Marlin 2.0 + STM32duino + RUMBA32 + TMC5160 diag1 no output?

[DropbearNinja]

Hi, I cannot get sensorless homing to work with above setup. At present normal movement commands work fine (but ignore endstops) Homing causes any axis to move slightly around its current location and stop, or not move at all

I have the diag1 on the TMC5161 hooked to S pin of min endstops, i don't have a scope, just a DMM, but it always reads around 2.4ish volts

drivers are controlled via SPI

I have pullups enabled, but no external pullup (though i tried, and made no difference)

I have tried testing with load, and no load, and both with whole range of sg thresholds, nothing work

SENDING:M122
		X	Y	Z
Enabled		false	false	false
Set current	1000	1000	1000
RMS current	990	990	990
MAX current	1396	1396	1396
Run current	19/31	19/31	19/31
Hold current	9/31	9/31	9/31
Global scaler	133/256	133/256	133/256
CS actual	9/31	9/31	9/31
PWM scale	18	65555	18
vsense
stealthChop	true	true	false
msteps		16	16	16
tstep		max	max	max
pwm
threshold
[mm/s]
OT prewarn	false	false	false
OT prewarn has
been triggered	false	false	false
off time	4	4	4
blank time	24	24	24
hysteresis
-end		2	2	2
-start		1	1	1
Stallguard thrs	8	8	8
DRVSTATUS	X	Y	Z
stallguard
sg_result	39	38	35
fsactive
stst		*	*	*
olb
ola
s2gb
s2ga
otpw
ot
Driver registers:
		X	0x80:09:40:27
		Y	0x80:09:40:26
		Z	0x80:09:00:23
Testing X connection... OK
Testing Y connection... OK
Testing Z connection... OK

M119 are all open

Marlin.zip

It seems like diag1 isn't sending a signal properly?

I cannot run your example test sketch because it wont compile on stm32 and I don't know how to alter it to work :(