Connecting HP 49g to PC.

[matalog]

(01-15-2022 02:39 AM)Tracer21 Wrote:  Try swapping RX and TX lines. RX on the Calculator goes to TX on the 232 Adapter and vice-versa. Ground goes to ground.

Check section 3.1 here: http://www.geocities.ws/hpcables/cable49g.htm

49G can at most use 9600 Baud, so that should be fine. Don't need any other serial lines like RTS / CTS.

Does your 49G have XModem Server installed? Mine didn't until I upgraded the ROM.

I don't know if it does, I just bought it second hand. Is there a way to tell?

Say it doesn't? How might I update the ROM? Hopefully there is a way using my cable hack?