Firmware versions

[b4be1]

What firmware version should one use?

By default, digit-2020-1b-dfu.bin is specified

https://github.com/facebookresearch/digit-design/blob/ead7143a6b2e728dde39d9a18e598969253a2efe/firmware/digit-programmer/programmer.yaml#L3

However, I am getting an error

Download        [====================== ]  98%        254464 bytes failed!
state(10) = dfuERROR, status(8) = Cannot program memory due to received address that is out of range
dfu-util: can't detach
Resetting USB to switch back to runtime mode

If I use digit-2020-1b.bin, then everything is working fine.

With digit-2021-2a.bin, I can install it, but then upon connecting to the Digit, the red LED turns off.

With digit-2021-2a-padded.bin, I am getting the same download error as above at 96%.

[AlphaBetaPhi]

Hi @b4be1,

The -dfu.bin suffix of the firmware file is for new devices only which have not been initially programmed. After you program the device initially you may use the digit-20xx-xx.bin firmware binaries instead of the -dfu.bin and -padded.bin files.

Which version of the digit-interface are you using? Can you pull the latest from the digit-interface repository and try?

[b4be1]

Hi @AlphaBetaPhi,

Thanks for the explanation. I used the latest version of the digit-interface. I ran the default -dfu.bin first (probably successfully, I didn't pay attention) and then tried the other firmware versions. It makes sense then that when I install -dfu.bin for the second time, it does not terminate successfully, because it is supposed to be installed only in the beginning.

The only unexpected behavior is then that the red LED turns off when I use digit-2021-2a.bin. It does not bother me too much at the moment though, because I can use the other version of the firmware.

[AlphaBetaPhi]

Hi @b4be1 ,

Can you post the output of

from digit_interface.digit_handler import DigitHandler

digits = DigitHandler.list_digits()

and then post the following after connecting to that DIGIT using,

from digit_interface.digit import Digit

d = Digit("Dxxxxx") # your serial number 
d.connect()
print(d.info())

[b4be1]

Hi @AlphaBetaPhi,

I started with a fresh Digit. I first installed digit-2020-1b-dfu.bin and then ran the commands you provided. Here is the output

[{'dev_name': '/dev/video0', 'manufacturer': 'Facebook', 'model': 'DIGIT', 'revision': '0101', 'serial': 'D00001'}, {'dev_name': '/dev/video1', 'manufacturer': 'Facebook', 'model': 'DIGIT', 'revision': '0101', 'serial': 'D00001'}] Name: None /dev/video0

• Model: DIGIT
• Revision: 0101
• CV Device?: True
• Connected?: True Stream Info:
• Resolution: 320 x 240
• FPS: 60
• LED Intensity: 255

Then I installed digit-2020-1b.bin and ran the commands. The output was the same. After that, I installed digit-2021-2a.bin and got the following output

[{'dev_name': '/dev/video0', 'manufacturer': 'Facebook', 'model': 'DIGIT', 'revision': '0200', 'serial': 'D00001'}, {'dev_name': '/dev/video1', 'manufacturer': 'Facebook', 'model': 'DIGIT', 'revision': '0200', 'serial': 'D00001'}] Name: None /dev/video0

• Model: DIGIT
• Revision: 0200
• CV Device?: True
• Connected?: True Stream Info:
• Resolution: 320 x 240
• FPS: 60
• LED Intensity: 255

As I said before, the only noticeable difference between 2020-1b and 2021-2a is that the red LED stops shining when I run d.connect(). The camera stream seems to be OK.

I furthermore did some additional experiments on another fresh Digit. I first installed 2021-2a-padded.bin. This worked fine. So, basically, I am able to either install 2020-1b-dfu.bin or 2021-2a-padded.bin as the initial firmware. After that, I am able to install 2020-1b or 2021-2a, but I can't install -dfu or -padded versions anymore because they seem to run out of memory at around 96%–98%.

One thing is still unclear to me: is there a difference between 2020-1b and 2020-1b-dfu? It seems all basic functionality is already included in 2020-1b-dfu.

Some parts had to be replaced in the production of these Digits. I think even the LEDs are different. I attached the materials used in the Digits I am testing on: LEDs.pdf PCB.pdf

[AlphaBetaPhi]

Hi @b4be1,

It looks like the correct firmware is installed, but the digit-interface library version has not been updated as the LED intensity is 255. On new digit-interface library this will set the LED intensity to a 12-bit value.

Can you try upgrading the pip package,

pip install digit-interface --upgrade and try with the new firmware.

[b4be1]

Hi @AlphaBetaPhi,

I was on version 0.1.4. After updating to 0.2.1 everything works fine when using digit-2021-2a.bin. LED intensity is 4095 in the test output. Thanks!