AS5601-ASOT datasheet(22/43 Pages) AMSCO

22 / 43 page

Page 22

ams Datasheet

Document Feedback

[v1-02] 2014-Oct-29

AS5601 − Register Description

Burn_Angle Command (ZPOS)

The host microcontroller can perform a permanent

programming of ZPOS with a BURN_ANGLE command. To

perform a BURN_ANGLE command, write the value 0x80 into

to 3 times. ZMCO shows how many times ZPOS have been

permanently written.

This command may only be executed if the presence of the

magnet is detected (MD = 1).

Burn_Setting Command (CONF)

The host microcontroller can perform a permanent writing of

CONFIG with a BURN_SETTING command. To perform a

BURN_SETTING command, write the value 0x40 into register

0xFF.

The BURN_ SETTING command can be performed only one time.

Zero Position and Resolution Programming

A fundamental feature is to program the zero position (ZPOS)

of the magnetic position encoder. This is required to adjust the

A/B outputs to the mechanical pattern (grid) of a contactless

encoder by setting the count transitions (transition of A and or

B) between two adjacent mechanical positions. An example of

a 3-bit contactless encoder is shown in Figure 22.

The electrical positions represent the positions where an A or

B transition occurs. The zero position can be placed in

correspondence of one of the electrical positions (yellow).

A BURN_ANGLE command can be executed up to 3 times to

permanently program the zero position. It can only be executed

if the presence of the magnet is detected (MD = 1).

AS5601-ASOT 数据表(PDF) 22 Page - ams AG