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我想把AM3358的PRU-ICSS配置成串口和CAN，看了下手册只有两个脚是配置成UART用的：pr1_uart0_rxd、pr1_uart0_txd，
1.那是不是说只能配置成一个UART，不能两个、三个吗？如果可以，引脚是怎么用的？
2.能配置成CAN吗，用哪个引脚？
你是想用PRU扩展串口么？
PRU扩展CAN口好像还没有demo。
