用ZLG提供的ucos模板移植ucos到lpc2220＋2Mflash的目标板上，在做串口中断实验时，发送可以通过中断发送，但接收不能进入中断服务程序；
void uart0_isr(void)
{
uint8 ch = 0;
uint32 i = 0;
uint32 tmp = 0;
uint32 bak = 0;
struct UartStruct *ptr = &U0;
//OSIntEnter();
OS_ENTER_CRITICAL();
onled4();//接收数据时，灯不亮，未进入isr，发送正常
/*中断处理*/
VICVectAddr = 0x00;
OS_EXIT_CRITICAL();
}
void VICInit(void)
{
extern void IRQ_Handler(void);
extern void Timer0_Handler(void);
extern void Uart0_Handler(void);
VICProtection = 0;
VICIntEnClr = 0xffffffff;
VICDefVectAddr = (uint32)IRQ_Handler;
VICVectAddr0 = (uint32)Timer0_Handler;
VICVectCntl0 = (0x20 | 0x04);
VICVectAddr1 = (uint32)Uart0_Handler;//Interrupt source 6
VICVectCntl1 = (0x20 | VICIntSel_UART0);
//VICIntEnable = 1 << 4;
VICIntEnable |= ( (1 << 4) | (1 << 6));
}
/*串口通信任务*/
void task_uart(void *pdata)
{
//uint8 buf[10] = {0,1,2,3,4,5,6,7,8,9};
pdata = pdata;
init_uart(UART0,BD9600);
Rcv485_UART0();
Rcv485_UART1();
print("system start!
");
while (1) {
OSTimeDly(10);
rcvdatafrom485(UART0);
LED2Glint();
//print("system start!
");
}
}
通过计算机向目标板发送数据帧时，根本不能进入中断服务函数，不知道哪里出了问题，初次接触ucos，还请指教
|
楼主
标题置顶
标题高亮
