I have Chinese copy of arduino which uses ATmega16u2 (at least that's what is written on the chip itself). When connected, it is visible in system information under USB section:
Communication Device:
Product ID: 0x0043
Vendor ID: 0x2341
Version: 0.01
Serial Number: 75237333636351600270
Speed: Up to 12 Mb/sec
Manufacturer: Arduino (www.arduino.cc)
Location ID: 0x1a140000 / 6
Current Available (mA): 1000
Current Required (mA): 100
Extra Operating Current (mA): 0
Built-In: Yes
But it doesn't show up in arduino program ports.
I've searched a lot, and it seems that people mostly had problems with arduinos on CH340 chips. I also have one such arduino, but it works properly after installing signed drivers as described here.
Are there any solutions for atmega 16u2 chips?
My system:
- OS X El Capitan 10.11.2 (15C50) (hackintosh if it changes anything).
- Arduino Uno R3 (chinese copy)
- Arduino soft version 1.6.7
Additional info: I've tried connecting Arduino Mega 2560 with Atmega16u2 chip and it also doesn't work
Info I've got using Nick's awesome program:
Atmega chip detector.
Written by Nick Gammon.
Version 1.17
Compiled on Jan 8 2016 at 21:35:08 with Arduino IDE 10607.
Attempting to enter ICSP programming mode ...
Entered programming mode OK.
Signature = 0x1E 0x94 0x89
Processor = ATmega16U2
Flash memory size = 16384 bytes.
LFuse = 0xFF
HFuse = 0xD9
EFuse = 0xF4
Lock byte = 0xFF
Clock calibration = 0x56
Bootloader in use: No
EEPROM preserved through erase: No
Watchdog timer always on: No
Bootloader is 4096 bytes starting at 3000
Bootloader:
3000: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
3010: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
3020: 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
...
MD5 sum of bootloader = 0x6A 0xE5 0x9E 0x64 0x85 0x03 0x77 0xEE 0x54 0x70 0xC8 0x54 0x76 0x15 0x51 0xEA
No bootloader (all 0xFF)
First 256 bytes of program memory:
0: 0x90 0xC0 0x00 0x00 0xA9 0xC0 0x00 0x00 0xA7 0xC0 0x00 0x00 0xA5 0xC0 0x00 0x00
10: 0xA3 0xC0 0x00 0x00 0xA1 0xC0 0x00 0x00 0x9F 0xC0 0x00 0x00 0x9D 0xC0 0x00 0x00
20: 0x9B 0xC0 0x00 0x00 0x99 0xC0 0x00 0x00 0x97 0xC0 0x00 0x00 0x48 0xC4 0x00 0x00
30: 0x0C 0xC4 0x00 0x00 0x91 0xC0 0x00 0x00 0x8F 0xC0 0x00 0x00 0x8D 0xC0 0x00 0x00
40: 0x8B 0xC0 0x00 0x00 0x89 0xC0 0x00 0x00 0x87 0xC0 0x00 0x00 0x85 0xC0 0x00 0x00
50: 0x83 0xC0 0x00 0x00 0x81 0xC0 0x00 0x00 0x7F 0xC0 0x00 0x00 0x02 0xC1 0x00 0x00
60: 0x7B 0xC0 0x00 0x00 0x79 0xC0 0x00 0x00 0x77 0xC0 0x00 0x00 0x75 0xC0 0x00 0x00
70: 0x73 0xC0 0x00 0x00 0x71 0xC0 0x00 0x00 0x6F 0xC0 0x00 0x00 0x6D 0xC0 0x00 0x00
80: 0x6B 0xC0 0x00 0x00 0x69 0xC0 0x00 0x00 0x67 0xC0 0x00 0x00 0x65 0xC0 0x00 0x00
90: 0x63 0xC0 0x00 0x00 0x61 0xC0 0x00 0x00 0x12 0x01 0x10 0x01 0x02 0x00 0x00 0x08
A0: 0x41 0x23 0x43 0x00 0x01 0x00 0x01 0x02 0xDC 0x01 0x09 0x02 0x3E 0x00 0x02 0x01
B0: 0x00 0xC0 0x32 0x09 0x04 0x00 0x00 0x01 0x02 0x02 0x01 0x00 0x05 0x24 0x00 0x01
C0: 0x10 0x04 0x24 0x02 0x06 0x05 0x24 0x06 0x00 0x01 0x07 0x05 0x82 0x03 0x08 0x00
D0: 0xFF 0x09 0x04 0x01 0x00 0x02 0x0A 0x00 0x00 0x00 0x07 0x05 0x04 0x02 0x40 0x00
E0: 0x01 0x07 0x05 0x83 0x02 0x40 0x00 0x01 0x04 0x03 0x09 0x04 0x32 0x03 0x41 0x00
F0: 0x72 0x00 0x64 0x00 0x75 0x00 0x69 0x00 0x6E 0x00 0x6F 0x00 0x20 0x00 0x28 0x00
Programming mode off.
Fuses info:
Atmega fuse calculator.
Written by Nick Gammon.
Version 1.10
Compiled on Jan 8 2016 at 22:19:34 with Arduino IDE 10607.
Attempting to enter programming mode ...
Entered programming mode OK.
Signature = 0x1E 0x94 0x89
Processor = ATmega16U2
Flash memory size = 16384
LFuse = 0xFF
HFuse = 0xD9
EFuse = 0xF4
Lock byte = 0xFF
Clock calibration = 0x56
Hardare Boot Enable..................... [X]
Debug Wire Enable....................... [ ]
External Reset Disable.................. [ ]
Enable Serial (ICSP) Programming........ [X]
Watchdog Timer Always On................ [ ]
Preserve EEPROM through chip erase...... [ ]
Boot into bootloader.................... [ ]
Divide clock by 8....................... [ ]
Clock output............................ [ ]
Bootloader size: 4096 bytes.
Start-up time: SUT0: [ ] SUT1: [ ] (see datasheet)
Clock source: low-power crystal.
Brownout detection at: 3.0V.
ls tty.* tty.Bluetooth-Incoming-Port tty.serial1
– Jaroslav Jan 2 '16 at 14:38