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请您参考一下下面的链接是否对您有所帮助
https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/718494/msp432e401y-transmit-data-through-i2c-to-a-device
https://www.hackster.io/cycling-safer/the-wingman-has-your-back-184ef0
