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使用三片ADS1293 搭成12导联ECG，cpu使用stm32；1293向stm32数据通信时，SDO/SDI/SCLK分别接了STM32的spi引脚，DRDYB/CSB1/CSB2/CSB3接的是普通的I/O口，这种接线方式是否可行？
