- Its regarding Send and Transfer utility [Qtalk :Talk over a communications line , SZ & RZ] in OS for PPC 
On Hyperterminal 

1. On HYPERTERMINAL command prompt 
If I run 
lsz : it gets hang, 

2. when I tried to transfer the file to disk, like 
TABs OF HYPERTERMINAL: 
     1. Transfer 
     2. Send file 
     3. select file 
     4. Zmodem With Crash Recovery. 
     5. Send 

- issues are like, 
1. some times hyperterminal always gets hang 
2. Sometimes show progress bar. It start only after running lrz on command prompt and then tried to transfer file. 
3. And if it shows progress bar then at the end of transfer of file, it gives error "status : Connection time out" 
and "No Response from Remote System".

Is it problem of exe lsz, lrz, sz rz under usr/qnx630/target/qnx6/ppcbe/usr/bin

Or is it problem of serial driver options "devc-ser8250" 

Please suggest solution to resolve the issue.