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→Read pin status
Related commands ：gpios_status.
Related commands ：gpios_status.
=== Special note for RAW series camera ===
RAW series cameras have only one MCU as the auxiliary chip. Normal mode and SDA mode can be switched by [[Mv mipi i2c.sh user guide#mcubypass|mcubypass]] command.
==== Normal mode ====
In normal mode, the motherboard cannot access the sensor directly. the MCU provides the initial configuration of the sensor and the configuration of various functions. For different embedded platforms, we have provided corresponding drivers, scripts, and demos.
The functions are described in the above description of this article.
==== SDA mode ====
SDA mode is short for Sensor Direct Access, when the MCU no longer has any control over the i2c of the sensor. The user controls the sensor directly.
Meanwhile, in order to provide necessary system information, mode switching, and configuration of trigger signals, the MCU itself still provides i2c interface to the outside.
For example, the RAW-MIPI-SC132M has two i2c addresses in SDA mode: 0x30 is the i2c address of the sensor and 0x3b is the i2c address of the MCU.
In SDA mode, the drivers and demos we provided are no longer applicable, only some [[Mv mipi i2c.sh user guide|mv_mipi_i2c.sh]] instructions and [[MV Series MIPI Camera Register Map|registers]] are available.
==== Trigger Delay ====
For RAW-MIPI-SC132M, the trigger signal needs to be forwarded to the sensor by the MCU, and this forwarding has a fixed delay of about 850ns.
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