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#include "bsp_485.h"
void L2_485_init(void)
{
//485配置输出 P70 P41
BITN_0(P7M1,BITN0);BITN_1(P7M0,BITN0);
BITN_0(P4M1,BITN1);BITN_1(P4M0,BITN1);
}