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AS7225 bảng dữ liệu(PDF) 18 Page - OSRAM GmbH

tên linh kiện AS7225
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AS7225 bảng dữ liệu(HTML) 18 Page - OSRAM GmbH

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AS7225
Functional Description
Datasheet
• PUBLIC
DS000496
• v2-00 • 2019-Jun-28
75
│ 17
programming is finished and the programming tool is disconnected the indicator LED turns on. In case
of an error while programming the LED starts a blinking operation.
The LED_IND pin is set for 1 mA LED operation by the AS7225 factory firmware, and is not under
user control. The indicator LED can be enabled or disabled by using the ATLED0 command or the
LED_CONFIG register (0x07). Consideration should be taken with respect to any final product design
to avoid light intrusion from the indicator LED into the direct or reflected field of view of the sensor.
Refer to the separate ams document for a complete description of AS7225 Firmware Update
Methodology.
7.3.2
Interrupt Operation
The INT-pin informs the external MCU that the calculation of new PWM values is finished and the data
are ready to read. To activate the INT-pin, bit1 of the DIR_CONF command has to be enabled
(INT=1). By using UART the ATINTRP command has to be enabled. When the DATA_RDY register bit
finished the integration and the new PWM value calculation is finished the INT-pin of the DIR_CONF
register pulled down to 0. After reading of the PWM values due to the external MCU the INT-pin will be
reset to 1 automatically.



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