1、5V供电,直接设置DAC输出,范围只有0V~2.5V,SPI接口工作已经正常。
2、项目需要DAC输出0~5V,发送0x012000后接着发送0x20FFFF,DAC输出电压依旧为2.5V,关闭内部参考电压无效。
3、请问下,发送0x012000,有什么前提条件吗?还是发送的顺序有要求呢?附原理图。
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