SKR V 1.4 TMC2209 UART Sensorless Homing
My screen comes up with TMC Error
with z2 plug in next to z both steppers go down but won’t raise (Z+) From documents I’ve read I should be plugging z2 on the right side of Y2. So here is how my steppers are from top left of board plugs facing north. X,Y,Z,Space, Y2, Z2
The TMC error I can still move all axis with Z2 plug in the space as explained.
Any help would be great. Jerry
Can you connect a computer and send M122? One, or at least one, of your driver’s can’t communicate with the skr.
I will soon and let you know results
M122
SENDING:M122
axis:pwm_scale/curr_scale/mech_load|flags|warncount
X Y Y2 Z Z2
Address 0 0 0 0 0
Enabled false false false false false
Set current 900 1200 1200 900 900
RMS current 887 1160 1160 887 887
MAX current 1251 1636 1636 1251 1251
Run current 28/31 20/31 20/31 28/31 28/31
Hold current 14/31 10/31 10/31 14/31 14/31
CS actual 14/31 10/31 10/31 14/31 14/31
PWM scale
vsense 1=.18 0=.325 0=.325 1=.18 1=.18
stealthChop true true true true true
msteps 16 16 16 16 16
interp true true true true true
tstep max max max max max
PWM thresh.
[mm/s]
OT prewarn false false false false false
triggered
OTP false false false false false
pwm scale sum 16 12 12 16 16
pwm scale auto 0 0 0 0 0
pwm offset auto 36 36 36 36 36
pwm grad auto 14 14 14 14 14
off time 4 4 4 4 4
blank time 24 24 24 24 24
hysteresis
-end 2 2 2 2 2
-start 1 1 1 1 1
Stallguard thrs 100 100 100 0 0
uStep count 40 40 40 40 40
DRVSTATUS X Y Y2 Z Z2
sg_result 0 0 0 0 0
stst
olb
ola
s2gb
s2ga
otpw
ot
157C
150C
143C
120C
s2vsa
s2vsb
Driver registers:
X 0xC0:0E:00:00
Y 0xC0:0A:00:00
Y2 0xC0:0A:00:00
Z 0xC0:0E:00:00
Z2 0xC0:0E:00:00
Testing X connection… OK
Testing Y connection… OK
Testing Y2 connection… OK
Testing Z connection… OK
Testing Z2 connection… OK
No more error’s Didn’t realize I needed 5 chips my bad
Thanks
That looks pretty good.
The Y and Z current is higher than the rest for some reason. Make sure your steppers don’t get too hot (50C is ok).
Should I Change all to 900?
If you didn’t mean to change them to 1200, I would change them to 900. 900mA is a good starting place. In a garage in the summer, it might be a bit too high still. But that’s what I have mine set to.