AS5601-ASOT datasheet(24/43 Pages) AMSCO

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[v1-02] 2014-Oct-29

AS5601 − Register Description

The configuration procedure for a rotary encoder is shown

below in Figure 23.

Figure 23:

Zero Position and Resolution Programming Procedure

Note(s) and/or Footnote(s):

1. After each register command, the new setting is effective at the output at least 1 ms later.

2. It is highly recommended to perform a functional test after this procedure.

3. At least 1 ms after each register command the new setting is effective at the output.

4. The BURN_ANGLE command can be executed up to 3 times and only if the presence of the magnet is detected (MD = 1).

Use the correct hardware configuration as shown in Figure 33

Step 1

Power up the AS5601.

Step 2

Configure the desired number of positions using ABN(3:0).

Step 3

The mechanical configuration snapped into the grid.

Read out the actual RAW ANGLE.

Calculate the compensation value to adjust the mechanical grid and the encoder angle.

Refer to Figure 22 and Figure 24. Write the compensation value into ZPOS.

Wait at least 1ms.

Step 4

Write the required setting into the configuration register CONF and PUSHTHR.

Wait at least 1 ms.

Proceed with Step 5 to permanently program the configuration.

Step 5

Perform a BURN_ANGLE command to permanently program the zero position.

Wait at least 1 ms.

Step 6

Perform a Burn_Setting command to permanently program the configuration.

Wait at least 1 ms.

Step 7

Verify the BURN commands:

Write the commands 0x01, 0x11 and 0x10 sequentially into the register 0xFF to load the

actual OTP content.

Read and verify the permanently programmed registers to verify that the

BURN_SETTINGS and BURN_ANGLE command was successful.

Step 8

Read and verify the permanently programmed registers again after a new power-up cycle.

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