Basic information

Component	Description
Processor	ATMega16U2
LED	24x7 matrix

Clone the Ravello Repository

Find it at https://github.com/komar007/ravello_firmware

Download AtMel Flip https://www.microchip.com/DevelopmentTools/ProductDetails/PartNO/FLIP

Download the C Compiler

https://blog.zakkemble.net/avr-gcc-builds/

Run Make

cd C:\Dropbox\Projects\Personal\TechKeys\src\ravello_firmware

c:\code\portable\Winavr\bin\make.exe

I got that error on line 74, so I checked and with some search I found this: http://fab.cba.mit.edu/classes/863.14/people/andrew_mao/week11/

Apparently "clock_div_1" is not defined in avr/power.h for Atmega16u2, so for make to work, and still disable the clock prescaler you need to comment line 74 and add this code:

CLKPR = (1 << CLKPCE); CLKPR = (0 << CLKPS3) | (0 << CLKPS2) | (0 << CLKPS1) | (0 << CLKPS0);

That works!

Thx for hiduino guys!

Check /bin folder:

Output File	Purpose
ukbdc_techkeys2-0.1.elf
ukbdc_techkeys2-0.1.hex
ukbdc_techkeys2-0.1_ee.hex

Source Code

Line 60-65

uint8_t EEMEM ee_strings[4][MACRO_MAX_LEN+1] = {
	"Hello, World!",
	"\x05lhttp://techkeys.us\x0c",
	"\x05lhttp://fb.com/techkeysus\x0c",
	"\x05lmailto:info@techkeys.us\x0c"
};

Install the Device in Windows

Short the pins on the device

1. Go to Device Manager
2. Right click Unknown Device
3. Choose Browse
4. Choose c:\program files (x86)\atmel\Flip 3.4.7\usb

AtMega16U2

If this works you should see "Windows Has Successfully updated your drivers"

Projects

Change the bitmap logo that scrolls in the screen

Run the existing bash script (in Windows)

Get a linux distribution to do it for me

Why not enable Bash in Windows 10 while I'm at it?

1. Enable the Windows Subsystem for Linux (WSL)

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

2. Make sure it works

 Get-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

Check that output:

FeatureName      : Microsoft-Windows-Subsystem-Linux
DisplayName      : Windows Subsystem for Linux
Description      : Provides services and environments for running native user-mode Linux shells and tools on Windows.
RestartRequired  : Possible
State            : Enabled
CustomProperties :
                   ServerComponent\Description : Provides services and environments for running native user-mode Linux shells and tools on Windows.
                   ServerComponent\DisplayName : Windows Subsystem for Linux
                   ServerComponent\Id : 1033
                   ServerComponent\Type : Feature
                   ServerComponent\UniqueName : Microsoft-Windows-Subsystem-Linux
                   ServerComponent\Deploys\Update\Name : Microsoft-Windows-Subsystem-Linux

2. Pick a distribution? Open The Microsoft Store

I picked Ubuntu

Now run it. Turn off that beep. Change the Dark Blue

Install ImageMagick:

sudo apt-get update

sudo apt-get install imagemagick

Make sure line endings work sudo apt-get install dos2unix

dos2unix

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

dfu-programmer atmega32u4 erase dfu-programmer atmega32u4 flash --eeprom eeprom_reset.hex

dfu-programmer atmega16u2 erase --force dfu-programmer atmega16u2 flash ukbdc_techkeys2-0.1.hex dfu-programmer atmega16u2 flash --eeprom ukbdc_techkeys2-0.1_ee.hex --force

dfu-programmer atmega16u2 reset

dfu-programmer atmega16u2 flash --eeprom ukbdc_techkeys2-0.1_ee.hex --force Nellie