I am using an RS 485 serial connection through which I need to send S19 files for my boot loader project. Since it is a half duplex mode of connection, I need to toggle a dedicated pin before sending and receiving. I am using this terminal application. I got the desired output when I sent a string.
But I couldn't get any output when I try to load a file (s19 file to be specific).
Is it because of the Half-Duplex connection I use ?
Will an RS 485 to RS 232 converter change the mode from Half duplex to Full duplex ?
UPDATE
I am working on Freescale's MKE02Z64VLD2 microcontroller. I just now found out that there is no RTS CTS pin in my controller. (Check Comment Link 1)
This is the Serial connection which I use,
And the Terminal application is not a boot loader GUI, I found it in this site. (Check comment Link 2)
Thanks for helping.
I am posting the Links in the comments section because I dont have enough reputation to post more than 2 links
Best Answer
No. A converter merely changes the electrical signalling and gives you an explicit (typically modem control line reuse) or automatic (time based) control of the transmit enable.
Adaptation to a half-duplex scheme must be made by the software at each end.
As for why exactly your setup failed, that is impossible to answer with the limited information given, however it software not written with this mode of communication in mind could be a key part of the problem.