austriamicrosystems AS5030 Panduan Pengoperasian - Halaman 4
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Halaman CetakAS5030 8 bit high speed magnetic rotary encoder
Demoboard Operation Manual
2.5
OTP
The "OTP" tab, displays the OTP configuration bit of the selected AS5030 sensor.
•
In Onboard mode, the configuration bits can be temporary changed (access to the Read and Write
functions only). After a new power up, the configuration bits are set back to their default state.
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In External mode, the AS5030 can be temporary configured, and can be permanently programmed too.
The Read, Write and Prog functions are available.
Zero Position Programming:
The Zero Position Programming tool is used to assign a zero value to a defined mechanical position.
Move the magnet to a desired reference position, which is the mechanical 0°.
Click on "Get absolute position". The actual angle seen on the sensor side is displayed in decimal and
binary (Z7..0 bits).
Click on "Write zero position". The bits Z7..0 are written to the Zero Position register of the AS5030.
Now the actual mechanical angle is the 0° angle on the AS5030 side.
This value can be permanently fused on an external AS5030 sensor by clicking on Prog.
OTP registers:
In On-board mode, the OTP registers can't be permanently fused.
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Read: Reads back the OTP configuration registers of the selected sensor.
•
Write: Writes the configuration bits as represented in the checkboxes to the selected AS5030. Those bits
won't be permanently written, and will be lost if the sensor is powered down.
•
Prog (external mode only): After having written the configuration bits to the AS5030, those bits can be
permanently fused by clicking on Prog. After a new power up of the device, this new configuration is enabled.
Revision 1.0, 29-May-08
Figure 5: OTP tab
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