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Calculating data rate of uart from baud rate...

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demetal

demetal

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Hi,

is there any method to calculate the data rate in bites/s or Mb/s using the baud rate in uart communcation between two pic microcontrollers 16f877a having oscillatos crystal of 8Mhz...

Please help...
 

Why not increment counter at each received datum, and so, take account during determined period ?

+++
 

Baud rate and Bits/s are not the same thing. Google Baud rate.
Baud Rate

Baud rate is characters/second.

How do you send a charater?
8N1, 8N2 9E1 7N3?
Each one is a different Bit/Sec (BPS) but the same baud.

Hope this helps
Red
 

i dont know about that... will the speed varies... can anyone tell me the bits/sec of this type....
 

Baud rate and Bits/s are not the same thing. Google Baud rate.

Baud rate is characters/second.
Click to expand...
Did you read the linked article? Baud rate is not characters per second. It's symbols per second. In a binary UART transmission, the symbols are bits. So baud and bit/s are the same number here. For the net data rate, start/stop framing has to be considered however. So you get 8 data bits from 10 transmitted bits in standard N-8-1 framing, resulting in 960 Bytes/s with 9600 Bd.
 

is there any method to increase the resulting 960 bytes/s to higher rates at least 1Mb/s
 

The highest uart baud rate achievable with a PIC16 is fosc/16, 500 kbaud in your case. So 50 kbyte/s is the maximum data rate.
 
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