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cc2640r2 遇到 si7051,si7051的i2c有些特殊

请教的问题,我用cc2640r2去驱动si7051,遇到了问题

si7051是一个温度传感器,i2c的接口,当我下命令让它开始采集温度时,si7051如果没有采集完,让会通过不回ack来告诉master它没有完成。

我是用的I2C_transfer(I2CHandle, &i2cTransaction);来做的,不知道该怎么改。请帮忙看看,谢谢!