upditool

tool for flashing new Microchip MCU (mega0/AVR series).

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Hardware

Supports USB-SERIAL TTL adapter as programmer. Several types of USB to serial converter can be used, here connection schematics:

  PL2303HX UART
  CP2102/CP2109 UART
  CH340 UART
                                     Microchip UPDI device
      +---------+                   +--------------------+
      |  3.3/5V +-------------------+ Vcc                |
 +----|         |                   |                    |
 | U  |      RX +--------------+----+ UPDI               |
 | S  |         |              |    |                    |
 | B  |         |   +------+   |    |                    |
 +----|      TX +---|  2k2 |---+    |                    |
      |         |   +------+        |                    |
      |    GND  +-------------------+ GND                |
      +---------+                   +--------------------+

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Status

AVR128DA(28,32,48,64):

(serial speed 115200 or 230400)

CHIP ERASE                      OK
FLASH           read/write      OK
EEPROM          read/write      OK
FUSES           read/write      OK
LOCK            read/write      OK
USERROW         read/write      OK
USERROW write on locked device  OK
SIGNATURE       read            OK
TEMPSENSE       read            OK
SERIAL          read            OK

To list all available memory regions use:

upditool -p avr128da32 -P /dev/null -U help:::

To list supported devices use:

upditool -p help -P /dev/null

No TINY0/1 devices support for now

(due missing specifications in device_avr.h)

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Examples

(upditool tries to use the same command line switches as avrdude)

read flash into file flash.bin (raw)

upditool -U flash:r:flash.bin:r -p avr128da32 -P /dev/ttyUSB2

read eeprom into file eeprom.hex (intel hex):

upditool -U eeprom:r:eeprom.bin:i -p avr128da32 -P /dev/ttyUSB2

write userrow (only 1st two bytes) from command line immediete arguments

upditool -p avr128da32 -P /dev/ttyUSB2 -U userrow:w:0x55,0xaa:m

multiple memories verify/read:

upditool -U signature:v:0x1e,0x97,0x09:m -U serial:r:/dev/null:h
            -U eeprom:r:-:h -U TEMPSENSE0:r:-:h -U TEMPSENSE1:r:-:h
            -U lock:r:-:h -U userrow:r:-:h
            -p avr128da32 -P /dev/ttyUSB2

lock device

upditool -p avr128da32 -P /dev/ttyUSB2 -U lock0:w:0x00:m

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Compilation

make

copy "upditool" to your favorite directory for local executables

debian users:

fakeroot debian/rules binary

then install package

WIN 10

The preferred method is compilation in a Linux environment or you can use WSL. https://docs.microsoft.com/en-us/windows/wsl/install-win10

Please install packages and run compilation:

apt install git make mingw-w64
git clone https://github.com/popovec/upditool
cd upditool
make upditool.exe

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I wrote this software, because support for AVR DA devices is incomplete in https://github.com/mraardvark/pyupdi (Sep 2020)

Many thanks for inspiration to: https://github.com/mraardvark, https://github.com/Polarisru/updiprog

Special thanks to https://www.avrfreaks.net/forum/which-updi#comment-2391851 (BOOTDONE, OCD KEY etc..)