113 lines
1.8 KiB
C
113 lines
1.8 KiB
C
#include "hal_defs.h"
|
|
#include "hal_uart.h"
|
|
#include "hal_board.h"
|
|
#include "UART_PRINT.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
|
|
|
|
void WaitUs(uint16 usec)
|
|
{
|
|
usec >>= 1;
|
|
while (usec--)
|
|
{
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
NOP();
|
|
//NOP();
|
|
}
|
|
}
|
|
/**********************************************************
|
|
func: 接收串口数据包
|
|
参数：
|
|
1. *buf -- 串口接收数据所存放的地方
|
|
2. maxlen -- 串口接收数据的最大长度
|
|
retuen: uint16 接收到的数据长度
|
|
***********************************************************/
|
|
uint16 uart_read(uint8 *buf, uint16 maxlen)
|
|
{
|
|
uint16 slen=0;
|
|
uint8 dtime=0;
|
|
while(dtime<20)
|
|
{
|
|
while(HalUARTRead(buf+slen, 1))
|
|
{
|
|
slen++;
|
|
if(slen>=maxlen)
|
|
return slen;
|
|
dtime=0;
|
|
}
|
|
WaitUs(30); // Wait 30us;
|
|
dtime++;
|
|
}
|
|
return slen;
|
|
}
|
|
/*****
|
|
按printf格式打印输出字符串
|
|
|
|
***/
|
|
void printf_str( char *buf, char *fmt,... )
|
|
{
|
|
va_list ap;
|
|
va_start(ap,fmt);
|
|
vsprintf(buf,fmt,ap);
|
|
va_end(ap);
|
|
}
|
|
/********/
|
|
void uart_printf(char *fmt,...)
|
|
{
|
|
va_list ap;
|
|
char str[256];
|
|
|
|
va_start(ap,fmt);
|
|
vsprintf(str,fmt,ap);
|
|
UartWrite(str,strlen(str));
|
|
va_end(ap);
|
|
}
|
|
|
|
void uart_enter(void)
|
|
{
|
|
|
|
uart_printf("\r\n");
|
|
|
|
}
|
|
|
|
void uart_datas(void * fmt,uint16 len)
|
|
{
|
|
char * ptr;
|
|
ptr=fmt;
|
|
while(len--)
|
|
{
|
|
uart_printf("%02x ",*ptr );
|
|
ptr++;
|
|
}
|
|
uart_enter();
|
|
}
|
|
|
|
uint8 lrc_checksum(uint8* buf, uint8 len)
|
|
{
|
|
uint8 lrc=0;
|
|
while(len--)
|
|
{
|
|
lrc+=*buf;
|
|
buf++;
|
|
}
|
|
lrc =~lrc;
|
|
lrc++;
|
|
return lrc;
|
|
}
|