Artemis upload failed

asprenger · August 13, 2019, 3:50pm

I have an application what I would like to upload to an Artemis board. I’m testing with an Artemis Nano and an Artemis Blackboard. I can successfully run the Blink example.

When I try to upload my application I’m getting the following error message:

Sending Hello.

Received response for Hello

Bootloader connected

Received Status

length = 0x58

version = 0x3

Max Storage = 0x4ffa0

Status = 0x2

State = 0x7

AMInfo =

0x1

0xff2da3ff

0x55fff

0x1

0x49f40003

0xffffffff

Sending OTA Descriptor = 0xfe000

Sending Update Command.

number of updates needed = 1

Sending block of size 0x15a34 from 0x0 to 0x15a34

Sending Data Packet of length 8180

Sending Data Packet of length 6828

No response for command 0x00000008

Response not valid

Failed to ack command

Fail

Tries = 3

Upload failed

The upload always fails when uploading the last chunk of the application binary.

Any idea?

liquid.soulder · August 13, 2019, 5:01pm

I just ran into this problem as well – it appears to only happen on larger binary uploads. The error messages indicate (by omission) that there were no bytes received for the response (rather than the wrong bytes being received.) So this made me think of a timeout problem. In the ‘ambiq_bin2board.py’ script I changed the two lines

line# 383: with serial.Serial(args.port, args.baud, timeout=1) as ser:
line# 417: with serial.Serial(args.port, args.baud, timeout=0.5) as ser:

to

line# 378: connection_timeout = 5
line# 384: with serial.Serial(args.port, args.baud, timeout=connection_timeout) as ser:
line# 418: with serial.Serial(args.port, args.baud, timeout=connection_timeout) as ser:

This worked for me first try after all previous uploads failed exactly the way you described. (I am uploading the ble_cordio_tag example from the AmbiqSuite SDK, size is 105516 bytes)

Until we make a new release you’ll have to call the python script directly to see these changes take place. Modify the appropriate upload tool in the ‘platform.txt’ file to either call the script with Python directly or re-generate the executable from the python script with pyinstaller.

pyinstaller --onefile ambiq_bin2board.py

asprenger · August 13, 2019, 7:52pm

Ok nice, that solves the problem! Thanks for the quick solution!