Slayer Firmware Update - Steam Series

Slayer Firmware Update - Steam Series

 
Slayer .hex Firmware Installation Instructions
Revised 6/12/2023


Authorized Slayer technician's firmware update field guide.
Items Needed: 
  1. Firmware Programmer & Cables (Image Below)
  2. Atmel Studio 7 (Microchip Studio) installed on a Windows compatible computer.
    1. Please install and confirm Atmel Studio 7 (Microchip Studio) is functional before site visit.
  3. #2 Philips Head Screwdriver
Atmel Studio 7 (Microchip Studio) does not contain Slayer .hex firmware files. You must obtain the file from Slayer Support or Customer Service before preparing to update firmware. If you do not have the appropriate .hex file, please email support@slayerespresso.com.

Current firmware versions:
Steam LP: 1.22
Steam EP: 1.10
Steam X: 1.07 
Download Atmel Studio 7:

Download Atmel Studio 7 (Windows Compatible PC):
Please Visit: MicroChip Studios
  1. Select 'Download Microchip Studio'
    1. Select 'Microchip Studio for AVR and SAM Devices - Web Installer'
    2. Follow Installation Prompts
Collect Machine Information:

Deep Menu:
  1. From the barista dashboard, scroll to Switch Off.
  2. While on the OFF screen. Press and hold Group 1 encoder knob for 12 seconds. This enters into the deep menu.
  3. Take note of the information below.
Steam LP:
  1. Serial Number
  2. FlowmeterrateG
  3. Number of Groups
Steam EP:
  1. Serial Number
  2. Number of Groups
Steam X:
  1. Serial Number
  2. Number of Groups
Advanced Menu:
  1. Steam EP & LP:
    1. From the Barista Dashboard, press encoder knob twice to enter menu.
  2. Press and hold for Steam X
Steam LP:
  1. Time and Date
  2. Celsius or Fahrenheit
  3. Brew Temp Offset
  4. Flowmeter Calibration
  5. Brew Parameters
Steam EP:
  1. Time and Date
  2. Celsius or Fahrenheit
  3. Brew Temp Offset
  4. Brew Parameters (Button Pulses, Pre-wet)
 Steam X:
  1. Celsius or Fahrenheit
  2. Brew Temp Offset
  3. Max Pressure:  2Bar or 100 PSI. (Eltek is “2Bar”, Honeywell is “100 PSI”)
  4. Brew Parameters
Program Firmware:

Step 1:
  1. Power on machine using the main power switch and navigate to ‘Switch off’ screen.
  2. *Leave high voltage breaker switch OFF at this time.*
Step 2:
  1. Remove four (4) rear panel screens to gain access to Main Brain Slayer Steam, 30005-10080.
Step 3:
  1. Connect the AVR programmer to your PC's USB port: A red or blue light illuminates on the programmer.
  2. Attach the AVR programmer to the main board at CN15.


Step 4:
Program firmware.
  1. Open Atmel Studio 7
  2. Click Tools > Device Programming

  1. Select your TOOL as detected by computer.
    1. Atmel-ICE
    2. AVRISPMKII
  2. The DEVICE should register as: ATmega2560
    1. You may need to select the drop down menu and search for the correct DEVICE.
  3. Click APPLY.
  4. Click READ to identify the board.
  5. Target Voltage indicates power is being supplied and ready to continue programing.

  1. Select MEMORIES on the left column and browse for the .hex file under FLASH.
  2. Select PROGRAM.
  3. Green bar loading bar will commence.
  4. Wait for the program to load completely. 
    1. Verify Flash OK will appear at bottom of window once complete.


Power off machine and apply presets:
  1. Power off machine with main power switch.
  2. Press and hold the hot water button and Group 1 encoder knob simultaneously.
  3. Turn on power on while continuing to press the hot water button and Group 1 encoder knob until the words PRESET DONE appear on Group 1 display. This takes a few seconds.
Verify Firmware and Re-enter Settings:
  1. Power Cycle.
  2. Confirm new firmware version flashes on display during initial power up.
  3. Re-enter machine information from Collect Machine Information on Page 1.
  4. Set Autofill Delay to DISABLE
  5. *Updating firmware may cause machine to recognize incorrect number of groups. To set group number, proceed to Deep Menu from 'OFF' screen.*


 Questions or concerns? Please contact: support@slayerespresso.com

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