cannot upload to board

[jerabaul29]

I have a board, with the SVL bootloader (I am able to upload from the Arduino IDE). However in Platformio I get:

RAM:   [==========]  99.7% (used 391928 bytes from 393216 bytes)
Flash: [=         ]  10.5% (used 103592 bytes from 983040 bytes)
Configuring upload protocol...
AVAILABLE: svl
CURRENT: upload_protocol = svl
/home/jrlab/.platformio/packages/framework-arduinoapollo3/tools/uploaders/svl/dist/linux/svl /dev/ttyUSB0 -b 921600 -f .pio/build/SparkFun_RedBoard_Artemis/firmware.bin -v

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.
=================================================================================== [SUCCESS] Took 2.79 seconds ===================================================================================

• any idea where the problem is? I have double checked the platformio.ini, I think it looks good (/dev/ttyUSB0 is well the port I am using successfully in Arduino IDE):

[env:SparkFun_RedBoard_Artemis]
platform = apollo3blue
board = SparkFun_RedBoard_Artemis
framework = arduino
upload_port = /dev/ttyUSB0

[jerabaul29]

(the RAM usage issue of #15 is also visible, but I think this is a separate issue?).

[nigelb]

Hi @jerabaul29 Check out the latest commits on master. It uploads for me now.

[nigelb]

@jerabaul29, since I see you are using Linux, this may be relevant: sparkfun/Apollo3_Uploader_SVL#4

[cadeo111]

I was having this issue on macOS 12.1 with the Sparkfun ExpLoRaBLE to resolve it I had to change the default upload baudrate from 921600 to 115200

[env:SparkFun_Thing_Plus_expLoRaBLE]
platform = apollo3blue
board = SparkFun_Thing_Plus_expLoRaBLE
framework = arduino
upload_speed = 115200; <- add this line

[nigelb]

Hi @cadeo111,

Thanks for that.

To help the next person who has upload issues I have made a list of all the issues and solutions I have come across with uploading to the Artemis boards.