32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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Extruder not responding with SKR v1.4 and TMC2208 3.0 #247
I am running the SKR v1.4 (non-turbo) and TMC2208 3.0 drivers. I am having trouble getting any response from my extruder The motor locks when motors are enabled, but I can't get any extrusion or retraction When I run M122 I get "Testing E connection... Error: All LOW", but only for the extruder. Interestingly, I have set the extruder to 1/16th stepping like all the other motors, but it is showing 1/256th stepping. I have tried replacing the TMC2208 3.0 with another and I get the same responses. I have pasted the info from M122 below. Any thoughts or help would be greatly appreciated.
X Y Z E
Enabled false false false false
Set current 1000 1000 1000 1000
RMS current 994 994 994 994
MAX current 1402 1402 1402 1402
Run current 17/31 17/31 17/31 17/31
Hold current 8/31 8/31 8/31 8/31
CS actual 8/31 8/31 8/31 0/31
PWM scale 10 10 10 0
vsense 0=.325 0=.325 0=.325 0=.325
stealthChop true true true false
msteps 16 16 16 256
tstep max max max 0
pwm
threshold
[mm/s]
OT prewarn false false false false
OT prewarn has
been triggered false false false false
off time 4 4 4 0
blank time 24 24 24 16
hysteresis
-end 2 2 2 -3
-start 1 1 1 1
Stallguard thrs
DRVSTATUS X Y Z E
stst *
olb
ola
s2gb
s2ga
otpw
ot
157C
150C
143C
120C
s2vsa
s2vsb
Driver registers:
X 0xC0:08:00:00
Y 0xC0:08:00:00
Z 0xC0:08:00:00
E 0x00:00:00:00 Bad response!
Testing X connection... OK
Testing Y connection... OK
Testing Z connection... OK
Testing E connection... Error: All LOW
jstaylor11
commented
4 years ago 
I am running the SKR v1.4 (non-turbo) and TMC2208 3.0 drivers. I am having trouble getting any response from my extruder The motor locks when motors are enabled, but I can't get any extrusion or retraction When I run M122 I get "Testing E connection... Error: All LOW", but only for the extruder. Interestingly, I have set the extruder to 1/16th stepping like all the other motors, but it is showing 1/256th stepping. I have tried replacing the TMC2208 3.0 with another and I get the same responses. I have pasted the info from M122 below. Any thoughts or help would be greatly appreciated.
Enabled false false false false Set current 1000 1000 1000 1000 RMS current 994 994 994 994 MAX current 1402 1402 1402 1402 Run current 17/31 17/31 17/31 17/31 Hold current 8/31 8/31 8/31 8/31 CS actual 8/31 8/31 8/31 0/31 PWM scale 10 10 10 0 vsense 0=.325 0=.325 0=.325 0=.325 stealthChop true true true false msteps 16 16 16 256 tstep max max max 0 pwm threshold [mm/s] OT prewarn false false false false OT prewarn has been triggered false false false false off time 4 4 4 0 blank time 24 24 24 16 hysteresis -end 2 2 2 -3 -start 1 1 1 1 Stallguard thrs DRVSTATUS X Y Z E stst * olb ola s2gb s2ga otpw ot 157C 150C 143C 120C s2vsa s2vsb Driver registers: X 0xC0:08:00:00 Y 0xC0:08:00:00 Z 0xC0:08:00:00 E 0x00:00:00:00 Bad response! Testing X connection... OK Testing Y connection... OK Testing Z connection... OK Testing E connection... Error: All LOW