Flashing hex Files

Step 1: Safely disconnect from power

Unless you are experienced, disconnect the Tri-ger module from your Eurorack power rails before flashing.

Download

Choose a release from the releases page. Each release will have an "Assets" section. Download the .hex to your computer.

Flash via avrdude

Make sure you have avrdude installed. The following will depend on what kind of programmer you own. usbtiny is just an example.

avrdude \
  -p m328 \
  -c usbtiny \
  -U flash:w:"tri-plus-ger.hex":i

Restoring Factory Firmware

To restore your Tri-ger to its original form

download the .hex files and restore shell script from the v0.0 release.
Navigate to the folder you downloaded files in terminal cd ~/Downloads
Modify the -c flags to match the USB to ICSP programmer you are using.
Give the script executable permission via chmod 744 write-firmware.sh)
Run ./write-firmware.sh

Example of avrdude list

You can run avrdude -c ? for an up to date list of compatible programmers.

Valid programmers are:
  2232HIO          = FT2232H based generic programmer
  4232h            = FT4232H based generic programmer
  arduino          = Arduino
  arduino-ft232r   = Arduino: FT232R connected to ISP
  atmelice         = Atmel-ICE (ARM/AVR) in JTAG mode
  atmelice_dw      = Atmel-ICE (ARM/AVR) in debugWIRE mode
  atmelice_isp     = Atmel-ICE (ARM/AVR) in ISP mode
  atmelice_pdi     = Atmel-ICE (ARM/AVR) in PDI mode
  avr109           = Atmel AppNote AVR109 Boot Loader
  avr910           = Atmel Low Cost Serial Programmer
  avr911           = Atmel AppNote AVR911 AVROSP
  avrftdi          = FT2232D based generic programmer
  avrisp           = Atmel AVR ISP
  avrisp2          = Atmel AVR ISP mkII
  avrispmkII       = Atmel AVR ISP mkII
  avrispv2         = Atmel AVR ISP V2
  buspirate        = The Bus Pirate
  buspirate_bb     = The Bus Pirate (bitbang interface, supports TPI)
  butterfly        = Atmel Butterfly Development Board
  butterfly_mk     = Mikrokopter.de Butterfly
  bwmega           = BitWizard ftdi_atmega builtin programmer
  C232HM           = FT232H based module from FTDI and Glyn.com.au
  c2n232i          = serial port banging, reset=dtr sck=!rts mosi=!txd miso=!cts
  dasa             = serial port banging, reset=rts sck=dtr mosi=txd miso=cts
  dasa3            = serial port banging, reset=!dtr sck=rts mosi=txd miso=cts
  diecimila        = alias for arduino-ft232r
  dragon_dw        = Atmel AVR Dragon in debugWire mode
  dragon_hvsp      = Atmel AVR Dragon in HVSP mode
  dragon_isp       = Atmel AVR Dragon in ISP mode
  dragon_jtag      = Atmel AVR Dragon in JTAG mode
  dragon_pdi       = Atmel AVR Dragon in PDI mode
  dragon_pp        = Atmel AVR Dragon in PP mode
  flip1            = FLIP USB DFU protocol version 1 (doc7618)
  flip2            = FLIP USB DFU protocol version 2 (AVR4023)
  ft232r           = FT232R Synchronous BitBang
  ft245r           = FT245R Synchronous BitBang
  jtag1            = Atmel JTAG ICE (mkI)
  jtag1slow        = Atmel JTAG ICE (mkI)
  jtag2            = Atmel JTAG ICE mkII
  jtag2avr32       = Atmel JTAG ICE mkII im AVR32 mode
  jtag2dw          = Atmel JTAG ICE mkII in debugWire mode
  jtag2fast        = Atmel JTAG ICE mkII
  jtag2isp         = Atmel JTAG ICE mkII in ISP mode
  jtag2pdi         = Atmel JTAG ICE mkII PDI mode
  jtag2slow        = Atmel JTAG ICE mkII
  jtag3            = Atmel AVR JTAGICE3 in JTAG mode
  jtag3dw          = Atmel AVR JTAGICE3 in debugWIRE mode
  jtag3isp         = Atmel AVR JTAGICE3 in ISP mode
  jtag3pdi         = Atmel AVR JTAGICE3 in PDI mode
  jtagkey          = Amontec JTAGKey, JTAGKey-Tiny and JTAGKey2
  jtagmkI          = Atmel JTAG ICE (mkI)
  jtagmkII         = Atmel JTAG ICE mkII
  jtagmkII_avr32   = Atmel JTAG ICE mkII im AVR32 mode
  lm3s811          = Luminary Micro LM3S811 Eval Board (Rev. A)
  mib510           = Crossbow MIB510 programming board
  mkbutterfly      = Mikrokopter.de Butterfly
  nibobee          = NIBObee
  o-link           = O-Link, OpenJTAG from www.100ask.net
  openmoko         = Openmoko debug board (v3)
  pavr             = Jason Kyle's pAVR Serial Programmer
  pickit2          = MicroChip's PICkit2 Programmer
  ponyser          = design ponyprog serial, reset=!txd sck=rts mosi=dtr miso=cts
  siprog           = Lancos SI-Prog <http://www.lancos.com/siprogsch.html>
  stk500           = Atmel STK500
  stk500hvsp       = Atmel STK500 V2 in high-voltage serial programming mode
  stk500pp         = Atmel STK500 V2 in parallel programming mode
  stk500v1         = Atmel STK500 Version 1.x firmware
  stk500v2         = Atmel STK500 Version 2.x firmware
  stk600           = Atmel STK600
  stk600hvsp       = Atmel STK600 in high-voltage serial programming mode
  stk600pp         = Atmel STK600 in parallel programming mode
  ttl232r          = FTDI TTL232R-5V with ICSP adapter
  tumpa            = TIAO USB Multi-Protocol Adapter
  UM232H           = FT232H based module from FTDI and Glyn.com.au
  uncompatino      = uncompatino with all pairs of pins shorted
  usbasp           = USBasp, http://www.fischl.de/usbasp/
  usbasp-clone     = Any usbasp clone with correct VID/PID
  usbtiny          = USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/
  wiring           = Wiring
  xplainedmini     = Atmel AVR XplainedMini in ISP mode
  xplainedmini_dw  = Atmel AVR XplainedMini in debugWIRE mode
  xplainedpro      = Atmel AVR XplainedPro in JTAG mode

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