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#includeat91rm9200.h unsigned short *sp=(unsigned short *)0x10000000; //short占用2个字节 void pio_init() { AT91C_BASE_SYS->PIOA_PDR=0XC0000000; AT91C_BASE_SYS->PIOA_ASR=0XC0000000;//发送端口 } void dbgu_i...