Other Parts Discussed in Thread: DAC8560EVM , DAC8560 求助。我用TMS320F28335eZdsp与DAC8560EVM的SPI连接，做DAC。用到了三个接口，GPIO18_SPICLKA与DAC8560EVM的J2-3相连，GPIO19_SPISTAn与DAC8560EVM的J2-7相连做SYNC，GPIO16_SPISIMOA与DAC8560EVM的J2-11相连作为DIN。
我检测了DAC8560芯片管脚的时序，与例程基本一致。
用的内部参考电压…
Hi Xuchaofan,
出现这样的结果应该是内部参考没有disable.
To disable the internal reference execute the write sequence illustrated in table 1 followed by at least two addiional sclk falling edges while sync is low.
