Answers Database
Hardware Debugger Cannot Communicate With HP-10.x OS Serial Port
Record #1873
Product Family: Software
Product Line: M1 Graphical/General
Product Part: Hardware Debugger
Product Version: 1.5
Problem Title:
Hardware Debugger Cannot Communicate With HP-10.x OS Serial Port
Problem Description:
Urgency: Standard
General Description:
The Hardware Debugger cannot communicate with HP-10.x OS serial
ports.
Solution 1:
To workaround this problem, your System Administrator must do
the following:
Configure the serial port as a terminal port. This creates a /dev/tty0p0 if using serial port 0 and
/dev/tty1p0 if using serial port 1. It also appends the following to /etc/inittab.
a0:3:respawn:/usr/sbin/getty -h tty0p0 9600
a1:3:respawn:/usr/sbin/getty -h tty1p0 9600
Edit /etc/inittab and comment out those getty lines.
Create a soft link to assign /dev/tty00 to /dev/tty0p0.
cd /dev
ln -s tty0p0 tty00
ln -s tty1p0 tty01
To activate those changes, reboot the system or type
init -q
Solution 2:
If re-configuring the parallel port does not work, then try
using a slower baud rate to download.
The following error messages have been seen when trying to
communicate at 115200 baud rate. When a slower baud rate was
chosen, the device was successfully programmed.
1. A dialog box with message "Communication Line is Broken"
When user selects OK or Carriage return.
2. Another Dialog box comes up with "Device is not configured.
Done is not high.
3. Third dialog box follows with "Cannot communicate with the
cable."
Upon confirmation, the Hardware Debugger staus bar changes to
"No cable"
End of Record #1873 - Last Modified: 12/14/98 10:42 |
