1、芯海 CSE7766 单相多功能计量芯片 波特率4800bps 8 1 none none u8 over=0;u16 over_counter=0;u8 data20=0;void dc1_uart_data_handler(u8* data,u16 data_len){u8 i = 0;u32 coefficient = 0;u32 period = 0;u16 checkpac