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/bsp/stm32/stm32h743-atk-apollo/board/ports/
A Ddrv_ov2640.c44 static pcf8574_device_t pcf_dev = RT_NULL; variable
551 if (pcf_dev == RT_NULL) in ov2640_pwdn_set()
556 pcf8574_pin_write(pcf_dev, DCMI_PWDN_IO, sta); in ov2640_pwdn_set()
596 pcf_dev = pcf8574_init("i2c1", RT_NULL); in rt_ov2640_init()
597 if (pcf_dev == RT_NULL) in rt_ov2640_init()

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