink.cfg
;  -f
;  /usr/local/share/openocd/scripts/target/nrf52.cfg
; $PLATFORMIO_CORE_DIR/packages/tool-openocd/openocd/scripts/interface/cmsis-dap.cfg

; Allows programming and debug via the RAK NanoDAP as the default debugger tool for the RAK4631 (it is only $10!)
; programming time is about the same as the bootloader version.
; For information on this see the meshtastic developers documentation for "Development on the NRF52"
; We manually pass in the elf file so that pyocd can reverse engineer FreeRTOS data (running threads, etc...)
;debug_server =
;  pyocd
;  gdbserver
;  -j
;  ${platformio.workspace_dir}/..
;  -t
;  nrf52840
;  --semihosting
;  --elf
;  ${platformio.build_dir}/${this.__env__}/firmware.elf

; If you want to debug the semihosting support you can turn on extra logging in pyocd with
;   -L
;   pyocd.debug.semihost.trace=debug

; The following is not needed because it automatically tries do this
;debug_server_ready_pattern = -.*GDB server started on port \d+.*
;debug_port = localhost:3333