Failed to enter bootload phase - Artemis, macOS Sequoia & M3

Development Boards Artemis
1

Hi folks,

I’m curious if anyone has run into the same problem trying to upload code to the SparkFun Artemis on macOS Sequoia using an M3 MacBook.

I am using a MicroMod Data Logging Carrier board and the Artemis Processor. When I connect via USB C, I can view the device and the output is displayed to Serial Monitor. However, I am unable to upload code. I have tried every combination of pressing the Boot and Reset buttons to no avail.

The Artemis uses the CH340E USB-to-Serial chip, though I’m not entirely sure that’s the problem since I can already view the USB device.

Cheers,
Adam

Artemis SVL Bootloader
Script version 1.7

Phase:	Setup
	Cleared startup blip
Failed to enter bootload phase

Phase:	Setup
	Cleared startup blip
Failed to enter bootload phase

Phase:	Setup
	Cleared startup blip
Failed to enter bootload phase
Target failed to enter bootload mode. Verify the right COM port is selected and that your board has the SVL bootloader.
2
3

Thanks, Paul! I’ll give it a try.

4

The CH34xVCPDriver.dmg driver was installed successfully but it looks like artemis_svl will need to be recompiled with the added code. I seem to recall this having to be done in the past when Apple broke previous versions of everything.

/Users/adam/Library/Arduino15/packages/SparkFun/hardware/apollo3/1.2.3/tools/artemis/macosx/artemis_svl

@paulvha can you remind me if there is an easy way to achieve this?

Cheers,
Adam

# ***********************************************************************************
#
# Main function
#
# ***********************************************************************************
def main():
    try:
        num_tries = 3

        print('\n\nArtemis SVL Bootloader')

        verboseprint("Script version " + SCRIPT_VERSION_MAJOR +
                     "." + SCRIPT_VERSION_MINOR)

        if not os.path.exists(args.binfile):
            print("Bin file {} does not exist.".format(args.binfile))
            exit()

        bl_success = False
        entered_bootloader = False

        for _ in range(num_tries):

            with serial.Serial(args.port, args.baud, timeout=args.timeout) as ser:

                # Toggle RTS to signal Artemis bootloader mode
                ser.rts = False
                ser.rts = True
    
                # startup time for Artemis bootloader   (experimentally determined - 0.095 sec min delay)
                t_su = 0.15

                time.sleep(t_su)        # Allow Artemis to come out of reset

                # Perform baud rate negotiation
                entered_bootloader = phase_setup(ser)

                if(entered_bootloader == True):
                    bl_success = phase_bootload(ser)
                    if(bl_success == True):     # Bootload
                        #print("Bootload complete!")
                        break
                else:
                    verboseprint("Failed to enter bootload phase")

            if(bl_success == True):
                break

        if(entered_bootloader == False):
            print(
                "Target failed to enter bootload mode. Verify the right COM port is selected and that your board has the SVL bootloader.")

    except serial.SerialException:
        phase_serial_port_help()

    exit()
5

All credits to the people that worked on that topic. As described in the last entry Unable to flash Artemis Thing Plus on macOS Sequoia - #6 by farrell
you need to download and run ‘pyinstaller’ to create a new executable function and copy that the macosx folder you indicated.