PIC 18F2525 UART max speed

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jabidof

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18f2525

Hello there,

Any idea how i can reach higher baud rate than 115kbits/s on PIC 18F series?
I'm connected to a FTDI chip and i'd like to go up to 1Mbits/s.

Thanks for your input.
 

18f2550 uart

According to the PIC18F2525's datasheet, you can have much higher baud rate than 115.2 kbps. Just use the formula in the datasheet with BRGH = 1, and high enough crystal frequency (watch out the baud rate error). For example, if you use 14.7456 MHz crystal, BRGH = 1, and SPBRG = 3, you would get a baud rate of 230.4 kbps, and even 0% baud rate error.

Cheers,
 

    J

    jabidof

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18F2550 has 2048 bytes of ram. My application (network protocol) needs more.

Thanks for your inputs
 

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