PIC16F1947 - Handling Rs-485 [solved]

[RckRllRfg]

Hi Everyone -

I have been working with the PIC16F1947 for the past 2 months. I have a program now up and running that is using both UARTS. This program was written in C using the CCS compiler.

I would like to add the ds30 bootloader to this device.

I am planning on communicating with several PIC16F1947 PICs via RS-485 Half Duplex

The transceiver being used is a Linear LTC1387IG which has several control signals including:

RX Enable RXEN
TX Enable DXEN
485/232 mode
OUT-ON

In the settings.inc file, I see the provisions for the TXENABLE. The question is –
1) Do I need to have TX out from the PIC to the source computer?

2) If I do need to have this TX back to the source, can this handle some addressing given that I will have multiple units on the RS-485 line?

Any guidance on this would be greatly appreciated.

Regards -

RckRllRfg

[Mikael Gustavsson]

Hi,
1) I am not sure what you mean here. The PC needs to receive information from the PIC.
2) ds30 Loader does not handle any addressing and/or 9-bit modes.

[Mikael Gustavsson]

If you need something custom feel free to contact me via www.ds30loader.com