HSEROUT question

[aratti]

Hylan, I am a little lost! Let 's do step by step an analysis of your system.

1) Very likely your PC (laptop) has no serial port so you are using an USB to serial converter.

2) Your different device that operates at 2400 bauds is a RS232 serial device, which means that you will connect it to the PC via a serial cable. This serial cable should have two DB9 connectors, one to be inserted into the corresponding DB9 on your device and the other into the DB9 (male) of your USB/RS232 converter.

3) Your PIC board MUST have a RS232 connection since you are using the HSEROUT command, so I assume also this board has a DB9 connector.

It is possible that you plug the USB/RS232 converter directly (via DB9M to DB9F) to your boards, so you are not using a serial cable.

Now you need to made a serial cable for connecting your pic board to device that operates at 2400 bauds. This is not very difficult. You have to obtain two DB9 connectors that plug respectively into the pic board and into the 2400 bauds device board (these two boards should have a female conectors, if so you will need a males couple. But you do better check)

Once you have the correct DB9 connectors you should wire them in this way :

DB9 (pic device) DB9 (2400 bauds device)
--------------------------------------------------------
Pin 2 ----------------------> Pin 3
Pin 3 ----------------------> Pin 2
Pin 5 ----------------------> Pin 5
---------------------------------------------------------

Make the cable long as you desire, but not longer than 2 meters, plug this cable into the two devices, power up both devices and run your code, 2400 bauds device should receive the serial string you have coded.

Please note that a RS232 serial cable is not an USB cable.

Good luck

Al.