TQ2440不能进入串口中断？？？？
查询方式有用！中断设置如下
void Uart0ISRInit(void)
{
rGPHCON = 0x00faaa;
rGPHUP = 0x7ff;
rULCON0 = 0x3;
rUCON0 = 0x5;
rUFCON0 = 0;
rUMCON0 = 0;
rUBRDIV0 = 26;
rSUBSRCPND=0x3;
rSRCPND=0x1<<28; // open uart 中断
rINTPND=0x1<<0x28;
rINTSUBMSK=~(0x3);
rINTMSK=~(0x1<<0x28);//不屏蔽UART0中断
}
void __irq uartISP(void)
{
char ch;
Uart_Printf("In UART0 irq.");
rSUBSRCPND |= 0x3;
rSRCPND=0x1<<28; // open uart
rINTPND=0x1<<0x28;
if(rUTRSTAT0 & 1) //接收数据处理部分
{
ch = rURXH0; //接收字节数据
if(ch==0x55)
rGPBDAT = ~0x61; //亮两个LED
else
rUTXH0 = ch; //发送字节数据
}
else //发送数据处理部分
{
rGPBDAT = ~0x1e1; //亮4个LED输入非有效数据（汉字和一些特殊字符）就会亮起来了
Led_Display(2);
}
}
pISR_UART0=(unsigned)uartISP;
void Main(void)
{
char *mode;
int i;
U8 key;
U32 mpll_val = 0 ;
Port_Init();//端口初始化
// Isr_Init(); //中断初始化
key = 14;
mpll_val = (92<<12)|(1<<4)|(1);
//init FCLK=400M, so change MPLL first
ChangeMPllValue((mpll_val>>12)&0xff, (mpll_val>>4)&0x3f, mpll_val&3);
ChangeClockDivider(key, 12);
cal_cpu_bus_clk();
Uart0ISRInit();
consoleNum = 0; // 选择一个串口进行调试.
// Uart_Init( 0,115200 );//时钟，波特率
Uart_Select( consoleNum );//选择哪一个串口
Beep(2000, 100); //蜂鸣器响，初始化完成。
Uart_SendByte('\n');
Uart_Printf("<***************************************>\n");
Led_Display(8);
Clk1_Disable();
// Uart0ISRInit();
pISR_UART0=(unsigned)uartISP;
while(1)
{
//Led_Display(4);
}
}
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