HP 49g+ and HP 50g Connectivity

[RodFl]

Hi David,

Many thanks for your suggestions. Unfortunately all the settings are correct but I don't have a flag 78, the list of flags under MODE/Flags jumps from 76 to 79.

On further testing I can see that the 50g does connect, the message out of Conn4x is a little misleading.

Looking at the logs for both calculators the problem on the 50g is at the following stage, when establishing a data connection. The 50g times out but the 49g+ does not:

HP 50g

"send command = G
command packet = '(dollar sign x 3)t'
Status = Copying (dollar sign x 3)t
TX Receive begins for
SafeRd TimeOut
SafeRd TimeOut
No data, time count = 94
SafeRd TimeOut
No data, time count = 172"

It gets to here:

"SafeRd TimeOut
No data, time count = 2547
ReadFile exceeded maximum time for reads of zero bytes
Serious error, disconnecting
sending CAN
Connection Error."

Whereas the 49g+ log shows:

"send command = G
command packet = '(dollar sign x 3)t'
Status = Copying (dollar sign x 3)t
TX Receive begins for
0/128 bytes
 sent/recvd at 7529 bytes/s
Begin pulse  {
send command = M
SafeRd TimeOut
}  End pulse
Status =
Calculator model = 49
Calculator model = 49G+"

and the connection is successful.

N.B. the '(dollar sign x 3)' above is because the forum editor thinks the dollar sign is a command.

I've attached the complete log files.

Best Regards
Rod