Stepper motor module not reporting settings

[bsculley]

The stepper motor module provides an I2C interface to GRBL. The '$$' command is supposed to return all the settings, but all I am getting is:

$$

$0mnoing seek, mm/min) $21=100 (homing debounce, msec) $22=1.000 (homing pull-off, mm) ok

This does not include the steps/mm ($100-$102) settings without which the module is useless.

Maybe I have a module with downlevel firmware, but I have no idea how to upgrade it, or even if it's possible. Any help will be appreciated.

Bob

[EeeeBin]

step/mm not $100-$102, try test this https://github.com/m5stack/stepmotor_module/blob/master/Firmware%20for%20stepmotor%20module/GRBL-Arduino-Library/report.cpp#L146

[bsculley]

Ok, I see from the code that X, Y and Z steps/mm are $0, $1 and $2, but when I send $$, I am not getting the list indicated in the code.

Only this:

$$

$0mnoing seek, mm/min)

$21=100 (homing debounce, msec)

$22=1.000 (homing pull-off, mm)

ok

Apparently the code running on the device is not the same as what is shown in the link. Is there a way to reflash the stepper control module?

Thanks

From: EeeeBin [email protected] Sent: Friday, August 30, 2019 3:35 AM To: m5stack/M5Stack [email protected] Cc: bsculley [email protected]; Author [email protected] Subject: Re: [m5stack/M5Stack] Stepper motor module not reporting settings (#186)

step/mm not $100-$102, try test this https://github.com/m5stack/stepmotor_module/blob/master/Firmware%20for%20stepmotor%20module/GRBL-Arduino-Library/report.cpp#L146

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[EeeeBin]

Tx buf not enough, so some data is lost. https://github.com/m5stack/stepmotor_module/blob/b09cfa1c261a34c6aba9f3d4a904382dfb001fb2/Firmware%20for%20stepmotor%20module/GRBL-Arduino-Library/serial.h#L34

[bsculley]

Ok, thanks. But the code referenced is a part of GRBL, not part of the Arduino sketch.

How can I apply any changes to the stepper controller module?

Is there a procedure to reflash the stepper controller?

From: EeeeBin [email protected] Sent: Friday, August 30, 2019 10:13 AM To: m5stack/M5Stack [email protected] Cc: bsculley [email protected]; Author [email protected] Subject: Re: [m5stack/M5Stack] Stepper motor module not reporting settings (#186)

Tx buf not enough, so some data is lost. https://github.com/m5stack/stepmotor_module/blob/b09cfa1c261a34c6aba9f3d4a904382dfb001fb2/Firmware%20for%20stepmotor%20module/GRBL-Arduino-Library/serial.h#L34

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[EeeeBin]

sorry, reflash step controllers is not yet supported

[bsculley]

So how can I make it work?

From: EeeeBin [email protected] Sent: Friday, August 30, 2019 11:31 AM To: m5stack/M5Stack [email protected] Cc: bsculley [email protected]; Author [email protected] Subject: Re: [m5stack/M5Stack] Stepper motor module not reporting settings (#186)

sorry, reflash step controllers is not yet supported

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[Zontex]

Hello, what changes do you want to apply? if you want to change the steps you can solder the jumpers on the board to change the step modes (there are 3 different modes)