战舰串口接收问题，接收buf已设置很大了，但不能接收长字符串，源码如下

liuxiaowa

char UART2_RX_BUFliu[300]; 

char UART2_RX_BUF[300]; 

char GUI_liuxiao[300];


void USART2_IRQHandler(void)                     
{
u8 Res;
OSIntEnter();
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) 
{
Res =USART_ReceiveData(USART2); //(USART1->DR); 
if((USART_RX_end2&0x80)==0)
{
if((Res!=0x0d)&&(Res!=0x0a)&&(Res!=0x20))
{
UART2_RX_BUF[USART_RX_STA2&0X3F]= Res;
USART_RX_STA2++;
}
if((Res==0x0d)&&(USART_RX_STA2>1))  
{
UART2_RX_BUF[USART_RX_STA2]=',';
UART2_RX_BUF[USART_RX_STA2]='\0';
nRX2_Len_temp=USART_RX_STA2+2;
USART_RX_STA2 =0;
USART_RX_end2 =0x80;
strcpy(UART2_RX_BUFliu,UART2_RX_BUF); 
}  
if(USART_RX_end2&0x80)           
{
USART_RX_end2=0x00;

else if(sim900a_check_cmd2("+CCFG:"))
{strcpy(GUI_liuxiao,UART2_RX_BUFliu); GUIliuxiao=2;}  

else 
nRX2_Len_temp=0;
} 
} 
}
OSIntExit(); 
} 


让串口接收数如下：+CCFG:20,0,16,201,0,352,201,0,206,201,0,188,201,0,248,201,0,394,201,0,58,201,0,230,201,0,364,201,0,398,201,0,448,201,0,26,201,0,446,201,0,196,201,0,28,201,0,48,201,0,212,201,0,460,201,0,22,201,0,358,201

数据不能解析
如果缩短字符：+CCED:20,0,16,201,0,352,201,0,206,201,0,188,201,0
数据能解析

我定义的buf已经很大了，不能理解是啥问题。

liuxiaowa

UART2_RX_BUF[USART_RX_STA2&0X3F]= Res;    是这里问题  ，谢谢了

八度空间

USART2_IRQHandler函数里面的USART_RX_end2&0x80值要改的，看你贴出来的没改掉