Serial Baudrate 115200

[kblim]

Hi all,
Could anyone guide me about setting up the serial communication to 115200 baudrate?

Thanks


kblim

[Bruce]

I use DEBUG & DEBUGIN. These commands produce much smaller code, and
you can get higher data-rates like 19200 with a 4MHz osc.

DEFINE OSC 20
DEFINE DEBUG_REG PORTC
DEFINE DEBUGIN_REG PORTC
DEFINE DEBUGIN_BIT 7
DEFINE DEBUG_BIT 6 
DEFINE DEBUG_MODE 0 '1 = Inverted, 0 = true
DEFINE DEBUGIN_MODE 0
DEFINE DEBUG_BAUD 19200
 
X VAR BYTE[3]
 
MAIN:
    DEBUGIN 6000,NoData,[WAIT("A"),str X\3]
    DEBUG "Received:  ",str X\3,13,10
    GOTO MAIN
 
NoData:
    DEBUG "Nada",13,10
    GOTO Main
 
    END

This example works with a max232 PIC-PC interface. If you need direct, then
just change mode to inverted.

[kblim]

Hi Bruce,

Just wonder how to use Serout2, Serin2 with 115200 baudrate.


From the formula :int(1000000/baudrate)-20,

if use 115200 i will have int(1000000/115200)-20 = -12


Please help.


kblim

[Bruce]

If the baud rate calc doesn't work out to a positive number, then I'm pretty
sure the data rate you need isn't supported by the command.

[seinfield]

Use this:
DEFINE HSER_SPBRG 21 'Configuración de velocidad de USART
DEFINE HSER_TXSTA 36 'a 115200 baudios.

Now you can use hserin and hserout at 115200 bauds

[mister_e]

Yeah but in synchronous mode... and all that imply too