Interrupt problem. Double check the irq you specified in the uart setup stuff.
Mark -- Yuxiao Xi wrote: >Hello,all, > I am developing my board with CPU MPC8240 and a UART ST16C2552. >I use MontaVista Linux 2.1. Now I have successfully logged in the >shell.But there is a question that I can't resolve:( I am sure that the >UART is successfully initialized except that ST16C2552 is detected as >ST16650.I debugged the UART interrupt and the printk info showed that it >was OK. > >QUESTION: when I input commands such as 'ls', 'cd /dev' on the shell, >the characters of these commands are printed very slow on the screen >and the command execution results as well. I think these commands and >their execution results are printed through UART interrupt.Is MPC8240 >interrupt ACK so slow? BTW: while system booting,the UART prints very >quickly in polling print mode. > >????????????????Yuxiao Xi >????????????????xiyuxiao at harbournetworks.com >????????????????????2003-09-30 > > > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
