io.h

SM5964 ISP程序。.........

#include"common.h"
#define WAIT_EO_TX {while(TI==0);TI=0;}
#define XON   0X11
#define XOFF  0X13
#define RX_BUF_SIZE 32
#define XOFF_THRESH (RX_BUF_SIZE-(RX_BUF_SIZE/2))
#define XON_THRESH  (RX_BUF_SIZE/4)
uchar data_cnt=0;
extern uchar nb_rx_data,rx_index_wr,rx_index_rd;
extern uchar xdata rx_buffer[RX_BUF_SIZE];
extern bit tx_off;
void uart_rx_enable(void);
void uart_rx_disable(void);
void rx_buffer_wr(unsigned char rx_data);
uchar rx_buffer_rd(void);
void uart_tx(uchar tx_data);