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求ADS1220驱动代码,驱动不起来啊

Other Parts Discussed in Thread: MSP430F5438A, ADS1220

我参考TI的小尺寸、2 线、4 到 20mA 电流环路 RTD 温度发送器参考设计例程设计。
现利用MSP430F5438A写驱动代码,将寄存器配置数据写入AD中,然后在读取出来,结果不对啊,貌似读不出来。而且DRDY一直处于高电平,这是怎么回事?

请问有没有ADS1220的驱动代码,能否发我一份,谢谢了!我的邮箱是404898624@qq.com