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TMS320F28335: 28335PGFA的SPISOMIA接口不够用

Part Number: TMS320F28335


28335PGFA的SPISOMIA IO接了两路负载,其中一路负载为DAC,另一路负载为SD卡,DAC芯片驱动能力强,导致SD卡读取失效,各位大神有没有好的方法推荐下,不胜感激