I am attempting to transfer data to/from my HP48sx calculator via kermit running under either Windows/DOS or Linux. It does not work.
On a different computer running the same software (in a DOS prompt), the transfer works fine, so I am certain that the HP48 and the cable are not damaged. Instead, it is a problem with my serial port setup on the computer.
On the other computer (the one that works fine), I use a DOS based kermit and the commands:
set port com1
set speed 9600
set parity none
-- then I send the file and all is fine.
It does not work fine on my home computer. However, if I copy a text file to the com port I can see that the data packets will arrive:
HP48: open the connection (I/O -> OPENI)
Linux: cp test /dev/ttyS0
HP48: I/O -> BUFL
HP48: drop
HP48: I/O -> SRECV
-----------------
More information:
(in Linux)
setserial -g /dev/ttyS*
/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3
/dev/ttyS2, UART: 16550A, Port: 0x03e8, IRQ: 4
/dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
ttyS0 = com1, ttyS1= com2, ttyS2 = com3, ttyS3 = com4
I have a modem on com2. Com1 and com3 are physical ports on the back of the computer. There is nothing attached to com3.
I do not require the modem, since I use a network card for internet connectivity.
Any ideas on how the get the data transfers via kermit to function properly?
Stephen