void RxIRQStart(void)
{
EnableIrq(BIT_UART2);
EnableSubIrq(BIT_SUB_RXD2);
ClearPending(BIT_UART2);
rSUBSRCPND=BIT_SUB_RXD2;
pISR_UART2=(U32)RxAndTxIRQ;
}
void comdownload(void)
{
ULONG size;
UCHAR *buf;
USHORT checksum;
puts("\nNow download file from uart0...\n");
downloadAddress = _NONCACHE_STARTADDRESS;
buf = (UCHAR *)downloadAddress;
temp = buf-4;
Uart_GetKey();
#ifdef USE_UART_INT
pISR_UART0 = (ULONG)Uart0RxInt; //串口接收数据中断
ClearSubPending(BIT_SUB_RXD0);
ClearPending(BIT_UART0);
EnableSubIrq(BIT_SUB_RXD0);
EnableIrq(BIT_UART0);
#endif
while((ULONG)temp<(ULONG)buf)
{
#ifdef USE_UART_INT
Led_Display(0);
Delay(1000);
Led_Display(15);
Delay(1000);
#else
*temp++ = Uart_Getch();
#endif
} //接收文件长度,4 bytes
size = *(ULONG *)(buf-4);
downloadFileSize = size-6;
#ifdef USE_UART_INT
printf("Download File Size = %d\n", size);
#endif
while(((ULONG)temp-(ULONG)buf)<(size-4))
{
#ifdef USE_UART_INT
Led_Display(0);
Delay(1000);
Led_Display(15);
Delay(1000);
#else
*temp++ = Uart_Getch();
#endif
}
#ifdef USE_UART_INT
DisableSubIrq(BIT_SUB_RXD0);
DisableIrq(BIT_UART0);
#endif
#ifndef USE_UART_INT
printf("Download File Size = %d\n", size);
#endif
checksum = 0;
for(size=0; size<downloadFileSize; size++)
checksum += buf[size];
if(checksum!=(buf[size]|(buf[size+1]<<8))) {
puts("Checksum fail!\n");
return;
}
puts("Are you sure to run? [y/n]\n");
while(1)
{
UCHAR key = getch();
if(key=='n')
return;
if(key=='y')
break;
}
call_linux(0, 193, downloadAddress);
}
