SD Card Macro Trouble SLB-EXT

SuperLongBoard ❓Question
1

Hi,

I need help with accessing the sd card in the board for running macros for tool changing.

When I try with default SLBEXT 5.0.11 firmware $f does nothing but says “ok” and G65 P101 returns invalid gcode. (Yes I have basic macro P101.macro on the card) the console shows that the sd card plugin is loaded.

When I try with a generated firmware build from the grblhal web builder flashed onto the board (yes with sd card plugin enabled) $f returns undefined. G65 P101 returns invalid gcode. The console shows that the sd card plugin is loaded.

Gsender 1.5.4

SLB-EXT running Altmill4x4 (5.0.11 firmware)

Thoughts? Thank you for your help.

2

I also had these types of problems with an old 16GB card from a raspi…
Tried a new 32GB micro SD Card and things started working reliably!

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3

Interesting. Thanks for the reply. I am using a 128 GB Sandisk, as I had it lying around. Is there a GB limit or a specific file system needed? FAT32 vs exFAT? I will try a 32 GB card and report back. Thank you.

4

I believe that the SuperLongBoard (SLB-EXT) controller with grblHAL/SienciHAL supports SD cards up to 32 GB formatted as FAT32. SD cards larger than 32 GB, also known as SDXC cards, use the exFAT format, which is supposedly not natively supported by the Grbl firmware.

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5

I would like to bring up a slightly different take on this - 32 GB support is probably the limit but that generally doesn’t mean that a larger card doesn’t work. It just means that the remaining space is wasted.

6

I can confirm that macros are now executing from the new 32 GB card. Maybe a line should be added to the documentation. Thank you for your help.

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