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User avatar
By brutek
#211520
Bought a Redboard several months ago. Using a Macbook with Mojave (10.14.6). I cannot upload a sketch nor update the boot firmware. The TX/RX LEDs light for a split second, then I get a fail in the Arduino IDE. The Arduino IDE will successfully program an Arduino Uno board.
User avatar
By TS-Brandon
#211528
Can you post the error message from the Arduino IDE?
User avatar
By forthdude
#213462
May or may not be relevant, but I was having the same issue with my Artemis Thing Plus:
Artemis SVL Bootloader
Target failed to enter bootload mode. Verify the right COM port is selected and that your board has the SVL bootloader.
In my case slowing the baud rate down to 460800 did the trick
User avatar
By Inquorate
#220768
Writing to file C:\Users\benja\AppData\Local\Temp\arduino_build_821228/Blink.ino_Wired_OTA_blob.bin
Image from 0x0 to 0x18af0 will be loaded at 0x20000
Connecting over serial port COM3...
Fail
Fail
Fail
Tries = 3
Upload failed

Simply cannot connect with my artemis nano, right out of the box.
User avatar
By YellowDog
#220796
Are you absolutely certain your board is on COM3 and not another port?
Other than COM port, do your settings match these?
Untitled.png
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User avatar
By frankus
#221055
It finally worked for me (MacOS 10.15.7) but I had to slow it all the way down to 57600.

Board: RedBoard Artemis
Uploader: Ambiq Secure Bootloader (Recommended)"
SparkFun Variable Loader Baud Rate: 57600
Port: /dev/cu.usbserial-1420
--
Programmer: "Ambiq Secure Bootloader"
User avatar
By frankus
#221058
Update: installed the driver from here: https://github.com/adrianmihalko/ch340g ... l_V1.3.zip

I now have duplicate serial ports (/dev/cu.usbserial-1420 and /dev/cu.wchusbserial1420), but uploading works. It seems like maybe the built-in Catalina driver doesn't work with this board yet.

The output with the built-in driver is below:

Writing to file /var/folders/dr/l7mlbx6s1wb061grlnkgpykr0000gn/T/arduino_build_910253/sketch_nov28a.ino_Wired_OTA_blob.bin
Image from 0x0 to 0x18640 will be loaded at 0x20000
Connecting over serial port /dev/cu.usbserial-1420...
Sending Hello.
No response for command 0x00000000
Failed to respond
Fail
Sending Hello.
No response for command 0x00000000
Failed to respond
Fail
Sending Hello.
No response for command 0x00000000
Failed to respond
Fail
Tries = 3
Upload failed
User avatar
By TS-Brandon
#221110
frankus wrote:Update: installed the driver from here: https://github.com/adrianmihalko/ch340g ... l_V1.3.zip
Unfortunately, that specific driver repo isn't in our CH340 guide: https://learn.sparkfun.com/tutorials/ho ... -need-them. Therefore, I can't distinguish if that is the issue or contributing to the issue. I would recommend clearing that driver out of your system and replacing it with the one listed in the guide, since we have tested that one, and possibly replacing your current RedBoard.


**Note: Mac's update to Big Sur is causing some disruption to the USB-Serial drivers, such as the CH340. While we are aware of the issue and we are investigating possible solutions, we are unable to provide a full solution at this time because this is an issue between third party software and the Mac OS developers.
User avatar
By e3b0c442
#222694
I'm curious if there are any updates to this, or if anybody has had luck uploading to Artemis boards with Big Sur.

macOS has included CH340 drivers since Catalina, so I feel like this isn't actually a driver issue.

Thanks.
User avatar
By e3b0c442
#222700
Just like to note -- i did verify the functionality of the port/included macOS driver by compiling and installing the tensorflow micro example using a Linux machine and then connecting it back to the MacBook and attaching to the port with screen. I'll build some kind of echo example and get that on if needed to verify bidirectional transmission but the fact that I'm getting the serial read tells me that there is a functioning driver.
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