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BF533 Decreasing silince time

Question asked by ama on Jun 7, 2011
Latest reply on Jun 14, 2011 by vinodbableshwar


I am working in a team to develop an existing DSP code; my mission now is to increase the number of messages in baud rate of 19200. One master (PC) one slave (micro controller), with RS-232 and RS-485, BF533.

In the code, the silence duration between two messages is:

one chartime=(11*e6)/19200=572.9 mico s


Silence time between to messages is 3.5 char, so

3.5 char==572.9 *3.5=2ms


And the best time space between two messages till now is 50 ms.

I asked an expert why not to increase the baud rate,  and he told me that it is possible but the rate of error will increase also.

I but a 120 ohm between the RS-485 in the RS-232 to RS-485 converter, but it did not affect the speed.


If anyone knows the answer, please reply.

Thank you in advance.