AMS AS5048 Eval-Kit Manual Kit - Halaman 9
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Halaman CetakAS5048 Adapter Board
4.3
Multi devices SPI Daisy chain mode
The AS5048 can be daisy chained, using 4 wires only for SPI communication.
In this configuration with n x encoders, the sequence will be processed as follow:
- MCU sets SS/ = 0
- MCU shifts n x 16-bit (e.g. READ command FFFFh) through the chain
- MCU sets SS/=1
At that point all the n x encoders have received the READ command FFFFh.
- MCU sets SS/=0
- MCU shifts n x 16-bit (e.g. NOP command 0000h)
- MCU sets SS/=1
At that point the n x 16-bit received on MISO are the n x angle values.
Figure 7: Multi Devices in Daisy chain mode
3-3.6V
Regulated
Power Supply
GND
ams Eval Kit Manual, Confidential
[v1-3] 2014-Aug-01
MCU
AS5048
AS5048
Page 9
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