Hi,you all,

After successfully porting on LITE_DW,I tried my best to make my design board work.But no good serial output by now.At first,there were some characters displayed on the screen in a state disorder with help of BDI2000 and GDB.I,HOWEVER,cannot see them after making some changes on hardware and software.For no CPLD on my board,there is no hardware handshake circuit.Does it matter?

My MPC8xx connects the RS232 transcerer chip as following: 1.SMC1

MPC823E MAX3225 PB24-SMC1TXD -------------- T1IN PB25-SMC1RXD -------------- R1OUT PB22-EN ------------- FOFF

Related code in serial.c:

2.SCC3

MPC823E MAX3225 PB24-SCC3TXD3 -------------- T1IN PB25-SCC3RXD3 -------------- R1OUT PC13-RTS3 -------------- T2IN PB23-CTS -------------- R2OUT PB22-EN ------------- FOFF

Related code in serial.c:

Thanks for reading & any help.

Best regards,

SAM

__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com