I am developing a PCB using the BMP388 chip, and am now writing this to check whether my current schematic would work, and to ask what I connect the INT pin to. Thank you so much, I am very new to PCB development.
BMP388 I2C PCB development
Best reply by FAE_CA1
Hi,
Thanks for your inquiry. Your schematics for BMP388 I2C interface looks fine.
BMP388 has one interrupt output pin. By default it is push-pull and active-high. BMP388 has three interrupts available: FIFO-Full, FIFO-WTM (watermark) and DRDY (data ready). If you don't use any of BMP380 three interrupts, then you can leave this interrupt pin floating or unconnected to anywhere. If you want to use DRDY interrupt for example, then you can tie this interrupt pin to your MCU's GPIO pin which should be set to input. Then you don't need to keep polling the drdy status bit in register to check if new data is ready to read or not.
Thanks.
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