Unable to upload example Blink.bin to Artemis Thing Plus on macOS Sequoia on M3 MacBook Pro

[bblacey]

I downloaded the 3.0.0 release and tried to flash the example Blink.bin to an Artemis Thing Plus board but it fails as follows.

Is there a way to enable debug logging?

[andreer]

It may help to disconnect and re-connect the board after hitting the upload button.

[PaulZC]

Hi Bruce (@bblacey ),

Apologies for the delay. Thank you for reporting this - both here and on the Forum.

I'm taking a look now. I'll post updates here as I go.

Best,
Paul

[PaulZC]

Pre-update testing - Windows:

Can I load the latest OpenLog Artemis firmware binary onto the Artemis?

On Windows:
Windows 11 Pro 24H2 64-bit running on Core_i5 12th Gen
Artemis-Firmware-Upload-GUI v3.0.0
CH340 driver wch.cn 3.9.2024.9 16/09/2024
OLA has Artemis SVL Bootloader - Version: 5 already loaded
I can Upload Firmware:

But Update Bootloader fails:

I remember seeing the Update Bootloader fail previously. I put it down to the Artemis already having the version 5 bootloader already loaded. But maybe the RTS issue is behind this too?

[PaulZC]

Pre-update testing - macOS:

Mac mini - Apple M2
macOS Sequoia 15.3.1
WCH drivers from CH34xVCPDriver.pkg

I can Upload Firmware at 460800:

But Update Bootloader fails:

[PaulZC]

Ah. A second Upload Firmware fails:

[PaulZC]

OK. I think this is all heading in the right direction. The fix from farrell works well. The trick is to generate a reset using RTS / DTR before attempting to upload the binary.

The issue with Update Bootloader failing was probably down to baud rate. The baud rate must be reduced to 115200 when updating the bootloader. This was done automatically with version 2 of the GUI, but we'd missed it with version 3.

[PaulZC]

I spoke too soon...

I have Update Bootloader and Upload Firmware working on Windows.

On macOS, Upload Firmware works. But Update Bootloader fails.

There must be some small difference in the way RTS is configured on macOS compared to Windows.

I'll try and poke at this a bit more tomorrow.

[PaulZC]

OK. We are back in business. RTS behaves differently on macOS. Here is the Update Bootloader RESET and BOOT sequence (Digital and Analog) on macOS:

[PaulZC]

And here is the Upload Firmware RESET on macOS:

[PaulZC]

Here is Update Bootloader on Windows. Exact same code, different sequence:

[PaulZC]

And here is Upload Firmware on Windows:

[PaulZC]

I think we are done. I'll release the updated code shortly.

[PaulZC]

Closed by v3.1.0