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关于TMS320F280049C应用的技术问题?

Other Parts Discussed in Thread: TMS320F280049C, C2000WARE, TMDSCNCD280049C

1、TMS320F280049C这款芯片内核1.2V,IO口电压3.3V,内核是否需要从外部供给,还是直接从外部供3.3V电源即可,可否能推荐一款电源芯片?

2、本芯片SPI口的最大通讯速率可以到多少?

3、模拟量输入口如果不做模拟采样用,可否直接用于数字量输入口,引脚是否需要做上拉处理?