TMC423 fig.4

[krunal_299]

One more stuff i found in fig.4 and 5 of 423 datasheet which confuse me:
what about CLK which is grounded and CLKB?

[Heye Caspers (TRINAMIC)]

Hi,

This is a failure coming from a (much) older hardware version. The CKLB pin became CLK (pin 88) and the old CLK (pin 39) is now an additional ground connection.
Figure 4 and 5 are corrected in the new manual v1.13 coming up probably until tomorrow.

Thanks for the hint. Feedback like this may help many other users.

[krunal_299]

hey 1 more thing confusing me in this fig. 4.
In notes for fig.4 u have written : NSCS_D activates ref. switches
but in the fig. NSCS_D is permanently tied with +Vcc.
What does it mean?

[TRINAMIC_BD]

Looks like a failure in the schematic. NSCS_D of 423 should be tied to NSCS_S of the 428 for use of the reference switch multiplexer integrated in the TMC423. Heye will take care for this.

[krunal_299]

hahhaaaaaaaaa
by the way 1 more stuff is still there in fig.5 of 423.
Here, SDI_S and SCK_S are connected to TMC428 as well as tied to +5v .
so pls correct it
With best regards!

[TRINAMIC_BD]

Has been corrected. Thanks!